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Grasslands of the World.pdf - Disasters and Conflicts - UNEP

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The views expressed in this publication are those <strong>of</strong> <strong>the</strong> author(s)<br />

<strong>and</strong> do not necessarily reflect <strong>the</strong> views <strong>of</strong> <strong>the</strong> Food <strong>and</strong> Agriculture<br />

Organization <strong>of</strong> <strong>the</strong> United Nations.<br />

The mention or omission <strong>of</strong> specific companies, <strong>the</strong>ir products or<br />

br<strong>and</strong> names does not imply any endorsement or judgement by <strong>the</strong><br />

Food <strong>and</strong> Agriculture Organization <strong>of</strong> <strong>the</strong> United Nations.<br />

The designations employed <strong>and</strong> <strong>the</strong> presentation <strong>of</strong> material<br />

in this information product do not imply <strong>the</strong> expression <strong>of</strong> any<br />

opinion whatsoever on <strong>the</strong> part <strong>of</strong> <strong>the</strong> Food <strong>and</strong> Agriculture<br />

Organization <strong>of</strong> <strong>the</strong> United Nations concerning <strong>the</strong> legal or<br />

development status <strong>of</strong> any country, territory, city or area or <strong>of</strong><br />

its authorities, or concerning <strong>the</strong> delimitation <strong>of</strong> its frontiers or<br />

boundaries.<br />

ISBN 92-5-105337-5<br />

All rights reserved. Reproduction <strong>and</strong> dissemination <strong>of</strong> material in this<br />

information product for educational or o<strong>the</strong>r non-commercial purposes are<br />

authorized without any prior written permission from <strong>the</strong> copyright holders<br />

provided <strong>the</strong> source is fully acknowledged. Reproduction <strong>of</strong> material in this<br />

information product for resale or o<strong>the</strong>r commercial purposes is prohibited<br />

without written permission <strong>of</strong> <strong>the</strong> copyright holders. Applications for such<br />

permission should be addressed to <strong>the</strong> Chief, Publishing Management Service,<br />

Information Division, FAO, Viale delle Terme di Caracalla, 00100 Rome, Italy<br />

or by e-mail to copyright@fao.org<br />

© FAO 2005


CONTENTS<br />

Foreword xiii<br />

Acknowledgements xv<br />

Contributors xvii<br />

Glossary <strong>of</strong> technical terms <strong>and</strong> abbreviations used in <strong>the</strong> text xviii<br />

Chapter 1 – Introduction 1<br />

Purpose <strong>of</strong> <strong>the</strong> book 13<br />

Structure <strong>of</strong> <strong>the</strong> book 13<br />

Complementary information resources 16<br />

References 17<br />

Chapter 2 – The changing face <strong>of</strong> pastoral systems in grass-dominated<br />

ecosystems <strong>of</strong> eastern Africa<br />

R.S. Reid, S. Serneels, M. Nyabenge <strong>and</strong> J. Hanson<br />

19<br />

Scope 19<br />

Mapping rangel<strong>and</strong>s, livestock <strong>and</strong> pastoral peoples 21<br />

Plant communities in grassl<strong>and</strong>s <strong>and</strong> rangel<strong>and</strong>s 31<br />

Political <strong>and</strong> social systems in pastoral l<strong>and</strong>s <strong>of</strong> eastern Africa 38<br />

Integration <strong>of</strong> grassl<strong>and</strong>s into smallholder farming systems<br />

Case studies <strong>of</strong> <strong>the</strong> evolution <strong>of</strong> extensive range systems over <strong>the</strong><br />

44<br />

last 40 years 45<br />

General<br />

Evolution <strong>of</strong> l<strong>and</strong> use changes in <strong>the</strong> semi-arid rangel<strong>and</strong>s surrounding <strong>the</strong><br />

45<br />

Serengeti-Mara Ecosystem, straddling <strong>the</strong> Kenyan–Tanzanian border 46<br />

Protected areas <strong>and</strong> local l<strong>and</strong> use: source <strong>of</strong> conflict in Tanzania<br />

Control <strong>of</strong> <strong>the</strong> tsetse fly <strong>and</strong> evolution <strong>of</strong> a subhumid-grassl<strong>and</strong> in<br />

48<br />

southwestern Ethiopia: Ghibe Valley 50<br />

Current research in pastoral systems <strong>of</strong> eastern Africa 51<br />

Management <strong>of</strong> grassl<strong>and</strong>s 51<br />

Desertification: driven by climate or overgrazing by livestock?<br />

How have pastoral ecosystems changed in response to livestock<br />

54<br />

<strong>and</strong> human-use changes? 57<br />

Overgrazing 57<br />

Competition between livestock <strong>and</strong> wildlife 57<br />

Changes in rangel<strong>and</strong> burning regimes 57<br />

Rangel<strong>and</strong> fragmentation <strong>and</strong> loss <strong>of</strong> wildlife habitat 57<br />

Impacts <strong>of</strong> expansion <strong>of</strong> cultivation <strong>and</strong> settlement 58<br />

Carbon sequestration 58


iv<br />

Bush encroachment 60<br />

Rehabilitation <strong>of</strong> grassl<strong>and</strong>s 61<br />

Priorities for research <strong>and</strong> development programmes in pastoral l<strong>and</strong>s 62<br />

Some history 62<br />

Rapidly changing systems with changing needs<br />

Focus generally on human welfare <strong>and</strong> maintaining environmental goods<br />

63<br />

<strong>and</strong> services 63<br />

More emphasis on providing pastoral people with high quality information<br />

Restoring pastoral access to key resources, increasing mobility <strong>and</strong> flexibility, <strong>and</strong><br />

63<br />

ensuring security<br />

Addressing gaps in our knowledge about how pastoral systems work in<br />

64<br />

eastern Africa 64<br />

Addressing gaps in our knowledge about how <strong>the</strong>se systems can be improved 65<br />

References 65<br />

Chapter 3 – <strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa<br />

Anthony R. Palmer <strong>and</strong> Andrew M. Ainslie<br />

77<br />

Introduction 78<br />

Physical features 81<br />

Climate 83<br />

Rainfall 83<br />

Seasonality <strong>of</strong> rainfall 84<br />

Temperatures 84<br />

Soils 85<br />

People 86<br />

Livestock 87<br />

Wildlife 88<br />

L<strong>and</strong> tenure 89<br />

Freehold <strong>and</strong> commercial sector 90<br />

Communal <strong>and</strong> subsistence sector 90<br />

Authorities responsible for management 92<br />

Market systems 92<br />

L<strong>and</strong>forms <strong>and</strong> agro-ecological zones 93<br />

Biomes 93<br />

Grassl<strong>and</strong> 94<br />

Savannah 95<br />

Nama-karoo 97<br />

Thicket 97<br />

Succulent karoo 99<br />

Fynbos 100<br />

Forest 100


Pastoral <strong>and</strong> agricultural systems 100<br />

Veldt grazing 101<br />

Legume <strong>and</strong> fodder introduction 105<br />

Dryl<strong>and</strong> fodder 107<br />

Irrigated fodder 107<br />

Exceptional circumstances fodder 108<br />

Constraints to pasture <strong>and</strong> fodder production <strong>and</strong> improvement 109<br />

Evolution <strong>of</strong> grassl<strong>and</strong>s over <strong>the</strong> last 40 years 110<br />

Research 111<br />

Management <strong>of</strong> grassl<strong>and</strong>s 112<br />

Development <strong>of</strong> techniques for <strong>the</strong> rehabilitation <strong>of</strong> grassl<strong>and</strong>s 112<br />

Sustainable management <strong>of</strong> <strong>the</strong> environment <strong>and</strong> maintenance <strong>of</strong> biodiversity 114<br />

Seed production<br />

Recommendations <strong>and</strong> lessons learned concerning sustainable grassl<strong>and</strong><br />

114<br />

management 114<br />

Maintenance <strong>of</strong> production <strong>and</strong> productivity 115<br />

Priorities for <strong>the</strong> development <strong>of</strong> programmes <strong>and</strong> research 115<br />

References 116<br />

Chapter 4 –<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia<br />

Andrés F. Cibils <strong>and</strong> Pablo R. Borrelli<br />

121<br />

Introduction 122<br />

Political system 128<br />

L<strong>and</strong> tenure 128<br />

Aboriginal distribution 128<br />

Welsh colonization 129<br />

First settlers 129<br />

Last settlers 129<br />

Management authorities 130<br />

Market systems 130<br />

Wool market systems 130<br />

Meat marketing 131<br />

Dominant natural vegetation 131<br />

Patagonian shrub steppes 133<br />

Semi-deserts <strong>and</strong> shrub steppes 134<br />

Shrub-grass <strong>and</strong> grass-shrub steppes 134<br />

Grass steppes 135<br />

Monte shrubl<strong>and</strong>s <strong>and</strong> Monte ecotone 135<br />

Pastoral <strong>and</strong> agricultural systems 136<br />

Sheep farming systems 138<br />

v


vi<br />

Grazing management 139<br />

Sheep management 140<br />

Sheep breeds <strong>and</strong> genetic improvement 140<br />

Fine-wool production systems 140<br />

Lamb <strong>and</strong> fine-crossbred-wool production systems 140<br />

Evolution <strong>of</strong> Patagonian grassl<strong>and</strong>s over <strong>the</strong> last 40 years<br />

Ongoing research, management, restoration <strong>and</strong> biodiversity maintenance<br />

141<br />

activities 143<br />

Research activities 143<br />

Management activities 146<br />

Restoration activities 147<br />

Biodiversity maintenance 148<br />

Seed production 149<br />

Recommendations <strong>and</strong> lessons learned 149<br />

Adaptive management – <strong>the</strong> Santa Cruz example 150<br />

The value <strong>of</strong> simple or flexible stocking strategies 151<br />

Conflict between short- <strong>and</strong> long-term production 153<br />

The role <strong>of</strong> Decision Support Systems 153<br />

Priorities for development programmes <strong>and</strong> research 154<br />

References 155<br />

Chapter 5 – The South American Campos ecosystem<br />

Olegario Royo Pallarés (Argentina), Elbio J. Berretta (Uruguay) <strong>and</strong><br />

Gerzy E. Maraschin (Brazil)<br />

171<br />

Introduction 171<br />

General description <strong>of</strong> <strong>the</strong> region 173<br />

Climate 173<br />

Livestock production 173<br />

Wildlife 173<br />

Floristic composition 174<br />

Climax vegetation 174<br />

Grassl<strong>and</strong> types <strong>and</strong> production systems in Argentina 175<br />

Growth <strong>and</strong> forage production 176<br />

Production systems 178<br />

Productivity <strong>of</strong> <strong>the</strong> best farms 178<br />

Grassl<strong>and</strong> types <strong>and</strong> production systems in Uruguay 178<br />

Vegetation limitations for animal production 184<br />

Production systems 186<br />

Grassl<strong>and</strong> production systems in Sou<strong>the</strong>rn Brazil 190<br />

Dry matter accumulation in natural grassl<strong>and</strong>s 193<br />

Optimizing animal production from natural grassl<strong>and</strong> ecosystems 195


Natural grassl<strong>and</strong> dynamics 198<br />

Fertilizing Campos grassl<strong>and</strong> 199<br />

Fertilization in Argentina 199<br />

Fertilization <strong>of</strong> Campos <strong>Grassl<strong>and</strong>s</strong> in Uruguay 200<br />

Fertilization <strong>of</strong> natural grassl<strong>and</strong>s in sou<strong>the</strong>ast Brazil 202<br />

Structural changes on fertilized natural grassl<strong>and</strong>s in SE Brazil 203<br />

Improvement techniques 205<br />

Over-seeding 205<br />

Legume introduction 206<br />

Sward preparation for seeding 207<br />

Legumes for improvement 207<br />

Stock management 209<br />

Research <strong>and</strong> development priorities 209<br />

Ecological grassl<strong>and</strong> management for maintaining productivity 210<br />

References 212<br />

Chapter 6 – <strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America<br />

Rex D. Pieper<br />

221<br />

Introduction 221<br />

Location <strong>and</strong> general description <strong>of</strong> <strong>the</strong> region 222<br />

Climate 225<br />

Topography <strong>and</strong> soils 226<br />

Fauna 227<br />

Vegetation patterns 230<br />

Primary production 234<br />

Pastoral <strong>and</strong> Agricultural Systems 236<br />

Crop production 236<br />

Grazing management 237<br />

Balancing seasonal variations <strong>of</strong> forage supply 240<br />

Grazing systems 241<br />

Intensification? 242<br />

Rangel<strong>and</strong> burning 244<br />

Development <strong>of</strong> grassl<strong>and</strong>s 244<br />

Current status <strong>of</strong> grassl<strong>and</strong> research <strong>and</strong> management 246<br />

Future <strong>of</strong> <strong>the</strong> Great Plains 251<br />

References 251<br />

Chapter 7 – Grazing management in Mongolia<br />

J.M. Suttie<br />

265<br />

Introduction 265<br />

Changes in administrative systems in <strong>the</strong> twentieth century 273<br />

vii


viii<br />

Grazing l<strong>and</strong>s, pasture <strong>and</strong> fodder 276<br />

Hay from natural pasture in Arkhangai 279<br />

Grazing livestock production 283<br />

Livestock in herding systems 284<br />

Evolution <strong>of</strong> stock numbers 288<br />

Intensive livestock production 291<br />

The present grazing situation 294<br />

The recent droughts <strong>and</strong> zuds 301<br />

Sustainability 302<br />

References 303<br />

Chapter 8 – The Tibetan Steppe<br />

Daniel J. Miller<br />

305<br />

Introduction 305<br />

General description 307<br />

Climate 308<br />

Grassl<strong>and</strong> biodiversity 309<br />

Dominant natural vegetation 311<br />

Classification <strong>of</strong> grassl<strong>and</strong> types <strong>and</strong> plant communities 316<br />

Vegetational attributes 317<br />

Botanical composition 317<br />

Grassl<strong>and</strong> productivity 318<br />

Nutrient content <strong>of</strong> herbage 318<br />

Grassl<strong>and</strong> degradation 319<br />

The Tibetan Pastoral Production System 320<br />

Historical <strong>and</strong> cultural aspects 321<br />

Livestock management 323<br />

Herds on <strong>the</strong> move 326<br />

L<strong>and</strong> tenure 327<br />

Transformation <strong>of</strong> <strong>the</strong> traditional pastoral production system 328<br />

Snowstorms <strong>and</strong> pastoral system dynamics 331<br />

Dilemma on <strong>the</strong> Tibetan Steppe 332<br />

Mobility 333<br />

Conclusion 335<br />

References 337<br />

Chapter 9 – Australian grassl<strong>and</strong>s<br />

John G. McIvor<br />

343<br />

Introduction 343<br />

Location 344<br />

Physical features 344


Climate 344<br />

Rainfall 344<br />

Temperature <strong>and</strong> evaporation 345<br />

Growing seasons 346<br />

Soils 347<br />

Livestock 347<br />

Wildlife 347<br />

Social aspects <strong>and</strong> institutions 348<br />

People 348<br />

Political system 348<br />

L<strong>and</strong> tenure <strong>and</strong> ownership 348<br />

Authorities responsible for l<strong>and</strong> management 349<br />

Market systems 349<br />

Pastoral <strong>and</strong> agricultural systems 350<br />

Natural vegetation 353<br />

Tropical tall-grass 353<br />

Brigalow 355<br />

Xerophytic mid-grass 356<br />

Temperate tall-grass 356<br />

Temperate short-grass 356<br />

Sub-alpine sodgrass 357<br />

Saltbush-xerophytic mid-grass 357<br />

Acacia shrub–short-grass 358<br />

Xerophytic tussockgrass 359<br />

Xerophytic hummockgrass 359<br />

Sown pastures 359<br />

Temperate pastures 360<br />

Tropical pastures 362<br />

Available species <strong>and</strong> cultivars 364<br />

Seed production 364<br />

Current grassl<strong>and</strong> issues 364<br />

Research 364<br />

Management <strong>of</strong> grassl<strong>and</strong>s 365<br />

Resource issues <strong>and</strong> rehabilitation 368<br />

Biodiversity in grassl<strong>and</strong>s 369<br />

Environmental management<br />

Sustainable pasture management: learning from <strong>the</strong> past, managing for<br />

369<br />

<strong>the</strong> future 370<br />

Importance <strong>of</strong> legumes 371<br />

Role <strong>of</strong> native pastures 372<br />

Environmental weeds 373<br />

ix


x<br />

Future 374<br />

References 374<br />

Chapter 10 – The Russian Steppe<br />

Joseph G. Boonman <strong>and</strong> Sergey S. Mikhalev<br />

381<br />

Introduction 381<br />

The steppe in perspective 382<br />

Semantics 384<br />

Climate, vegetation <strong>and</strong> soils 384<br />

Ecological classification 385<br />

Ecological (site) potential 386<br />

Ramenskii’s grassl<strong>and</strong> classification 387<br />

Botanical condition (ecological monitoring) 391<br />

Steppe dynamics in relation to botanical composition 393<br />

Wea<strong>the</strong>r 393<br />

From fallow to steppe 393<br />

The Steppe <strong>and</strong> its types 394<br />

Forest steppe 395<br />

Steppe 396<br />

Virgin steppe 396<br />

Semi-desert 397<br />

Meadow types 399<br />

Liman 399<br />

Floodplain meadows 399<br />

Fallow 401<br />

Mid-term to old fallow 401<br />

Young fallow 402<br />

Avenues <strong>of</strong> steppe improvement 402<br />

Management interventions 403<br />

Grazing 403<br />

Grazing (stocking) management 405<br />

Haymaking 405<br />

Fire 406<br />

Ploughing 406<br />

Physical improvements 408<br />

Examples <strong>of</strong> <strong>the</strong> effect <strong>of</strong> management on botanical composition 408<br />

Fertilizer 409<br />

Mid-term depression 410<br />

Sown forage 410<br />

The dilemma 411


Crop-pasture rotations 411<br />

Physical effects <strong>of</strong> grasses on <strong>the</strong> soil 412<br />

Mixed farming based on crop-grass rotations 412<br />

Conclusions 413<br />

References 414<br />

Chapter 11 – O<strong>the</strong>r grassl<strong>and</strong>s 417<br />

Introduction 417<br />

Africa 417<br />

North Africa 417<br />

West Africa 419<br />

Madagascar 424<br />

South America 426<br />

The Llanos 426<br />

The Gran Chaco 427<br />

Pampas 430<br />

Flooding Pampas grassl<strong>and</strong>s 431<br />

Cropl<strong>and</strong> Pampas cultivated pastures 432<br />

Monte shrubl<strong>and</strong> 433<br />

Asia 434<br />

Central Asia 434<br />

China 436<br />

South Asia 443<br />

Himalaya-Hindu Kush 443<br />

India 448<br />

Pakistan 449<br />

The Near East 451<br />

Syrian Arab Republic 451<br />

Jordan 453<br />

Europe 455<br />

Turkey 455<br />

References 459<br />

Chapter 12 – Grassl<strong>and</strong> perspectives 463<br />

Introduction 463<br />

Grassl<strong>and</strong> systems 463<br />

The state <strong>of</strong> <strong>the</strong> grassl<strong>and</strong>s 464<br />

Grassl<strong>and</strong> development, improvement <strong>and</strong> rehabilitation 469<br />

Grassl<strong>and</strong> resources 469<br />

Pasture development methods 471<br />

xi


xii<br />

Herd management 474<br />

Stocking rates <strong>and</strong> stock distribution 476<br />

The lean season 477<br />

Stratification 479<br />

Sown pasture <strong>and</strong> fodder 480<br />

Sown fodder 481<br />

Social <strong>and</strong> economic factors 486<br />

Tenure 486<br />

Markets <strong>and</strong> trade 487<br />

Herder organization <strong>and</strong> community participation 487<br />

Demotic factors 488<br />

Diversification 488<br />

Grassl<strong>and</strong> in <strong>the</strong> environment 488<br />

Some conclusions 491<br />

References 493<br />

Index 495


FOREWORD<br />

The Food <strong>and</strong> Agriculture Organization <strong>of</strong> <strong>the</strong> United Nations has long<br />

been concerned with grassl<strong>and</strong>s, forage crops <strong>and</strong> pastoral development<br />

issues, which have been <strong>the</strong> focus <strong>of</strong> various field-based activities <strong>and</strong> Regular<br />

Programme work <strong>of</strong> <strong>the</strong> Grassl<strong>and</strong> <strong>and</strong> Pasture Crops Group within <strong>the</strong><br />

Crop <strong>and</strong> Grassl<strong>and</strong> Service.<br />

<strong>Grassl<strong>and</strong>s</strong> cover a very large portion <strong>of</strong> <strong>the</strong> earth’s surface <strong>and</strong> are<br />

important as a feed source for livestock, as a habitat for wildlife, for<br />

environmental protection <strong>and</strong> for <strong>the</strong> in situ conservation <strong>of</strong> plant genetic<br />

resources. In both developed <strong>and</strong> developing countries, many millions<br />

<strong>of</strong> livestock farmers, ranchers <strong>and</strong> pastoralists depend on grassl<strong>and</strong>s <strong>and</strong><br />

conserved products such as hay <strong>and</strong> silage <strong>and</strong> on a range <strong>of</strong> fodder crops for<br />

<strong>the</strong>ir livelihoods. Rapid increases in human <strong>and</strong> livestock populations have<br />

contributed to increased pressures on <strong>the</strong> world’s grassl<strong>and</strong>s, particularly in<br />

arid <strong>and</strong> semi-arid environments. Now more than ever, information is needed<br />

on <strong>the</strong> status <strong>of</strong> <strong>the</strong> world’s grassl<strong>and</strong>s.<br />

FAO, through <strong>the</strong> Grassl<strong>and</strong> <strong>and</strong> Pasture Crops Group, has endeavoured<br />

over many years to make available information on grassl<strong>and</strong> <strong>the</strong>mes to<br />

a range <strong>of</strong> audiences. Earlier books included those <strong>of</strong> Whyte, Nillson-<br />

Leissner <strong>and</strong> Trumble (1969) on Legumes in Agriculture <strong>and</strong> Whyte, Moir<br />

<strong>and</strong> Cooper (1975) on Grasses in Agriculture, Tropical Grasses by Skerman<br />

& Riveros (1990) <strong>and</strong> Tropical Forage Legumes by Skerman, Cameron <strong>and</strong><br />

Riveros (1988), Pasture - cattle - coconut systems by Reynolds (1995), with<br />

Managing Mobility in African <strong>Grassl<strong>and</strong>s</strong> by Niamir-Fuller (1999). More<br />

recent publications have included studies on: Hay <strong>and</strong> Straw Conservation<br />

(Suttie, 2000); Silage in <strong>the</strong> Tropics (t’Mannetje, 2000); Grassl<strong>and</strong> Resource<br />

Assessment (Harris, 2001); Transhumant Grazing Systems in Temperate Asia<br />

(Suttie & Reynolds, 2003); Know to Move, Move to Know (Schareika, 2003);<br />

Site-Specific Grasses <strong>and</strong> Herbs (Krautzer, Peratoner <strong>and</strong> Bozzo, 2004); Wild<br />

<strong>and</strong> Sown Grasses (Peeters, 2004); Fodder Oats: a world overview (Suttie &<br />

Reynolds, 2004); Forage Legumes for Temperate <strong>Grassl<strong>and</strong>s</strong> (Frame, 2005);<br />

<strong>and</strong> <strong>Grassl<strong>and</strong>s</strong>: Developments, Opportunities, Perspectives (Reynolds &<br />

Frame, 2005). The publications are complemented by detailed information on<br />

grassl<strong>and</strong> species <strong>and</strong> extensive Country Pasture Resource Pr<strong>of</strong>iles to be found<br />

on <strong>the</strong> FAO Grassl<strong>and</strong> Web site at .<br />

The present book provides an overview <strong>of</strong> a range <strong>of</strong> grassl<strong>and</strong> systems<br />

worldwide, with contributions by experts from many regions, <strong>and</strong> in a final<br />

chapter briefly assesses <strong>the</strong> state <strong>of</strong> <strong>the</strong> grassl<strong>and</strong>s, <strong>the</strong>ir management, various<br />

grassl<strong>and</strong> resources, <strong>the</strong> complementary roles <strong>of</strong> sown pastures, fodder crops<br />

<strong>and</strong> natural grassl<strong>and</strong>s <strong>and</strong> concludes by looking at various social, economic<br />

xiii


xiv<br />

<strong>and</strong> environmental factors. Researchers, grassl<strong>and</strong> scientists <strong>and</strong> policymakers<br />

will find <strong>the</strong> material useful <strong>and</strong> <strong>the</strong> book will contribute towards<br />

<strong>the</strong> accumulated knowledge on <strong>the</strong> world’s grassl<strong>and</strong>s. The contributions<br />

<strong>of</strong> authors are much appreciated by FAO in its efforts to disseminate<br />

information on grassl<strong>and</strong>s <strong>and</strong> pastoral systems. The considerable input<br />

made by <strong>the</strong> editors is particularly acknowledged – retired staff member<br />

James Suttie, <strong>and</strong> Stephen Reynolds <strong>and</strong> Caterina Batello <strong>of</strong> <strong>the</strong> Grassl<strong>and</strong><br />

<strong>and</strong> Pasture Crops Group <strong>of</strong> <strong>the</strong> Crop <strong>and</strong> Grassl<strong>and</strong> Service – both for <strong>the</strong>ir<br />

personal contributions <strong>and</strong> Stephen Reynolds for ensuring that <strong>the</strong> book was<br />

brought to publication.<br />

Mahmoud Solh<br />

Director<br />

Plant Production <strong>and</strong> Protection Division<br />

FAO Agriculture Department


ACKNOWLEDGEMENTS<br />

This publication is based on a number <strong>of</strong> regional <strong>and</strong> country studies written<br />

by various authors, who are acknowledged in <strong>the</strong> text. Particular thanks to Dr<br />

Wolfgang Bayer, who assisted with <strong>the</strong> early review <strong>of</strong> some <strong>of</strong> <strong>the</strong> chapters.<br />

In locating <strong>and</strong> contacting authors to prepare papers, <strong>the</strong> following provided<br />

much appreciated assistance: Pr<strong>of</strong>. Klaus Kellner, School <strong>of</strong> Environmental<br />

Sciences <strong>and</strong> Development, Potchefstroom University, South Africa; Drs<br />

Dennis Cash <strong>and</strong> Bok Sowell, Montana State University, <strong>and</strong> Pr<strong>of</strong>essor Denis<br />

Child, Colorado State University, United States <strong>of</strong> America; <strong>and</strong> Dr Rod<br />

Heitschmidt, ARS, Miles City, Montana, United States <strong>of</strong> America.<br />

The authors <strong>of</strong> Chapter 2 have dedicated <strong>the</strong>ir chapter to Jim Ellis <strong>and</strong><br />

Peter de Leeuw. Both made an important contribution to rangel<strong>and</strong> science<br />

in East Africa <strong>and</strong> are referred to in <strong>the</strong> chapter. Jim was killed in a skiing<br />

accident in 2002 <strong>and</strong> Peter passed away in 2003.<br />

Paulo César de Faccio Carvalho, Faculdade de Agronomia – UFRGS,<br />

Porto Alegre, Brazil helped to locate photographs from Brazil for Chapter 5.<br />

Pablo Borrelli assisted with Spanish translations <strong>of</strong> <strong>the</strong> manuscripts from<br />

which Chapter 5 was prepared <strong>and</strong> <strong>the</strong> authors <strong>of</strong> Chapter 5 acknowledge<br />

<strong>the</strong> assistance <strong>of</strong> Ing. Ag. Oscar Pittaluga, who provided comments on early<br />

drafts. The author <strong>of</strong> Chapter 7 acknowledges <strong>the</strong> inputs <strong>of</strong> B. Erdenebaatar<br />

<strong>and</strong> N. Batjargal. Thanks also to Dr Jonathan Robinson for comments <strong>and</strong><br />

to Petra Staberg for assistance with <strong>the</strong> FAO Grassl<strong>and</strong> Web site, <strong>and</strong> in<br />

particular with <strong>the</strong> finalization <strong>and</strong> layout <strong>of</strong> <strong>the</strong> Country Pasture/Forage<br />

Resource Pr<strong>of</strong>iles. Mary Reynolds assisted with pro<strong>of</strong>reading.<br />

Dr J. Boonman died tragically after preparing <strong>the</strong> draft <strong>of</strong> Chapter 10 with<br />

Pr<strong>of</strong>essor Sergey Mikhalev, but indicated while preparing <strong>the</strong> paper that he<br />

wished to dedicate it to <strong>the</strong> memory <strong>of</strong> Dr David Pratt <strong>and</strong> his early work on<br />

<strong>the</strong> grassl<strong>and</strong>s <strong>of</strong> East Africa.<br />

Thanks are due to <strong>the</strong> authors – M.A. Al-Jaloudy, O. Berkat, M. Tazi, A.<br />

Coulibally, M. Dost, A.R. Fitzherbert, M.F. Garbulsky, V.A. Deregibus, D.<br />

Geesing, H. Djibo, Z. Hu, D. Zhang, H. Kagone, A. Karagöz, C. Kayouli,<br />

M. Makhmudovich, A. Masri, B.K. Misri, D. Nedjraoui, K. Oppong-Anane,<br />

D. Pariyar, J.H Rasambainarivo, N. Ranaivoarivelo, O. Thieme, R.R. Vera<br />

<strong>and</strong> K. Wangdi – <strong>of</strong> a number <strong>of</strong> Country Pasture/Forage Resource Pr<strong>of</strong>iles<br />

on <strong>the</strong> FAO Grassl<strong>and</strong> Web site ,<br />

from which information has been drawn, particularly in <strong>the</strong> preparation <strong>of</strong><br />

Chapter 11.<br />

Photographs, unless o<strong>the</strong>rwise acknowledged, are by <strong>the</strong> authors <strong>of</strong> each<br />

chapter or by <strong>the</strong> editors. Stephen Reynolds selected <strong>and</strong> located photographs<br />

in <strong>the</strong> text. Cathleen J. Wilson generously agreed to three <strong>of</strong> her photographs<br />

being used in Chapter 2 on <strong>the</strong> underst<strong>and</strong>ing that <strong>the</strong>y are not used elsewhere<br />

xv


xvi<br />

or copied without her permission, as did Marzio Marzot in several chapters.<br />

Peter Harris kindly provided a number <strong>of</strong> photographs, as did Dr Jeff<br />

Printz, USDA-NRCS, <strong>and</strong> Alice Carloni <strong>of</strong> TCIP, FAO. Dr Mae Elsinger,<br />

Rangel<strong>and</strong> Biologist, Agriculture <strong>and</strong> Agri-Food Canada (AAFC)-Prairie<br />

Farm Rehabilitation (PFRA) Range <strong>and</strong> Biodiversity Division, Manitoba,<br />

Canada, provided a number <strong>of</strong> photographs by various authors from<br />

AAFC-PFRA files, which are identified with her name in Chapter 6. O<strong>the</strong>r<br />

photographs used were provided by SARDI (South Australian Research<br />

<strong>and</strong> Development Institute), Dr M. Halling, Dr Martín Garbulsky, Dr V.<br />

Alej<strong>and</strong>ro Deregibus, Pr<strong>of</strong>. Alain Peeters <strong>and</strong> Duane McCartney, Lacombe<br />

Research Centre, Agriculture <strong>and</strong> Agri-Food Canada. Mr Constantin Melidis<br />

<strong>and</strong> Elena Palazzani provided assistance with <strong>the</strong> scanning <strong>of</strong> a number <strong>of</strong><br />

photographs. Several <strong>of</strong> <strong>the</strong> grassl<strong>and</strong> maps were prepared by Christopher<br />

Aurich. Lucie Herzigova, FAO, assisted with <strong>the</strong> finalization <strong>of</strong> a number<br />

<strong>of</strong> <strong>the</strong> figures. Cover design was by Studio Bartoleschi, Rome. Cover<br />

photographs are by Daniel Miller, Stephen Reynolds <strong>and</strong> Marzio Marzot.<br />

Final editing for consistency <strong>of</strong> language <strong>and</strong> style, <strong>and</strong> preparation for<br />

publication, was by Thorgeir Lawrence.


CONTRIBUTORS<br />

Ainslie, Andrew M., ARC-Range & Forage Institute, Grahamstown, South<br />

Africa.<br />

Batello, Caterina, Grassl<strong>and</strong> <strong>and</strong> Pasture Crops Group, FAO Crop <strong>and</strong><br />

Grassl<strong>and</strong> Service.<br />

Berretta, Elbio J., Director, Regional INIA Tacuarembó Ruta 5, km 386,<br />

45000 Tacuarembó, Uruguay.<br />

Boonman, Joseph G.† (deceased), Boma Consult, The Hague, Ne<strong>the</strong>rl<strong>and</strong>s.<br />

Borrelli, Pablo R., OVIS XXI, Santa Fe 2843 10°B, 1425-Buenos Aires,<br />

Argentina.<br />

Cibils, Andrés F., Dept. <strong>of</strong> Animal <strong>and</strong> Range Sciences, New Mexico State<br />

University, Las Cruces, NM 88003, United States <strong>of</strong> America.<br />

Hanson, Jean, International Livestock Research Institute, Addis Ababa,<br />

Ethiopia.<br />

McIvor, John G., CSIRO Sustainable Ecosystems, Queensl<strong>and</strong> Bioscience<br />

Precinct, 306 Carmody Road, St Lucia, Qld 4067, Australia.<br />

Maraschin, Gerzy E., Pr<strong>of</strong>essor, Faculdade de Agronomía – UFRGS,<br />

RS – Brazil.<br />

Mikhalyov, Sergey S., Pr<strong>of</strong>essor <strong>of</strong> Grassl<strong>and</strong> Science, Agronomy<br />

Faculty, Moscow Timiryazev Agricultural Academy, Moscow, Russian<br />

Federation.<br />

Miller, Daniel J., United States Agency for International Development,<br />

1300 Pennsylvania Ave. NW, Washington, DC 20523, United States <strong>of</strong><br />

America.<br />

Nyabenge, M., International Livestock Research Institute, Nairobi, Kenya.<br />

Palmer, Anthony R., ARC-Range & Forage Institute, Grahamstown, South<br />

Africa.<br />

Pieper, Rex D., New Mexico State University, Las Cruces, New Mexico.<br />

Reid, Robin S., International Livestock Research Institute, Nairobi, Kenya.<br />

Reynolds, Stephen G., Senior Officer, Grassl<strong>and</strong> <strong>and</strong> Pasture Crops Group,<br />

FAO Crop <strong>and</strong> Grassl<strong>and</strong> Service.<br />

Royo Pallarés, Olegario, Belgrano 841, 3470 Mercedes, Provincia Corrientes,<br />

Argentina.<br />

Serneels, S., International Livestock Research Institute, Nairobi, Kenya.<br />

Suttie, James M., FAO Grassl<strong>and</strong> <strong>and</strong> Pasture Group Staff Member<br />

(retired).<br />

xvii


xviii<br />

Glossary <strong>of</strong> technical terms <strong>and</strong><br />

abbreviations used in <strong>the</strong> text<br />

ABARE Australian Bureau <strong>of</strong> Agricultural <strong>and</strong> Resource<br />

Economics<br />

AFLP amplified fragment length polymorphism<br />

aimag largest Mongolian rural administrative unit, ≈ province,<br />

comprising several sum<br />

airag fermented mares milk, mildly alcoholic<br />

AMBA Argentine Merino Breeder Association<br />

ANPP annual above ground primary productivity<br />

AR accumulation rate<br />

ARC Agricultural Research Council (South Africa)<br />

ARC-RFI Range <strong>and</strong> Forage Institute (South Africa)<br />

ARC-ISCW Institute for Soil Climate <strong>and</strong> Water (South Africa)<br />

ARS Agricultural Research Service (United States <strong>of</strong> America)<br />

AUM animal unit month<br />

AUY animal unit year<br />

AVHRR advanced very high resolution radiometer<br />

bag smallest Mongolian administrative unit below sum,<br />

replacing <strong>the</strong> former soviet-type brigade<br />

badia semi-desert grazing l<strong>and</strong> (Arabic)<br />

bod traditional large livestock unit in Mongolia<br />

brigalow Acacia harpophylla forest <strong>and</strong> woodl<strong>and</strong>s<br />

BSE bovine spongiform encephalopathy (mad cow disease)<br />

CAM Crassulacean acid metabolism<br />

camp paddock (South Africa)<br />

CCD [United Nations] Convention to Combat Desertification<br />

in those Countries Experiencing Serious Drought <strong>and</strong>/or<br />

Desertification, particularly in Africa<br />

CEC cation exchange capacity<br />

CIS Confederation <strong>of</strong> Independent States<br />

CISNR Commission for Integrated Survey <strong>of</strong> National Resources<br />

(China)<br />

CONICET Consejo Nacional de Investigaciones Científicas y<br />

Técnicas (Argentina)<br />

CP crude protein<br />

CRP Conservation Reserve Program (United States <strong>of</strong><br />

America)


CRSP Collaborative Research Support Program (United States<br />

<strong>of</strong> America)<br />

CSIRO Commonwealth Scientific <strong>and</strong> Industrial Research<br />

Organization<br />

CYE comparative yield estimate<br />

DGR daily growth rates<br />

DLWG daily liveweight gain<br />

DSS decision support system<br />

DWR dry weight rank<br />

EEA/EEPRI Ethiopian Economic Association/Ethiopian Economic<br />

Policy Research Institute<br />

ENSO El Niño-Sou<strong>the</strong>rn Oscillation<br />

ephemeroids Russian term denoting perennials whose vegetative parts<br />

die down annually (e.g. Poa bulbosa)<br />

foggage reserved st<strong>and</strong>ing herbage for grazing after <strong>the</strong> growing<br />

season<br />

FO forage <strong>of</strong>fer<br />

FSAU Food Security Analysis Unit (Somalia)<br />

FSU former Soviet Union<br />

garrigue low growing secondary vegetation with aromatic herbs<br />

<strong>and</strong> prickly dwarf shrubs in <strong>the</strong> Mediterranean basin<br />

GEF Global Environment Facility<br />

ger Mongolian herders mobile felt dwelling (Russian yurt)<br />

GIS geographical information system<br />

GLASOD Global Assessment <strong>of</strong> Soil Degradation (global study<br />

published in 1990 by <strong>the</strong> <strong>UNEP</strong> <strong>and</strong> <strong>the</strong> International<br />

Soil Reference <strong>and</strong> Information Centre in cooperation<br />

with <strong>the</strong> Win<strong>and</strong> Staring Centre, <strong>the</strong> International Society<br />

<strong>of</strong> Soil Science, FAO <strong>and</strong> <strong>the</strong> International Institute for<br />

Aerospace Survey <strong>and</strong> Earth Sciences)<br />

GSSA Grassl<strong>and</strong> Society <strong>of</strong> Sou<strong>the</strong>rn Africa<br />

GTZ Deutsche Gesellschaft für Technische Zusammenarbeit<br />

HPG high performance grazing<br />

HUG high utilization grazing<br />

IBP International Biological Program<br />

IEA Instituto Ecologia Applicata, Rome, Italy<br />

IGAD Intergovernmental Authority on Development<br />

IGBP International Geosphere-Biosphere Programme<br />

INIA Instituto Nacional de Investigación Agropecuaria<br />

INTA Instituto Nacional de Tecnología Agropecuaria [National<br />

Institute for Agricultural Technology, Argentina]<br />

IFEVA-UBA Instituto de Investicaciones Fisiológicas y Ecológicas –<br />

Universidad de Buenos Aires (Argentina)<br />

xix


xx<br />

IUCN The <strong>World</strong> Conservation Union<br />

khainag yak × cattle hybrid (Mongolia)<br />

khot ail traditional herding unit <strong>of</strong> households camping <strong>and</strong><br />

working toge<strong>the</strong>r (Mongolia)<br />

Kolkhoz a collective or cooperative farm in <strong>the</strong> soviet system<br />

Kray territory (Russian Federation)<br />

LADA l<strong>and</strong> degradation assessment in dryl<strong>and</strong>s<br />

LAI leaf area index<br />

L<strong>and</strong>sat TM l<strong>and</strong> remote-sensing satellite – <strong>the</strong>matic mapper<br />

LAR leaf appearance rate<br />

LER leaf expansion rate<br />

LEWS Livestock Early Warning System<br />

LFA l<strong>and</strong>scape function analysis<br />

liman flood meadow (Russian Federation)<br />

LLS leaf life span<br />

LSU livestock unit<br />

LTER Long-Term Ecological Research (this is a Network/<br />

Program in <strong>the</strong> United States <strong>of</strong> America)<br />

LWG liveweight gain<br />

malezales marshy, low-lying wetl<strong>and</strong>s – South America<br />

masl metres above sea level<br />

matorral drought-resistant Mediterranean scrub, taller than garrigue<br />

(= French maquis)<br />

MAP mean annual precipitation<br />

negdel Mongolian former cooperative — replaced by sum<br />

NDVI normalized difference vegetation index<br />

NIRS near infra-red spectroscopy<br />

NOAA National Oceanic <strong>and</strong> Atmospheric Administration<br />

(United States <strong>of</strong> America)<br />

nomadism generally used <strong>of</strong> pastoral groups thought to have no fixed<br />

base, but follow entirely erratic rain storms<br />

Oblast region (Russian Federation)<br />

OM organic matter<br />

otor movement <strong>of</strong> livestock to distant pasture to improve<br />

condition<br />

PAGE policy analysis <strong>of</strong> <strong>the</strong> greenhouse effect<br />

PAR photosyn<strong>the</strong>tically active radiation<br />

PAP primary aerial productivity<br />

ppm parts per million<br />

PROLANA El Programa para Mejorar la Calidad de la Lana Argentina<br />

rakhi alcoholic drink distilled from airag<br />

RAPD r<strong>and</strong>om amplified polymorphic DNA


RASHN Russian Academy <strong>of</strong> Agricultural Sciences<br />

RCE regional centre <strong>of</strong> endemism<br />

SAGPyA Secretaría de Agricultura Ganadería, Pesca y Alimentos,<br />

(Argentina)<br />

SETCIP Secretaría de Ciencía, Tecnología e Innovación Productiva<br />

Sovkhozy state-operated agricultural estate in <strong>the</strong> former USSR for<br />

specialized large-scale production<br />

SP secondary production<br />

SPOT Satellite probatoire d’observation de la Terre<br />

(Experimental Earth Observation System)<br />

SPUR2 Simulation <strong>of</strong> Production <strong>and</strong> Utilization <strong>of</strong> Rangel<strong>and</strong>s<br />

(s<strong>of</strong>tware)<br />

sum Mongolian administrative unit, below aimag<br />

transhumance pastoral systems where people with <strong>the</strong>ir animals move<br />

between distinct seasonal pastures, usually at considerable<br />

distance or altitude from each o<strong>the</strong>r<br />

tugrik or togrog Mongolian national currency<br />

UFRGS Universidade Federal do Rio Gr<strong>and</strong>e do Sul [Federal<br />

University <strong>of</strong> Rio Gr<strong>and</strong>e del Sul, Brazil]<br />

<strong>UNEP</strong> United Nations Environment Programme<br />

USGS/EDC United States Geological Survey/EROS Data Center<br />

UVB ultraviolet B<br />

veldt extensive grassl<strong>and</strong>s in South Africa<br />

WWF <strong>World</strong> Wide Fund for Nature<br />

zud climatic disaster that affects livestock – usually deep<br />

frozen snow which denies access to grazing, but may<br />

be lack <strong>of</strong> snow to drink, unusual cold, or drought<br />

(Mongolian)<br />

xxi


Figure 1.1<br />

Extent <strong>of</strong> <strong>the</strong> world’s grassl<strong>and</strong>s.<br />

xxii


S.G. REYNOLDS<br />

Chapter 1<br />

Introduction<br />

<strong>Grassl<strong>and</strong>s</strong> in <strong>the</strong> wider sense are among <strong>the</strong> largest ecosystems in <strong>the</strong> world<br />

(Figure 1.1); <strong>the</strong>ir area is estimated at 52.5 million square kilometres, or<br />

40.5 percent <strong>of</strong> <strong>the</strong> terrestrial area excluding Greenl<strong>and</strong> <strong>and</strong> Antarctica (<strong>World</strong><br />

Resources Institute, 2000, based on IGBP data). In contrast, 13.8 percent <strong>of</strong><br />

<strong>the</strong> global l<strong>and</strong> area (excluding Greenl<strong>and</strong> <strong>and</strong> Antarctica) is woody savannah<br />

<strong>and</strong> savannah; 12.7 percent is open <strong>and</strong> closed shrub; 8.3 percent is non-woody<br />

grassl<strong>and</strong> ; <strong>and</strong> 5.7 percent is tundra.<br />

In its narrow sense, “grassl<strong>and</strong> ” may be defined as ground covered by vegetation<br />

dominated by grasses, with little or no tree cover; UNESCO defines<br />

grassl<strong>and</strong> as “l<strong>and</strong> covered with herbaceous plants with less than 10 percent<br />

tree <strong>and</strong> shrub cover” <strong>and</strong> wooded grassl<strong>and</strong> as 10–40 percent tree <strong>and</strong> shrub<br />

cover (White, 1983). In this study, grassl<strong>and</strong> is used in its wider sense <strong>of</strong> “grazing<br />

l<strong>and</strong> ”. Definitions <strong>of</strong> grassl<strong>and</strong> <strong>and</strong> <strong>the</strong> associated term “range” are multitude,<br />

many with specific local legal connotations; <strong>the</strong> Second Expert Meeting<br />

on Harmonizing Forest -related Definitions for use by Various Stakeholders<br />

(FAO, 2000) gives eleven pages <strong>of</strong> <strong>the</strong>m. The Oxford Dictionary <strong>of</strong> Plant<br />

Sciences (Allaby, 1998) gives a succinct definition :<br />

“Grassl<strong>and</strong> occurs where <strong>the</strong>re is sufficient moisture for grass growth, but where environmental<br />

conditions, both climatic <strong>and</strong> anthropogenic, prevent tree growth. Its occurrence, <strong>the</strong>refore,<br />

correlates with a rainfall intensity between that <strong>of</strong> desert <strong>and</strong> forest <strong>and</strong> is extended by grazing<br />

<strong>and</strong>/or fire to form a plagioclimax in many areas that were previously forested.”<br />

Plate 1.1<br />

<strong>Grassl<strong>and</strong>s</strong> – sheep on spring grazing.<br />

1


2<br />

Plate 1.2<br />

Mosaic <strong>of</strong> cultivated cropl<strong>and</strong> <strong>and</strong> grassl<strong>and</strong>.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

This study has been undertaken by <strong>the</strong> Grassl<strong>and</strong> <strong>and</strong> Pasture Crops Group<br />

<strong>of</strong> FAO <strong>and</strong> grassl<strong>and</strong> is taken to be grazing l<strong>and</strong> . The emphasis is on extensive<br />

grazing l<strong>and</strong>s (Plate 1.1) since <strong>the</strong>se form large, identifiable units. Unsown<br />

grassl<strong>and</strong> that occurs as a mosaic <strong>of</strong> uncultivated patches within farming l<strong>and</strong><br />

(Plate 1.2) is not dealt with here, but it is never<strong>the</strong>less important in smallholder<br />

systems as a source <strong>of</strong> livestock feed; in commercial systems it is more important<br />

as a wildlife habitat <strong>and</strong> a refuge for biodiversity .<br />

No grassl<strong>and</strong> is entirely natural , <strong>and</strong> <strong>the</strong>re are many degrees <strong>of</strong> interference:<br />

fire , whe<strong>the</strong>r spontaneous or lit by man, has influenced, <strong>and</strong> continues<br />

to influence, large areas; <strong>and</strong> grazing by livestock <strong>and</strong>, in some continents, by<br />

large herds <strong>of</strong> wild herbivores. More invasive interventions have been clearing<br />

<strong>of</strong> woody vegetation ei<strong>the</strong>r to give better grazing or originally for cropping;<br />

subdivision with or without fencing ; provision <strong>of</strong> water points to extend <strong>the</strong><br />

grazing area or season; <strong>and</strong> various “improvement ” techniques such as oversowing<br />

with pasture grass <strong>and</strong> legume seeds – with or without surface scarification<br />

<strong>and</strong> fertilizer . In <strong>the</strong> early days <strong>of</strong> FAO, Semple (1956) summarized much<br />

<strong>of</strong> <strong>the</strong> available techniques <strong>and</strong> problems, <strong>and</strong> most are relevant today, although<br />

some technologies have progressed in detail. In general, grassl<strong>and</strong> is said to be<br />

natural if it is not <strong>the</strong> result <strong>of</strong> full ploughing <strong>and</strong> sowing – <strong>the</strong> composition <strong>of</strong><br />

much old sown pasture has, <strong>of</strong> course, little to do with <strong>the</strong> seed mixture used<br />

at its establishment.<br />

The better-watered parts <strong>of</strong> many <strong>of</strong> <strong>the</strong> world’s great grassl<strong>and</strong> zones have<br />

been developed for arable farming, notably in <strong>the</strong> North American Prairie,<br />

<strong>the</strong> South American Pampas , <strong>and</strong> <strong>the</strong> East European Steppe , <strong>and</strong> grazing is<br />

now <strong>of</strong>ten relegated to <strong>the</strong> more marginal l<strong>and</strong>s, unfit for cropping, where<br />

S.G. REYNOLDS


J.M. SUTTIE<br />

Introduction 3<br />

Plate 1.3<br />

Milking at a transit camp on <strong>the</strong> way to summer pastures in Tarialan, Mongolia.<br />

<strong>the</strong> population is <strong>of</strong>ten totally dependent on livestock for its livelihood. In<br />

Africa also <strong>the</strong>re is little extensive grassl<strong>and</strong> uncultivated in regions where <strong>the</strong><br />

rainfall permits <strong>the</strong> production <strong>of</strong> even meagre subsistence crops . The effect <strong>of</strong><br />

developing <strong>the</strong> best l<strong>and</strong> for crops has several negative effects on <strong>the</strong> use <strong>of</strong> <strong>the</strong><br />

remaining l<strong>and</strong> for grazing, including obstructing traditional migration routes<br />

in zones <strong>of</strong> transhumance <strong>and</strong> denying access to water points .<br />

The terms “nomadism” <strong>and</strong> “transhumance ” are sometimes used indiscriminately<br />

when applied to mobile livestock production systems . Transhumance<br />

describes those pastoral systems where people with <strong>the</strong>ir animals moved<br />

between two distinct seasonal pasture areas, usually at considerable distance or<br />

altitude from each o<strong>the</strong>r (Plate 1.3). Nomadism is used for pastoral groups that<br />

have no fixed base, but follow erratic rain storms.<br />

Great grazing l<strong>and</strong>s still exist, however. Among <strong>the</strong> most important are<br />

<strong>the</strong> steppes that stretch from Mongolia (Plate 1.4) <strong>and</strong> nor<strong>the</strong>rn China to<br />

Europe; <strong>the</strong> Tibet -Qinghai Plateau (Plates 1.5 <strong>and</strong> 1.6) <strong>and</strong> <strong>the</strong> adjacent<br />

mountain grazing <strong>of</strong> <strong>the</strong> Himalaya -Hindu Kush (Plate 1.7); <strong>the</strong> North<br />

American prairies; in South America – <strong>the</strong> Pampas , <strong>the</strong> Chaco, Campos<br />

(Plate 1.8), Llanos <strong>and</strong> Cerrados pastures, <strong>the</strong> cold l<strong>and</strong>s <strong>of</strong> Patagonia<br />

(Plate 1.9) <strong>and</strong> <strong>the</strong> Altiplanos; <strong>the</strong> Australian grassl<strong>and</strong>s; in <strong>the</strong> Mediterranean<br />

Region <strong>and</strong> western Asia <strong>the</strong>re are large areas <strong>of</strong> semi -arid grazed l<strong>and</strong>; south<br />

<strong>of</strong> <strong>the</strong> Sahara <strong>the</strong>re are <strong>the</strong> vast Sahelian <strong>and</strong> Sudano-Sahelian zone s, as well<br />

as most <strong>of</strong> <strong>the</strong> eastern part <strong>of</strong> Africa from <strong>the</strong> Horn to <strong>the</strong> Cape.<br />

Two fairly important types <strong>of</strong> grassl<strong>and</strong> are not dealt with. Very large areas<br />

in <strong>the</strong> tropics are covered by Imperata cylindrica , <strong>of</strong>ten in nearly pure st<strong>and</strong>;<br />

this relatively unpalatable, strongly rhizomatous grass is hard to eradicate,


4<br />

Plate 1.4<br />

Horse herd on grassl<strong>and</strong>s near Arkhangai, Mongolia.<br />

Plate 1.5<br />

<strong>Grassl<strong>and</strong>s</strong> on <strong>the</strong> Qinghai Plateau, China.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

burns easily <strong>and</strong> thus makes <strong>the</strong> re-establishment <strong>of</strong> forest cover difficult. It<br />

usually establishes itself when forest has been cleared, <strong>of</strong>ten for crop production.<br />

It occurs throughout <strong>the</strong> tropics; <strong>the</strong> total area has not been established,<br />

but Garrity et al. (1997) estimate that <strong>the</strong> area <strong>of</strong> Imperata is 35 million<br />

hectares in Asia alone. There are also large areas <strong>of</strong> potential grazing in <strong>the</strong><br />

herbage under tree crops (Plate 1.10), mainly in <strong>the</strong> tropics; some is used, but<br />

much is not yet exploited for livestock production; this is dealt with in detail<br />

in ano<strong>the</strong>r FAO publication, Pasture – cattle – coconut systems (Reynolds,<br />

1995).<br />

Extensive grazing is usually <strong>the</strong> exploitation <strong>of</strong> managed natural ecosystems<br />

on which human activities may have had a considerable impact to facilitate or<br />

S.G. REYNOLDS<br />

PETER HARRIS


S.G. REYNOLDS<br />

S.G. REYNOLDS<br />

Introduction 5<br />

Plate 1.6<br />

The high plateau near Lake Namtso, Tibet Autonomous Region, China.<br />

Plate 1.7<br />

Subalpine pastures at Suri Paya, Kaghan Valley, Pakistan.<br />

improve livestock production; it is a l<strong>and</strong> use, not a specific crop, <strong>and</strong> must, for<br />

example, compete with crops , wildlife , forestry <strong>and</strong> recreation. The choice <strong>of</strong><br />

use is not fixed <strong>and</strong> depends on economic factors as well as soil <strong>and</strong> climate. It<br />

is usually on l<strong>and</strong> unsuitable for intensive cultivation because <strong>of</strong> topography,<br />

poor soil or a short growing season – <strong>the</strong> season may be limited by moisture<br />

availability or temperature. Exploitation by <strong>the</strong> grazing animal is, in many<br />

countries, <strong>the</strong> principal practical method <strong>of</strong> exploiting <strong>the</strong> natural vegetation<br />

<strong>of</strong> arid , stony, flooded, montane or remote areas. It follows, <strong>the</strong>refore, that all<br />

discussion <strong>of</strong> grassl<strong>and</strong> must be in <strong>the</strong> context <strong>of</strong> animal production <strong>and</strong> <strong>of</strong> <strong>the</strong><br />

human communities that gain <strong>the</strong>ir livelihood <strong>the</strong>reby (Riveros, 1993).


6<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 1.8<br />

The Campos – winter scene on <strong>the</strong> Basaltic Campos in <strong>the</strong> north <strong>of</strong> Uruguay.<br />

Plate 1.9<br />

Patagonia – sheep being herded on <strong>the</strong> Magellan steppe, near <strong>the</strong> Coyle river.<br />

Sown pasture (Plate 1.11) is important within commercial arable farming<br />

systems , <strong>and</strong>, since it competes with o<strong>the</strong>r crops for l<strong>and</strong> <strong>and</strong> inputs, must be<br />

economically viable compared with o<strong>the</strong>r crops at <strong>the</strong> farm -system level. In<br />

well -watered areas it may replace natural grassl<strong>and</strong> , <strong>of</strong>ten in association with<br />

crop production. Sown pastures are usually most productive in <strong>the</strong>ir early<br />

years <strong>and</strong> yields fall <strong>of</strong>f <strong>the</strong>reafter; to remain productive <strong>the</strong>y require careful<br />

management <strong>and</strong> inputs, with or without periodic resowing; <strong>the</strong>y usually<br />

ELBIO BERRETTA<br />

PABLO BORELLI


S.G. REYNOLDS<br />

S.G. REYNOLDS<br />

Introduction 7<br />

Plate 1.10<br />

Cattle grazing under coconuts.<br />

Plate 1.11<br />

Improved pastures – Brazil.<br />

also need fencing <strong>and</strong> water reticulation. Since grazing requires fairly large,<br />

enclosed areas to be managed effectively, sown pasture is not really suited to<br />

smallholder farms.<br />

Sown fodder, <strong>of</strong>ten irrigated in semi -arid areas, can provide conserved fodder<br />

for winter use, <strong>and</strong> examples are given in <strong>the</strong> chapters on North America,<br />

Patagonia , Russia <strong>and</strong> <strong>the</strong> Campos . Fodder growing is traditional in some<br />

smallholder areas, but, unlike sown pasture , fodder can be used on any size<br />

<strong>of</strong> farm , not only large ones, whe<strong>the</strong>r for use green or conserved; how it has


8<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 1.12<br />

Inner Mongolia – meadow hay prepared by herders for winter feeding.<br />

Plate 1.13<br />

Straw stacked for use as winter feed – Muzaffarabad, Pakistan.<br />

become very important economically in <strong>the</strong> Pakistan Punjab is described by<br />

Dost (2004). Hay from natural meadows has been used by herders (Plate 1.12)<br />

for a very long time, but traditional pastoralists do not usually sow fodder;<br />

Wang (2003) describes an interesting scheme in <strong>the</strong> Altai region <strong>of</strong> Xinjiang<br />

in China , wherein Kazakh herders produce alfalfa (Medicago sativa ) hay for<br />

winter feed on irrigated lowl<strong>and</strong>s while maintaining <strong>the</strong>ir spring to autumn<br />

transhumant migration.<br />

Crop residues , especially straws <strong>and</strong> stovers (Plate 1.13), are very important<br />

as livestock feed in both commercial <strong>and</strong> traditional systems ; in commercial<br />

farming <strong>the</strong>y are usually part <strong>of</strong> <strong>the</strong> roughage ration <strong>and</strong> supplemented with<br />

S.G. REYNOLDS<br />

S.G. REYNOLDS


Introduction 9<br />

o<strong>the</strong>r fodders <strong>and</strong> concentrates; in traditional subsistence systems <strong>the</strong>y may be<br />

<strong>the</strong> main feed when grazing is not available. In <strong>the</strong> irrigated l<strong>and</strong>s <strong>of</strong> sou<strong>the</strong>rn<br />

Asia, crop residues are <strong>of</strong>ten <strong>the</strong> main feed <strong>of</strong> large ruminants year-round.<br />

Residues are not discussed in detail in most <strong>of</strong> <strong>the</strong> studies, but <strong>the</strong>ir conservation<br />

<strong>and</strong> use is described in a recent FAO Grassl<strong>and</strong> Group publication (Suttie,<br />

2000). In some extensive grazing systems with adjacent cropping zones , crop<br />

residues may also figure as lean-season feed. Lean seasons vary: in some areas it<br />

is winter ; in tropical areas it is <strong>the</strong> dry season ; <strong>and</strong> in Mediterranean zones it is<br />

<strong>the</strong> hot, dry summer . It is, <strong>of</strong> course, much more important in agricultural <strong>and</strong><br />

mixed farming areas. Crop residues <strong>and</strong> stubbles are important in West Africa n<br />

transhumance systems <strong>and</strong> <strong>the</strong>re is a complementarity between cropping <strong>and</strong><br />

stock rearing communities : herders move north into <strong>the</strong> desert fringe during <strong>the</strong><br />

rains (<strong>and</strong> <strong>the</strong> season when <strong>the</strong> crops are on <strong>the</strong> ground) <strong>and</strong> move back to <strong>the</strong><br />

agricultural areas after harvest, in <strong>the</strong> dry season; traditionally <strong>the</strong> farmers did<br />

not keep livestock.<br />

Some studies reported here, notably those on <strong>the</strong> Campos , North America<br />

<strong>and</strong> Australia , describe how exotic pasture plants have been introduced to<br />

grassl<strong>and</strong> , <strong>of</strong>ten with fertilizer application <strong>and</strong> varying degrees <strong>of</strong> scarification<br />

<strong>of</strong> <strong>the</strong> surface <strong>and</strong> checks to <strong>the</strong> native vegetation , <strong>and</strong> have become naturalized.<br />

With an increasing interest in maintaining biodiversity <strong>and</strong> protecting<br />

native vegetation, attitudes to introduced “improving” plants may be changing.<br />

A primary quality <strong>of</strong> an improving plant is its ability to spread <strong>and</strong> colonize<br />

natural vegetation; now such qualities may cause a plant to be listed as an<br />

invasive alien.<br />

Grazing systems can be roughly divided into two main types – commercial<br />

<strong>and</strong> traditional, with <strong>the</strong> traditional type <strong>of</strong>ten mainly aimed at subsistence.<br />

Commercial grazing <strong>of</strong> natural pasture is very <strong>of</strong>ten large-scale <strong>and</strong> commonly<br />

involves a single species, usually beef cattle or sheep , which would<br />

mainly be for wool production. Some <strong>of</strong> <strong>the</strong> largest areas <strong>of</strong> extensive commercial<br />

grazing developed in <strong>the</strong> nineteenth century on l<strong>and</strong> which had not<br />

previously been heavily grazed by ruminants; <strong>the</strong>se grazing industries were<br />

mainly developed by immigrant communities in <strong>the</strong> Americas <strong>and</strong> Australasia,<br />

<strong>and</strong> to a much less degree in sou<strong>the</strong>rn <strong>and</strong> eastern Africa .<br />

Traditional livestock production systems are very varied according<br />

to climate <strong>and</strong> <strong>the</strong> overall farming systems <strong>of</strong> <strong>the</strong> area. They also use a<br />

wider range <strong>of</strong> livestock, since buffaloes, asses, goats , yak <strong>and</strong> camels are<br />

predominantly raised in <strong>the</strong> traditional sector. All species are discussed in<br />

<strong>the</strong> various chapters, but buffalo, <strong>of</strong> which <strong>the</strong>re are 170 million worldwide<br />

(FAOSTAT, 2004), are little mentioned since most are kept in agricultural or<br />

agropastoral systems in tropical <strong>and</strong> sub-tropical Asia (only Egypt <strong>and</strong> Brazil<br />

have significant numbers elsewhere), <strong>and</strong> are fed largely on crop residues ,<br />

not on grassl<strong>and</strong>s. In traditional farming systems livestock are <strong>of</strong>ten mainly<br />

kept for subsistence <strong>and</strong> savings, <strong>and</strong> are frequently multi-purpose, providing


10<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 1.14<br />

Mongolia – <strong>the</strong> higher altitude summer pastures <strong>of</strong> Turgen are used to avoid <strong>the</strong><br />

insects in <strong>the</strong> lower Uvs lake basin.<br />

meat , milk , draught, fibres <strong>and</strong> frequently fuel in <strong>the</strong> form <strong>of</strong> dung-cakes. In<br />

many cultures <strong>the</strong> number <strong>of</strong> livestock is associated with social st<strong>and</strong>ing.<br />

Many traditional systems are sedentary, <strong>and</strong> <strong>the</strong>se are usually agropastoral,<br />

combining crop production with livestock that can utilize crop residues <strong>and</strong><br />

by-products <strong>and</strong> make use <strong>of</strong> l<strong>and</strong> unsuitable for crops . Extensive grassl<strong>and</strong> s,<br />

however, are frequently exploited by mobile systems, transhumant or nomadic,<br />

where herds move between grazing areas according to season; some move<br />

according to temperature, o<strong>the</strong>rs follow feed availability. O<strong>the</strong>r factors may<br />

affect migratory movements: in <strong>the</strong> Great Lakes Basins region <strong>of</strong> Mongolia ,<br />

herders have to leave <strong>the</strong> low grazing l<strong>and</strong>s near Uvs lake <strong>and</strong> go to <strong>the</strong> mountains<br />

in June because <strong>of</strong> plagues <strong>of</strong> biting insects (Plate 1.14), returning to <strong>the</strong><br />

lakeside in autumn , but having to move to <strong>the</strong> mountains in winter to avoid <strong>the</strong><br />

very low temperatures <strong>of</strong> <strong>the</strong> basin (Erdenebaatar, 2003). Two areas <strong>of</strong> mobile<br />

herding are described in <strong>the</strong> chapters on Mongolia <strong>and</strong> <strong>the</strong> Tibet Plateau .<br />

Mobile herders <strong>of</strong>ten keep mixed flocks, as this helps reduce herding risk as<br />

well as making a fuller use <strong>of</strong> <strong>the</strong> vegetation on <strong>of</strong>fer – <strong>the</strong> various species may<br />

be herded separately.<br />

Political <strong>and</strong> economic changes over <strong>the</strong> past 150 years have had a marked<br />

effect on <strong>the</strong> distribution, condition <strong>and</strong> use <strong>of</strong> grassl<strong>and</strong>s <strong>and</strong> <strong>the</strong>se are<br />

described in most <strong>of</strong> <strong>the</strong> chapters. Settlement, ranching <strong>and</strong> <strong>the</strong> inroads <strong>of</strong><br />

cropping into former grassl<strong>and</strong> have been mentioned above. Former colonies<br />

have gained <strong>the</strong>ir independence <strong>and</strong> states that had been under absolute rulers<br />

have become democracies; this has <strong>of</strong>ten led to <strong>the</strong> breakdown <strong>of</strong> traditional<br />

authorities <strong>and</strong> grazing rights , raising <strong>the</strong> problems <strong>of</strong> privately owned live-<br />

J.M. SUTTIE


Introduction 11<br />

stock on public l<strong>and</strong>. The great grazing l<strong>and</strong>s <strong>of</strong> Central Asia , China <strong>and</strong> <strong>the</strong><br />

Russian Federation have gone from feudal systems to collective management<br />

<strong>and</strong> <strong>the</strong>n, in <strong>the</strong> past twenty years, to decollectivization <strong>and</strong> privately owned<br />

stock – approaches to management <strong>and</strong> grazing rights have varied from country<br />

to country <strong>and</strong> some are described in <strong>the</strong> chapters on <strong>the</strong> Russian Federation,<br />

Mongolia <strong>and</strong> Tibet Autonomous Region, China .<br />

The herbaceous layer <strong>of</strong> grazing l<strong>and</strong>s is usually, but not always, grasses; several<br />

o<strong>the</strong>r plant types cover large grazed areas. Cyperaceae, especially Kobresia<br />

spp. , dominate many <strong>of</strong> <strong>the</strong> better-watered, hard-grazed yak pastures, especially<br />

those <strong>of</strong> <strong>the</strong> alpine meadow type . Halophytes, notably Chenopodiaceae,<br />

both herbaceous <strong>and</strong> shrubby, are important on alkaline <strong>and</strong> saline soils in<br />

many arid <strong>and</strong> semi -arid grazing l<strong>and</strong>s. In tundra, lichens, especially Cladonia<br />

rangifer, <strong>and</strong> mosses provide reindeer feed. Sub-shrubs are important: various<br />

species <strong>of</strong> Artemisia are important in steppic regions <strong>of</strong> <strong>the</strong> old world from<br />

North Africa to <strong>the</strong> nor<strong>the</strong>rn limit <strong>of</strong> <strong>the</strong> steppe, <strong>and</strong> also occur in North<br />

America. Ericaceous sub-shrubs (species <strong>of</strong> Calluna , Erica <strong>and</strong> Vaccinium ) are<br />

very important grazing for sheep <strong>and</strong> deer on UK moorl<strong>and</strong>.<br />

Browse is frequently mentioned as a significant feed source, <strong>of</strong>ten consumed<br />

in <strong>the</strong> lean season <strong>and</strong> in some cases fruits are also eaten. Tree fodder is especially<br />

important in tropical <strong>and</strong> sub-tropical situations with alternating wet <strong>and</strong><br />

dry season s <strong>and</strong> is discussed in <strong>the</strong> chapters on Africa <strong>and</strong> Australia (where it<br />

may be referred to as “top feed”). Various mixed shrub formations (garrigue,<br />

maquis ) are grazed in <strong>the</strong> Mediterranean zone. Trees <strong>and</strong> shrubs, notably Salix<br />

spp. , are also winter feed in some cold areas.<br />

Extensive grassl<strong>and</strong> s have multiple uses in addition to being a very important<br />

source <strong>of</strong> livestock feed <strong>and</strong> <strong>of</strong> livelihoods for stock raisers <strong>and</strong> herders.<br />

Most grassl<strong>and</strong>s are important catchment areas <strong>and</strong> <strong>the</strong> management <strong>of</strong> <strong>the</strong>ir<br />

vegetation is <strong>of</strong> primordial importance for <strong>the</strong> water resources <strong>of</strong> downstream<br />

l<strong>and</strong>s; mismanagement <strong>of</strong> <strong>the</strong> grazing not only damages <strong>the</strong> pasture , but, since<br />

it increases erosion <strong>and</strong> run-<strong>of</strong>f, can cause serious damage to agricultural l<strong>and</strong><br />

<strong>and</strong> infrastructure lower in <strong>the</strong> catchment <strong>and</strong> cause siltation <strong>of</strong> irrigation systems<br />

<strong>and</strong> reservoirs. The main benefits <strong>of</strong> good catchment management mainly<br />

accrue to communities outside <strong>the</strong> grassl<strong>and</strong>s, but <strong>the</strong> maintenance efforts<br />

have to be made by herders or ranchers. These grassl<strong>and</strong>s are major reserves<br />

<strong>of</strong> biodiversity , providing important wildlife habitat <strong>and</strong> in situ conservation <strong>of</strong><br />

genetic resources. In some regions, grassl<strong>and</strong>s are important for tourism <strong>and</strong><br />

leisure, <strong>and</strong> may have sites <strong>of</strong> religious significance (Plate 1.15); in o<strong>the</strong>r areas,<br />

wild foods, medicines <strong>and</strong> o<strong>the</strong>r useful products are collected (Plate 1.16).<br />

<strong>Grassl<strong>and</strong>s</strong> are a very large carbon sink at world level. Minahi et al. (1993)<br />

state that <strong>the</strong>y are almost as important as forests in <strong>the</strong> recycling <strong>of</strong> greenhouse<br />

gasses <strong>and</strong> that soil organic matter under grassl<strong>and</strong> is <strong>of</strong> <strong>the</strong> same magnitude as<br />

in tree biomass; <strong>the</strong> carbon storage capacity under grassl<strong>and</strong> can be increased by<br />

avoiding tillage.


12<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 1.15<br />

Stupas (Mane in Nepali) at Sailung in Ramechap district, Nepal , at about 3 000 m<br />

altitude, used by Buddhists to <strong>of</strong>fer prayers for peace.<br />

Plate 1.16<br />

Drying herbs at <strong>the</strong> summer camp, Qinghai.<br />

S.G. REYNOLDS<br />

PETER HARRIS


Introduction 13<br />

PURPOSE OF THE BOOK<br />

This book is primarily aimed at agricultural scientists, educationalists,<br />

extensionists <strong>and</strong> decision-makers with interests in <strong>the</strong> grassl<strong>and</strong> <strong>and</strong> l<strong>and</strong>-use<br />

fields . It brings toge<strong>the</strong>r information on <strong>the</strong> characteristics, condition , present<br />

use <strong>and</strong> problems <strong>of</strong> <strong>the</strong> world’s main natural grassl<strong>and</strong>s. Since grassl<strong>and</strong><br />

is commercialized through grazing livestock, particular attention is paid to<br />

<strong>the</strong> livestock production systems associated with each main type . Grazing<br />

resources do not, <strong>of</strong> course, consist solely <strong>of</strong> <strong>the</strong> edible herbage – many o<strong>the</strong>r<br />

factors have to be taken into account, notably water in all areas <strong>and</strong> shelter in<br />

winter -cold climates. Seasonality <strong>of</strong> forage supply is a characteristic <strong>of</strong> almost<br />

all grazing l<strong>and</strong>s so <strong>the</strong> strategies for dealing with lean seasons are described.<br />

The main problems <strong>of</strong> each type are described <strong>and</strong> possible strategies for<br />

<strong>the</strong>ir sustainable management discussed – taking into account <strong>the</strong>ir multiple<br />

functions beyond simply livestock production.<br />

STRUCTURE OF THE BOOK<br />

Nine area or country studies are presented as full chapters.<br />

Chapter 2 covers eastern Africa in its wider sense from Eritrea <strong>and</strong> sou<strong>the</strong>rn<br />

Sudan to Rw<strong>and</strong>a <strong>and</strong> Burundi. These comprise extensive semi -arid to arid<br />

grassl<strong>and</strong>s, savannah, bushl<strong>and</strong>s <strong>and</strong> woodl<strong>and</strong>s, but also include <strong>the</strong> natural<br />

grazing areas <strong>of</strong> <strong>the</strong> extensive highl<strong>and</strong> areas <strong>of</strong> <strong>the</strong> region, which are also pastoral<br />

rangel<strong>and</strong>s. Stock rearing is traditional <strong>and</strong> has been a major l<strong>and</strong> use for a<br />

very long time. The population is very varied; pastoral groups tend to be <strong>of</strong> different<br />

ethnicities from agricultural or agropastoral groups. Most pastoral systems<br />

are in <strong>the</strong> semi-arid areas, with small areas in hyper-arid <strong>and</strong> sub-humid<br />

zones . Access to resources are under national laws, but frequently traditional<br />

l<strong>and</strong> use rights are granted by local communities . National l<strong>and</strong> tenure systems,<br />

introduced after independence, are unrelated to traditional ones. Planted fodder<br />

is becoming important in farming systems as free grazing becomes scarce.<br />

Chapter 3 covers South Africa , which has a range <strong>of</strong> climates from winter<br />

rainfall in <strong>the</strong> extreme south to summer rainfall in <strong>the</strong> lower latitudes. Much is<br />

semi -arid extensive grazing , especially towards <strong>the</strong> west. Grassl<strong>and</strong> is mainly<br />

in <strong>the</strong> central, high regions. Sour-veldt occurs under high-rainfall on acid soils,<br />

<strong>and</strong> sweet -veldt on fertile soils in semi-arid zones . Savannah occurs in <strong>the</strong> north<br />

<strong>and</strong> east, <strong>and</strong> arid savannah extends to <strong>the</strong> Kalahari. Production systems in<br />

communal areas, based on pastoralism <strong>and</strong> agro-pastoralism, are subsistencebased<br />

<strong>and</strong> labour intensive; crop l<strong>and</strong> is allocated to households, grazing areas<br />

are shared by a community. Commercial areas are fenced ranches . Much <strong>of</strong><br />

<strong>the</strong> better-watered grassl<strong>and</strong> has been converted to crops ; in communal areas<br />

this gives a patchwork with thicket. Sown pasture is not <strong>of</strong> major importance,<br />

except on dairy farms .<br />

Chapter 4 covers Patagonia , which is treeless semi -arid grass <strong>and</strong> shrub<br />

steppes that have only been grazed by domestic livestock for a little over a


14<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

century. Temperatures decrease from north to south. Most vegetation has been<br />

seriously modified by sheep , particularly in <strong>the</strong> past 40–50 years, with palatable<br />

grasses being replaced by unpalatable woody plants. European settlement<br />

began at <strong>the</strong> end <strong>of</strong> <strong>the</strong> nineteenth century, with commercial sheep farming.<br />

Sheep farming is almost a monoculture in <strong>the</strong> steppes. Overstocking <strong>and</strong> poor<br />

grazing management have led to serious pastoral degradation , which, coupled<br />

with poor prices for livestock products, has caused serious economic problems<br />

for stock owners.<br />

Chapter 5 deals with <strong>the</strong> Campos , grassl<strong>and</strong> with few trees or shrubs,<br />

which includes parts <strong>of</strong> Brazil , Paraguay <strong>and</strong> Argentina , <strong>and</strong> all <strong>of</strong> Uruguay .<br />

Grassl<strong>and</strong> -based livestock production is very important, exploiting <strong>the</strong> natural<br />

grassl<strong>and</strong> that covers most <strong>of</strong> <strong>the</strong> area. Stock rearing is on large, delimited<br />

holdings <strong>and</strong> is commercial. Poor herbage quality is a major limiting factor to<br />

livestock production, as is usual in moist sub-tropical grassl<strong>and</strong>s. Fattening <strong>of</strong>f<br />

grass can take up to four years. Intensive fattening <strong>of</strong> younger stock uses some<br />

sown pasture . Exotic temperate legumes can be grown <strong>and</strong> may be over-sown<br />

into native swards after l<strong>and</strong> preparation; once established, legumes encourage<br />

<strong>the</strong> development <strong>of</strong> winter grasses.<br />

Chapter 6 deals with <strong>the</strong> grassl<strong>and</strong>s <strong>of</strong> Central North America. At <strong>the</strong> time<br />

<strong>of</strong> settlement from Europe, <strong>the</strong>re was extensive grassl<strong>and</strong> from <strong>the</strong> prairies<br />

<strong>of</strong> Canada to <strong>the</strong> Gulf <strong>of</strong> Mexico, on mainly level topography. Great Plains<br />

grassl<strong>and</strong> is in three b<strong>and</strong>s running north-south: tall-grass ; mixed grass; <strong>and</strong><br />

short-grass with <strong>the</strong> tall-grass in <strong>the</strong> better watered west. About half <strong>of</strong> <strong>the</strong> beef<br />

cattle in <strong>the</strong> United States <strong>of</strong> America (USA ) are in <strong>the</strong> great plains. Woody<br />

vegetation types are embedded, with <strong>the</strong> trees varying according to latitude.<br />

C4 species comprise more than 80 percent from 30° to 42°N, while C3 species<br />

increase dramatically north <strong>of</strong> 42°N. Cattle predominate, sheep are far fewer<br />

<strong>and</strong> declining. Most l<strong>and</strong> is privately owned, much in small farms . In dry areas,<br />

<strong>the</strong>re is extensive ranching. Grazing is seasonal, especially in <strong>the</strong> north, with<br />

supplemental feed in winter . Many small operations are no longer economically<br />

viable so are being ab<strong>and</strong>oned.<br />

Chapter 7 deals with Mongolia , where 80 percent <strong>of</strong> <strong>the</strong> country is extensive<br />

grazing <strong>and</strong> a fur<strong>the</strong>r ten percent is forest or forest scrub, which is also grazed.<br />

Its climate is arid to semi -arid <strong>and</strong> <strong>the</strong> frost-free period <strong>of</strong> most <strong>of</strong> <strong>the</strong> steppe is<br />

one hundred days; transhumant herding on natural pasture is <strong>the</strong> only sustainable<br />

way <strong>of</strong> using such l<strong>and</strong>. Cattle , with yak in <strong>the</strong> higher areas, horses, camels ,<br />

sheep <strong>and</strong> goats are raised; local breeds are used. During <strong>the</strong> past century, management<br />

has changed from traditional transhumance, to collectives that retained<br />

herd mobility from <strong>the</strong> 1950s, to private herding from 1992. Mixed herds are<br />

kept, with herd composition varying according to region. Herding is based on<br />

using different pastures for <strong>the</strong> four seasons <strong>of</strong> <strong>the</strong> year. While livestock are now<br />

privately owned, grazing rights have not yet been allocated; this causes problems<br />

for maintenance <strong>of</strong> pastoral infrastructure <strong>and</strong> respect <strong>of</strong> good grazing practice.


Introduction 15<br />

Chapter 8 deals with <strong>the</strong> Tibetan Steppe , ano<strong>the</strong>r cold , arid zone <strong>of</strong><br />

mobile herding . Its high, cold grazing l<strong>and</strong>s vary from cold deserts to semi -<br />

arid steppe <strong>and</strong> shrubl<strong>and</strong>s, to alpine steppe <strong>and</strong> moist alpine meadows.<br />

Much is above 4 000 m; some camps are as high as 5 100 m. It is traditionally<br />

an area <strong>of</strong> transhumant herding, which has undergone vast changes in<br />

<strong>the</strong> past half century – from feudalism, through a collective period, to privatized<br />

livestock <strong>and</strong> individual grazing rights , which are circumscribing <strong>the</strong><br />

mobility necessary for herding risk avoidance in such a climate. The steppe<br />

contains <strong>the</strong> headwaters <strong>of</strong> many <strong>of</strong> <strong>the</strong> major rivers <strong>of</strong> Asia <strong>and</strong> has a very<br />

rich flora <strong>and</strong> fauna with many endemic species, so grazing management is<br />

not only important for herders’ livelihoods but also for catchment maintenance<br />

<strong>and</strong> in situ preservation <strong>of</strong> genetic resources <strong>and</strong> biodiversity .<br />

Chapter 9 deals with Australia ’s grassl<strong>and</strong>s. Australia has a latitudinal<br />

range <strong>of</strong> 11°S to 44°S, which, coupled with annual precipitation from<br />

100 mm to 4 000 mm, generates a wide range <strong>of</strong> grassl<strong>and</strong> environments.<br />

Native herbage remains <strong>the</strong> base <strong>of</strong> a significant portion <strong>of</strong> <strong>the</strong> grazing<br />

industry. Most farms rely on animal products from grassl<strong>and</strong>s, <strong>and</strong> most<br />

grassl<strong>and</strong>s products are exported. Arid <strong>and</strong> semi -arid tropical areas are<br />

used for extensive cattle grazing; water from artesian wells <strong>and</strong> bores is<br />

necessary. Pasture growth is very seasonal <strong>and</strong> stock lose weight in <strong>the</strong> dry<br />

season . In <strong>the</strong> intermediate rainfall zones , crops are combined with sheep<br />

rearing; ley farming systems , where a legume-based pasture phase <strong>of</strong> two<br />

to five years is alternated with crops for one to three years, were widely<br />

adopted in sou<strong>the</strong>rn areas. Sown pasture technology is well developed in <strong>the</strong><br />

temperate zone, based on <strong>the</strong> use <strong>of</strong> selected, exotic species, with emphasis<br />

on legumes. Development <strong>of</strong> sown pastures was slower in <strong>the</strong> tropical areas<br />

<strong>and</strong> suffered a setback when disease affected Stylosan<strong>the</strong>s st<strong>and</strong>s.<br />

Chapter 10 deals with <strong>the</strong> Russian steppe, which is described with a<br />

view to its rehabilitation as a natural resource. The vast plains formerly<br />

provided a formidable grazing resource , due more to <strong>the</strong>ir extent than to<br />

<strong>the</strong>ir productivity . In <strong>the</strong> 1950s, <strong>the</strong> lion’s share <strong>of</strong> <strong>the</strong> virgin steppe was<br />

ploughed not just for cereal but, ironically as it turned out, largely for<br />

fodder production. Large-scale stall-feeding operations based on maize<br />

silage <strong>and</strong> cereals were typical, but proved unsustainable , <strong>and</strong> livestock<br />

numbers have dwindled to less than half in <strong>the</strong> past decade. In <strong>the</strong><br />

current transition to family-based livestock farming, however informal<br />

as yet, direct grazing has regained terrain. Fortunately, <strong>the</strong> succession<br />

from fallow l<strong>and</strong> to “typical” steppe vegetation is quite rapid <strong>and</strong> passes<br />

through seral stages dominated by Agropyron spp. , which provide a<br />

more powerful herbage resource than <strong>the</strong> climax Stipa spp. <strong>and</strong> Festuca<br />

sulcata steppe. Ecological monitoring <strong>of</strong> <strong>the</strong> steppe as a natural resource<br />

is paramount in order to assist in rehabilitating <strong>the</strong> fallow grassl<strong>and</strong>s to<br />

<strong>the</strong> preferred botanical composition .


The above coverage leaves some obvious gaps, but it is not possible in a<br />

book <strong>of</strong> normal size to cover all grassl<strong>and</strong>s in similar detail. Chapter 11 gives<br />

summarized information on many <strong>of</strong> <strong>the</strong> large grazing areas not covered in<br />

<strong>the</strong> nine studies, with sections on: (i) Africa – North Africa ; West Africa ; <strong>and</strong><br />

Madagascar ; (ii) Latin America – <strong>the</strong> Llanos ; <strong>and</strong> <strong>the</strong> Gran Chaco ; (iii) Western<br />

Asia – Turkey ; Iran; <strong>the</strong> Syrian Arab Republic ; <strong>and</strong> Jordan ; (iii) Central Asia<br />

– Uzbekistan; <strong>and</strong> Kyrgyzstan ; (iv) The Himalaya -Hindu Kush zone; <strong>and</strong><br />

(v) China o<strong>the</strong>r than <strong>the</strong> Tibet -Qinghai Plateau. Much <strong>of</strong> <strong>the</strong> information for<br />

<strong>the</strong> minor studies comes from <strong>the</strong> FAO “Country Pasture Pr<strong>of</strong>iles”, studies<br />

that provide information on <strong>the</strong> pasture <strong>and</strong> forage resources <strong>of</strong> countries, <strong>and</strong><br />

usually drafted by national scientists. They are available on <strong>the</strong> FAO Web site,<br />

as described in Chapter 11. Much information for temperate Asia is available<br />

in <strong>the</strong> FAO Grassl<strong>and</strong> Group publication Transhumant Grazing Systems in<br />

Temperate Asia (Suttie <strong>and</strong> Reynolds, 2003).<br />

A final chapter discusses grassl<strong>and</strong> perspectives.<br />

COMPLEMENTARY INFORMATION RESOURCES<br />

Four recent FAO Grassl<strong>and</strong> Group publications deal with extensive grassl<strong>and</strong>s:<br />

Grassl<strong>and</strong> Resource Assessment (Harris, 2001); Managing Mobility in<br />

African Rangel<strong>and</strong>s (in conjunction with IT Publications <strong>and</strong> Beijer Institute<br />

<strong>of</strong> Agricultural Economics) (Niamir-Fuller, 1999); <strong>Grassl<strong>and</strong>s</strong>: Developments<br />

Opportunities Perspectives (Reynolds <strong>and</strong> Frame, 2005); <strong>and</strong> Transhumant<br />

Grazing Systems in Temperate Asia (Suttie <strong>and</strong> Reynolds, 2003). The FAO<br />

Grassl<strong>and</strong> Web site contains a series <strong>of</strong> Country Pasture Pr<strong>of</strong>iles that give country-by-country<br />

descriptions <strong>of</strong> grassl<strong>and</strong> -based production systems . To date,<br />

80 countries have been described – see: http://www.fao.org/ag/AGP/AGPC/<br />

doc/pasture /forage.htm. These pr<strong>of</strong>iles provide <strong>the</strong> basis for Chapter 11 <strong>and</strong><br />

are described <strong>the</strong>rein. The interrelation <strong>of</strong> grassl<strong>and</strong>, crops , livestock <strong>and</strong> o<strong>the</strong>r<br />

grassl<strong>and</strong> resources is analysed in The Future is an Ancient Lake. Traditional<br />

knowledge, biodiversity <strong>and</strong> genetic resources for food <strong>and</strong> agriculture in Lake<br />

Chad Basin ecosystems (Batello, Marzot <strong>and</strong> Touré, 2004).<br />

Sown pasture <strong>and</strong> fodder <strong>and</strong> <strong>the</strong>ir conservation are discussed in a number <strong>of</strong><br />

FAO publications, including: Hay <strong>and</strong> Straw Conservation (Suttie, 2000), which also<br />

deals with fodder cultivation ; Silage making in <strong>the</strong> tropics with particular emphasis<br />

on smallholders (t’Mannetje, 2000); Wild <strong>and</strong> Sown Grasses (Peeters, 2004); Site-<br />

Specific Grasses <strong>and</strong> Herbs. Seed production <strong>and</strong> use for restoration <strong>of</strong> mountain<br />

environments (Krautzer, Peratoner <strong>and</strong> Bozzo, 2004); Forage Legumes for Temperate<br />

<strong>Grassl<strong>and</strong>s</strong> (Frame, 2005); Fodder Oats: a <strong>World</strong> Overview (Suttie <strong>and</strong> Reynolds,<br />

2004). Tropical forages are dealt with in Tropical Grasses (Skerman <strong>and</strong> Riveros, 1989)<br />

<strong>and</strong> Tropical Forage Legumes (Skerman, Cameron <strong>and</strong> Riveros, 1988).<br />

The FAO-AGP Grassl<strong>and</strong> Index gives descriptions <strong>of</strong> <strong>and</strong> agronomic information<br />

on a wide range <strong>of</strong> forages – see .


Introduction 17<br />

REFERENCES<br />

Allaby, M. 1998. Oxford Dictionary <strong>of</strong> Plant Sciences. Oxford, UK: Oxford<br />

University Press.<br />

Batello, C., Marzot, M. & Touré, A.H. 2004. The Future is an Ancient Lake.<br />

Traditional knowledge, biodiversity <strong>and</strong> genetic resources for food <strong>and</strong> agriculture<br />

in Lake Chad Basin ecosystems . Rome, Italy: FAO. 309 p.<br />

Dost, M. 2004. Fodder Oats in Pakistan . pp. 71–91, in: J.M. Suttie <strong>and</strong> S.G.<br />

Reynolds (eds). Fodder oats, a world overview. FAO Plant Production <strong>and</strong><br />

Protection Series, No. 33.<br />

Erdenebaatar, B. 2003. Studies on long-distance transhumant grazing systems in<br />

Uvs <strong>and</strong> Khuvsgul aimags <strong>of</strong> Mongolia , 1999–2000. pp. 31–68, in: J.M. Suttie <strong>and</strong><br />

S.G. Reynolds (eds). Transhumant grazing systems in temperate Asia. FAO Plant<br />

Production <strong>and</strong> Protection Series, No. 31.<br />

FAO. 2000. Second expert meeting on harmonizing forest -related definitions for<br />

use by various stakeholders. See: http://www.fao.org/DOCREP/005/Y4171E/<br />

Y4171E37.htm<br />

FAOSTAT. 2004. Agriculture data. Agricultural production – Live animals. Data downloaded<br />

from http://faostat.fao.org<br />

Frame, J. 2005. Forage Legumes for Temperate <strong>Grassl<strong>and</strong>s</strong>. Rome, Italy, <strong>and</strong><br />

Enfield, USA : FAO, <strong>and</strong> Science Publishers Inc. 309 p.<br />

Garrity, D.P., Soekardi, M., van Noordwijk, M., de la Cruz, R., Pathak, P.S.,<br />

Gunasena, H.P.M., Van So, N., Huijun, G. & Majid, N.M. 1997. The Imperata<br />

grassl<strong>and</strong> <strong>of</strong> tropical Asia: Area, distribution <strong>and</strong> typology. pp. 3–29, in: D.P. Garrity<br />

(ed). Agr<strong>of</strong>orestry innovations to rehabilitate Imperata grassl<strong>and</strong>s. Agr<strong>of</strong>orestry<br />

Systems (Special Issue), 36(1–3).<br />

Harris, P.S. 2001. Grassl<strong>and</strong> resource assessment for pastoral systems . FAO Plant<br />

Production <strong>and</strong> Protection Paper, No. 162. 150 p.<br />

Krautzer, B., Peratoner, G. & Bozzo, F. 2004. Site-Specific Grasses <strong>and</strong> herbs.<br />

Seed production <strong>and</strong> use for restoration <strong>of</strong> mountain environments. FAO Plant<br />

Production <strong>and</strong> Protection Series, No. 32. 111 p.<br />

Minahi, K., Goudriaan, J., Lantinga, E.A. & Kimura, T. 1993. Significance <strong>of</strong><br />

grassl<strong>and</strong>s in emission <strong>and</strong> absorption <strong>of</strong> greenhouse grasses. In: M.J. Barker<br />

(ed). <strong>Grassl<strong>and</strong>s</strong> for Our <strong>World</strong>. Wellington, New Zeal<strong>and</strong>: SIR Publishing.<br />

Niamir-Fuller, M. (ed). 1999. Managing mobility in African Rangel<strong>and</strong>s. The<br />

legitimization <strong>of</strong> transhumance . London: Intermediate Technology Publications,<br />

for FAO <strong>and</strong> Beijer International Institute <strong>of</strong> Ecological Economics.<br />

Peeters, A. 2004. Wild <strong>and</strong> Sown Grasses. Pr<strong>of</strong>iles <strong>of</strong> a temperate species selection:<br />

ecology, biodiversity <strong>and</strong> use. London: Blackwell Publishing, for FAO. 311 p.<br />

Reynolds, S.G. 1995. Pasture -cattle -coconut systems . FAO-RAPA Publication,<br />

Bangkok. 668 p.<br />

Reynolds, S.G. & Frame, J. 2005. <strong>Grassl<strong>and</strong>s</strong>: Developments Opportunities<br />

Perspectives. Rome, Italy, <strong>and</strong> Enfield, USA : FAO, <strong>and</strong> Science Publishers Inc.<br />

565 p.


18<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Riveros, F. 1993. <strong>Grassl<strong>and</strong>s</strong> for our world. In: M.J. Barker (ed). <strong>Grassl<strong>and</strong>s</strong> for<br />

Our <strong>World</strong>. Wellington, New Zeal<strong>and</strong>: SIR Publishing.<br />

Semple, A.T. 1956. Improving <strong>the</strong> <strong>World</strong>’s <strong>Grassl<strong>and</strong>s</strong>. FAO Agricultural Studies,<br />

No. 16.<br />

Skerman, P.J. & Riveros, F. 1989/90. Tropical grasses. FAO Plant Production <strong>and</strong><br />

Protection Series, No. 23.<br />

Skerman, P.J., Cameron, D.G. & Riveros, F. 1988. Tropical forage legumes. (2nd edition,<br />

revised <strong>and</strong> exp<strong>and</strong>ed). FAO Plant Production <strong>and</strong> Protection Series, No. 2.<br />

692 p.<br />

Suttie J.M. 2000. Hay <strong>and</strong> straw conservation for small-scale <strong>and</strong> pastoral conditions.<br />

FAO Plant Production <strong>and</strong> Protection Series, No. 29. 303 p. Available online – see<br />

http://www.fao.org/documents/show_cdr.asp?url_file=/docrep/005/X7660E/<br />

X7660E00.htm<br />

Suttie J.M. & Reynolds, S.G. 2004. Fodder Oats: a <strong>World</strong> Overview. FAO Plant<br />

Production <strong>and</strong> Protection Series, No. 33. 251 p.<br />

Suttie J.M. & Reynolds, S.G. 2003. Transhumant grazing systems in temperate<br />

Asia. FAO Plant Production <strong>and</strong> Protection Series, No. 31. 331 pp.<br />

t’Mannetje, L. (ed). 2000. Silage making in <strong>the</strong> tropics with particular emphasis on<br />

smallholders. FAO Plant Production <strong>and</strong> Protection Paper, No. 161. 180 p.<br />

Wang, W.L. 2003. Studies on traditional transhumance <strong>and</strong> a system where herders<br />

return to settled winter bases in Burjin county, Altai Prefecture, Xinjiang , China .<br />

pp. 115–141, in: J.M. Suttie <strong>and</strong> S.G. Reynolds (eds). Transhumant grazing systems<br />

in temperate Asia. FAO Plant Production <strong>and</strong> Protection Series, No. 31.<br />

White, F. 1983. The Vegetation <strong>of</strong> Africa; a descriptive memoir to accompany <strong>the</strong><br />

Unesco/AETFAT/UNSO vegetation map <strong>of</strong> Africa. Natural Resources Research<br />

Series, XX. Paris, France: UNESCO. 356 p.<br />

<strong>World</strong> Resources Institute - PAGE. 2000. Downloaded from http://earthtrends.<br />

wri.org/text/forests-grassl<strong>and</strong>s-dryl<strong>and</strong>s/map-229.htm


Chapter 2<br />

The changing face <strong>of</strong> pastoral systems in grass -<br />

dominated ecosystems <strong>of</strong> eastern Africa<br />

R.S. Reid, S. Serneels, M. Nyabenge <strong>and</strong> J. Hanson<br />

SUMMARY<br />

All eastern Africa is in <strong>the</strong> tropics, but its grassl<strong>and</strong>s cover a very wide range <strong>of</strong><br />

altitudes. Extensive grassl<strong>and</strong> s are mostly in arid <strong>and</strong> semi -arid zones . The area<br />

is subject to droughts <strong>and</strong> a high degree <strong>of</strong> pastoral risk . Potential vegetation is<br />

largely desert <strong>and</strong> semi-desert , bush <strong>and</strong> woodl<strong>and</strong>, with only a small area <strong>of</strong><br />

pure grassl<strong>and</strong> , but <strong>the</strong> grass -dominated herbaceous layer <strong>of</strong> <strong>the</strong> o<strong>the</strong>r formations<br />

is very important for wildlife <strong>and</strong> livestock; 75 percent <strong>of</strong> eastern Africa is<br />

dominated by grassl<strong>and</strong>s, <strong>of</strong>ten with a varying amount <strong>of</strong> woody vegetation. The<br />

grassl<strong>and</strong>s have been grazed by livestock <strong>and</strong> game for millennia. Eastern Africa<br />

is a centre <strong>of</strong> genetic diversity for grasses. Six to eleven main grassl<strong>and</strong> zones<br />

have been described. <strong>Grassl<strong>and</strong>s</strong> are ei<strong>the</strong>r under government control , are open<br />

access or are common property resources . Access to resources are under national<br />

laws but frequently traditional l<strong>and</strong> use rights are granted by local communities .<br />

National l<strong>and</strong> tenure systems are unrelated to traditional ones. Governments supported<br />

cropping <strong>and</strong> reduction <strong>of</strong> communal grazing l<strong>and</strong> ; contraction <strong>of</strong> pastoral<br />

systems reduces <strong>the</strong> scale <strong>of</strong> resource use by pastoral peoples. The population is<br />

very varied – pastoral groups tend to be <strong>of</strong> different ethnicities from agricultural or<br />

agropastoral groups. Most pastoral systems are in <strong>the</strong> semi-arid areas, with small<br />

areas in hyper-arid <strong>and</strong> subhumid zones. Traditionally, livestock <strong>and</strong> <strong>the</strong>ir products<br />

were for subsistence <strong>and</strong> wealth, but now many are marketed. <strong>Grassl<strong>and</strong>s</strong> are<br />

increasingly being integrated into farming as pastoral systems evolve. Sown forages<br />

are widely used in agricultural areas. Cattle , like people, are mostly in <strong>the</strong> non-pastoral<br />

areas (70 percent), except in countries with little high-potential l<strong>and</strong>. Cattle,<br />

camels , sheep , goats <strong>and</strong> donkeys are <strong>the</strong> main livestock kept by <strong>the</strong> pastoralists for<br />

subsistence; most herds are mixed . Indigenous breeds are <strong>the</strong> majority, although<br />

exotic cattle are kept for dairying in high altitude zones. Wildlife are widespread in<br />

<strong>the</strong> grazing l<strong>and</strong>s <strong>and</strong> are important for tourism . Agricultural development along<br />

watercourses limits access by wildlife <strong>and</strong> pastoral stock.<br />

SCOPE<br />

This chapter focuses on <strong>the</strong> grazing l<strong>and</strong>s or rangel<strong>and</strong>s <strong>of</strong> Burundi, Eritrea ,<br />

Ethiopia, Kenya, Rw<strong>and</strong>a, Somalia , <strong>the</strong> Sudan, <strong>the</strong> United Republic <strong>of</strong><br />

Tanzania (Tanzania) <strong>and</strong> Ug<strong>and</strong>a (Figure 2.1). These comprise extensive semi -<br />

19


20<br />

Libyan Arab<br />

Jamahiriya<br />

Chad<br />

Central African<br />

Republic<br />

Democratic Republic<br />

<strong>of</strong> <strong>the</strong> Congo<br />

Angola<br />

Egypt<br />

Zambia Mozambique<br />

Figure 2.1<br />

Countries in eastern Africa as defined for this chapter.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

arid to arid grassl<strong>and</strong>s, savannah, bushl<strong>and</strong>s <strong>and</strong> woodl<strong>and</strong>s, <strong>and</strong> also cover <strong>the</strong><br />

natural grazing areas <strong>of</strong> <strong>the</strong> extensive highl<strong>and</strong> areas <strong>of</strong> <strong>the</strong> region. These are<br />

also <strong>the</strong> pastoral rangel<strong>and</strong>s that Holechek, Pieper <strong>and</strong> Herbel (1989) defined as<br />

“uncultivated l<strong>and</strong> that will support grazing or browsing animals”.<br />

Pastoral management systems in eastern Africa have developed over<br />

<strong>the</strong> last three to four thous<strong>and</strong> years by <strong>the</strong> indigenous groups <strong>of</strong> pastoral<br />

Key<br />

Lakes<br />

Bounding countries<br />

International boundaries<br />

Rivers<br />

Capital cities


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 21<br />

peoples living in <strong>the</strong> region, whose livelihoods depend on livestock. These<br />

traditional <strong>and</strong> <strong>of</strong>ten sustainable ways are now being threatened by agricultural<br />

development , <strong>the</strong> need to produce more food from marginal l<strong>and</strong>s, population<br />

growth <strong>and</strong> global climate change. Fluctuations in rainfall <strong>and</strong> drought are<br />

recurring problems in <strong>the</strong> rangel<strong>and</strong>s <strong>of</strong> <strong>the</strong> region <strong>and</strong> 70 million people in<br />

<strong>the</strong> Horn <strong>of</strong> Africa, many <strong>of</strong> whom are pastoralists, suffer from long-term<br />

chronic food insecurity (FAO, 2000). Poverty levels are high, with more than<br />

half <strong>of</strong> <strong>the</strong> people in <strong>the</strong> region surviving on less than US$ 1 per day (Thornton<br />

et al., 2002). The population <strong>of</strong> <strong>the</strong> region has doubled since 1974, <strong>and</strong> it is<br />

predicted to increase ano<strong>the</strong>r 40 percent by 2015 (FAO, 2000). Against this<br />

background, <strong>the</strong> traditional ways <strong>of</strong> pastoralists continue to change, <strong>and</strong> many<br />

are settling (or are settled) <strong>and</strong> diversifying <strong>the</strong>ir income-generating activities<br />

into crop production, wage labour <strong>and</strong> o<strong>the</strong>r activities, while o<strong>the</strong>r family<br />

members continue to herd <strong>the</strong> family stock <strong>and</strong> move to follow <strong>the</strong> availability<br />

<strong>of</strong> forage.<br />

This chapter examines <strong>the</strong> changes in pastoral rangel<strong>and</strong> systems in eastern<br />

Africa over recent years <strong>and</strong> estimates future changes in <strong>the</strong> rangel<strong>and</strong>s <strong>of</strong> <strong>the</strong><br />

region due to global climate change, human population growth <strong>and</strong> market<br />

opportunities.<br />

Mapping rangel<strong>and</strong>s, livestock <strong>and</strong> pastoral peoples<br />

The productive potential <strong>of</strong> <strong>the</strong> eastern Africa n region varies enormously from<br />

place to place, as shown by <strong>the</strong> differences in <strong>the</strong> growing season across <strong>the</strong><br />

region (Figure 2.2; Fischer, Velthuizen <strong>and</strong> Nachtergaele, 2000). On this map,<br />

areas coloured brown <strong>and</strong> yellow have less than 60 growing days 1 <strong>and</strong> thus<br />

rarely support crops (= arid , according to White, 1998); areas adequate for shortseason<br />

crops with 60–120 growing days are shown in light green (= semi -arid );<br />

areas with 121–180 days, shaded in medium green, can support longer-season<br />

crops (= dry subhumid); <strong>and</strong> areas with >180 growing days are in dark green,<br />

<strong>and</strong> have few production constraints (= wet subhumid). Over <strong>the</strong> region, about<br />

37 percent <strong>of</strong> <strong>the</strong> l<strong>and</strong> surface (or 2.3×10 6 km 2 ) is only agriculturally suitable for<br />

grazing by wildlife <strong>and</strong> livestock (= arid <strong>and</strong> semi-arid areas), while <strong>the</strong> o<strong>the</strong>r<br />

63 percent (3.9×10 6 km 2 ) is additionally suitable for crop cultivation , forestry<br />

<strong>and</strong> o<strong>the</strong>r types <strong>of</strong> l<strong>and</strong> use. Of <strong>the</strong>se arid <strong>and</strong> semi-arid areas principally suitable<br />

for grazing, about 1.6×10 6 km 2 (or about 70 percent <strong>of</strong> <strong>the</strong> grazing l<strong>and</strong> ) is arid<br />

<strong>and</strong> completely unsuitable for crop production (zero growing days) <strong>and</strong> thus is<br />

probably only available for grazing during <strong>the</strong> rare high rainfall years or during a<br />

1 Growing days are defined as “<strong>the</strong> period (in days) during <strong>the</strong> year when precipitation (P)<br />

exceeds half <strong>the</strong> potential evapotranspiration (PET) plus a period required to evapotranspire<br />

up to 100 mm <strong>of</strong> water from excess precipitation assumed stored in <strong>the</strong> soil pr<strong>of</strong>ile” (FAO,<br />

1978). The mean daily temperature during <strong>the</strong> growing period has to exceed 5°C (Fischer,<br />

Velthuizen <strong>and</strong> Nachtergaele, 2000).


22<br />

Libyan Arab<br />

Jamahiriya<br />

Chad<br />

Central<br />

African Republic<br />

Democratic Republic<br />

<strong>of</strong> <strong>the</strong> Congo<br />

Angola<br />

Zambia<br />

Egypt<br />

Tanzania<br />

Mozambique<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Key<br />

Number <strong>of</strong> days<br />

0<br />

1 - 60<br />

60 - 120<br />

120 - 180<br />

> 180<br />

Missing data<br />

Lakes<br />

Bounding countries<br />

International boundaries<br />

Rivers<br />

Capital cities<br />

Figure 2.2<br />

Length <strong>of</strong> growing period (days) with sufficient soils <strong>and</strong> water to grow crops . Reclassified<br />

from Fischer, Velthuizen <strong>and</strong> Nachtergaele, 2000.<br />

few weeks or months in normal or low rainfall years. Significant dryl<strong>and</strong>s cover<br />

nor<strong>the</strong>rn Sudan, eastern Ethiopia, much <strong>of</strong> Eritrea <strong>and</strong> Somalia <strong>and</strong> nor<strong>the</strong>rn<br />

Kenya, while most <strong>of</strong> Tanzania , Rw<strong>and</strong>a, Burundi <strong>and</strong> Ug<strong>and</strong>a are relatively<br />

wet. These four high-rainfall countries <strong>and</strong> sou<strong>the</strong>rn Kenya, <strong>the</strong> highl<strong>and</strong>s <strong>of</strong>


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 23<br />

Libyan Arab<br />

Jamahiriya<br />

Chad<br />

Central<br />

African Republic<br />

Democratic Republic<br />

<strong>of</strong> <strong>the</strong> Congo<br />

Angola<br />

Zambia<br />

Egypt<br />

Mozambique<br />

Figure 2.3<br />

Potential vegetation in eastern Africa . Re-classified from White, 1983.<br />

Ethiopia <strong>and</strong> sou<strong>the</strong>rn Sudan have <strong>the</strong> highest potential for intensive croplivestock<br />

production. Much <strong>of</strong> this is now already under cropl<strong>and</strong>, with <strong>the</strong><br />

exception <strong>of</strong> sou<strong>the</strong>rn Sudan (for cropl<strong>and</strong>, see Figure 2.7).<br />

The potential vegetation <strong>of</strong> eastern Africa is largely desert <strong>and</strong> semi -<br />

desert (26 percent <strong>of</strong> <strong>the</strong> l<strong>and</strong> surface), bushl<strong>and</strong> (33 percent) <strong>and</strong> woodl<strong>and</strong><br />

Key<br />

Afro-montane<br />

Mangrove <strong>and</strong> halophytic vegetation<br />

Bushl<strong>and</strong>, thicket <strong>and</strong> mosaics<br />

Desert<br />

Forest <strong>and</strong> forest transitions<br />

Grassl<strong>and</strong> <strong>and</strong> grassl<strong>and</strong> mosaics<br />

Semi-desert vegetation<br />

Woodl<strong>and</strong> <strong>and</strong> woodl<strong>and</strong> transitions<br />

Lakes<br />

Bounding countries<br />

International boundaries<br />

Rivers<br />

Capital cities


24<br />

Libyan Arab<br />

Jamahiriya<br />

Chad<br />

Central<br />

African Republic<br />

Democratic Republic<br />

<strong>of</strong> <strong>the</strong> Congo<br />

Angola<br />

Zambia<br />

Egypt<br />

Mozambique<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Key<br />

No. <strong>of</strong> species/km 2<br />

0<br />

1 - 10<br />

11 - 30<br />

31 - 50<br />

51 - 70<br />

71 -n 83<br />

Lakes<br />

Bounding countries<br />

International boundaries<br />

Rivers<br />

Capital cities<br />

Figure 2.4<br />

Density <strong>of</strong> large mammal species in eastern Africa , based on data from IEA, 1998.<br />

(21 percent) (from Figure 2.3; White, 1983). Only 12 percent <strong>of</strong> <strong>the</strong> region is<br />

naturally forested, <strong>and</strong> even less is pure grassl<strong>and</strong> (7 percent). Afromontane<br />

vegetation, much <strong>of</strong> it potential grazing l<strong>and</strong> , is rare (0.5 percent) <strong>and</strong> mostly<br />

restricted to Ethiopia, with very small amounts on volcanic mountains in Kenya,<br />

Ug<strong>and</strong>a, Rw<strong>and</strong>a <strong>and</strong> Tanzania . Although pure grassl<strong>and</strong> is found only in central


J.M. SUTTIE<br />

The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 25<br />

Plate 2.1<br />

Predator harvesting game. Cheetah among Harpachne schimperi – Athi plains,<br />

Kenya.<br />

<strong>and</strong> south-eastern Sudan, nor<strong>the</strong>rn <strong>and</strong> western Tanzania <strong>and</strong> northwest Kenya,<br />

<strong>the</strong> herbaceous layer <strong>of</strong> semi-deserts, bushl<strong>and</strong>s <strong>and</strong> woodl<strong>and</strong>s are dominated<br />

by grasses, so <strong>the</strong>y are included here as part <strong>of</strong> <strong>the</strong> “grass -dominated areas”<br />

<strong>of</strong> eastern Africa because <strong>of</strong> <strong>the</strong>ir importance for livestock <strong>and</strong> wildlife . This<br />

means that 75 percent <strong>of</strong> eastern Africa is dominated by ei<strong>the</strong>r pure grassl<strong>and</strong>s<br />

or grassl<strong>and</strong>s with varying amounts <strong>of</strong> woody vegetation within or above <strong>the</strong><br />

grass layer. Significant woodl<strong>and</strong>s exist only in sou<strong>the</strong>rn Sudan, Tanzania <strong>and</strong><br />

Eritrea , <strong>and</strong> in nor<strong>the</strong>rn Ug<strong>and</strong>a <strong>and</strong> western Ethiopia.<br />

Eastern Africa is renowned for <strong>the</strong> diversity <strong>and</strong> number <strong>of</strong> its large grazing<br />

<strong>and</strong> browsing wildlife (Plates 2.1, 2.2 <strong>and</strong> 2.3). A map <strong>of</strong> <strong>the</strong> density (number<br />

per km 2 ) <strong>of</strong> species <strong>of</strong> medium <strong>and</strong> large mammals in eastern Africa was developed<br />

by a simultaneous overlay <strong>of</strong> 281 individual species distribution maps (see<br />

Figure 2.4, developed by Reid et al. (1998) based on analysis <strong>of</strong> databases from<br />

IEA (1998)). The highest diversity <strong>of</strong> medium to large mammal species is found<br />

in two large, contiguous patches: one in <strong>the</strong> Rift Valley <strong>of</strong> south-central Kenya<br />

<strong>and</strong> central Tanzania , <strong>and</strong> <strong>the</strong> o<strong>the</strong>r in <strong>and</strong> east <strong>of</strong> <strong>the</strong> Ruwenzori Mountains<br />

in southwestern Ug<strong>and</strong>a <strong>and</strong> nor<strong>the</strong>rn Rw<strong>and</strong>a. This is <strong>the</strong> richest diversity <strong>of</strong><br />

mammals <strong>of</strong> this size in all <strong>of</strong> Africa (Reid et al., 1998) <strong>and</strong> probably <strong>the</strong> world.<br />

Most <strong>of</strong> Burundi, Kenya, Rw<strong>and</strong>a, Tanzania <strong>and</strong> Ug<strong>and</strong>a support diverse<br />

groups <strong>of</strong> large mammals, with fewer in most <strong>of</strong> Djibouti, Eritrea , Ethiopia <strong>and</strong><br />

Somalia . This map does not account for <strong>the</strong> rarity or endemism <strong>of</strong> large mammals,<br />

which can be distributed quite differently from overall diversity.


26<br />

Plate 2.2<br />

Large non-ruminant herbivores – zebra herd – Athi plains, Kenya.<br />

Plate 2.3<br />

Gerenuk - dry area browsers – Tsavo East, Kenya.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

As expected, most <strong>of</strong> <strong>the</strong> people in eastern Africa live in <strong>the</strong> wetter <strong>and</strong><br />

highl<strong>and</strong> areas (Figure 2.5; Deichmann, 1996; Thornton et al., 2002). High<br />

population levels are found in <strong>the</strong> Ethiopian highl<strong>and</strong>s, <strong>the</strong> Lake Victoria<br />

Basin <strong>and</strong> <strong>the</strong> sou<strong>the</strong>rn Tanzanian highl<strong>and</strong>s. Significant clusters <strong>of</strong> people<br />

J.M. SUTTIE<br />

J.M. SUTTIE


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 27<br />

Libyan Arab<br />

Jamahiriya<br />

Chad<br />

Central<br />

African Republic<br />

Democratic Republic<br />

<strong>of</strong> <strong>the</strong> Congo<br />

Angola<br />

Zambia<br />

Egypt<br />

Mozambique<br />

Key<br />

No. <strong>of</strong> people/km 2<br />

< 1<br />

1 - 10<br />

11 - 20<br />

21 - 50<br />

61 - 100<br />

> 100<br />

Lakes<br />

Bounding countries<br />

International boundaries<br />

Rivers<br />

Capital cities<br />

Figure 2.5<br />

Human population density in eastern Africa in 2001. From Deichmann, 1996; Thornton et al.,<br />

2002.<br />

live in areas marginally suitable for cultivation in Eritrea around Asmara, in<br />

central Sudan <strong>and</strong> along <strong>the</strong> coasts <strong>of</strong> Kenya, Tanzania <strong>and</strong> Somalia . The only<br />

places where many people live in dryl<strong>and</strong>s are along <strong>the</strong> Nile in nor<strong>the</strong>rn<br />

Sudan, around Mogadishu in Somalia <strong>and</strong> in western Somalil<strong>and</strong> <strong>of</strong> nor<strong>the</strong>rn<br />

Somalia. Few people live in most <strong>of</strong> <strong>the</strong> dryl<strong>and</strong>s <strong>of</strong> eastern Africa <strong>and</strong> in <strong>the</strong>


28<br />

Libyan Arab<br />

Jamahiriya<br />

Chad<br />

Central<br />

African Republic<br />

Democratic Republic<br />

<strong>of</strong> <strong>the</strong> Congo<br />

Angola<br />

Zambia<br />

Egypt<br />

Mozambique<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Key<br />

No. <strong>of</strong> cattle/km 2<br />

< 1<br />

1 - 5<br />

6 - 20<br />

21 - 50<br />

51 - 100<br />

101 - 300<br />

Missing data<br />

Lakes<br />

Bounding countries<br />

International boundaries<br />

Rivers<br />

Capital cities<br />

Figure 2.6<br />

Cattle population densities in eastern Africa in <strong>the</strong> late 1990s, from Kruska, 2002.<br />

wetter areas <strong>of</strong> <strong>the</strong> Sudd in sou<strong>the</strong>rn Sudan, in <strong>the</strong> tsetse belts <strong>of</strong> Tanzania <strong>and</strong><br />

in protected areas.<br />

Cattle are largely distributed in a pattern similar to <strong>the</strong> human population<br />

distribution in eastern Africa (Figure 2.6; Kruska, 2002), with high concentrations<br />

around Lake Victoria <strong>and</strong> in <strong>the</strong> Ethiopian highl<strong>and</strong>s. Few cattle are found in<br />

<strong>the</strong> driest areas <strong>of</strong> nor<strong>the</strong>rn Sudan, eastern <strong>and</strong> nor<strong>the</strong>rn Ethiopia, Eritrea <strong>and</strong>


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 29<br />

nor<strong>the</strong>astern Somalia . There are also few cattle in wet, sou<strong>the</strong>rn Sudan (<strong>the</strong><br />

Sudd) <strong>and</strong> nor<strong>the</strong>rn Ug<strong>and</strong>a, <strong>and</strong> in <strong>the</strong> subhumid, miombo woodl<strong>and</strong> regions<br />

<strong>of</strong> sou<strong>the</strong>rn Tanzania . Most <strong>of</strong> <strong>the</strong> cattle are in non-pastoral areas across <strong>the</strong><br />

region: 70 percent are in cropl<strong>and</strong> <strong>and</strong> urban areas, while 30 percent are in<br />

pastoral l<strong>and</strong>s. These proportions vary strongly from country to country,<br />

partly because <strong>of</strong> differences in amounts <strong>of</strong> high-potential l<strong>and</strong>. For example,<br />

about 35 percent <strong>of</strong> Kenya is high potential <strong>and</strong> 80 percent <strong>of</strong> <strong>the</strong> nation’s cattle<br />

herd resides <strong>the</strong>re. In contrast, <strong>the</strong>re is very little high-potential l<strong>and</strong> in Somalia<br />

<strong>and</strong> Djibouti <strong>and</strong> thus all <strong>the</strong> cattle live in dryl<strong>and</strong>s in those countries.<br />

A previous global analysis <strong>of</strong> pastoral systems (from Reid et al., 2003)<br />

has been used to estimate <strong>the</strong> extent <strong>of</strong> grass -dominated pastoral systems in<br />

eastern Africa . This pastoral systems map (Figure 2.7) was created using four<br />

Geographical Information System (GIS ) data layers: l<strong>and</strong> cover (USGS/EDC,<br />

1999; Lovel<strong>and</strong> et al., 2000), length <strong>of</strong> growing period (Fischer, Velthuizen<br />

<strong>and</strong> Nachtergaele, 2000), rainfall (IWMI, 2001; Jones <strong>and</strong> Thornton, 2003) <strong>and</strong><br />

human population density for Africa (Deichmann, 1996).<br />

Initially, l<strong>and</strong> cover, length <strong>of</strong> growing period <strong>and</strong> human population maps<br />

were used to establish <strong>the</strong> location <strong>of</strong> all cultivatable l<strong>and</strong> (>60 growing days), all<br />

l<strong>and</strong> cover currently under crops in <strong>the</strong> USGS coverage (dryl<strong>and</strong> cropl<strong>and</strong> <strong>and</strong><br />

pasture ; irrigated cropl<strong>and</strong> <strong>and</strong> pasture; mixed dryl<strong>and</strong> <strong>and</strong> irrigated cropl<strong>and</strong><br />

<strong>and</strong> pasture; cropl<strong>and</strong> <strong>and</strong> grassl<strong>and</strong> mosaic; <strong>and</strong> cropl<strong>and</strong> <strong>and</strong> woodl<strong>and</strong><br />

mosaic) <strong>and</strong> any o<strong>the</strong>r areas with sufficient human population (>20 people/<br />

km 2 ) to exclude extensive rangel<strong>and</strong> use (for details, see Reid et al., 2000a;<br />

Thornton et al., 2002). This classification thus joined all but <strong>the</strong> most extensive<br />

agropastoral systems with cropl<strong>and</strong>, <strong>and</strong> maps about 9 percent more cropl<strong>and</strong><br />

than is in <strong>the</strong> USGS database. “Urban” included all areas with more than<br />

450 people/km 2 . The remaining areas (not cultivatable, low human population<br />

density) were discriminated into pastoral system classes by mean annual rainfall<br />

as follows: areas receiving less than 50 mm <strong>of</strong> rainfall were classified as hyperarid<br />

; areas with 51–300 mm were arid; <strong>and</strong> areas with 301–600 mm were semi -<br />

arid . Highl<strong>and</strong> areas were those with temperatures <strong>of</strong> more than 5°C but less<br />

than 20°C during <strong>the</strong> growing season, or less than 20°C for one month a year.<br />

Most <strong>of</strong> eastern Africa ’s pastoral systems are semi -arid (34 percent), with<br />

much smaller areas <strong>of</strong> arid (12 percent), hyper-arid (8 percent), humid to subhumid<br />

(9 percent), <strong>and</strong> temperate <strong>and</strong> highl<strong>and</strong> (1 percent) pastoral systems<br />

(Figure 2.7). Cropl<strong>and</strong> <strong>and</strong> urban areas cover 27 percent <strong>of</strong> <strong>the</strong> region. Only<br />

Sudan has <strong>the</strong> driest (hyper-arid) pastoral systems, while eastern Eritrea ,<br />

nor<strong>the</strong>rn Ethiopia, Djibouti, Somalia <strong>and</strong> nor<strong>the</strong>rn Kenya support extensive<br />

arid pastoral systems. The most common l<strong>and</strong> cover type in Kenya, Somalia,<br />

Ethiopia <strong>and</strong> Sudan is semi-arid rangel<strong>and</strong>. Tanzania , Ug<strong>and</strong>a <strong>and</strong> Sudan have<br />

<strong>the</strong> most extensive wet pastoral systems.<br />

By comparing potential vegetation (Figure 2.3) <strong>and</strong> pastoral <strong>and</strong> cropl<strong>and</strong><br />

systems (Figure 2.7), we can see what types <strong>of</strong> vegetation farmers have pre-


30<br />

Libyan Arab<br />

Jamahiriya<br />

Chad<br />

Central<br />

African Republic<br />

Democratic Republic<br />

<strong>of</strong> <strong>the</strong> Congo<br />

Angola<br />

Zambia<br />

Egypt<br />

Mozambique<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Figure 2.7<br />

Pastoral system areas <strong>and</strong> cropl<strong>and</strong> <strong>and</strong> urban areas <strong>of</strong> eastern Africa in 2001, based on<br />

Thornton et al. (2002) <strong>and</strong> Reid et al. (2003).<br />

ferred to use for cropl<strong>and</strong>. On average, 27 percent <strong>of</strong> <strong>the</strong> region is cropped,<br />

but this is disproportionately found in afro montane vegetation (74 percent<br />

converted to cropl<strong>and</strong>), forest (62 percent converted), woodl<strong>and</strong> (34 percent<br />

converted) <strong>and</strong> bushl<strong>and</strong> (31 percent converted). Farmers have ploughed lesser<br />

Key<br />

Hyper-arid pastoral<br />

Arid pastoral<br />

Semi-arid pastoral<br />

Humid/subhumid pastoral<br />

Temperate/highl<strong>and</strong> pastoral<br />

Cropl<strong>and</strong> or urban<br />

O<strong>the</strong>r (mostly forests)<br />

Lakes<br />

Bounding countries<br />

International boundaries<br />

Rivers<br />

Capital cities


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 31<br />

areas <strong>of</strong> pure grassl<strong>and</strong> (23 percent converted), semi -deserts (3 percent) <strong>and</strong><br />

deserts (1 percent). These l<strong>and</strong> use choices have pushed pastoral use from <strong>the</strong><br />

wetter to <strong>the</strong> drier areas in eastern Africa over time.<br />

PLANT COMMUNITIES IN GRASSLANDS AND RANGELANDS<br />

The grassl<strong>and</strong>s <strong>of</strong> eastern Africa are very diverse, with a range <strong>of</strong> dominant<br />

species dependent on rainfall , soil type <strong>and</strong> management or grazing system .<br />

Eastern Africa is renowned as a centre <strong>of</strong> genetic diversity <strong>of</strong> tropical grasses<br />

<strong>and</strong> <strong>the</strong> centre <strong>of</strong> greatest diversity <strong>of</strong> cultivated grass species (Boonman, 1993).<br />

Over 90 percent <strong>of</strong> <strong>the</strong> major cultivated forage grasses have <strong>the</strong>ir centre <strong>of</strong><br />

origin in sub-Saharan Africa <strong>and</strong> are indigenous to <strong>the</strong> extensive grassl<strong>and</strong>s <strong>of</strong><br />

eastern Africa. There are an estimated 1 000 species <strong>of</strong> grass indigenous to <strong>the</strong><br />

region, with more than 600 species found in Kenya alone (Boonman, 1993). The<br />

wide distribution <strong>and</strong> adaptability <strong>of</strong> many <strong>of</strong> <strong>the</strong>se species across a range <strong>of</strong><br />

environments <strong>and</strong> management systems indicates <strong>the</strong> presence <strong>of</strong> considerable<br />

genetic diversity within <strong>the</strong> region. This diversity has been exploited to select<br />

superior ecotypes for use in many o<strong>the</strong>r parts <strong>of</strong> <strong>the</strong> world. Brachiaria species,<br />

originating from eastern Africa, are <strong>the</strong> most widely planted forage grass,<br />

with estimates <strong>of</strong> areas under Brachiaria pastures in Brazil ranging from 30 to<br />

70 million hectares in 1996 (Fisher <strong>and</strong> Kerridge, 1996).<br />

To aid description <strong>and</strong> study <strong>of</strong> <strong>the</strong> rangel<strong>and</strong>, many attempts have been made<br />

to classify <strong>the</strong> vegetation into types that cover large areas <strong>of</strong> <strong>the</strong> region. Rattray<br />

(1960) identified 12 types <strong>of</strong> grassl<strong>and</strong> in eastern Africa , based on <strong>the</strong> genera <strong>of</strong><br />

<strong>the</strong> dominant grass in <strong>the</strong> grassl<strong>and</strong>. These include Aristida , Chloris , Cenchrus ,<br />

Chrysopogon , Exo<strong>the</strong>ca , Hyparrhenia , Heteropogon , Loudetia , Pennisetum ,<br />

Panicum , Setaria <strong>and</strong> Themeda . Pratt <strong>and</strong> Gwynne (1977) described six ecoclimatic<br />

zones based on climate, vegetation <strong>and</strong> l<strong>and</strong> use. These are described<br />

as <strong>the</strong> afro-alpine area <strong>of</strong> upl<strong>and</strong> grassl<strong>and</strong>s; <strong>the</strong> equatorial humid to dry subhumid<br />

area <strong>of</strong> forests <strong>and</strong> bushl<strong>and</strong>s (Plates 2.4 <strong>and</strong> 2.5); <strong>the</strong> dry subhumid to<br />

semi -arid area <strong>of</strong> savannah, shrub <strong>and</strong> woodl<strong>and</strong>; <strong>the</strong> semi-arid areas <strong>of</strong> dry<br />

woodl<strong>and</strong> <strong>and</strong> savannah (such as <strong>the</strong> Acacia -Themeda association); <strong>the</strong> arid<br />

area <strong>of</strong> Commiphora , Acacia, Cenchrus ciliaris <strong>and</strong> Chloris roxburghiana ; <strong>and</strong><br />

<strong>the</strong> very arid area <strong>of</strong> dwarf shrub grassl<strong>and</strong> <strong>of</strong> Chrysopogon. A more recent<br />

classification , based primarily on <strong>the</strong> dominant grass, is described as vegetation<br />

type or region by Herlocker (1999). He described eleven vegetation regions<br />

in eastern Africa as Pennisetum mid-grass ; Pennisetum giant grass; Panicum-<br />

Hyparrhenia tall-grass ; Hyparrhenia tall-grass; Hyparrhenia-Hyper<strong>the</strong>lia tallgrass;<br />

Themeda mid-grass; Chrysopogon mid-grass; Leptothrium mid-grass;<br />

Cenchrus-Schoenefeldia annual mid-grass; Panicum-annual; Aristida mid- <strong>and</strong><br />

short-grass region; <strong>and</strong> Aristida short-grass region.<br />

Themeda tri<strong>and</strong>ra (Plate 2.6) is one <strong>of</strong> <strong>the</strong> most widespread grass species in<br />

sub-Saharan Africa but it is only <strong>the</strong> dominant grassl<strong>and</strong> type in central <strong>and</strong><br />

nor<strong>the</strong>rn Tanzania . The species is very variable <strong>and</strong> shows wide adaptation to


32<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 2.4<br />

Acacia bushl<strong>and</strong>s cover much <strong>of</strong> <strong>the</strong> rich volcanic soils <strong>of</strong> eastern Africa.<br />

Plate 2.5<br />

Farmers use many <strong>of</strong> <strong>the</strong> trees in bushl<strong>and</strong>s <strong>and</strong> woodl<strong>and</strong>s to manufacture<br />

charcoal for market.<br />

R.S. REID<br />

R.S. REID


C.J. WILSON<br />

The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 33<br />

Plate 2.6<br />

Maasai sheep grazing in a Themeda grassl<strong>and</strong>, southwestern Kenya.<br />

growth in both <strong>the</strong> highl<strong>and</strong> regions <strong>and</strong> <strong>the</strong> lowl<strong>and</strong> savannahs. Themeda,<br />

Bothriochloa , Digitaria <strong>and</strong> Heteropogon mixtures are common in <strong>the</strong> open<br />

dry savannah areas <strong>of</strong> Tanzania, such as <strong>the</strong> Serengeti plains. Short tufted<br />

ecotypes <strong>of</strong> Themeda tri<strong>and</strong>ra are found at high altitudes <strong>and</strong> taller more<br />

woody types are found in <strong>the</strong> open lowl<strong>and</strong> savannahs (Rattray, 1960). These<br />

vary in palatability, but all types quickly lose palatability with age. Themeda<br />

tri<strong>and</strong>ra can tolerate light to moderate grazing , <strong>and</strong> productivity can reach<br />

400 kg/ha/day in <strong>the</strong> wet season in <strong>the</strong> Serengeti plains, making <strong>the</strong>m among<br />

<strong>the</strong> most productive grassl<strong>and</strong>s in <strong>the</strong> world (Herlocker, 1999). Plant biomass,<br />

quality <strong>and</strong> species numbers decline in <strong>the</strong> absence <strong>of</strong> grazing, are at a peak<br />

under moderate to high grazing (McNaughton, 1976, 1979, 1984) <strong>and</strong> can<br />

decline under very high grazing. In <strong>the</strong> Mara region in Kenya, to <strong>the</strong> north,<br />

which is a continuation <strong>of</strong> <strong>the</strong> grassl<strong>and</strong> ecosystem <strong>of</strong> <strong>the</strong> Serengeti Plains,<br />

Themeda makes up about 50 percent <strong>of</strong> <strong>the</strong> grass cover in lightly to moderately<br />

grazed sites, dropping to 1–5 percent cover near settlements where Maasai<br />

corral <strong>the</strong>ir livestock each night (Vuorio, Muchiru <strong>and</strong> Reid, in prep.).<br />

The dominant grass species in <strong>the</strong> dryl<strong>and</strong>s <strong>of</strong> eastern Africa include Aristida ,<br />

Cenchrus , Chrysopogon <strong>and</strong> Heteropogon . These are <strong>of</strong>ten found growing as<br />

an association, <strong>the</strong> dominant species determined by <strong>the</strong> environment <strong>and</strong><br />

soil type . Aristida grassl<strong>and</strong> is widely distributed in <strong>the</strong> dry pastoral areas <strong>of</strong><br />

Kenya, Ethiopia <strong>and</strong> <strong>the</strong> Sudan. Although many species are tough <strong>and</strong> have


34<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

low palatability, <strong>the</strong>y have wide adaptability to a broad range <strong>of</strong> environments.<br />

Cenchrus grassl<strong>and</strong> is <strong>of</strong>ten found associated with Aristida, or in Somalia<br />

with Leptothrium (Herlocker, 1999), <strong>and</strong> has higher palatability <strong>and</strong> better<br />

adaptation to hot dry areas with high evapotranspiration. Cenchrus is one <strong>of</strong><br />

<strong>the</strong> few grass genera that has been characterized for agronomic attributes. Over<br />

300 ecotypes, mostly collected from Tanzania <strong>and</strong> Kenya, were characterized<br />

for 12 agronomic attributes (Pengelly, Hacker <strong>and</strong> Eagles, 1992). The ecotypes<br />

showed wide variability in <strong>the</strong>ir agronomic traits <strong>and</strong> were clustered into six<br />

groups (Pengelly, Hacker <strong>and</strong> Eagles, 1992). The annual C. biflorus , which<br />

is adapted to dryl<strong>and</strong> areas, is also found in eastern Africa associated with<br />

Schoenefeldia sp. <strong>and</strong> is typical <strong>of</strong> one dry area south <strong>of</strong> <strong>the</strong> Sahara in western<br />

Eritrea (Herlocker, 1999).<br />

Chrysopogon plumulosus is <strong>the</strong> most widespread species found in <strong>the</strong> semi -<br />

desert grassl<strong>and</strong>s <strong>and</strong> bushl<strong>and</strong>s <strong>of</strong> <strong>the</strong> Horn <strong>of</strong> Africa (Herlocker, 1999) <strong>and</strong> is<br />

avidly grazed, especially in Somalia <strong>and</strong> Sudan, where it is burnt to stimulate<br />

regrowth for grazing . Chrysopogon is very sensitive to grazing. Overgrazing<br />

results in elimination <strong>of</strong> <strong>the</strong> species <strong>and</strong> a change in species composition to<br />

annuals such as Aristida spp. (Herlocker, 1999). This harsh management<br />

regime in low rainfall areas has resulted in reduced st<strong>and</strong>s <strong>of</strong> this grassl<strong>and</strong><br />

in recent years (IBPGR, 1984). Herlocker (1999) recognized three zones in<br />

<strong>the</strong> Chrysopogon region according to <strong>the</strong> associated woody vegetation . These<br />

include Commiphora -Acacia bushl<strong>and</strong> <strong>and</strong> Acacia etbaica open woodl<strong>and</strong>,<br />

which occur across <strong>the</strong> region, <strong>and</strong> <strong>the</strong> Acacia bussei open woodl<strong>and</strong> in Somalia<br />

<strong>and</strong> Ethiopia. He also recognized two subregions: <strong>the</strong> Cenchrus -Chloris subregion<br />

in <strong>the</strong> wetter areas <strong>and</strong> <strong>the</strong> Sporobolus subregion in <strong>the</strong> drier areas. Rattray<br />

(1960) recognized <strong>the</strong> Chloris areas as a vegetation type in its own right, <strong>and</strong><br />

included <strong>the</strong> Sporobolus as an associated grass in a Chrysopogon vegetation type<br />

in very dry semi-desert areas <strong>of</strong> Somalia <strong>and</strong> Ethiopia.<br />

Although not a vegetation type recognized by Herlocker (1999), Heteropogon<br />

grassl<strong>and</strong> is found in open woodl<strong>and</strong> or grassl<strong>and</strong> in <strong>the</strong> semi -arid <strong>and</strong> arid<br />

rangel<strong>and</strong>s in Somalia (Box, 1968), Kenya <strong>and</strong> Ethiopia. It is represented<br />

mostly by H. contortus , which is commonly called spear grass due to its awns<br />

<strong>and</strong> needle-sharp tips on <strong>the</strong> grass florets. It is a persistent species, which is<br />

indigenous to <strong>the</strong> region, spreads rapidly through seed <strong>and</strong> grows in lowl<strong>and</strong><br />

or middle altitudes with poor, stony, well drained soils. It is commonly found<br />

with annual species <strong>of</strong> Aristida <strong>and</strong> Digitaria (Rattray, 1960). The species does<br />

not have good palatability <strong>and</strong> is only useful when young.<br />

Chloris roxburghiana is a dominant species in dryl<strong>and</strong> areas <strong>of</strong> Kenya,<br />

Ethiopia, Tanzania , Somalia <strong>and</strong> Ug<strong>and</strong>a, <strong>and</strong> is usually found growing in<br />

association with Chrysopogon aucheri <strong>and</strong> Cenchrus ciliaris in Commiphora<br />

<strong>and</strong> Acacia woodl<strong>and</strong> (Rattray, 1960). Despite its wide distribution, Herlocker<br />

(1999) treats this vegetation type as a subtype <strong>of</strong> <strong>the</strong> Chrysopogon mid-grass<br />

region. Chloris roxburghiana is widespread throughout <strong>the</strong> entire region <strong>and</strong>


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 35<br />

is an important species for livestock <strong>and</strong> wildlife . This species contributes up<br />

to 50 percent <strong>of</strong> <strong>the</strong> diet <strong>of</strong> wild herbivores in eastern Kenya (IBPGR, 1984)<br />

but is in danger <strong>of</strong> disappearing due to overgrazing <strong>and</strong> l<strong>and</strong> degradation 2 . The<br />

species is very variable. A recent study using r<strong>and</strong>om amplified polymorphic<br />

DNA (RAPD) markers to study diversity among four populations from ecologically<br />

distinct sites in eastern Kenya showed significant variation among <strong>the</strong><br />

populations (W.N. Mnene, KARI, Nairobi, pers. comm.).<br />

Chloris gayana is an important native species <strong>and</strong> a component <strong>of</strong> <strong>the</strong><br />

Hyparrhenia type <strong>of</strong> grassl<strong>and</strong> (Rattray, 1960) in open steppe <strong>and</strong> wooded<br />

grassl<strong>and</strong> vegetation or flooded valleys in <strong>the</strong> higher rainfall areas <strong>of</strong> Kenya,<br />

Ethiopia, Tanzania , Somalia <strong>and</strong> Ug<strong>and</strong>a. Herlocker (1999) considers this vegetation<br />

type part <strong>of</strong> <strong>the</strong> Hyparrhenia-Hyper<strong>the</strong>lia tall-grass region <strong>of</strong> miombo<br />

woodl<strong>and</strong>. The miombo woodl<strong>and</strong> is an important vegetation type covering<br />

<strong>the</strong> sou<strong>the</strong>rn two thirds <strong>of</strong> Tanzania. Chloris gayana, or Rhodes grass , is not<br />

an important grass ecologically in <strong>the</strong> vegetation <strong>of</strong> <strong>the</strong> region, but is important<br />

commercially as a forage grass. It shows wide adaptability with high palatability,<br />

<strong>and</strong> is a fast-growing, persistent, frost- <strong>and</strong> drought -tolerant species valued<br />

for grazing (Skerman <strong>and</strong> Riveros, 1990). Commercial cultivars <strong>of</strong> Rhodes<br />

grass have been developed from genotypes collected in Kenya <strong>and</strong> grown in<br />

<strong>the</strong> region since <strong>the</strong> 1930s (Boonman, 1997). An analysis <strong>of</strong> genetic diversity<br />

in Chloris gayana using amplified fragment length polymorphisms (AFLPs)<br />

revealed considerable variation between <strong>the</strong> diploid <strong>and</strong> tetraploid cultivars,<br />

with genetic similarity ranging between 66 <strong>and</strong> 89 percent in <strong>the</strong> diploids <strong>and</strong><br />

63 <strong>and</strong> 87 percent in <strong>the</strong> tetraploids (Ubi, Komatsu <strong>and</strong> Fujimori, 2000).<br />

Hyparrhenia is one <strong>of</strong> <strong>the</strong> most widespread grassl<strong>and</strong> types in eastern<br />

Africa , <strong>and</strong> this grassl<strong>and</strong> region, which is characterized by woodl<strong>and</strong>s <strong>and</strong><br />

wooded grassl<strong>and</strong>s dominated by H. rufa , covers parts <strong>of</strong> Ug<strong>and</strong>a, Kenya<br />

<strong>and</strong> Ethiopia (Herlocker, 1999). Several o<strong>the</strong>r species <strong>of</strong> Hyparrhenia are<br />

found in <strong>the</strong> region, <strong>of</strong> which <strong>the</strong> most important are H. hirta , H. dipl<strong>and</strong>ra<br />

<strong>and</strong> H. filipendula . These tough perennial grasses are usually found growing<br />

in combination with o<strong>the</strong>r grasses in woodl<strong>and</strong> or open grassl<strong>and</strong>, from <strong>the</strong><br />

lowl<strong>and</strong> to mid-altitude areas. They are fast growing, <strong>and</strong> grazed while young,<br />

but become tough <strong>and</strong> unpalatable as <strong>the</strong>y mature <strong>and</strong> lose nutritive value<br />

(Skerman <strong>and</strong> Riveros, 1990). Crude protein levels <strong>of</strong> H. dissoluta in Kenya can<br />

decrease from over 14 percent to less than 3 percent after flowering (Dougall,<br />

1960). After flowering, <strong>the</strong>se grasses are much valued <strong>and</strong> used as thatching for<br />

traditional rural housing, <strong>and</strong> mature grasses have commercial value, being sold<br />

as st<strong>and</strong>ing grass to be cut for ro<strong>of</strong>ing in some rural areas. This <strong>and</strong> burning<br />

ensure young regrowth with higher value for grazing in many areas. Grazing<br />

2 In this chapter, we consider degraded l<strong>and</strong> to be l<strong>and</strong> that due to natural processes or human<br />

activity is no longer able to sustain an economic function or <strong>the</strong> original ecological function,<br />

or both (GLASOD, 1990).


36<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

is important to encourage growth <strong>of</strong> o<strong>the</strong>r more palatable <strong>and</strong> valuable forage<br />

grasses, such as Cynodon dactylon , Panicum maximum <strong>and</strong> Setaria sphacelata<br />

(Herlocker, 1999).<br />

Loudetia species are <strong>of</strong>ten found mixed with Hyparrhenia spp. <strong>and</strong><br />

Themeda tri<strong>and</strong>ra in open grassl<strong>and</strong> on shallow, rocky, s<strong>and</strong>y soils. They provide<br />

late-season grazing for livestock (Rattray, 1960) but have low palatability<br />

(Skerman <strong>and</strong> Riveros, 1990). Although Herlocker (1999) did not consider this<br />

a vegetation type per se, <strong>and</strong> Rattray (1960) only considered this as a grassl<strong>and</strong><br />

type for Ug<strong>and</strong>a, Loudetia is widely distributed in rangel<strong>and</strong> ecosystems in<br />

Tanzania , Kenya <strong>and</strong> Ethiopia, but is never <strong>the</strong> dominant species. The most<br />

common species in <strong>the</strong> region is Loudetia simplex , which shows considerable<br />

variability in morphology in Ethiopia (Phillips, 1995). However, <strong>the</strong> genus has<br />

not been widely studied due to its low economic importance.<br />

The highl<strong>and</strong> areas <strong>of</strong> eastern Africa cover about 80 million hectares <strong>of</strong><br />

Ethiopia, Kenya <strong>and</strong> Ug<strong>and</strong>a. Exo<strong>the</strong>ca abyssinica grassl<strong>and</strong> is common on<br />

poor waterlogged soils in high altitude areas <strong>of</strong> eastern Africa, especially on<br />

<strong>the</strong> seasonally waterlogged vertisols, <strong>of</strong> which <strong>the</strong>re are 12.6 million hectares<br />

alone in Ethiopia (Srivastava et al., 1993). This species is closely related to<br />

Hyparrhenia <strong>and</strong> is <strong>of</strong>ten found growing in association with Themeda tri<strong>and</strong>ra<br />

. E. abyssinica has tough leaves <strong>and</strong> low nutritive value (Dougall, 1960),<br />

providing good grazing while young but quickly becoming tough <strong>and</strong> unpalatable.<br />

Setaria incrassata <strong>and</strong> S. sphacelata are also common grassl<strong>and</strong> species<br />

found in Acacia woodl<strong>and</strong> up to 2 600 m altitude on <strong>the</strong> vertisols <strong>of</strong> Ug<strong>and</strong>a,<br />

Sudan <strong>and</strong> Ethiopia (Rattray, 1960). S. incrassata is a very variable species, with<br />

morphotypes varying in plant robustness, bristles, <strong>and</strong> number <strong>and</strong> density <strong>of</strong><br />

spikelets (Phillips, 1995). It is closely related to S. sphacelata, which is also a<br />

very variable species, allowing selection <strong>of</strong> a range <strong>of</strong> cultivars from Kenyan<br />

ecotypes that vary in frost tolerance, maturity, pigmentation <strong>and</strong> nutritive value<br />

(Skerman <strong>and</strong> Riveros, 1990). Both S. sphacelata <strong>and</strong> S. incrassata are palatable<br />

grasses that withst<strong>and</strong> heavy grazing.<br />

Pennisetum grassl<strong>and</strong> areas can be classified as two types : high altitude<br />

grassl<strong>and</strong>s <strong>of</strong> P. cl<strong>and</strong>estinum <strong>and</strong> savannah grassl<strong>and</strong> <strong>of</strong> P. purpureum (Rattray,<br />

1960; Herlocker, 1999). Although belonging to <strong>the</strong> same genus, <strong>the</strong>se species<br />

are morphologically <strong>and</strong> ecotypically very distinct, <strong>and</strong> have very different distribution<br />

<strong>and</strong> ecological niches. Both species are indigenous to eastern Africa ,<br />

with high economic importance, <strong>and</strong> are cultivated in many o<strong>the</strong>r parts <strong>of</strong> <strong>the</strong><br />

world.<br />

P. cl<strong>and</strong>estinum is a prostrate stoloniferous perennial that is widely distributed<br />

in areas from 1 400 m to over 3 000 m in Kenya, Ethiopia, Tanzania<br />

<strong>and</strong> Ug<strong>and</strong>a. Its common name, Kikuyu grass , derives from <strong>the</strong> highl<strong>and</strong>s<br />

<strong>of</strong> Kenya, where it is abundant, being named after <strong>the</strong> Kikuyu ethnic group<br />

<strong>of</strong> central Kenya. It shows wide adaptability to drought , waterlogging <strong>and</strong><br />

occasional frosts (Skerman <strong>and</strong> Riveros, 1990). It is highly digestible, palatable,


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 37<br />

persistent <strong>and</strong> withst<strong>and</strong>s severe defoliation <strong>and</strong> grazing . It is <strong>the</strong> dominant<br />

species in natural pastures in many parts <strong>of</strong> <strong>the</strong> eastern Africa n highl<strong>and</strong>s. It<br />

is an invasive secondary species, which can quickly colonize disturbed soil in<br />

cropping areas <strong>and</strong> fallow l<strong>and</strong>, spreading by seeds or stolons, <strong>and</strong> may become<br />

a serious weed in cropl<strong>and</strong> (Boonman, 1993). It shows wide variability, with<br />

three distinct ecotypes classified on leaf width <strong>and</strong> length, stolon size <strong>and</strong> floral<br />

structure (Skerman <strong>and</strong> Riveros, 1990). Several ecotypes have been selected<br />

as commercial cultivars, which have been widely introduced into tropical<br />

highl<strong>and</strong> <strong>and</strong> subtropical areas. It is now widely grown outside its native<br />

distribution <strong>and</strong> is commonly cultivated in <strong>the</strong> Americas. Studies in <strong>the</strong> USA<br />

using starch gel electrophoresis to describe <strong>the</strong> distribution <strong>of</strong> genetic variation<br />

within <strong>and</strong> among introduced populations found a relatively high proportion<br />

<strong>of</strong> polymorphic loci across populations, indicating fixed heterozygosity due to<br />

polyploidy (Wilen et al., 1995). The highl<strong>and</strong> grazing areas <strong>of</strong> P. cl<strong>and</strong>estinum<br />

are <strong>of</strong>ten mixed with P. sphacelatum <strong>and</strong> Eleusine floccifolia . These two grasses<br />

are frequent in overgrazed pastures in <strong>the</strong> highl<strong>and</strong>s <strong>and</strong> mid-altitudes in <strong>the</strong><br />

Rift Valley, but are not palatable (Sisay <strong>and</strong> Baars, 2002) <strong>and</strong> are important for<br />

traditional basket making. Cattle avoid <strong>the</strong>se grasses, which have <strong>the</strong> potential<br />

to become major weeds on upl<strong>and</strong> pastures unless collected for basket making.<br />

Basket making is an important activity <strong>and</strong> source <strong>of</strong> income for rural women<br />

<strong>and</strong> collection <strong>of</strong> <strong>the</strong>se weedy grasses also maintains <strong>the</strong> quality <strong>of</strong> <strong>the</strong> communal<br />

grazing areas <strong>and</strong> grassl<strong>and</strong>s in <strong>the</strong> highl<strong>and</strong>s.<br />

Pennisetum purpureum is a tall, erect, vigorous perennial species that grows<br />

in damp grassl<strong>and</strong>s <strong>and</strong> forest areas up to 2 400 m in Kenya, Tanzania , Ug<strong>and</strong>a<br />

<strong>and</strong> Sudan. Herlocker (1999) recognized this as a vegetation region in Kenya<br />

<strong>and</strong> Ug<strong>and</strong>a, around <strong>the</strong> shores <strong>of</strong> Lake Victoria. Pennisetum purpureum<br />

is widely distributed through sub-Saharan Africa <strong>and</strong> is commonly called<br />

elephant grass or Napier grass, named after Colonel Napier <strong>of</strong> Bulawayo in<br />

Zimbabwe, who promoted its use at <strong>the</strong> start <strong>of</strong> <strong>the</strong> century. It is now widely<br />

used for cut-<strong>and</strong>-carry (where grass is collected by h<strong>and</strong> <strong>and</strong> carried to stallfed<br />

cattle ) for <strong>the</strong> smallholder dairy industry in eastern Africa <strong>and</strong> frequently<br />

produces up to 10–12 t/ha dry matter in rainfed conditions (Boonman, 1993).<br />

Elephant grass is palatable when young <strong>and</strong> leafy. It is fast growing <strong>and</strong> should<br />

be cut <strong>of</strong>ten to avoid its becoming tough <strong>and</strong> unpalatable with a high proportion<br />

<strong>of</strong> stem. Due to its importance in <strong>the</strong> region, considerable research has been<br />

done on elephant grass, including studies on its diversity. Tcacenco <strong>and</strong> Lance<br />

(1992) studied 89 morphological characters on 9 genotypes <strong>of</strong> elephant grass to<br />

determine which characters were most useful for description <strong>of</strong> <strong>the</strong> variation<br />

in <strong>the</strong> species, <strong>and</strong> concluded that variation existed from plant to plant, even<br />

within <strong>the</strong> same accession. A larger collection <strong>of</strong> 53 accessions was characterized<br />

for 20 morphological <strong>and</strong> 8 agronomic characters (Van de Wouw, Hanson<br />

<strong>and</strong> Leuthi, 1999). Again <strong>the</strong> germplasm was found to be very variable, but<br />

accessions could be clustered into six groups with similar morphology. More


38<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

recently, molecular techniques using RAPD markers were applied to study <strong>the</strong><br />

genetic diversity in <strong>the</strong> same collection, <strong>and</strong> also among farm clones in Kenya<br />

(Lowe et al., 2003). This technique was able to separate out hybrids between<br />

P. purpureum <strong>and</strong> P. glaucum from pure elephant grass accessions. Despite being<br />

clonally propagated, genetic diversity (Magguran, 1988) across all accessions<br />

was found to be fairly high, with a Shannon’s diversity index <strong>of</strong> 0.306.<br />

Panicum maximum is ano<strong>the</strong>r tall, fast growing species that is <strong>of</strong>ten found<br />

associated with Pennisetum in eastern Africa n grassl<strong>and</strong>s or associated with<br />

Cenchrus <strong>and</strong> Bothriochloa in Acacia woodl<strong>and</strong> in <strong>the</strong> dry savannah areas<br />

(Rattray, 1960). Herlocker (1999) recognized <strong>the</strong> Panicum-Hyparrhenia region<br />

along <strong>the</strong> coast northwards from Tanzania , through Kenya into Somalia .<br />

Panicum maximum is more widely distributed in Kenya, Ethiopia <strong>and</strong> Tanzania<br />

<strong>and</strong> is typical <strong>of</strong> shady places in <strong>the</strong> foothills <strong>of</strong> mountain ranges up to 2 000 m.<br />

P. maximum is a pioneer grass that comes in after clearing <strong>and</strong> cultivation <strong>of</strong><br />

<strong>the</strong> lowl<strong>and</strong> forest . There is a wide variation in plant habit, robustness <strong>of</strong> culms<br />

<strong>and</strong> pubescence (Phillips, 1995), <strong>and</strong> ecotypes with good agronomic characters<br />

have been selected as commercial cultivars. P. maximum is fast growing <strong>and</strong><br />

palatable, <strong>and</strong> its wide adaptation <strong>and</strong> variability make it an excellent grazing<br />

species in <strong>the</strong> savannahs. A collection <strong>of</strong> 426 ecotypes <strong>of</strong> P. maximum collected<br />

from Tanzania <strong>and</strong> Kenya were evaluated for morphological <strong>and</strong> agronomic<br />

traits in Brazil (Jank et al., 1997). Twenty-one morphological descriptors were<br />

found to discriminate among accessions <strong>and</strong> were used to cluster <strong>the</strong> collection.<br />

Considerable variation was found among <strong>the</strong> ecotypes <strong>and</strong> some with<br />

wide adaptation were selected for establishment <strong>of</strong> a breeding programme.<br />

O<strong>the</strong>r locally well -adapted ecotypes are also being developed for use within<br />

<strong>the</strong> region <strong>of</strong> adaptation.<br />

POLITICAL AND SOCIAL SYSTEMS IN PASTORAL LANDS OF EASTERN<br />

AFRICA<br />

Most dry grassl<strong>and</strong>s <strong>of</strong> eastern Africa are characterized by frequent droughts<br />

<strong>and</strong> high levels <strong>of</strong> risk <strong>of</strong> production for pastoral peoples (Little, [2000]).<br />

Livestock are one <strong>of</strong> <strong>the</strong> few ways to convert sunlight into nutritious food in<br />

<strong>the</strong>se dryl<strong>and</strong>s (wildlife are also important). Pastoralists traditionally manage<br />

risk by moving <strong>the</strong>ir livestock on a daily <strong>and</strong> seasonal basis to follow changes in<br />

<strong>the</strong> quality <strong>and</strong> quantity <strong>of</strong> pasture (IFAD, 1995). Cattle , camels , sheep , goats<br />

<strong>and</strong> donkeys are <strong>the</strong> main livestock species <strong>and</strong> are kept by <strong>the</strong> pastoralists for<br />

subsistence for <strong>the</strong>ir milk , meat <strong>and</strong> traction. Most herds are mixed as a means<br />

<strong>of</strong> adaptation to a changing environment, to supply food for <strong>the</strong> family <strong>and</strong> to<br />

act as a cash reserve in times <strong>of</strong> shortage, during droughts or disease-p<strong>and</strong>emics<br />

(Niamir, 1991).<br />

Although sale <strong>of</strong> livestock is a major source <strong>of</strong> income for pastoralists today,<br />

widespread sale (or commoditization) <strong>of</strong> livestock only became common in <strong>the</strong><br />

last century, with colonialism (Hodgson, 2000). Settled crop-livestock farmers


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 39<br />

are particularly oriented toward marketing: selling animals, milk <strong>and</strong> hides regularly.<br />

Herds are managed in a way that minimizes sales because <strong>of</strong> <strong>the</strong> traditional<br />

social <strong>and</strong> economic functions <strong>of</strong> livestock o<strong>the</strong>r than income generation<br />

(Coppock, 1994). In most pastoral areas, livestock are used as a social “safety<br />

net”, with livestock exchange cementing mutual obligations to help each o<strong>the</strong>r<br />

in times <strong>of</strong> need. Like many o<strong>the</strong>r pastoral areas, cattle are also <strong>of</strong> particular<br />

significance in <strong>the</strong> Borana area <strong>of</strong> Ethiopia as a symbol <strong>of</strong> wealth <strong>and</strong> prestige,<br />

<strong>and</strong> owners are reluctant to sell. Sheep <strong>and</strong> goats are usually sold to raise cash<br />

for household needs. Although marketing <strong>of</strong> livestock products (milk, meat ,<br />

hides) in pastoral systems is a relatively new phenomenon, pastoral peoples<br />

who live near markets <strong>and</strong> roads are increasingly selling products.<br />

Traditionally, herders consume a large part <strong>of</strong> <strong>the</strong> milk produced; any surplus<br />

is shared with neighbours, exchanged in barter or sold in urban areas. In<br />

Somalia , a commercial milk chain through a cooperative has been established<br />

by <strong>the</strong> pastoralists for marketing camel milk in Mogadishu as a source <strong>of</strong><br />

income to buy sugar, clo<strong>the</strong>s <strong>and</strong> medicines (Herren, 1990). An EU-funded<br />

project, Streng<strong>the</strong>ning food security through decentralized cooperation, active<br />

from 1996 to 2002, also supported establishment <strong>of</strong> a small processing plant for<br />

pasteurizing camel milk <strong>and</strong> marketing <strong>the</strong> resulting products in suitable packaging<br />

for <strong>the</strong> Somali market (EC, 2000). The 2001–2 drought had a considerable<br />

effect on camel calving intervals <strong>and</strong> milk sales. In some parts <strong>of</strong> Somalia, <strong>the</strong>re<br />

was virtually no income from milk sales following <strong>the</strong> drought. Milk formerly<br />

provided approximately 40 percent <strong>of</strong> a household’s income <strong>and</strong> <strong>the</strong> return on<br />

livestock sales, which typically provide an additional 40 percent <strong>of</strong> income, was<br />

halved after <strong>the</strong> drought (FSAU, 2003). Maasai in Kenya <strong>and</strong> Tanzania living<br />

close to main roads or towns sell fresh milk, butter or fermented milk. The<br />

Borana in sou<strong>the</strong>rn Ethiopia sour cow’s milk <strong>and</strong> process it into butter for sale<br />

in local markets or for transport to large cities (Holden <strong>and</strong> Coppock, 1992).<br />

Distance to market, season <strong>and</strong> wealth <strong>of</strong> <strong>the</strong> household (which is directly<br />

related to <strong>the</strong> number <strong>of</strong> livestock owned) influence marketing <strong>of</strong> dairy products<br />

in <strong>the</strong> sou<strong>the</strong>rn rangel<strong>and</strong>s <strong>of</strong> Ethiopia (Coppock, 1994).<br />

Most <strong>of</strong> <strong>the</strong> extensive grassl<strong>and</strong>s in <strong>the</strong> region are ei<strong>the</strong>r under <strong>the</strong> control <strong>of</strong><br />

<strong>the</strong> government <strong>and</strong> designated as wildlife <strong>and</strong> conservation areas for national<br />

parks (about 10 percent <strong>of</strong> <strong>the</strong> l<strong>and</strong> area) or are open access or common property<br />

resources . Access to <strong>the</strong>se resources <strong>and</strong> <strong>the</strong> conditions under which <strong>the</strong>y<br />

can be used are under national laws, but frequently traditional l<strong>and</strong> use rights<br />

are granted by local communities . Traditionally, long-term sustainability <strong>of</strong><br />

<strong>the</strong>se rangel<strong>and</strong>s has been ensured by agreed management norms, but <strong>the</strong>se<br />

are increasingly breaking down as l<strong>and</strong>s privatize, crop farmers migrate to<br />

pastoral areas <strong>and</strong> human needs grow. Governments are also reducing support<br />

to pastoral peoples, who are <strong>of</strong>ten marginalized in national affairs (IFAD,<br />

1995). Options for income generation <strong>and</strong> alternative l<strong>and</strong> uses for extensive<br />

grassl<strong>and</strong>s for pastoralists are limited <strong>and</strong> can lead to overutilization <strong>and</strong> l<strong>and</strong>


40<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

degradation if none <strong>of</strong> <strong>the</strong> users take responsibility for <strong>the</strong> management <strong>and</strong><br />

sustainability <strong>of</strong> <strong>the</strong> system.<br />

Common property <strong>and</strong> traditional access regimes with sustainable range<br />

management institutions <strong>and</strong> resource sharing arrangements were practiced in<br />

<strong>the</strong> region until <strong>the</strong> colonial era (IFAD, 1995) <strong>and</strong> continue in some areas today.<br />

These were <strong>and</strong> are based on a transhumance grazing system developed over<br />

many years to exploit <strong>the</strong> ecological heterogeneity <strong>and</strong> make optimal use <strong>of</strong> <strong>the</strong><br />

scarce resources <strong>of</strong> grazing <strong>and</strong> water throughout <strong>the</strong> year. These traditional<br />

management practices include grazing rotation strategies <strong>and</strong> establishment<br />

<strong>of</strong> grazing preserves for <strong>the</strong> dry season . Drought is <strong>the</strong> most serious challenge<br />

facing pastoralists in <strong>the</strong> region <strong>and</strong> access to l<strong>and</strong> <strong>and</strong> water are <strong>of</strong>ten <strong>the</strong> cause<br />

<strong>of</strong> conflict between pastoralists, ranchers <strong>and</strong> crop-livestock farmers (Mkutu,<br />

2001). Traditional systems <strong>of</strong> access to water are common in most countries<br />

in <strong>the</strong> region. The pastoralists <strong>of</strong> nor<strong>the</strong>rn Somalia <strong>and</strong> sou<strong>the</strong>rn Ethiopia also<br />

have a complex <strong>and</strong> well -regulated system <strong>of</strong> well management to regulate<br />

water use, as well as traditional informal <strong>and</strong> formal social controls on use <strong>of</strong><br />

common property <strong>and</strong> open property resources to ensure sustainable use <strong>of</strong><br />

<strong>the</strong> grassl<strong>and</strong> <strong>and</strong> water resources (Niamir, 1991). This is exemplified by herder<br />

response to drought <strong>and</strong> conflict in sou<strong>the</strong>rn Somalia, where herders move<br />

camels <strong>and</strong> cattle great distances to good pastures in times <strong>of</strong> drought, while<br />

<strong>the</strong>y graze small stock closer to home (Little, [2000]).<br />

Over <strong>the</strong> last century, <strong>the</strong>se indigenous range management institutions have<br />

been weakened by demographic, political <strong>and</strong> social change in <strong>the</strong> region.<br />

The greatest threat to <strong>the</strong> traditional pastoralist system comes from <strong>the</strong> rapid<br />

population growth <strong>of</strong> <strong>the</strong> last twenty years <strong>and</strong> conversion <strong>of</strong> communal<br />

grassl<strong>and</strong> to open access state property or private l<strong>and</strong>, which has led to more<br />

grassl<strong>and</strong> being used for smallholder crop-livestock farming. Policies have<br />

constrained <strong>the</strong> movement <strong>of</strong> pastoralists <strong>and</strong> promoted sedentarization <strong>and</strong><br />

many permanent settlements have been established in <strong>the</strong> rangel<strong>and</strong>s; with<br />

many pastoralists choosing to shift <strong>the</strong>ir production systems to include croplivestock<br />

farming (Galaty, 1994; Campbell et al., 2000). In S.E. Kajiado District,<br />

Kenya, l<strong>and</strong> use conflict reflects ongoing competition over access to scarce l<strong>and</strong><br />

<strong>and</strong> water resources between herders, farmers <strong>and</strong> wildlife – competition that<br />

has intensified strongly over <strong>the</strong> last 40 years, after <strong>the</strong> district became open to<br />

outside migrants.<br />

Today, farming extends into <strong>the</strong> wetter margins <strong>of</strong> <strong>the</strong> rangel<strong>and</strong>s, along rivers<br />

<strong>and</strong> around swamps. This has reduced <strong>the</strong> area available for grazing <strong>and</strong> <strong>the</strong><br />

ease <strong>of</strong> access to water for both domestic stock <strong>and</strong> wildlife . Political alliances<br />

have emerged among l<strong>and</strong> managers to gain or maintain control <strong>of</strong> critical l<strong>and</strong><br />

<strong>and</strong> water resources <strong>and</strong> to influence policy on agriculture, wildlife <strong>and</strong> tourism<br />

<strong>and</strong> l<strong>and</strong> tenure (Campbell et al., 2000). Ano<strong>the</strong>r well -documented example<br />

<strong>of</strong> this is from <strong>the</strong> Beja pastoralists in nor<strong>the</strong>astern Sudan, who, as a result<br />

<strong>of</strong> drought , are changing <strong>the</strong>ir nomadic way <strong>of</strong> life as camel <strong>and</strong> smallstock


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 41<br />

herders to more settled, smallholder farming <strong>and</strong> rearing <strong>of</strong> small ruminants.<br />

Like o<strong>the</strong>r pastoralists in <strong>the</strong> region, <strong>the</strong>y find that small ruminants are easy<br />

to manage near <strong>the</strong> homestead, cost less, are more easily sold <strong>and</strong> breed more<br />

quickly than camels (Pantuliano, 2002). Government policies have supported<br />

cropping <strong>and</strong> reduction <strong>of</strong> communal grazing l<strong>and</strong> <strong>and</strong>, more recently, mobility<br />

patterns <strong>and</strong> access to key resources have been constrained by conflict <strong>and</strong> civil<br />

insecurity. Many Beja now move very little or not at all, reducing <strong>the</strong>ir capacity<br />

to make effective use <strong>of</strong> <strong>the</strong> rangel<strong>and</strong> from <strong>the</strong> perspective <strong>of</strong> livestock<br />

production. As Beja settle, vegetation around settlements has changed, with<br />

<strong>the</strong> disappearance <strong>of</strong> seven palatable species <strong>and</strong> an increase in unpalatable species<br />

(Pantuliano, 2002). These changes are typical <strong>of</strong> those faced by pastoralists<br />

across <strong>the</strong> region. Even so, many families (or parts <strong>of</strong> families) still send <strong>the</strong><br />

younger family members for transhumance in <strong>the</strong> dry season while <strong>the</strong> women<br />

<strong>and</strong> older family members remain on <strong>the</strong> farm to take care <strong>of</strong> <strong>the</strong> crops <strong>and</strong><br />

smallstock.<br />

The national l<strong>and</strong> tenure systems <strong>of</strong> <strong>the</strong> region are unrelated to <strong>the</strong> traditional<br />

l<strong>and</strong> tenure <strong>and</strong> access regimes <strong>of</strong> <strong>the</strong> pastoralist groups. In Ethiopia, <strong>the</strong> Sudan<br />

<strong>and</strong> Somalia , all l<strong>and</strong> is state owned <strong>and</strong> cropping l<strong>and</strong> can be leased from or<br />

allocated by <strong>the</strong> government. In Somalia, l<strong>and</strong> tenure is under a mixture <strong>of</strong> traditional<br />

<strong>and</strong> modern legal systems (Amadi, 1997). The 1975 L<strong>and</strong> Reform Act<br />

<strong>of</strong> Somalia gave l<strong>and</strong> for state enterprises <strong>and</strong> mechanized agriculture (Unruh,<br />

1995); pastoralists only had rights as part <strong>of</strong> government-sponsored cooperatives<br />

<strong>and</strong> associations, <strong>and</strong> were forced to move from <strong>the</strong>ir traditional l<strong>and</strong>s to<br />

more marginal l<strong>and</strong>s with open access. All l<strong>and</strong> belonged to <strong>the</strong> state <strong>and</strong> 50year<br />

leases were provided to users, although many enclosures were not legally<br />

leased <strong>and</strong> ownership was respected by local communities under traditional<br />

systems (Amadi, 1997). Following <strong>the</strong> conflict <strong>and</strong> <strong>the</strong> absence <strong>of</strong> a central<br />

government, <strong>the</strong> deregulation <strong>of</strong> l<strong>and</strong> tenure <strong>and</strong> unauthorized enclosure <strong>of</strong><br />

pastoral l<strong>and</strong> for grass production by entrepreneurs for export livestock production<br />

to Kenya left poor herders <strong>and</strong> agropastoralists with little livelihood<br />

security (de Waal, 1996). For <strong>the</strong> Sudan, <strong>the</strong> government recognizes rights <strong>of</strong><br />

possession over l<strong>and</strong> but also reserves <strong>the</strong> right to acquire l<strong>and</strong> from local owners<br />

for <strong>the</strong> state (Amadi, 1997). In Ethiopia, l<strong>and</strong> is allocated through <strong>the</strong> l<strong>and</strong><br />

administration, <strong>and</strong> redistribution occurs, so people do not have secure rights<br />

over <strong>the</strong>ir l<strong>and</strong> (EEA/EEPRI, 2002), resulting in inter-ethnic <strong>and</strong> inter-communal<br />

conflict over resources . In neighbouring Eritrea , l<strong>and</strong> is owned by <strong>the</strong><br />

community, <strong>and</strong> l<strong>and</strong> tenure is governed by traditional laws <strong>and</strong> administered<br />

under traditional village administrative bodies (Amadi, 1997).<br />

L<strong>and</strong> tenure in Ug<strong>and</strong>a is very complex, reflecting <strong>the</strong> rich history <strong>of</strong> <strong>the</strong><br />

country. Mailo tenure is particular to <strong>the</strong> Bug<strong>and</strong>a area <strong>of</strong> <strong>the</strong> country <strong>and</strong><br />

dates back to 1900 when <strong>the</strong> king (kabaka) <strong>of</strong> <strong>the</strong> Bug<strong>and</strong>a people shared l<strong>and</strong><br />

among <strong>the</strong> chiefs to own in perpetuity. In 1975, <strong>the</strong> L<strong>and</strong> Reform Decree made<br />

all l<strong>and</strong> public with title vested in <strong>the</strong> Ug<strong>and</strong>a L<strong>and</strong> Commission, <strong>and</strong> allowed


42<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

leasehold tenure (Busingye, 2002). Although <strong>the</strong> mailo system was <strong>of</strong>ficially<br />

abolished, it continued until <strong>the</strong> late 1990s, when <strong>the</strong> 1995 Constitution <strong>and</strong><br />

<strong>the</strong> L<strong>and</strong> Act <strong>of</strong> 1998 were implemented. Freehold tenure was also granted by<br />

<strong>the</strong> state <strong>and</strong> later by <strong>the</strong> L<strong>and</strong> Commission, mostly to institutions for religious<br />

<strong>and</strong> educational purposes (Busingye, 2002). The 1995 Constitution <strong>and</strong> 1998<br />

L<strong>and</strong> Act also identified a new l<strong>and</strong> tenure system called customary tenure.<br />

The l<strong>and</strong> is held, used <strong>and</strong> disposed <strong>of</strong> following <strong>the</strong> customary regulation <strong>of</strong><br />

<strong>the</strong> community, <strong>and</strong> people using <strong>the</strong> l<strong>and</strong> have some rights . Customary tenure<br />

is <strong>the</strong> most common system in <strong>the</strong> rangel<strong>and</strong>s (Amadi, 1997). The emphasis is<br />

on use, which is controlled by <strong>the</strong> family, who distribute l<strong>and</strong> to male family<br />

members for <strong>the</strong>ir use ra<strong>the</strong>r than ownership. Customary tenure also includes<br />

<strong>the</strong> communal l<strong>and</strong>, where users have rights to grazing , farming, fuelwood,<br />

access to water <strong>and</strong> l<strong>and</strong> for traditional uses <strong>and</strong> burial grounds (Busingye,<br />

2002). Ownership is through <strong>the</strong> family or community, <strong>and</strong> <strong>the</strong>re are no individual<br />

ownership rights. Traditional authorities allocate <strong>the</strong> l<strong>and</strong> <strong>and</strong> resolve<br />

disputes. In addition some l<strong>and</strong> was declared Crown L<strong>and</strong>s in 1900, <strong>and</strong> areas<br />

are still held by <strong>the</strong> state under <strong>the</strong> Ug<strong>and</strong>a L<strong>and</strong> Commission as protected<br />

areas, some <strong>of</strong> which are now open access.<br />

The l<strong>and</strong> tenure system in <strong>the</strong> United Republic <strong>of</strong> Tanzania is a legacy<br />

<strong>of</strong> colonial rule, with all l<strong>and</strong>s being public l<strong>and</strong> <strong>and</strong> remain vested in <strong>the</strong><br />

President as a trustee for <strong>and</strong> on behalf <strong>of</strong> all citizens <strong>of</strong> Tanzania (Nyongeza,<br />

1995; Shivji, 1999). The state grants rights <strong>of</strong> occupancy <strong>and</strong> tolerates customary<br />

occupation <strong>and</strong> use <strong>of</strong> l<strong>and</strong>. All public l<strong>and</strong> is categorized under three types :<br />

General, Reserved or Village l<strong>and</strong>, which are each managed <strong>and</strong> administered<br />

by ministry <strong>of</strong>ficials. The Commissioner for L<strong>and</strong>s has <strong>the</strong> power to allocate<br />

l<strong>and</strong> on <strong>the</strong> general, <strong>and</strong> even reserved, l<strong>and</strong>s. When a village registers its l<strong>and</strong>,<br />

<strong>the</strong> title deeds are held in trust for <strong>the</strong> whole village by <strong>the</strong> Village Chairman<br />

<strong>and</strong> Council. Numerous l<strong>and</strong>-related conflicts exist in Tanzania, partly caused<br />

by conflicting l<strong>and</strong> use policies. The Villagization Programme (1974–76)<br />

concentrated people toge<strong>the</strong>r, displacing some <strong>and</strong> allocating <strong>the</strong>m l<strong>and</strong> that<br />

was taken from o<strong>the</strong>rs. Some <strong>of</strong> <strong>the</strong> villages were relocated into reserved<br />

l<strong>and</strong>, thus creating pockets <strong>of</strong> habitation <strong>and</strong> cultivation in protected areas.<br />

With <strong>the</strong> economic liberalization in <strong>the</strong> mid 1980s, large-scale l<strong>and</strong> alienation<br />

occurred, in particularly in <strong>the</strong> Arusha region, where vast parts <strong>of</strong> rangel<strong>and</strong>s<br />

were leased out to large-scale farmers (Igoe <strong>and</strong> Brockington, 1999). Village<br />

l<strong>and</strong> can also be allocated by <strong>the</strong> government, if it is not registered or its use<br />

can not be demonstrated. To secure <strong>the</strong>ir title deeds, many pastoralists started<br />

cultivating. Much <strong>of</strong> <strong>the</strong> rangel<strong>and</strong> areas in Tanzania have been categorized as<br />

reserved l<strong>and</strong>s, having been set aside as national parks, game reserves or game<br />

controlled areas, thus making <strong>the</strong>m inaccessible for herders <strong>and</strong> <strong>the</strong>ir livestock<br />

(Brockington, 2002).<br />

L<strong>and</strong> tenure in Kenyan pastoral systems has evolved rapidly over <strong>the</strong> last half<br />

century. About <strong>the</strong> 1940s, Kenyan colonial authorities introduced an entirely


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 43<br />

new type <strong>of</strong> l<strong>and</strong> use to rangel<strong>and</strong> ecosystems : wildlife -only protected l<strong>and</strong>. In<br />

subsequent years, <strong>the</strong> Kenya Game Department transferred <strong>the</strong> management<br />

<strong>of</strong> game reserves in Maasail<strong>and</strong> to local District Councils. After independence<br />

in 1963, <strong>the</strong>se reserves were designated “County Council Reserves” 3 (Lamprey<br />

<strong>and</strong> Waller, 1990). Most <strong>of</strong> <strong>the</strong>se conservation areas were established in <strong>the</strong> dry<br />

season grazing reserve for pastoral people, livestock <strong>and</strong> wildlife. This change<br />

in l<strong>and</strong> tenure appropriated <strong>the</strong>se critical resources for use by wildlife alone for<br />

<strong>the</strong> first time.<br />

Also in <strong>the</strong> mid-1960s, <strong>the</strong> Kenya Government gave pastoral groups title<br />

deeds to large tracts <strong>of</strong> grazing l<strong>and</strong> that <strong>the</strong>y had used traditionally over a<br />

long period (Lawrance Report, 1966). Each member shared ownership <strong>of</strong> <strong>the</strong><br />

entire ranch under <strong>the</strong> Group Representatives Act, 1968, but <strong>the</strong> livestock were<br />

owned by individual members (Lamprey <strong>and</strong> Waller, 1990). Although <strong>the</strong>se<br />

ranches were large (Koyake Group Ranch in <strong>the</strong> Mara area is 971 km 2 ) <strong>and</strong><br />

group ranch boundaries were relatively porous to livestock <strong>and</strong> wildlife movement,<br />

<strong>the</strong>se group ranches started to circumscribe who could live where in <strong>the</strong><br />

ecosystem . The group ranch system was instituted more strongly in <strong>the</strong> wetter<br />

rangel<strong>and</strong>s in <strong>the</strong> south <strong>and</strong> just north <strong>of</strong> Mt. Kenya; arid rangel<strong>and</strong>s fur<strong>the</strong>r<br />

northwest <strong>and</strong> nor<strong>the</strong>ast were largely unaffected by this change in tenure .<br />

Since <strong>the</strong> early 1980s, group ranches have been adjudicated <strong>and</strong> are becoming<br />

privatized (Galaty, 1994). Areas near towns <strong>and</strong> roads were <strong>the</strong> first to be<br />

privatized. For example, <strong>the</strong> rangel<strong>and</strong> nearest to Nairobi was privatized in <strong>the</strong><br />

early 1980s, while o<strong>the</strong>r group ranches in drier areas are currently undergoing<br />

subdivision. Pastoral l<strong>and</strong> owners are struggling to balance <strong>the</strong> trade-<strong>of</strong>fs <strong>of</strong><br />

private tenure : even though secure ownership is a boon, lack <strong>of</strong> access to wider<br />

grazing l<strong>and</strong>s <strong>and</strong> loss <strong>of</strong> wildlife are not. Groups <strong>and</strong> families are trying to<br />

address <strong>the</strong>se problems with reciprocal grazing arrangements <strong>and</strong> establishment<br />

<strong>of</strong> community wildlife reserves . This process has partly been driven by<br />

pastoral peoples throughout Kenya beginning to settle permanently to have<br />

access to schools, health care <strong>and</strong> o<strong>the</strong>r business opportunities in <strong>the</strong> higher<br />

potential areas. At <strong>the</strong> same time, pastoral people want to secure <strong>the</strong>ir ownership<br />

rights as <strong>the</strong>y see large tracts <strong>of</strong> communal l<strong>and</strong> leased to outsiders for<br />

mechanized agriculture.<br />

Privatization <strong>of</strong> l<strong>and</strong> in pastoral areas robs pastoral peoples <strong>of</strong> one <strong>of</strong> <strong>the</strong>ir<br />

greatest assets: communal access to l<strong>and</strong> . In <strong>the</strong> 1960s, Hardin (1968) decried<br />

communal access to l<strong>and</strong>, describing it as <strong>the</strong> “tragedy <strong>of</strong> <strong>the</strong> commons ”,<br />

assuming that communal access meant free <strong>and</strong> unregulated access leading<br />

to overuse. This has been used as an argument in favour <strong>of</strong> privatization.<br />

3 Intitially established in <strong>the</strong> late 1940s as ‘National Reserves’ under Kenya Royal National<br />

Parks, <strong>the</strong>se areas were once again redesignated as national reserves under <strong>the</strong> 1976 Wildlife<br />

(Conservation <strong>and</strong> Management) Act. However, <strong>the</strong>y continued to be managed by county<br />

councils.


44<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

However, most communal access to pastoral l<strong>and</strong> <strong>and</strong> water is not unregulated,<br />

ra<strong>the</strong>r it is governed by traditional rules <strong>of</strong> access controlling who uses <strong>the</strong> l<strong>and</strong><br />

<strong>and</strong> water, where <strong>and</strong> when. These rules were designed to sustain grassl<strong>and</strong><br />

productivity for <strong>the</strong> use <strong>of</strong> all in communally shared l<strong>and</strong>s. Privatization <strong>of</strong><br />

l<strong>and</strong> is now causing <strong>the</strong> “tragedy <strong>of</strong> privatization” , where pastoral people are<br />

impoverished because l<strong>and</strong> holdings are too small to support <strong>the</strong>ir livelihoods<br />

in dry grazing l<strong>and</strong>s . This is what Rutten (1992) nicely coined as “selling l<strong>and</strong><br />

to buy poverty”. The overgrazing issue is discussed below, applicable to both<br />

communal <strong>and</strong> privatized l<strong>and</strong>.<br />

INTEGRATION OF GRASSLANDS INTO SMALLHOLDER FARMING<br />

SYSTEMS<br />

As pastoral systems evolve <strong>and</strong> herders avoid drought <strong>and</strong> disasters through<br />

diversification <strong>and</strong> risk management , sedentarization <strong>and</strong> settlement to improve<br />

income-earning capacity is occurring in nor<strong>the</strong>rn Kenya <strong>and</strong> sou<strong>the</strong>rn Ethiopia<br />

(Little et al., 2001). There continues to be an expansion <strong>of</strong> cropping in areas<br />

where agriculture is feasible, to allow herders to better manage risk <strong>and</strong> respond<br />

to drought (Little et al., 2001). As cropping exp<strong>and</strong>s into <strong>the</strong> rangel<strong>and</strong>s <strong>of</strong> <strong>the</strong><br />

region, grassl<strong>and</strong>s have become an integral part <strong>of</strong> crop-livestock systems.<br />

Nearly all grassl<strong>and</strong> areas in developing countries are grazed (CAST, 1999).<br />

One viable alternative for settled crop-livestock farmers in <strong>the</strong> region is to use<br />

cultivated forage grasses to support livestock production <strong>and</strong> reduce <strong>the</strong> pressure<br />

on <strong>the</strong> natural grassl<strong>and</strong>. Cultivated forages have received less attention<br />

from breeders than o<strong>the</strong>r crops (CAST, 1999). However, recent expansion in<br />

dairying, especially around urban areas in eastern Africa , <strong>and</strong> <strong>the</strong> anticipated<br />

increased dem<strong>and</strong> for livestock production proposed by Delgado et al. (1999)<br />

has led smallholder farmers to pay more attention to increased use <strong>of</strong> cultivated<br />

grasses. Inclusion <strong>of</strong> grasses into a crop-livestock system can also have positive<br />

environmental benefits. Vegetation cover can be improved through transfer <strong>of</strong><br />

seeds <strong>and</strong> trampling <strong>and</strong> breaking soil crusts <strong>and</strong> fertility improved by manure<br />

deposited during grazing (Steinfeld, de Haan <strong>and</strong> Blackburn, 1997). Fallow<br />

<strong>and</strong> grassl<strong>and</strong> rotations improve soil fertility <strong>and</strong> minimize soil erosion, while<br />

reduced nutrient losses from manure from livestock fed on grasses in a cut<strong>and</strong>-carry<br />

system double <strong>the</strong> effective availability <strong>of</strong> nitrogen <strong>and</strong> phosphorus<br />

<strong>and</strong> can be put back into <strong>the</strong> system to maintain nutrient balances (de Haan,<br />

Steinfeld <strong>and</strong> Blackburn, 1997).<br />

Rhodes grass <strong>and</strong> elephant grass are among <strong>the</strong> earliest tropical grasses<br />

grown in eastern Africa , since <strong>the</strong> start <strong>of</strong> <strong>the</strong> twentieth century. They have<br />

been widely planted for livestock production in Kenya <strong>and</strong> Ug<strong>and</strong>a since <strong>the</strong><br />

1930s (Boonman, 1993) <strong>and</strong> are an important part <strong>of</strong> crop-livestock systems in<br />

higher-potential areas. Grass rotations <strong>and</strong> fallowing <strong>of</strong> crop l<strong>and</strong>s were common<br />

practices to provide soil cover <strong>and</strong> restore organic matter some 50 years<br />

ago, but this practice has reduced due to increasing population pressure <strong>and</strong>


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 45<br />

dem<strong>and</strong> for crop l<strong>and</strong> (Boonman, 1993). Due to scarcity <strong>of</strong> l<strong>and</strong>, most dairy<br />

farmers in <strong>the</strong> heavily populated highl<strong>and</strong>s <strong>of</strong> eastern Africa now practice a cut<strong>and</strong>-carry<br />

zero grazing system . Currently, elephant grass is <strong>the</strong> most important<br />

forage crop in dairy systems in <strong>the</strong> Central Kenya Highl<strong>and</strong>s (Staal et al., 1997)<br />

<strong>and</strong> has been shown to constitute between 40 to 80 percent <strong>of</strong> <strong>the</strong> forage for<br />

<strong>the</strong> smallholder dairy farms . In Kenya alone, more than 0.3 million smallholder<br />

dairy producers (53 percent) rely on elephant grass as a major source <strong>of</strong> feed.<br />

The dem<strong>and</strong> is so high that l<strong>and</strong>less farmers plant along highway verges <strong>and</strong> on<br />

communal l<strong>and</strong> to cut <strong>and</strong> sell to stock owners.<br />

Rhodes grass has also been widely used for improved pastures due to its<br />

wide adaptation <strong>and</strong> vigorous root system, which confers reasonable tolerance<br />

to drought <strong>and</strong> persistence under grazing <strong>and</strong> makes it suitable for erosion<br />

control , <strong>and</strong> <strong>of</strong> value for hay making (Boonman, 1993). It shows some cold<br />

tolerance, <strong>and</strong> several commercial varieties have been developed in Kenya. It<br />

ranks second only to elephant grass in yield <strong>and</strong> drought tolerance, producing<br />

up to 18 t DM/ha in suitable environments (Boonman, 1993).<br />

Ano<strong>the</strong>r cultivated grass with wide adaptability that is being grown in<br />

eastern Africa is setaria (Setaria sphacelata ). Herbage yield can equal Rhodes<br />

grass <strong>and</strong> it is more persistent at higher altitudes, up to about 3 000 m above<br />

sea level, <strong>and</strong> can tolerate frost <strong>and</strong> seasonal waterlogging (Boonman, 1993).<br />

However, it is not as drought tolerant as Rhodes grass <strong>and</strong> has a tendency<br />

to invade agricultural l<strong>and</strong>, <strong>and</strong> can become weedy <strong>and</strong> difficult to eradicate.<br />

Although its use reduced in Kenya during <strong>the</strong> 1980s, it is still a useful grass in<br />

wetter <strong>and</strong> higher-altitude areas, <strong>and</strong> it is now gaining importance for use in soil<br />

stabilization <strong>and</strong> erosion control along bunds in Tanzania <strong>and</strong> central Kenya<br />

(Boonman, 1993). Unfortunately, none <strong>of</strong> <strong>the</strong>se options for improved forage<br />

production are available to settled pastoralists across <strong>the</strong> vast dryl<strong>and</strong> areas <strong>of</strong><br />

<strong>the</strong> region.<br />

CASE STUDIES OF THE EVOLUTION OF EXTENSIVE RANGE SYSTEMS<br />

OVER THE LAST 40 YEARS<br />

General<br />

Expansion <strong>of</strong> cropl<strong>and</strong>, intensification <strong>of</strong> livestock production <strong>and</strong> changes<br />

in l<strong>and</strong> tenure are common forces for change in pastoral systems around <strong>the</strong><br />

world (Niamir-Fuller, 1999; Blench, 2000). Across Africa, colonial <strong>and</strong> postcolonial<br />

policies favoured crop cultivation over livestock production, thus<br />

giving agriculturalists <strong>the</strong> economic “upper h<strong>and</strong>” compared to pastoralists<br />

(Niamir-Fuller, 1999). As described earlier, pastoralists are thus ei<strong>the</strong>r pushed<br />

onto more marginal l<strong>and</strong>s for grazing or <strong>the</strong>y begin to take up crop agriculture<br />

<strong>the</strong>mselves, becoming agropastoralists (vide Campbell et al., 2000). In most<br />

cases, customary political <strong>and</strong> management systems are becoming weaker<br />

(Niamir-Fuller, 1999). Livestock development projects are also driving change<br />

in pastoral l<strong>and</strong>s by opening up remote pastures with <strong>the</strong> spread <strong>of</strong> borehole


46<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

technology <strong>and</strong> fragmentation <strong>of</strong> rangel<strong>and</strong>s by veterinary cordon fences ; this<br />

is true in eastern Africa , but particularly in sou<strong>the</strong>rn Africa. <strong>Conflicts</strong> have<br />

resulted in changes in l<strong>and</strong> tenure, with restricted access to traditional grazing<br />

l<strong>and</strong>s as well as reduced mobility <strong>of</strong> pastoralists in insecure areas (Mkutu,<br />

2001).<br />

This “contraction” <strong>of</strong> pastoral grazing systems reduces <strong>the</strong> scale <strong>of</strong> resource<br />

use by pastoral peoples. Pastoral success depends largely on tracking patchy<br />

resources through time. In most traditional systems , this requires an opportunistic<br />

strategy <strong>of</strong> movement from daily <strong>and</strong> weekly changes in grazing orbits, to<br />

seasonal migrations over large l<strong>and</strong>scapes. Many <strong>of</strong> <strong>the</strong> forces driving change<br />

in pastoral systems curtail <strong>the</strong> ability <strong>of</strong> pastoralists to move: sedentarization<br />

limits <strong>the</strong> maximal grazing distance achievable from a fixed homestead; privatization<br />

<strong>of</strong> l<strong>and</strong> tenure limits access to many pastures; <strong>and</strong> gazetting <strong>of</strong> protected<br />

areas prevents pastoralists from reaching some pastures.<br />

Evolution <strong>of</strong> l<strong>and</strong> use changes in <strong>the</strong> semi -arid rangel<strong>and</strong>s<br />

surrounding <strong>the</strong> Serengeti-Mara Ecosystem, straddling <strong>the</strong> Kenyan–<br />

Tanzanian border<br />

Maasail<strong>and</strong> in sou<strong>the</strong>rn Kenya <strong>and</strong> nor<strong>the</strong>rn Tanzania has been subject to<br />

considerable vegetation changes since <strong>the</strong> beginning <strong>of</strong> <strong>the</strong> twentieth century.<br />

Over <strong>the</strong> past century, <strong>the</strong> area has passed through successive stages <strong>of</strong><br />

transformation as <strong>the</strong> result <strong>of</strong> <strong>the</strong> interaction between four distinct, <strong>and</strong><br />

probably cyclical, processes <strong>of</strong> change: change in vegetation; climate; tsetse<br />

<strong>and</strong> tick infection; <strong>and</strong> pastoral occupation <strong>and</strong> management . At <strong>the</strong> end <strong>of</strong><br />

<strong>the</strong> nineteenth century, Maasai pastoralists had access to extensive grassl<strong>and</strong>s<br />

(Waller, 1990). During <strong>and</strong> following <strong>the</strong> great rinderpest epidemic <strong>of</strong> 1890,<br />

cattle populations in eastern Africa succumbed rapidly: by 1892, 95 percent<br />

had died. Famine <strong>and</strong> epidemics <strong>of</strong> endemic diseases such as smallpox reduced<br />

human populations to negligible numbers in Maasail<strong>and</strong>. Wild ruminants also<br />

died in great numbers due to rinderpest, but gradually developed immunity.<br />

By 1910, wildlife numbers rose, with <strong>the</strong> exception <strong>of</strong> wildebeest <strong>and</strong> buffalo,<br />

whose numbers were kept low from yearling mortality. These natural disasters<br />

disrupted <strong>the</strong> grazing patterns <strong>and</strong> reduced intensity. Dense woodl<strong>and</strong>s <strong>and</strong><br />

thickets established in <strong>the</strong> Mara Plains <strong>and</strong> nor<strong>the</strong>rn Serengeti (Dublin, 1995)<br />

because fires were less frequent, since population decreased with <strong>the</strong> famine<br />

<strong>and</strong> <strong>the</strong>re were fewer people to light fires, so fuel loads grew with less grazing<br />

<strong>of</strong>ftake. This dense, woody vegetation was a habitat for tsetse flies, which fed<br />

on <strong>the</strong> abundant wildlife <strong>and</strong> prevented significant human re-settlement. Until<br />

<strong>the</strong> 1950s, Maasai chose to settle <strong>and</strong> graze away from <strong>the</strong> Mara Plains (Waller,<br />

1990). At that time, <strong>the</strong> human population in <strong>the</strong> area was rapidly increasing<br />

<strong>and</strong> Maasai herdsmen used fire to improve grazing pastures (Plate 2.7) <strong>and</strong> to<br />

clear tsetse-infested bush . Increased elephant densities fur<strong>the</strong>r maintained <strong>the</strong><br />

woodl<strong>and</strong> decline in <strong>the</strong> Maasai Mara <strong>and</strong> Serengeti as <strong>the</strong> animals moved to <strong>the</strong>


R.S. REID<br />

The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 47<br />

Plate 2.7<br />

Large areas <strong>of</strong> eastern African grassl<strong>and</strong>s burn every year, providing short green<br />

regrowth for many species <strong>of</strong> livestock <strong>and</strong> wildlife in <strong>the</strong>se ecosystems.<br />

protected areas from <strong>the</strong> surrounding, more densely inhabited areas. Between<br />

1957 <strong>and</strong> 1973, woodl<strong>and</strong>s in <strong>the</strong> Mara decreased from about 30 percent to<br />

about 5 percent cover (Lamprey <strong>and</strong> Waller, 1990). By <strong>the</strong> mid-1970s <strong>the</strong><br />

wildebeest population had increased to about 1.5 million, <strong>and</strong> currently<br />

fluctuates around 1 million (Dublin, 1995).<br />

Over <strong>the</strong> past 25 years, considerable changes in l<strong>and</strong> cover <strong>and</strong> l<strong>and</strong> use have<br />

taken place in <strong>the</strong> Serengeti-Mara ecosystem <strong>and</strong> in <strong>the</strong> rangel<strong>and</strong>s surrounding<br />

<strong>the</strong> protected core <strong>of</strong> <strong>the</strong> ecosystem (Serneels, Said <strong>and</strong> Lambin, 2001). The<br />

ecosystem is made up <strong>of</strong> protected l<strong>and</strong> (Serengeti National Park, Ngorongoro<br />

Conservation Area (NCA) <strong>and</strong> several Game Controlled Areas in Tanzania ,<br />

<strong>and</strong> Maasai Mara National Reserve in Kenya), surrounded by semi -arid<br />

rangel<strong>and</strong>s that are largely inhabited by Maasai agropastoralists. L<strong>and</strong> cover<br />

changes leading to a contraction <strong>of</strong> <strong>the</strong> rangel<strong>and</strong>s were most pronounced<br />

in <strong>the</strong> Kenyan part <strong>of</strong> <strong>the</strong> ecosystem, surrounding <strong>the</strong> Maasai Mara. About<br />

45 000 ha <strong>of</strong> rangel<strong>and</strong>s were converted to large-scale mechanized farming after<br />

1975. Expansion <strong>of</strong> <strong>the</strong> wheat farms reached a maximum extent in 1997–8, at<br />

60 000 ha. By 2000, about half <strong>of</strong> <strong>the</strong> wheat fields had been ab<strong>and</strong>oned, mostly<br />

because <strong>the</strong> yields in <strong>the</strong> drier areas were too uncertain to make cultivation<br />

viable. The ab<strong>and</strong>oned areas once more became available to livestock <strong>and</strong> wildlife<br />

. Permanent settlements have spread from <strong>the</strong> north to <strong>the</strong> south in <strong>the</strong> last<br />

50 years, with significant settlement areas now on <strong>the</strong> nor<strong>the</strong>rn border <strong>of</strong> <strong>the</strong><br />

Mara Reserve (Lamprey <strong>and</strong> Waller, 1990). In <strong>the</strong> rangel<strong>and</strong>s, most attempts at


48<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

subsistence cultivation were ab<strong>and</strong>oned after a few years, due to crop destruction<br />

by wildlife <strong>and</strong> highly variable yields linked with climate variability. In<br />

<strong>the</strong> Tanzanian part <strong>of</strong> <strong>the</strong> ecosystem, l<strong>and</strong> cover changes were less pronounced.<br />

No conversion for large-scale farming occurred; most l<strong>and</strong> cover changes were<br />

ei<strong>the</strong>r expansion <strong>of</strong> smallholder cultivation or natural succession in rangel<strong>and</strong>s.<br />

Extensive areas <strong>of</strong> cultivated l<strong>and</strong> (subsistence to medium-scale agriculture)<br />

were found in <strong>the</strong> unprotected l<strong>and</strong>s, right up to <strong>the</strong> border with <strong>the</strong> protected<br />

areas west <strong>of</strong> Serengeti <strong>and</strong> sou<strong>the</strong>ast <strong>of</strong> NCA. In <strong>the</strong> NCA <strong>and</strong> <strong>the</strong> Loliondo<br />

Game Controlled Area, about 2 percent <strong>of</strong> l<strong>and</strong> cover changes were attributed<br />

to smallholder impact over <strong>the</strong> past 20 years. In <strong>the</strong> NCA, cultivation is regulated:<br />

only h<strong>and</strong>-hoe cultivation is allowed <strong>and</strong> fields are small <strong>and</strong> scattered. In<br />

<strong>the</strong> Loliondo, no such restrictions are in place, but <strong>the</strong> area is very inaccessible,<br />

so <strong>the</strong> lack <strong>of</strong> opportunities to export <strong>the</strong> crops outside <strong>the</strong> area effectively<br />

controls <strong>the</strong> extent <strong>of</strong> cultivation.<br />

The conversion <strong>of</strong> rangel<strong>and</strong>s to agriculture has had a serious impact on <strong>the</strong><br />

wildebeest population in <strong>the</strong> Kenyan part <strong>of</strong> <strong>the</strong> Serengeti-Mara ecosystem .<br />

The population declined drastically over <strong>the</strong> past twenty years <strong>and</strong> is currently<br />

fluctuating around an estimated population <strong>of</strong> 31 300 animals, which is about<br />

25 percent <strong>of</strong> <strong>the</strong> population size at <strong>the</strong> end <strong>of</strong> <strong>the</strong> 1970s. Fluctuations in <strong>the</strong><br />

wildebeest population in <strong>the</strong> Kenyan part <strong>of</strong> <strong>the</strong> Serengeti-Mara ecosystem,<br />

over <strong>the</strong> last decades, have been correlated strongly with <strong>the</strong> availability<br />

<strong>of</strong> forage during <strong>the</strong> dry <strong>and</strong> <strong>the</strong> wet seasons (Serneels <strong>and</strong> Lambin, 2001).<br />

Expansion <strong>of</strong> large-scale mechanized wheat farming in Kenya since <strong>the</strong> early<br />

1980s has drastically reduced <strong>the</strong> wildebeest wet-season range, forcing <strong>the</strong><br />

wildebeest population to use drier rangel<strong>and</strong>s or to move to areas where<br />

competition with cattle is greater. The expansion <strong>of</strong> <strong>the</strong> farming area has not<br />

influenced <strong>the</strong> size <strong>of</strong> <strong>the</strong> total cattle population in <strong>the</strong> Kenyan part <strong>of</strong> <strong>the</strong><br />

study area, nor its spatial distribution. The much larger migratory wildebeest<br />

population <strong>of</strong> <strong>the</strong> Serengeti, in Tanzania , did not decline at <strong>the</strong> same time as<br />

<strong>the</strong> Kenyan population but is also regulated by food supply in <strong>the</strong> dry season<br />

(Mduma, Sinclair <strong>and</strong> Hilborn, 1999). Around <strong>the</strong> Serengeti, in Tanzania, l<strong>and</strong><br />

use changes are much less widespread, occur at a lower rate <strong>and</strong> affect a much<br />

smaller area compared with <strong>the</strong> Kenyan part <strong>of</strong> <strong>the</strong> ecosystem. Moreover,<br />

l<strong>and</strong> use changes around <strong>the</strong> Serengeti have taken place away from <strong>the</strong> main<br />

migration routes <strong>of</strong> wildebeest.<br />

Protected areas <strong>and</strong> local l<strong>and</strong> use: source <strong>of</strong> conflict in Tanzania<br />

Savannah ecosystems are well represented in African protected area networks<br />

(Davis, Heywood <strong>and</strong> Hamilton, 1994). In Tanzania , very large tracts <strong>of</strong><br />

savannah have been set aside for conservation , partly because <strong>the</strong>se rangel<strong>and</strong>s<br />

support <strong>the</strong> most diverse assemblage <strong>of</strong> migrating ungulates on earth (Sinclair,<br />

1995). However, <strong>the</strong>re are few resources to manage <strong>the</strong>se conservation areas<br />

effectively <strong>and</strong> <strong>the</strong> rural populations surrounding <strong>the</strong>m are among <strong>the</strong> poorest


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 49<br />

in <strong>the</strong> world. Thus, conflict <strong>and</strong> complementarity between conservation <strong>and</strong><br />

development have become major issues in Ngorongoro (Homewood <strong>and</strong><br />

Rodgers, 1991), Mkomazi (Rogers et al., 1999), Selous (Neumann, 1997) <strong>and</strong><br />

Tarangire (Igoe <strong>and</strong> Brockington, 1999).<br />

Mkomazi Game Reserve in Nor<strong>the</strong>rn Tanzania is a 3 200 km 2 savannah<br />

area stretching from <strong>the</strong> Kenya-Tanzania border to <strong>the</strong> nor<strong>the</strong>astern slopes <strong>of</strong><br />

<strong>the</strong> Pare <strong>and</strong> Usambara mountains. Mkomazi lies within <strong>the</strong> Somali-Maasai<br />

regional centre <strong>of</strong> endemism (RCE) (White, 1983), where <strong>the</strong> dominant vegetation<br />

is Acacia -Commiphora bush , woodl<strong>and</strong> <strong>and</strong> wooded grassl<strong>and</strong> . Mkomazi<br />

borders <strong>the</strong> Afromontane RCE, with <strong>the</strong> lowl<strong>and</strong> <strong>and</strong> montane forests <strong>of</strong> <strong>the</strong><br />

Usambaras recognized as an outst<strong>and</strong>ing centre <strong>of</strong> plant diversity (Davis et al.,<br />

1994), an endemic bird area (Stattersfield et al., 1998) <strong>and</strong> a centre <strong>of</strong> endemism<br />

for many o<strong>the</strong>r taxa (Rodgers <strong>and</strong> Homewood, 1982). This “dry border” ecotone<br />

position means that Mkomazi species richness may be enhanced not only<br />

by <strong>the</strong> presence <strong>of</strong> species primarily associated with <strong>the</strong> adjacent ecosystems ,<br />

but also by divergent selection driving <strong>the</strong> evolution <strong>of</strong> new forms (cf. Smith<br />

et al., 1997). This diversity makes Mkomazi particularly valuable to opportunistic<br />

l<strong>and</strong> users like pastoralists, but also for conservation <strong>of</strong> its rich species<br />

<strong>and</strong> l<strong>and</strong>scape diversity. Based on <strong>the</strong> perceived species richness <strong>and</strong> concerns<br />

by <strong>the</strong> conservationists about <strong>the</strong> impacts on Mkomazi’s vegetation <strong>of</strong> large<br />

numbers <strong>of</strong> cattle grazing in <strong>the</strong> western part <strong>of</strong> <strong>the</strong> reserve <strong>and</strong> large mammal<br />

populations, <strong>the</strong> resident pastoralists were evicted from <strong>the</strong> park in 1988 <strong>and</strong><br />

use <strong>of</strong> its resources by <strong>the</strong> neighbouring communities was prohibited.<br />

Mkomazi has been widely presented as undergoing ecological degradation<br />

prior to <strong>the</strong> 1988 evictions <strong>and</strong> recovery since <strong>the</strong>n (e.g. Mangubuli, 1991;<br />

Watson, 1991). Data to confirm or refute that claim are as yet unavailable<br />

(Homewood <strong>and</strong> Brockington, 1999), but eviction was viewed as a risk -averse<br />

decision from a conservation point <strong>of</strong> view. However, from a pastoral point<br />

<strong>of</strong> view, <strong>the</strong> eviction did have serious impacts on <strong>the</strong> livelihoods <strong>of</strong> those who<br />

were evicted. Besides pastoral people, a large number <strong>of</strong> non-pastoral people<br />

also depended on <strong>the</strong> reserve for <strong>the</strong>ir livelihoods <strong>and</strong> used <strong>the</strong> reserve for<br />

beekeeping, collection <strong>of</strong> wild foods to supplement <strong>the</strong>ir diets or for sale at<br />

<strong>the</strong> local markets, <strong>and</strong> collection <strong>of</strong> fuelwood. Since <strong>the</strong> eviction, an estimated<br />

25 percent <strong>of</strong> <strong>the</strong> livestock population have been restricted to a narrow <strong>and</strong><br />

insufficient grazing area between Mkomazi reserve <strong>and</strong> <strong>the</strong> mountains bordering<br />

it to <strong>the</strong> south. O<strong>the</strong>rs have moved away from <strong>the</strong> reserve onto <strong>the</strong> increasingly<br />

crowded rangel<strong>and</strong>s. Options for long-distance migration were greatly<br />

reduced, as <strong>the</strong> evictions occurred three years after <strong>the</strong> proliferation <strong>of</strong> largescale<br />

commercial agriculture in nor<strong>the</strong>astern Tanzania (Igoe <strong>and</strong> Brockington,<br />

1999).<br />

The impact <strong>of</strong> <strong>the</strong> evictions from Tarangire National Park, north-central<br />

Tanzania , shortly after its creation in 1968 was not felt immediately. There<br />

was no large-scale farming in <strong>the</strong> region at that time <strong>and</strong> pastoral Maasai were


50<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

able to develop alternative, if less optimal, subsistence strategies. The effects<br />

became visible more than 20 years later, during <strong>the</strong> 1993/4 drought . By this<br />

time, some <strong>of</strong> <strong>the</strong> best wet-season pastures in Simanjiro District had been lost<br />

to large-scale commercial agriculture <strong>and</strong> more livestock were forced onto <strong>the</strong><br />

dry -season grazing grounds in <strong>the</strong> early grazing season, depleting <strong>the</strong> season’s<br />

grass growth sooner. The Maasai <strong>of</strong> Simanjiro found previous drought-coping<br />

strategies precluded by loss <strong>of</strong> access to drought reserve areas which had been<br />

enclosed inside <strong>the</strong> Tarangire National Park or allocated to large-scale commercial<br />

farms (Igoe <strong>and</strong> Brockington, 1999).<br />

The examples <strong>of</strong> Mkomazi <strong>and</strong> Tarangire clearly point to costs <strong>and</strong> benefits<br />

in conservation decisions, with conflicts likely to intensify as human needs<br />

grow.<br />

Control <strong>of</strong> <strong>the</strong> tsetse fly <strong>and</strong> evolution <strong>of</strong> a subhumid-grassl<strong>and</strong> in<br />

southwestern Ethiopia : Ghibe Valley<br />

Wetter grassl<strong>and</strong>s <strong>and</strong> woodl<strong>and</strong>s have also evolved rapidly in <strong>the</strong> last century.<br />

One cause <strong>of</strong> that change is <strong>the</strong> control <strong>of</strong> trypanosomiasis, <strong>the</strong> disease<br />

transmitted to livestock <strong>and</strong> people by <strong>the</strong> tsetse fly, which allowed farmers to<br />

use animal traction more extensively (greater numbers <strong>and</strong> more healthy oxen)<br />

<strong>and</strong> thus to exp<strong>and</strong> <strong>the</strong> amount <strong>of</strong> l<strong>and</strong> <strong>the</strong>y cultivated at <strong>the</strong> household level<br />

(Jordan , 1986). Despite <strong>the</strong> logic <strong>of</strong> this progression, Ghibe Valley in Ethiopia<br />

is one <strong>of</strong> <strong>the</strong> few places in Africa where <strong>the</strong>se changes have been seen clearly<br />

(Reid, 1999; Bourn et al., 2001)<br />

Ghibe Valley is located about 180 km to <strong>the</strong> southwest <strong>of</strong> Addis Ababa,<br />

where <strong>the</strong> main road to Jimma descends from <strong>the</strong> Ethiopian highl<strong>and</strong> massif.<br />

Tsetse flies were first controlled in this area in 1991, using pesticide-drenched targets<br />

<strong>and</strong> pesticide poured on <strong>the</strong> cattle <strong>the</strong>mselves. Within this l<strong>and</strong>scape in 1993,<br />

just after <strong>the</strong> control , <strong>the</strong> majority <strong>of</strong> <strong>the</strong> arable l<strong>and</strong> was wooded grassl<strong>and</strong> used<br />

by wildlife <strong>and</strong> <strong>the</strong> few livestock herded by agropastoral peoples. Smallholder<br />

farms covered about a quarter <strong>of</strong> <strong>the</strong> arable l<strong>and</strong>, while large-holder farms covered<br />

less than 1 percent (Reid et al., 1997). About 90 percent <strong>of</strong> this l<strong>and</strong>scape<br />

supports soils that are moderately to highly suitable for agriculture. Smallholder<br />

farmers grow a diversity <strong>of</strong> crop types , including maize, sorghum, tef, noug or<br />

niger seed (Guizotia abyssinica), false banana (Ensete ventricosum), groundnuts,<br />

wheat, beans <strong>and</strong> hot peppers, while large-holders grow a number <strong>of</strong> crops for<br />

market (citrus, onions, maize, spices). People use <strong>the</strong> large uncultivated tracts<br />

<strong>of</strong> grassl<strong>and</strong> <strong>and</strong> woodl<strong>and</strong> for settlements, hunting, wild plant ga<strong>the</strong>ring, beekeeping,<br />

livestock grazing , firewood collection, charcoal making <strong>and</strong> woodlot<br />

cultivation .<br />

Rapid l<strong>and</strong> use <strong>and</strong> l<strong>and</strong> cover change was caused by <strong>the</strong> combined effects<br />

<strong>of</strong> drought <strong>and</strong> migration, changes in settlement <strong>and</strong> l<strong>and</strong> tenure policy, <strong>and</strong><br />

changes in <strong>the</strong> severity <strong>of</strong> trypanosomiasis (Reid et al., 2000b; Reid, Thornton<br />

<strong>and</strong> Kruska, 2001). Each cause affected <strong>the</strong> location <strong>and</strong> pattern <strong>of</strong> l<strong>and</strong> use


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 51<br />

<strong>and</strong> l<strong>and</strong> cover in different ways. Previous to <strong>the</strong> control , a strong increase in<br />

<strong>the</strong> severity <strong>of</strong> <strong>the</strong> trypanosomiasis caused massive loss <strong>of</strong> livestock, farmers<br />

were unable to plough as effectively <strong>and</strong> <strong>the</strong> area <strong>of</strong> cropl<strong>and</strong> contracted by<br />

25 percent. Changes after tsetse control were slow to appear on <strong>the</strong> l<strong>and</strong> itself,<br />

with nearly a five-year delay in impact on l<strong>and</strong> use, although <strong>the</strong>re was a more<br />

immediate impact on livestock health <strong>and</strong> populations. Changes were bi-directional<br />

<strong>and</strong> varied in speed, with both intensification <strong>and</strong> dis-intensification<br />

(Conelly, 1994; Snyder, 1996) occurring within <strong>the</strong> same l<strong>and</strong>scape , sometimes<br />

slowly <strong>and</strong> sometimes rapidly.<br />

These changes in l<strong>and</strong> use caused pr<strong>of</strong>ound changes in ecological properties<br />

<strong>and</strong> <strong>the</strong> structure <strong>of</strong> <strong>the</strong> valley’s ecosystems (Reid et al., 2000b). When l<strong>and</strong> use<br />

exp<strong>and</strong>ed, large areas <strong>of</strong> woodl<strong>and</strong> were cleared for cultivation <strong>and</strong> firewood<br />

became more scarce. As human populations grew, plants with medicinal value<br />

became more rare <strong>and</strong> <strong>the</strong> large herds <strong>of</strong> grazing herbivores were decimated.<br />

Most <strong>of</strong> <strong>the</strong> biodiversity in <strong>the</strong> valley is limited to <strong>the</strong> narrow ribbons <strong>of</strong> woodl<strong>and</strong><br />

along <strong>the</strong> rivers; it is <strong>the</strong>se rich woodl<strong>and</strong>s that farmers began to clear after<br />

successful tsetse control (Reid et al., 1997; Wilson et al., 1997).<br />

CURRENT RESEARCH IN PASTORAL SYSTEMS OF EASTERN AFRICA<br />

Management <strong>of</strong> grassl<strong>and</strong>s<br />

Management regimes for <strong>the</strong> grassl<strong>and</strong>s <strong>of</strong> eastern Africa generally fall into<br />

three types : (1) state-managed for tourism <strong>and</strong> ranching; (2) commercial use<br />

for livestock or crop production; or (3) traditional management by pastoral<br />

<strong>and</strong> agropastoral groups. Livestock production, particularly cattle , is <strong>the</strong> major<br />

use for rangel<strong>and</strong>s, with over 100 million head <strong>of</strong> livestock in <strong>the</strong> rangel<strong>and</strong>s<br />

<strong>of</strong> eastern Africa (Herlocker, 1999). There is also a growing market for meat<br />

from wildlife , which is being met through commercial ranching <strong>and</strong> culling in<br />

<strong>the</strong> region. Grassl<strong>and</strong> management is linked to use by livestock <strong>and</strong> wildlife,<br />

<strong>and</strong> <strong>the</strong>re is <strong>of</strong>ten conflict between <strong>the</strong>ir exploitation for commercial income<br />

generation <strong>and</strong> <strong>the</strong> more sustainable management regimes <strong>of</strong> traditional groups.<br />

Wildlife -based tourism is <strong>of</strong> particular importance for generation <strong>of</strong> state, private<br />

<strong>and</strong> community income in <strong>the</strong> rangel<strong>and</strong>s <strong>of</strong> Kenya (Plate 2.8) <strong>and</strong> Tanzania<br />

(Myers, 1972) <strong>and</strong> to a lesser extent in Ug<strong>and</strong>a <strong>and</strong> Ethiopia. Recent efforts to<br />

privatize l<strong>and</strong> <strong>and</strong> introduce more livestock are also changing <strong>the</strong> way people<br />

interact with wildlife.<br />

Government development projects have focused on improving <strong>the</strong> productivity<br />

<strong>of</strong> <strong>the</strong> rangel<strong>and</strong>s <strong>and</strong> increased livestock production from common<br />

property resources . The <strong>World</strong> Bank has sponsored several projects on rangel<strong>and</strong><br />

management , including in Somalia , Kenya <strong>and</strong> Ethiopia. Earlier projects<br />

focused on increasing <strong>the</strong> productivity <strong>of</strong> rangel<strong>and</strong>s for livestock production<br />

<strong>and</strong> several included formation <strong>of</strong> pastoral associations, which dealt with grazing<br />

rights <strong>and</strong> policies. These projects had disappointing results due to <strong>the</strong><br />

parastatal organizational form, inappropriate technologies <strong>and</strong> poor apprecia-


52<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 2.8<br />

Acacia bushl<strong>and</strong> near Nakuru, Kenya, supports endangered Rothchild’s giraffe.<br />

tion <strong>of</strong> traditional systems <strong>and</strong> people. Only recently have issues <strong>of</strong> integrated<br />

natural resource management <strong>and</strong> full involvement <strong>of</strong> stakeholders been given<br />

attention, although <strong>the</strong>re remain problems in reaching <strong>the</strong> local people through<br />

public sector organizations (de Haan <strong>and</strong> Gilles, 1994).<br />

Traditional management systems by pastoralists recognized <strong>the</strong> need for<br />

controlled access to conserve <strong>the</strong> biodiversity <strong>and</strong> allow <strong>the</strong> rangel<strong>and</strong> to recover.<br />

Traditional grazing systems are more effective for sustainable resource use<br />

<strong>and</strong> maintenance <strong>of</strong> rangel<strong>and</strong> condition (Pratt <strong>and</strong> Gwynne, 1977). However,<br />

<strong>the</strong> traditional systems are under threat from increased livestock populations<br />

<strong>and</strong> decreased grazing l<strong>and</strong>s , resulting in increased grazing pressure . This is<br />

already being recognized by Boran pastoralists in Ethiopia, who perceive<br />

that <strong>the</strong> condition <strong>of</strong> <strong>the</strong> rangel<strong>and</strong>s is poor compared to 30 to 40 years ago<br />

(Angassa <strong>and</strong> Beyene, 2003) <strong>and</strong> consider <strong>the</strong> rangel<strong>and</strong>s degraded <strong>and</strong> <strong>the</strong>ir<br />

livestock production declining.<br />

Annual variation in amount <strong>and</strong> distribution <strong>of</strong> rainfall , toge<strong>the</strong>r with grazing<br />

, fire <strong>and</strong> human activities, results in wide variation in grassl<strong>and</strong> productivity<br />

(Walker, 1993). Rangel<strong>and</strong> ecosystems are very resilient <strong>and</strong> recover well<br />

when <strong>the</strong>re is sufficient rainfall <strong>and</strong> controlled use <strong>of</strong> <strong>the</strong> resources . Range<br />

condition is dependent on both <strong>the</strong> grazing system , considered as timing <strong>and</strong><br />

frequency <strong>of</strong> grazing, <strong>and</strong> grazing intensity, defined as <strong>the</strong> cumulative effects<br />

grazing animals have on rangel<strong>and</strong>s during a particular period (Holechek et<br />

al., 1998). Grazing intensity is closely associated with livestock productivity,<br />

trends in ecological conditions, forage production, catchment status <strong>and</strong> soil<br />

C.J. WILSON


C.J. WILSON<br />

The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 53<br />

Plate 2.9<br />

Heavily grazed grassl<strong>and</strong> in <strong>the</strong> highl<strong>and</strong>s near Bule, Ethiopia.<br />

stability. It is considered as a primary tool in range management , <strong>and</strong> flexibility<br />

<strong>of</strong> grazing intensity is critical to rangel<strong>and</strong> ecosystem health. Grazing intensity<br />

has a major impact on range condition (Plate 2.9). In a recent study in Ethiopia,<br />

range condition, based on <strong>the</strong> herbaceous layer, basal cover, litter cover, relative<br />

number <strong>of</strong> seedlings, age distribution <strong>of</strong> grasses, soil erosion <strong>and</strong> soil compaction,<br />

was higher in lightly grazed areas in <strong>the</strong> Rift Valley than in <strong>the</strong> heavily<br />

grazed communal l<strong>and</strong>s (Sisay <strong>and</strong> Baars, 2002). In Serengeti <strong>and</strong> Maasai Mara,<br />

grazing was found to stimulate net primary productivity at most locations,<br />

with maximum stimulation at intermediate grazing intensities <strong>and</strong> declines at<br />

high levels <strong>of</strong> grazing. Stimulation was dependent upon soil moisture status at<br />

<strong>the</strong> time <strong>of</strong> grazing (McNaughton, 1985).<br />

There are many examples in <strong>the</strong> literature <strong>of</strong> <strong>the</strong> impact <strong>of</strong> management on<br />

species composition <strong>and</strong> diversity (Herlocker, 1999). In a study in <strong>the</strong> rangel<strong>and</strong>s<br />

<strong>of</strong> sou<strong>the</strong>rn Ethiopia, perennial grasses were relatively resilient in terms<br />

<strong>of</strong> cover <strong>and</strong> productivity in response to grazing , while continuous grazing<br />

encouraged forbs with lower grazing value for cattle (Coppock, 1994). Grazing<br />

affects species diversity <strong>and</strong> richness in grassl<strong>and</strong>s (Oba, Vetaas <strong>and</strong> Stenseth,<br />

2001). Optimal conservation <strong>of</strong> plant species richness was found at intermediate<br />

levels <strong>of</strong> biomass production <strong>and</strong> was found to decline if biomass increased<br />

in ungrazed areas <strong>of</strong> arid -zone grazing l<strong>and</strong>s in nor<strong>the</strong>rn Kenya. These intermediate<br />

levels can be achieved by manipulating management <strong>and</strong> grazing<br />

pressure , although <strong>the</strong>re will be seasonal fluctuations due to environment. In<br />

<strong>the</strong> Serengeti Plains in Tanzania , elimination <strong>of</strong> grazing led to dominance by


54<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

tall vegetatively propagated grass species, while <strong>the</strong> short sexually reproduced<br />

species disappeared (Belsky, 1986). This implies that even though <strong>the</strong> greatest<br />

number <strong>of</strong> species are found at intermediate grazing intensities, some species<br />

are always lost when ungrazed pastures are grazed. Although <strong>the</strong>re are more<br />

species at intermediate levels <strong>of</strong> grazing, it is possible that any grazing negatively<br />

affects rare plant species that are sensitive to grazing.<br />

Desertification : driven by climate or overgrazing by livestock?<br />

One <strong>of</strong> <strong>the</strong> most controversial <strong>and</strong> debated aspects <strong>of</strong> research about pastoral<br />

systems is <strong>the</strong> existence <strong>and</strong> extent <strong>of</strong> overgrazing, desertification <strong>and</strong> l<strong>and</strong><br />

degradation 4 in pastoral l<strong>and</strong>s, particularly in Africa. Global assessments <strong>of</strong><br />

dryl<strong>and</strong>s maintain that much <strong>of</strong> <strong>the</strong> earth’s l<strong>and</strong> surface is degraded (GLASOD,<br />

1990) <strong>and</strong> that livestock are <strong>the</strong> principal global cause <strong>of</strong> desertification<br />

(Mabbutt, 1984). Analysts suggest that African pastures are 50 percent more<br />

degraded than those in Asia or Latin America (GLASOD, 1990). However,<br />

o<strong>the</strong>r analyses show that livestock numbers only exceed likely carrying<br />

capacities <strong>of</strong> arid <strong>and</strong> semi -arid rangel<strong>and</strong>s in about 3–19 percent 5 <strong>of</strong> Africa<br />

(Ellis et al., 1999). In addition, <strong>the</strong>re is no sustained evidence for a reduction<br />

in productivity , as measured by no change in <strong>the</strong> water-use efficiency <strong>of</strong> <strong>the</strong><br />

Sahelian vegetation over 16 years, suggesting that <strong>the</strong> extent <strong>of</strong> <strong>the</strong> Sahara<br />

is more strongly influenced by drought than grazing (Tucker, Dregne <strong>and</strong><br />

Newcomb, 1991; Nicholson, Tucker <strong>and</strong> Ba, 1998).<br />

However, <strong>the</strong>se broad assessments are only correlative <strong>and</strong> can not assess<br />

cause <strong>and</strong> effect rigorously, <strong>and</strong> can not measure <strong>the</strong> relative impacts <strong>of</strong> different<br />

causative agents. Certainly, at more local scales, livestock impacts are<br />

highly visible <strong>and</strong> persistent around towns, water points <strong>and</strong> along cattle<br />

tracks (e.g. Georgiadis, 1987; Hiernaux, 1996). More illuminating – but much<br />

more difficult to acquire – are two types <strong>of</strong> evidence: (1) remote sensing studies<br />

at <strong>the</strong> l<strong>and</strong>scape scale, tracking <strong>the</strong> extent <strong>of</strong> degradation or desertification<br />

<strong>and</strong> <strong>of</strong> sufficient duration to cover drought <strong>and</strong> non-drought periods; <strong>and</strong><br />

4 Definitions <strong>of</strong> desertification, overgrazing <strong>and</strong> degradation are controversial <strong>and</strong><br />

problematic. We use <strong>the</strong> term desertification here to refer to <strong>the</strong> concepts used by <strong>the</strong> cited<br />

global assessment (GLASOD, 1990). We use degradation to mean an irreversible change in<br />

ecosystem state or function. We agree with de Queiroz (1993) that “degradation” has been<br />

defined relative to human management objectives <strong>and</strong> thus is relative; for example, a change<br />

from grassl<strong>and</strong> to bushl<strong>and</strong> is “degradation” to a cattle -keeper but may be “aggradation”<br />

from <strong>the</strong> perspective <strong>of</strong> carbon sequestration . We would prefer a set <strong>of</strong> quantitative measures<br />

that can assess <strong>the</strong> state <strong>of</strong> a particular piece <strong>of</strong> l<strong>and</strong> <strong>and</strong> be used by l<strong>and</strong> managers to assess<br />

<strong>the</strong> desirability <strong>of</strong> different changes from <strong>the</strong> context <strong>of</strong> <strong>the</strong>ir own management objectives.<br />

We define overgrazing here as any level <strong>of</strong> herbivore grazing that induces ei<strong>the</strong>r temporary<br />

or permanent changes in <strong>the</strong> species composition or function <strong>of</strong> a grassl<strong>and</strong>.<br />

5 Carrying capacity is exceeded in 19% <strong>of</strong> areas receiving 0–200 mm rainfall per annum, 15%<br />

<strong>of</strong> <strong>the</strong> 200–400 mm zone, 3% <strong>of</strong> <strong>the</strong> 400–600 mm zone <strong>and</strong> 8.5% <strong>of</strong> <strong>the</strong> 600–800 mm zone<br />

(Ellis et al., 1999).


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 55<br />

(2) ei<strong>the</strong>r long-term experiments or observational studies at <strong>the</strong> pasture scale<br />

that assess <strong>the</strong> relative impacts <strong>of</strong> drought, livestock <strong>and</strong> o<strong>the</strong>r agents on ecosystem<br />

dynamics . Most <strong>of</strong> <strong>the</strong> research on l<strong>and</strong> degradation <strong>and</strong> desertification<br />

in Africa has been focused on <strong>the</strong> Sahel , which has been intensively studied<br />

since <strong>the</strong> first droughts in <strong>the</strong> 1970s. Some l<strong>and</strong>scape-scale studies based on<br />

a combination <strong>of</strong> fine-resolution satellite data <strong>and</strong> field measurements have<br />

been carried out in different parts <strong>of</strong> Africa <strong>and</strong> demonstrated <strong>the</strong> existence<br />

<strong>of</strong> local-scale degradation <strong>of</strong> rangel<strong>and</strong>s in Ferlo, Senegal (Diouf <strong>and</strong> Lambin,<br />

2001) <strong>and</strong> Turkana, Kenya, where highly affected areas covered only 5 percent<br />

<strong>of</strong> <strong>the</strong> l<strong>and</strong> surface (Reid <strong>and</strong> Ellis, 1995). The importance <strong>of</strong> studying l<strong>and</strong><br />

degradation <strong>and</strong> desertification problems over a sufficiently long period is<br />

illustrated by studies conducted in Burkina Faso by Lindqvist <strong>and</strong> Tengberg<br />

(1993) <strong>and</strong> later by Rasmussen, Fog <strong>and</strong> Madsen (2001). The first group <strong>of</strong><br />

scientists studied <strong>the</strong> amount <strong>of</strong> woody vegetation cover in three sites in<br />

nor<strong>the</strong>rn Burkina Faso (1955–89). They found that important loss in woody<br />

vegetation cover occurred during <strong>the</strong> first <strong>of</strong> a series <strong>of</strong> droughts that started<br />

in <strong>the</strong> late 1960s, when large areas <strong>of</strong> bare soil developed. The authors found<br />

little evidence <strong>of</strong> vegetation recovery until 1989, despite increasing rainfall since<br />

1985. Rasmussen, Fog <strong>and</strong> Madsen (2001) revisited <strong>the</strong> area, adding 10 years <strong>of</strong><br />

satellite data. They found a decrease in albedo <strong>and</strong> thus increase in vegetation<br />

cover over <strong>the</strong> period 1986–1996, which was confirmed by fieldwork, thus<br />

showing <strong>the</strong> recovery <strong>of</strong> vegetation after drought. Interviews with local people<br />

indicated that <strong>the</strong> species composition <strong>of</strong> <strong>the</strong> regenerating herbaceous vegetation<br />

has changed considerably since <strong>the</strong> late 1970s. L<strong>and</strong> degradation caused by<br />

heavy grazing pressure was mostly found in <strong>the</strong> proximity <strong>of</strong> important water<br />

resources , which probably cover only a small proportion <strong>of</strong> <strong>the</strong> l<strong>and</strong>scape in<br />

total. Schlesinger <strong>and</strong> Gramenopoulos (1996) also used <strong>the</strong> amount <strong>of</strong> woody<br />

vegetation cover as an indicator <strong>of</strong> desertification in western Sudan, but studied<br />

sites that were devoid <strong>of</strong> human use over <strong>the</strong> period 1943–1994. They analysed<br />

a time series <strong>of</strong> aerial photographs <strong>and</strong> Corona satellite images <strong>and</strong> did not find<br />

a significant decline in woody vegetation for <strong>the</strong> study period, despite several<br />

droughts having occurred during that period. Thus, at least in this area, <strong>the</strong>y<br />

showed that <strong>the</strong> Sahara is not exp<strong>and</strong>ing <strong>and</strong> that drought had little effect on<br />

woody vegetation. In ano<strong>the</strong>r part <strong>of</strong> <strong>the</strong> Sudan, <strong>the</strong> concentration <strong>of</strong> livestock<br />

around water points <strong>and</strong> settlements led to local loss <strong>of</strong> vegetative cover <strong>and</strong><br />

accelerated erosion (Ayoub, 1998). In contrast, o<strong>the</strong>rs have found that heavy<br />

livestock grazing around pastoral settlements in arid areas had minor impacts<br />

on woody vegetation <strong>and</strong> biodiversity , with impacts confined within <strong>the</strong> settlements<br />

<strong>the</strong>mselves (Sullivan, 1999). Woody vegetation can replace palatable<br />

grass species in heavily grazed areas, caused by grazing pressure ra<strong>the</strong>r than<br />

climate (Skarpe, 1990; Perkins, 1991).<br />

At <strong>the</strong> pasture or field level, <strong>the</strong> picture is more complex. Generally, livestock<br />

grazing , browsing <strong>and</strong> trampling causes loss <strong>of</strong> vegetation , competition


56<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

with wildlife <strong>and</strong> sometimes a change in soils when use is prolonged <strong>and</strong> heavy.<br />

The impacts depend to some degree on <strong>the</strong> level <strong>and</strong> variability <strong>of</strong> rainfall<br />

(Ellis <strong>and</strong> Swift, 1988). In areas <strong>of</strong> sou<strong>the</strong>rn Ethiopia with more <strong>and</strong> reliable<br />

rainfall supporting perennial vegetation (an equilibrium grazing system ), <strong>the</strong><br />

impacts <strong>of</strong> grazing in one season can reduce vegetative cover <strong>and</strong> production<br />

in <strong>the</strong> next (Coppock, 1994). In systems on <strong>the</strong> edge <strong>of</strong> perennial grass production,<br />

heavy grazing, especially in combination with drought , can reduce<br />

vegetative cover <strong>and</strong> production, even during subsequent wet years when more<br />

lightly grazed areas recover fully (de Queiroz, 1993). In systems with low <strong>and</strong><br />

erratic rainfall (non-equilibrium systems), heavy grazing may (Milchunas <strong>and</strong><br />

Laurenroth, 1993) or may not (Hiernaux, 1996) strongly influence production<br />

in subsequent seasons. Heavy grazing in annual grassl<strong>and</strong>s changes <strong>the</strong> species<br />

composition <strong>of</strong> grassl<strong>and</strong> vegetation, with more species in areas protected from<br />

grazing <strong>and</strong> fewer in heavily grazed areas (Hiernaux, 1998).<br />

The nature <strong>of</strong> interrelationships <strong>and</strong> thresholds between biophysical,<br />

socio-economic, institutional <strong>and</strong> policy factors at different spatial scales <strong>and</strong><br />

temporal dimensions influencing l<strong>and</strong> degradation <strong>and</strong> desertification are<br />

still poorly understood. A recent initiative on l<strong>and</strong> degradation assessment<br />

in dryl<strong>and</strong>s (LADA project), executed by FAO, responds to <strong>the</strong> need for an<br />

accurate assessment <strong>of</strong> l<strong>and</strong> degradation in dryl<strong>and</strong>s at a flexible scale <strong>and</strong> to<br />

streng<strong>the</strong>n support to plan actions <strong>and</strong> investments to reverse l<strong>and</strong> degradation,<br />

improve socio-economic livelihoods, conserve dryl<strong>and</strong> ecosystems <strong>and</strong> <strong>the</strong>ir<br />

unique biological diversity (see: http:/www.fao.org/ag/agl/agll/lada/home.<br />

stm). Besides developing a set <strong>of</strong> tools <strong>and</strong> methods to assess <strong>and</strong> quantify<br />

<strong>the</strong> nature, extent , severity <strong>and</strong> impacts <strong>of</strong> l<strong>and</strong> degradation on ecosystems,<br />

catchments, river basins <strong>and</strong> carbon storage in dryl<strong>and</strong>s at a range <strong>of</strong> spatial<br />

<strong>and</strong> temporal scales, <strong>the</strong> project also aims to build national, regional <strong>and</strong> global<br />

assessment capacities to enable <strong>the</strong> design <strong>and</strong> planning <strong>of</strong> interventions to<br />

mitigate l<strong>and</strong> degradation <strong>and</strong> establish sustainable l<strong>and</strong> use <strong>and</strong> management<br />

practices (Nachtergaele, 2002).<br />

Ano<strong>the</strong>r useful livestock evaluation tool to enhance early warning systems<br />

to detect changes in livestock condition is being developed under <strong>the</strong> USAID<br />

Global Livestock Collaborative Research Support Program (CRSP) by Texas<br />

A&M University (Corbett et al., 1998). The Livestock Early Warning System<br />

(LEWS) integrates advanced crop <strong>and</strong> grazing models , based on empirical<br />

relationships between wea<strong>the</strong>r, vegetation , regrowth potential, soil <strong>and</strong> climate<br />

dynamics , with near infra-red spectroscopy (NIRS) for faecal analysis to detect<br />

changes in diet <strong>of</strong> free ranging livestock. These changes are linked to changes<br />

in vegetation patterns <strong>and</strong> can be used to predict drought <strong>and</strong> feed shortages<br />

for livestock some 6 to 8 weeks before pastoralists begin to see changes in <strong>the</strong><br />

condition <strong>of</strong> <strong>the</strong> rangel<strong>and</strong>s <strong>and</strong> <strong>the</strong>ir livestock. This allows <strong>the</strong>m to better prepare<br />

for <strong>the</strong> coming feed shortages <strong>and</strong> nutritional crises in a timely manner by<br />

transhumance , as well as avoiding overgrazing <strong>of</strong> <strong>the</strong> rangel<strong>and</strong> resources .


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 57<br />

HOW HAVE PASTORAL ECOSYSTEMS CHANGED IN RESPONSE TO<br />

LIVESTOCK AND HUMAN-USE CHANGES?<br />

Overgrazing<br />

A discussion <strong>of</strong> <strong>the</strong> impacts <strong>of</strong> grazing is provided in <strong>the</strong> preceding section <strong>and</strong><br />

will not be considered fur<strong>the</strong>r here, but grazing is without doubt one <strong>of</strong> <strong>the</strong><br />

major forces effecting change in pastoral systems .<br />

Competition between livestock <strong>and</strong> wildlife<br />

Livestock can <strong>and</strong> do compete with several species <strong>of</strong> wildlife for forage in<br />

eastern Africa , but this may vary according to rainfall . Wildlife appear to avoid<br />

heavily grazed areas completely in arid nor<strong>the</strong>rn Kenya (De Leeuw et al.,<br />

2001), but mix more closely with livestock in semi -arid rangel<strong>and</strong>s in sou<strong>the</strong>rn<br />

Kenya (Waweru <strong>and</strong> Reid, unpub. data).<br />

Wildlife probably avoid areas close to settlements because livestock remove<br />

most <strong>of</strong> <strong>the</strong> forage. Around Samburu pastoral settlements in nor<strong>the</strong>rn Kenya,<br />

Grevy’s zebra graze away from <strong>the</strong> settlements during <strong>the</strong> day, but move close<br />

to <strong>the</strong>m during <strong>the</strong> night (Williams, 1998). Samburu build <strong>the</strong>ir settlements<br />

along riverine areas, within walking distance <strong>of</strong> streambeds where Samburu dig<br />

wells . After livestock are put into <strong>the</strong>ir corrals for <strong>the</strong> night, zebra come down<br />

to <strong>the</strong> streambeds to drink <strong>and</strong> leave by <strong>the</strong> next morning. They may also come<br />

close to <strong>the</strong> settlements at night for better predator protection as well .<br />

In <strong>the</strong> group ranches around <strong>the</strong> Maasai Mara game reserve , wildlife avoid<br />

areas very close to settlements, but cluster at intermediate distances from settlements<br />

(Reid et al., 2001). Wildlife may cluster around settlements to have<br />

access to moderately grazed grassl<strong>and</strong>s, where <strong>the</strong>ir access to energy <strong>and</strong> nutrients<br />

is very high. They may also graze close by for protection from predators .<br />

Current settlements tend to be built on areas that have been settled for a long<br />

time <strong>and</strong> contain numerous old settlement scars where nutrient enrichment in<br />

<strong>the</strong> soils below old livestock corrals can last for a century or more (Muchiru,<br />

Western <strong>and</strong> Reid, submitted).<br />

Changes in rangel<strong>and</strong> burning regimes<br />

Livestock grazing <strong>and</strong> less frequent rangel<strong>and</strong> burning can strongly affect <strong>the</strong><br />

state <strong>of</strong> <strong>the</strong> vegetation in rangel<strong>and</strong> systems . Wildlife <strong>and</strong> livestock systems, when<br />

side-by-side, <strong>of</strong>ten are <strong>of</strong> two different vegetative states: wildlife systems remain<br />

grassl<strong>and</strong>s if elephants <strong>and</strong> fire are present (e.g. Dublin, 1995), while neighbouring<br />

livestock systems are much more woody (Western, 1989). Traditional rangel<strong>and</strong><br />

burning is an essential practice to maintain <strong>the</strong> grassl<strong>and</strong> state critical to grazers,<br />

but may reduce <strong>the</strong> amount <strong>of</strong> carbon sequestered in <strong>the</strong>se ecosystems .<br />

Rangel<strong>and</strong> fragmentation <strong>and</strong> loss <strong>of</strong> wildlife habitat<br />

Fragmentation can also occur when fence lines are built to prevent <strong>the</strong> spread<br />

<strong>of</strong> disease or to prevent wildlife from foraging in enclosed pastures. This


58<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

fragmentation prevents both livestock <strong>and</strong> wildlife from reaching parts <strong>of</strong><br />

<strong>the</strong> l<strong>and</strong>scape ; <strong>of</strong>ten <strong>the</strong> fenced parts contain key resources like swamps <strong>and</strong><br />

riverine areas. Impacts on wildlife are not entirely known, but decreases in<br />

population sizes <strong>and</strong> viability can be expected. Eventually, fragmentation can<br />

completely exclude species from an area.<br />

Impacts <strong>of</strong> expansion <strong>of</strong> cultivation <strong>and</strong> settlement<br />

Recent evidence suggests that <strong>the</strong> impact <strong>of</strong> cultivation on vegetation , wildlife<br />

<strong>and</strong> soils in pastoral ecosystems is greater than that <strong>of</strong> livestock. Expansion <strong>of</strong><br />

cultivation fragments rangel<strong>and</strong> l<strong>and</strong>scapes when farmers convert rangel<strong>and</strong> into<br />

cropl<strong>and</strong> (Hiernaux, 2000). L<strong>and</strong> degradation through crop cultivation has been<br />

documented (Niamir-Fuller, 1999), but <strong>the</strong> impacts <strong>of</strong> livestock use <strong>and</strong> crop<br />

cultivation (or any o<strong>the</strong>r l<strong>and</strong> uses) has rarely been compared. The conversion<br />

<strong>of</strong> savannah to cultivation in parts <strong>of</strong> <strong>the</strong> Mara ecosystem <strong>of</strong> Kenya, along<br />

with poaching <strong>and</strong> drought , has caused more than a 60 percent loss in resident<br />

wildlife populations in <strong>the</strong> Mara ecosystem in <strong>the</strong> last 20 years (Ottichilo et al.,<br />

2000; Homewood et al., 2001; Serneels, Said <strong>and</strong> Lambin, 2001).<br />

In non-cultivated areas, mixed livestock-wildlife systems may be more<br />

productive than ei<strong>the</strong>r wildlife-only or livestock-only systems (Western,<br />

1989). These mixed systems, when maintained at moderate livestock grazing<br />

levels, coupled with pastoral rangel<strong>and</strong> burning , may support higher levels <strong>of</strong><br />

plant <strong>and</strong> animal biodiversity than livestock-only or wildlife-only systems,<br />

analogous to <strong>the</strong> increase in plant diversity seen at <strong>the</strong> edge <strong>of</strong> wildlife reserves<br />

frequented by pastoralists <strong>and</strong> <strong>the</strong>ir livestock (Western <strong>and</strong> Gichohi, 1993).<br />

Fur<strong>the</strong>r, it is hypo<strong>the</strong>sized that when livestock populations are moderate in<br />

size or mobile , pastoralism produces significant global benefits in <strong>the</strong> form<br />

<strong>of</strong> biodiversity conservation , carbon sequestration , soil retention, soil fertility<br />

maintenance <strong>and</strong> catchment protection.<br />

Estimates <strong>of</strong> how <strong>the</strong> expansion <strong>of</strong> cultivation will affect pastoral systems<br />

over <strong>the</strong> next half century are based on scenarios <strong>of</strong> human population growth<br />

<strong>and</strong> climate change for <strong>the</strong> year 2050 from Reid et al. (2000a) <strong>and</strong> Thornton et al.<br />

(2002). Surprisingly, <strong>the</strong>se changes may bring about an absolute expansion <strong>of</strong> cultivation<br />

<strong>of</strong> only 4 percent, or a relative increase <strong>of</strong> about 15 percent (Figures 2.8<br />

<strong>and</strong> 2.9). Most <strong>of</strong> <strong>the</strong> change will probably occur around <strong>the</strong> edges <strong>of</strong> currently<br />

cultivated l<strong>and</strong> in areas with <strong>the</strong> most rainfall . Thus pastoral areas are expected to<br />

continue to contract fur<strong>the</strong>r in <strong>the</strong> future <strong>and</strong> pastoral peoples to ei<strong>the</strong>r continue<br />

to adopt agropastoralism or become restricted to drier <strong>and</strong> drier l<strong>and</strong>.<br />

Carbon sequestration<br />

It is not clear whe<strong>the</strong>r current changes in <strong>the</strong> eastern Africa n rangel<strong>and</strong>s<br />

(l<strong>and</strong> use change, overgrazing, fragmentation) are causing a net release or net<br />

accumulation <strong>of</strong> carbon, ei<strong>the</strong>r above or below ground. Expansion <strong>of</strong> cultivation<br />

into rangel<strong>and</strong>s probably strongly reduces carbon below ground, but may


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 59<br />

Libyan Arab<br />

Jamahiriya<br />

Chad<br />

Central<br />

African Republic<br />

Democratic Republic<br />

<strong>of</strong> <strong>the</strong> Congo<br />

Angola<br />

Egypt<br />

Mozambique<br />

Key<br />

Cropl<strong>and</strong> or urban<br />

Non-cropl<strong>and</strong><br />

Lakes<br />

Bounding countries<br />

International boundaries<br />

Rivers<br />

Capital cities<br />

Figure 2.8<br />

Estimated extent <strong>of</strong> cropl<strong>and</strong> <strong>and</strong> urban areas in eastern Africa in 2000. From Thornton et al.,<br />

2002.<br />

increase carbon above ground if farmers plant significant numbers <strong>of</strong> trees<br />

(<strong>the</strong> success <strong>of</strong> which depends on rainfall ). If overgrazing converts grassl<strong>and</strong> to<br />

bushl<strong>and</strong>, <strong>the</strong>n above-ground carbon will increase, but below-ground effects are<br />

unknown. In addition, rangel<strong>and</strong>s are a significant carbon sink (IPCC, 2000),<br />

but <strong>the</strong> potential <strong>of</strong> <strong>the</strong>se areas for fur<strong>the</strong>r sequestration is not clear.


60<br />

Libyan Arab<br />

Jamahiriya<br />

Chad<br />

Central<br />

African Republic<br />

Democratic Republic<br />

<strong>of</strong> <strong>the</strong> Congo<br />

Angola<br />

Zambia<br />

Egypt<br />

Mozambique<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Figure 2.9<br />

Projected extent <strong>of</strong> cropl<strong>and</strong> <strong>and</strong> urban areas in eastern Africa in 2050. From Thornton et al.,<br />

2002.<br />

Bush encroachment<br />

Although grazing effects can be difficult to disentangle from <strong>the</strong> effects<br />

<strong>of</strong> climate, those that have attempted to do so show that livestock grazing<br />

can drive grassl<strong>and</strong> systems into bushl<strong>and</strong> (Archer, Scimel <strong>and</strong> Holl<strong>and</strong>,<br />

1995). Heavy livestock grazing can convert grassl<strong>and</strong> to bushl<strong>and</strong> in eastern<br />

Key<br />

Cropl<strong>and</strong> or urban<br />

Non-cropl<strong>and</strong><br />

Lakes<br />

Bounding countries<br />

International boundaries<br />

Rivers<br />

Capital cities


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 61<br />

Africa , analogous to that observed in sou<strong>the</strong>rn Africa (Ringrose et al., 1990).<br />

Sometimes this conversion forms a monospecific st<strong>and</strong> <strong>of</strong> persistent woody<br />

species, which greatly reduces biodiversity (de Queiroz, 1993).<br />

Rehabilitation <strong>of</strong> grassl<strong>and</strong>s<br />

Rehabilitation <strong>of</strong> grassl<strong>and</strong>s usually involves use <strong>of</strong> exclosures <strong>and</strong> restricted<br />

access to allow <strong>the</strong> vegetation to recover <strong>and</strong> natural species to re-establish<br />

from <strong>the</strong> seed bank in <strong>the</strong> soil or from spread <strong>of</strong> plants by vegetative means.<br />

Grime (1979) recognized a variety <strong>of</strong> mechanisms <strong>of</strong> regeneration, with<br />

different types <strong>of</strong> revegetative strategies based on disturbance, vegetative<br />

cover <strong>and</strong> management , <strong>and</strong> proposed a model <strong>of</strong> vegetative succession <strong>and</strong><br />

vegetation dynamics . Vegetative expansion is associated with undisturbed<br />

habitats with few seedlings <strong>and</strong> relies on rhizomes <strong>and</strong> stolons <strong>of</strong> perennial<br />

grasses. Seasonal regeneration <strong>of</strong> gaps involves synchronous germination <strong>of</strong><br />

seeds from abundant seeders. Regeneration from persistent seed banks <strong>and</strong><br />

wind dispersed seeds is associated with spatially unpredictable disturbances.<br />

Woody species also have persistent seed <strong>and</strong> seedling banks but opportunities<br />

for recruitment are infrequent. Disturbances alter ecosystem processes <strong>and</strong><br />

may alter <strong>the</strong> equilibrium balance <strong>of</strong> <strong>the</strong> system (Chapin, 2003). Disturbances<br />

are usually revegetated by species <strong>of</strong> <strong>the</strong> original community <strong>and</strong> return to <strong>the</strong><br />

previous species composition within a few years (Belsky, 1986). Introduction<br />

<strong>of</strong> new species through colonization <strong>and</strong> recruitment following disturbances<br />

may result in system change, <strong>and</strong> plant traits may be important indicators to<br />

predict <strong>the</strong> consequences <strong>of</strong> global change (Chapin, 2003).<br />

Many previous attempts at rehabilitation have not been successful due to<br />

lack <strong>of</strong> consultation <strong>and</strong> involvement <strong>of</strong> local communities <strong>and</strong> <strong>the</strong>ir customs,<br />

<strong>and</strong> a perception that traditional systems need changes. Many technological<br />

interventions have been tested in <strong>the</strong> rangel<strong>and</strong>s <strong>of</strong> sou<strong>the</strong>rn Ethiopia but lack<br />

<strong>of</strong> development impact is linked to unrealistic expectations <strong>of</strong> development<br />

planners <strong>and</strong> poor appreciation <strong>of</strong> social values <strong>and</strong> production rationale <strong>of</strong><br />

pastoralists (Coppock, 1994). Community participation in rehabilitation <strong>of</strong><br />

degraded rangel<strong>and</strong>s is an important step in promoting <strong>the</strong> success <strong>of</strong> current<br />

projects. A system in Samburu District in Kenya built on local knowledge <strong>and</strong><br />

traditions to work in partnership with local people on local problems is having<br />

some success (Herlocker, 1999).<br />

Rehabilitation <strong>of</strong>fers an opportunity to sequester carbon through forestation,<br />

grass <strong>and</strong> shrub establishment. This is particularly important because pastoral<br />

l<strong>and</strong>s are so extensive <strong>and</strong> <strong>the</strong>y sequester large amounts <strong>of</strong> carbon. Rangel<strong>and</strong>s<br />

are only second to tropical forests in <strong>the</strong> amount <strong>of</strong> carbon <strong>the</strong>y sequester,<br />

although most <strong>of</strong> this sequestration is unseen below ground in rangel<strong>and</strong>s, in<br />

contrast to carbon above ground in rain forests (IPCC, 2000). Poor use <strong>of</strong> rangel<strong>and</strong>s<br />

can cause up to a 50 percent loss in soil carbon, so <strong>the</strong> potential gains from<br />

rehabilitation are substantial (Cole et al., 1989; IPCC, 2000; Reid et al., 2003).


62<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Reseeding has been tried, with limited success, using thirty-two different<br />

species <strong>of</strong> grasses in Kenya (Bogdan <strong>and</strong> Pratt, 1967), although disturbance<br />

with subsequent colonization <strong>and</strong> regrowth was found to be successful for<br />

revegetation in <strong>the</strong> Serengeti Plains <strong>of</strong> Tanzania (Belsky, 1986). Options to<br />

improve success in Kenya were identified as selection <strong>of</strong> appropriate species<br />

for <strong>the</strong> ecosystem , good quality seeds, integration <strong>of</strong> reseeding with overall<br />

l<strong>and</strong> management policy, adequate seedbed preparation, reasonable rain <strong>and</strong><br />

a complete rest from grazing during <strong>the</strong> establishment period (Bogdan <strong>and</strong><br />

Pratt, 1967). Chloris roxburghiana was difficult to establish in <strong>the</strong> south Kenya<br />

rangel<strong>and</strong>s using seeds collected from natural st<strong>and</strong>s (Mnene, W<strong>and</strong>era <strong>and</strong><br />

Lebbie, 2000). While <strong>the</strong>re is <strong>the</strong> opportunity to introduce more productive<br />

exotic species into <strong>the</strong> system, <strong>the</strong>se may <strong>of</strong>ten not be as well suited to <strong>the</strong><br />

environment as <strong>the</strong> indigenous species <strong>and</strong> may not establish well. The study<br />

by Mnene indicated that ecotypes <strong>of</strong> <strong>the</strong> same species from different areas also<br />

showed poor establishment compared with seeds collected from populations<br />

in <strong>the</strong> same area.<br />

Seed supply to support reseeding is a major constraint in eastern Africa<br />

<strong>and</strong> most species have to be collected from <strong>the</strong> wild (Bogdan <strong>and</strong> Pratt, 1967),<br />

a situation that has changed little over <strong>the</strong> past 30 years. Most succession in<br />

pastoral areas is through natural means, such as wind dispersal, although some<br />

projects are collecting seeds from natural st<strong>and</strong>s for revegetation purposes.<br />

A limited number <strong>of</strong> cultivars <strong>of</strong> Rhodes grass , setaria, coloured guinea grass<br />

(Panicum coloratum) <strong>and</strong> signal grass (Urochloa decumbens) are available in<br />

Kenya from <strong>the</strong> Kenya Seed Company. These are useful for pasture establishment<br />

but have limited use for reseeding rangel<strong>and</strong>s, except for revegetation <strong>of</strong><br />

<strong>the</strong> Hyparrhenia tall-grass region as described by Herlocker (1999) <strong>and</strong> o<strong>the</strong>r<br />

areas where <strong>the</strong>se grasses are an important part <strong>of</strong> <strong>the</strong> natural ecosystem . These<br />

species can also be used for range improvement due to <strong>the</strong>ir high palatability<br />

<strong>and</strong> nutritive value, but establishment is <strong>of</strong>ten poor due to low rainfall <strong>and</strong><br />

competition , as well as open grazing during <strong>the</strong> establishment phase (Bogdan<br />

<strong>and</strong> Pratt, 1967).<br />

PRIORITIES FOR RESEARCH AND DEVELOPMENT PROGRAMMES IN<br />

PASTORAL LANDS<br />

Some history<br />

In <strong>the</strong> late 1970s, <strong>the</strong> <strong>World</strong> Bank withdrew 98 percent <strong>of</strong> its funding to<br />

pastoral research <strong>and</strong> development because <strong>the</strong>re had been little progress<br />

in improving <strong>the</strong> intensity <strong>of</strong> production in livestock-dominated systems<br />

(de Haan, 1999). The pressure to intensify existed despite <strong>the</strong> fact that crop<br />

cultivation <strong>of</strong> ten failed in <strong>the</strong>se systems <strong>and</strong> <strong>of</strong>ten was unsustainable over<br />

<strong>the</strong> long term (Niamir-Fuller, 1999). Intensification <strong>of</strong> production has had<br />

such success in higher potential l<strong>and</strong> that policy-makers assumed it was<br />

appropriate for pastoral l<strong>and</strong>s, particularly because most policy-makers have


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 63<br />

received <strong>the</strong>ir training in cropping systems for wet areas, with no personal<br />

experience in extensive rangel<strong>and</strong>s (Horowitz <strong>and</strong> Little, 1987). It might be that<br />

<strong>the</strong> “intensification paradigm” is inappropriate for pastoral l<strong>and</strong>s <strong>and</strong> that <strong>the</strong><br />

success <strong>and</strong> sustainability <strong>of</strong> production depends on extensification ra<strong>the</strong>r than<br />

intensification, maintaining mobility <strong>and</strong> flexibility for opportunistic production<br />

(e.g. S<strong>and</strong>ford, 1983; Scoones, 1995).<br />

In addition, recent re-evaluations have recognized that livestock production<br />

is not <strong>the</strong> sole value <strong>of</strong> pastoral l<strong>and</strong>s; ra<strong>the</strong>r, <strong>the</strong> focus might be more appropriately<br />

placed on improving pastoral livelihoods <strong>and</strong> maintaining ecosystem<br />

health in <strong>the</strong>se vast l<strong>and</strong>s (de Haan, 1999; Niamir-Fuller, 1999). A consensus<br />

is emerging that pastoral lifestyles are more compatible with maintenance <strong>of</strong><br />

rangel<strong>and</strong> integrity than are o<strong>the</strong>r types <strong>of</strong> l<strong>and</strong> use.<br />

Rapidly changing systems with changing needs<br />

Pastoral systems in eastern Africa are rapidly evolving, driven by a combination<br />

<strong>of</strong> policy changes, drought , migration <strong>and</strong> human population pressure.<br />

Research <strong>and</strong> development efforts need to recognize such change <strong>and</strong> develop<br />

ways to underst<strong>and</strong> <strong>and</strong> mitigate <strong>the</strong> effects <strong>of</strong> <strong>the</strong>se changes.<br />

Focus generally on human welfare <strong>and</strong> maintaining environmental<br />

goods <strong>and</strong> services<br />

Eventually, if major constraints are removed, it may be possible for pastoralists<br />

to herd more productive livestock breeds in eastern Africa n pastoral ecosystems .<br />

Until that happens, <strong>the</strong> focus should be less on production increases per se<br />

<strong>and</strong> more on diversifying livelihoods <strong>and</strong> maintaining environmental goods<br />

<strong>and</strong> services in pastoral l<strong>and</strong>s (de Haan, 1999). There is good potential for<br />

alternative sources <strong>of</strong> income within pastoral areas from plant products (resins,<br />

medicinal plants), pastoral ecotourism <strong>and</strong> wildlife tourism (de Haan, 1999).<br />

There is some suggestion that income from ecotourism will surpass income<br />

from beef production in <strong>the</strong>se l<strong>and</strong>s in <strong>the</strong> developed world over <strong>the</strong> next<br />

decade (de Haan, 1999). Analogous to <strong>the</strong> Clean Development Mechanism <strong>of</strong><br />

<strong>the</strong> Kyoto Protocol, it eventually may be possible to pay pastoralists (through<br />

biodiversity credits, for example) for maintaining ecosystem goods <strong>and</strong> services<br />

that have global benefits.<br />

More emphasis on providing pastoral people with high quality<br />

information<br />

Recent reviews <strong>of</strong> pastoral development emphasize <strong>the</strong> probable failure <strong>of</strong><br />

many technical interventions in pastoral ecosystems . Blench (2000) suggests<br />

that <strong>the</strong> best way forward is better provision <strong>of</strong> high quality information to<br />

pastoralists, by asking <strong>the</strong> question: “What will pastoralists do if <strong>the</strong>y have<br />

access to more <strong>and</strong> better information?” Pastoralists, because <strong>of</strong> <strong>the</strong>ir mobility<br />

<strong>and</strong> loose connections to national economies, are likely to be some <strong>of</strong> <strong>the</strong>


64<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

last to have access to information in any form, particularly high technology<br />

information.<br />

Restoring pastoral access to key resources , increasing mobility <strong>and</strong><br />

flexibility, <strong>and</strong> ensuring security<br />

In many parts <strong>of</strong> eastern Africa , pastoralism is <strong>the</strong> only way to convert<br />

sunlight into food. In <strong>the</strong>se systems , new policies <strong>and</strong> management practices<br />

can still learn from <strong>the</strong> wisdom <strong>of</strong> Stephen Sanford (1983): opportunistic<br />

management <strong>of</strong> widely varying forage resources will be essential to reducing<br />

pastoral vulnerability. This means that maintenance <strong>of</strong> mobility <strong>and</strong> flexibility<br />

in grazing management strategies will remain particularly important. Ano<strong>the</strong>r<br />

issue in eastern Africa is security – pastoral livelihood will hardly improve<br />

in areas where <strong>the</strong>re is armed conflict . Asset <strong>and</strong> income diversification <strong>and</strong><br />

improved access to information <strong>and</strong> external resources will also help. Improved<br />

risk management will enable pastoralists to take action to reduce <strong>the</strong> chance <strong>of</strong><br />

losing assets, income or o<strong>the</strong>r aspects <strong>of</strong> well -being (Little et al., 2001).<br />

Addressing gaps in our knowledge about how pastoral systems<br />

work in eastern Africa<br />

We conclude this chapter with a number <strong>of</strong> questions that remain ei<strong>the</strong>r<br />

unanswered or partly answered, but that must be addressed fully in eastern<br />

Africa n rangel<strong>and</strong>s. How many pastoralists are <strong>the</strong>re in eastern Africa? How<br />

poor are pastoralists compared with people in crop-livestock systems ? What<br />

is <strong>the</strong> evidence that eastern African rangel<strong>and</strong>s are degraded (Niamir-Fuller,<br />

1999)? Does <strong>the</strong> magnitude <strong>and</strong> variability <strong>of</strong> rainfall modify <strong>the</strong> effect <strong>of</strong> <strong>the</strong><br />

driving forces <strong>of</strong> change in pastoral ecosystems ? How does extensification<br />

<strong>of</strong> pastoral systems in eastern Africa affect ecosystem goods <strong>and</strong> services?<br />

What are <strong>the</strong> ecological <strong>and</strong> economic costs <strong>and</strong> benefits <strong>of</strong> different l<strong>and</strong> use<br />

practices <strong>and</strong> l<strong>and</strong> use change in <strong>the</strong>se systems? How do pastoral l<strong>and</strong> use<br />

practices (adoption <strong>of</strong> cultivation , ab<strong>and</strong>onment <strong>of</strong> nomadism, permanent<br />

settlement, l<strong>and</strong>scape fragmentation) affect <strong>the</strong> distribution, diversity <strong>and</strong><br />

viability <strong>of</strong> nutrients, vegetation , biodiversity <strong>and</strong> l<strong>and</strong>scapes in pastoral<br />

ecosystems in eastern Africa? How do changes in l<strong>and</strong> tenure <strong>and</strong> economic<br />

policy affect pastoral ecosystem structure <strong>and</strong> function? How do changes in<br />

pastoral ecosystems affect household incomes <strong>and</strong> nutrition ? What are <strong>the</strong><br />

economic, social <strong>and</strong> ecological values <strong>of</strong> global ecosystem goods <strong>and</strong> services<br />

provided by pastoral ecosystems in eastern Africa (Homewood, 1993; Niamir-<br />

Fuller, 1999)? What are <strong>the</strong> most reliable <strong>and</strong> broadly comparative indicators<br />

<strong>of</strong> ecosystem change across eastern African pastoral systems (e.g. microbes,<br />

soil crusts)? What forces serve to enhance or maintain complexity in pastoral<br />

ecosystems <strong>and</strong> livelihoods, <strong>and</strong> what decreases complexity? How do we<br />

establish benchmarks for ecosystem <strong>and</strong> livelihood change in pastoral systems<br />

that are already heavily used?


The changing face <strong>of</strong> pastoral systems in grass-dominated ecosystems <strong>of</strong> eastern Africa 65<br />

Addressing gaps in our knowledge about how <strong>the</strong>se systems can be<br />

improved<br />

Does <strong>the</strong> addition <strong>of</strong> livestock to wildlife -only systems in eastern Africa<br />

improve biodiversity <strong>and</strong> nutrient cycling? What social institutions best<br />

promote mobility <strong>and</strong> flexibility <strong>of</strong> l<strong>and</strong> use among pastoralists <strong>and</strong> what<br />

policy alternatives can streng<strong>the</strong>n <strong>the</strong>se institutions (de Haan, 1999)? What<br />

information is most useful to pastoralists <strong>and</strong> policy-makers, <strong>and</strong> in what form<br />

is it most easily accessible to each group ? What types <strong>of</strong> incentive encourage<br />

extensification ra<strong>the</strong>r than intensification <strong>of</strong> pastoral ecosystems ? How can<br />

pastoralists be compensated for protecting environmental goods <strong>and</strong> services<br />

<strong>of</strong> benefit to <strong>the</strong> globe? Will carbon credits work for pastoral l<strong>and</strong>s? How can<br />

pastoralists take advantage <strong>of</strong> global conventions <strong>and</strong> funders (UN Convention<br />

to Combat Desertification (CCD); Global Environment Facility (GEF))?<br />

How can pastoralism be better integrated with crop cultivation in areas where<br />

such integration would be beneficial? How <strong>and</strong> when is co-conservation<br />

(integration <strong>of</strong> pastoral production <strong>and</strong> biodiversity conservation) most<br />

successful in eastern Africa?<br />

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on bird species diversity. Conservation Biology, 11: 435–447.


Chapter 3<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa<br />

Anthony R. Palmer <strong>and</strong> Andrew M. Ainslie<br />

SUMMARY<br />

South Africa is subtropical , with temperatures modified by altitude. The interior,<br />

where <strong>the</strong> bulk <strong>of</strong> grassl<strong>and</strong>s are found, is semi -arid to arid , with rainfall<br />

decreasing westwards. The south <strong>and</strong> southwest have winter rainfall; <strong>the</strong> eastern<br />

Cape is bimodal; <strong>and</strong> Kwa-Zulu Natal has summer rainfall. Grassl<strong>and</strong> is mainly<br />

in <strong>the</strong> central, high regions: sour -veldt occurs under high-rainfall on acid soils,<br />

<strong>and</strong> sweet -veldt on fertile soils in semi-arid zones . Savannah occurs in <strong>the</strong> north<br />

<strong>and</strong> east; arid savannah extends to <strong>the</strong> Kalahari. The Nama-karoo , a vast area<br />

<strong>of</strong> steppe in <strong>the</strong> centre <strong>and</strong> west, is mostly used for sheep <strong>and</strong> goats . There are<br />

three categories <strong>of</strong> l<strong>and</strong> tenure : 70 percent is freehold <strong>and</strong> managed commercially;<br />

14 percent is communally managed without clear individual boundaries <strong>and</strong> managed<br />

for subsistence; 16 percent is reserves or freehold industrial <strong>and</strong> urban. South<br />

Africa is multi-ethnic with a majority indigenous population <strong>and</strong> a minority <strong>of</strong><br />

descendants <strong>of</strong> colonists who own much <strong>of</strong> <strong>the</strong> commercial farm l<strong>and</strong>. Natural<br />

pasture is <strong>the</strong> main feed source for grazing livestock. Production systems in communal<br />

areas, based on pastoralism <strong>and</strong> agropastoralism, are subsistence-based <strong>and</strong><br />

labour intensive; cropl<strong>and</strong> is allocated to households, grazing areas are shared by<br />

a community. Commercial areas are fenced ranches <strong>and</strong> fur<strong>the</strong>r subdivided into<br />

paddocks; rotational grazing is normally practised. Stock rearing is very ancient;<br />

cattle predominate but sheep <strong>and</strong> goats are very important. In subsistence systems,<br />

traditional breeds predominate; in commercial farming, exotic <strong>and</strong> locally-created<br />

improved breeds prevail. Sheep are mainly commercial, <strong>and</strong> goats are for subsistence.<br />

Cattle predominate in <strong>the</strong> east, <strong>and</strong> sheep in <strong>the</strong> drier west <strong>and</strong> sou<strong>the</strong>ast.<br />

Goats are widely distributed. The region is home to large numbers <strong>of</strong> grazing <strong>and</strong><br />

o<strong>the</strong>r wildlife , which are common on large-scale ranches <strong>and</strong> are increasing in<br />

importance as a managed resource. Low pr<strong>of</strong>its from domestic stock have led to<br />

an increase in game farming <strong>and</strong> ecotourism . Much <strong>of</strong> <strong>the</strong> better-watered grassl<strong>and</strong><br />

has been converted to crops ; in communal areas this gives a patchwork with<br />

thicket. Fire <strong>and</strong> browsing has reduced woody vegetation , but bush encroachment<br />

remains a problem. Sown pasture is not <strong>of</strong> major importance, except on dairy<br />

farms. Over-seeding <strong>of</strong> degraded range is <strong>of</strong> limited use. Strategies for maintaining<br />

pastoral production include rotation, resting, bush control <strong>and</strong> provision <strong>of</strong><br />

winter pasture in cool areas.<br />

77


78<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

INTRODUCTION<br />

The Republic <strong>of</strong> South Africa is situated at <strong>the</strong> sou<strong>the</strong>rn tip <strong>of</strong> Africa. It is<br />

bordered to <strong>the</strong> north by Namibia, Botswana, Zimbabwe <strong>and</strong> Mozambique;<br />

in <strong>the</strong> west by <strong>the</strong> Atlantic Ocean; <strong>and</strong> in <strong>the</strong> south <strong>and</strong> east by <strong>the</strong> Indian<br />

Ocean (Figure 3.1). The total l<strong>and</strong> area is 1 223 201 km 2 (excluding Lesotho<br />

<strong>and</strong> Swazil<strong>and</strong>). The enclaves <strong>of</strong> Lesotho <strong>and</strong> Swazil<strong>and</strong> are sovereign states.<br />

South Africa’s population is estimated at 40.6 million (Stats SA, 1996), <strong>of</strong> which<br />

approximately 46 percent is rural <strong>and</strong> 54 percent is urban. Agriculture accounts<br />

for 3.2 percent <strong>of</strong> GDP <strong>and</strong> 7 percent (R 14.57 billion in 2000 1 ) <strong>of</strong> exports<br />

<strong>and</strong> supports, directly or indirectly, 15 percent <strong>of</strong> <strong>the</strong> population (National<br />

Department <strong>of</strong> Agriculture <strong>and</strong> L<strong>and</strong> Affairs, 2001).<br />

In its position at <strong>the</strong> sou<strong>the</strong>rn end <strong>of</strong> <strong>the</strong> African continent, South Africa is<br />

<strong>the</strong> gateway to <strong>the</strong> subcontinent, providing <strong>and</strong> maintaining ports <strong>and</strong> road, rail<br />

<strong>and</strong> telecommunication links between sou<strong>the</strong>rn Africa <strong>and</strong> <strong>the</strong> rest <strong>of</strong> <strong>the</strong> world.<br />

With a long history <strong>of</strong> trade <strong>and</strong> scientific exchange with Europe <strong>and</strong> North<br />

America, South Africa has developed opportunities for marketing its agricultural<br />

products within <strong>the</strong>se economies. Many <strong>of</strong> <strong>the</strong>se products (beef, mutton, fleece<br />

<strong>and</strong> hides) have been derived directly from grassl<strong>and</strong>s. The national science programmes<br />

<strong>and</strong> those associated with resource management <strong>and</strong> agriculture have<br />

been linked through government <strong>and</strong> tertiary education initiatives to explore<br />

trends in resource condition <strong>and</strong> production. These initiatives have focused on<br />

three primary research areas: (1) describing <strong>the</strong> biodiversity <strong>of</strong> rangel<strong>and</strong>s <strong>and</strong><br />

<strong>the</strong>ir associated resources ; (2) developing an underst<strong>and</strong>ing <strong>of</strong> <strong>the</strong> impact <strong>of</strong><br />

herbivory on <strong>the</strong> resource; <strong>and</strong> (3) developing methods for improving production.<br />

In addition, research programmes have endeavoured to underst<strong>and</strong> <strong>the</strong><br />

relationships between herbivory by domestic livestock <strong>and</strong> <strong>the</strong> sustained use <strong>of</strong><br />

<strong>the</strong> resource for agricultural production.<br />

South Africa has a unique combination <strong>of</strong> natural resources , climatic environments<br />

<strong>and</strong> ethnic groups, making it an interesting <strong>and</strong> challenging country.<br />

<strong>Grassl<strong>and</strong>s</strong> are a major component <strong>of</strong> <strong>the</strong> natural vegetation , with <strong>the</strong> biome<br />

comprising some 295 233 km 2 <strong>of</strong> <strong>the</strong> central regions <strong>of</strong> <strong>the</strong> country, <strong>and</strong> adjoining<br />

<strong>and</strong> extending into most <strong>of</strong> <strong>the</strong> major biomes (forest , savannah, thicket,<br />

Nama-karoo ) in <strong>the</strong> region. This interface between grassl<strong>and</strong>s <strong>and</strong> o<strong>the</strong>r<br />

biomes contributes substantially to <strong>the</strong>ir floristic <strong>and</strong> faunal diversity <strong>and</strong> to<br />

<strong>the</strong> important role <strong>the</strong>y play in <strong>the</strong> agricultural economy. The grassl<strong>and</strong>s <strong>of</strong><br />

South Africa are also <strong>the</strong> home to most <strong>of</strong> <strong>the</strong> human population, with <strong>the</strong> mining<br />

<strong>and</strong> o<strong>the</strong>r industrial complexes <strong>of</strong> Gauteng (formerly <strong>the</strong> Witwatersr<strong>and</strong>)<br />

being located on <strong>the</strong> high-veldt grassl<strong>and</strong>s. This proximity to large human<br />

populations <strong>and</strong> <strong>the</strong>ir associated markets, as well <strong>the</strong> climatic environment,<br />

which favours commercial, rainfed agriculture, has had a large impact on <strong>the</strong><br />

native grassl<strong>and</strong>s. Millions <strong>of</strong> hectares have been ploughed <strong>and</strong> converted into<br />

1 ZA R<strong>and</strong> 6.4475 = US$ 1 (mid-October 2004).


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 79<br />

Figure 3.1<br />

The Republic <strong>of</strong> South Africa , showing its position in sou<strong>the</strong>rn Africa.<br />

dryl<strong>and</strong> cultivation for <strong>the</strong> production <strong>of</strong> maize, oilseed, millet <strong>and</strong> o<strong>the</strong>r commercial<br />

rainfed crops . Commercial ranching <strong>of</strong> cattle <strong>and</strong> sheep for <strong>the</strong> markets<br />

in Gauteng, Mpumalanga <strong>and</strong> <strong>the</strong> Free State has placed pressure on <strong>the</strong> grassl<strong>and</strong>s,<br />

resulting in changes in species composition <strong>and</strong> production potential.<br />

However <strong>the</strong>se trends are not ubiquitous, <strong>and</strong> millions <strong>of</strong> hectares <strong>of</strong> native<br />

grassl<strong>and</strong> still occur.<br />

<strong>Grassl<strong>and</strong>s</strong> are also <strong>the</strong> most important resource available to <strong>the</strong> graziers in<br />

developing regions <strong>of</strong> South Africa . The former homel<strong>and</strong>s <strong>of</strong> Transkei, Ciskei<br />

<strong>and</strong> KwaZulu Natal, situated on <strong>the</strong> eastern seaboard, are predominantly grassl<strong>and</strong><br />

. The inhabitants <strong>of</strong> <strong>the</strong>se regions are dependant upon this resource for <strong>the</strong><br />

production <strong>of</strong> meat , milk , hides <strong>and</strong> fleeces, <strong>and</strong> for <strong>the</strong> provision <strong>of</strong> draught<br />

power, as well as o<strong>the</strong>r traditional uses <strong>of</strong> livestock. Although <strong>the</strong>se products<br />

are not produced in conventional commercial systems , <strong>the</strong>y contribute substantially<br />

to <strong>the</strong> economy <strong>and</strong> food security <strong>of</strong> <strong>the</strong>se regions. In this chapter,<br />

we will introduce <strong>the</strong> role <strong>of</strong> grassl<strong>and</strong>s in this economy based on communal<br />

l<strong>and</strong> tenure systems.<br />

The grassl<strong>and</strong>s (see Figure 3.2) adjoin a number <strong>of</strong> o<strong>the</strong>r economically<br />

important biomes (savannah, thicket <strong>and</strong> Nama-karoo ) <strong>and</strong> grassl<strong>and</strong> patches<br />

are found within <strong>the</strong>se biomes. It is important to include <strong>the</strong>se biomes in this


80<br />

Figure 3.2<br />

The extent <strong>of</strong> grassl<strong>and</strong>s in South Africa .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

chapter, as <strong>the</strong>ir ecology is strongly interlinked, <strong>and</strong> to consider <strong>the</strong> role that<br />

all grassl<strong>and</strong>s <strong>and</strong> <strong>the</strong>ir associated biota play in <strong>the</strong> economy <strong>of</strong> South Africa .<br />

In this chapter, grassl<strong>and</strong>s in South Africa will have a wider definition than at<br />

<strong>the</strong> biome level.<br />

The grassl<strong>and</strong> resources <strong>of</strong> South Africa have been extensively reported,<br />

with four important publications appearing recently (Cowling, Richardson<br />

<strong>and</strong> Pierce, 1997; Dean <strong>and</strong> Milton 1999; Tainton, 1999, 2000). These provide<br />

exhaustive information on types <strong>of</strong> range l<strong>and</strong> resources; <strong>the</strong>ir general<br />

ecology, including history, biodiversity , species composition <strong>and</strong> associated<br />

environmental conditions; dynamics ; productivity ; <strong>and</strong> l<strong>and</strong>-use <strong>and</strong> management<br />

options available to <strong>the</strong>ir peoples.<br />

In addition, information applicable to <strong>the</strong> management <strong>of</strong> grassl<strong>and</strong>s in<br />

sou<strong>the</strong>rn Africa is provided in <strong>the</strong> approximately 980 research publications that<br />

have appeared since 1966 in <strong>the</strong> African Journal <strong>of</strong> Range <strong>and</strong> Forage Science<br />

<strong>and</strong> its predecessors. O<strong>the</strong>r peer-reviewed scientific journals that provide<br />

exhaustive information on <strong>the</strong> natural resources <strong>of</strong> South Africa include <strong>the</strong><br />

South African Journal <strong>of</strong> Botany, South African Journal <strong>of</strong> Science, Memoirs<br />

<strong>of</strong> <strong>the</strong> Botanical Survey <strong>of</strong> South Africa, South African Journal <strong>of</strong> Wildlife<br />

Research, <strong>and</strong> Bothalia. Researchers are strongly encouraged to publish in <strong>the</strong>


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 81<br />

wider international literature <strong>and</strong> many important research articles appear in<br />

peer-reviewed journals published elsewhere. This chapter does not attempt to<br />

syn<strong>the</strong>size or review all this available information, but provides a brief summary<br />

<strong>of</strong> <strong>the</strong> current status <strong>of</strong> our underst<strong>and</strong>ing <strong>of</strong> sou<strong>the</strong>rn African grassl<strong>and</strong><br />

ecosystems .<br />

PHYSICAL FEATURES<br />

The Great Escarpment <strong>and</strong> <strong>the</strong> Drakensberg mountains provide <strong>the</strong> physical<br />

barriers that largely determine <strong>the</strong> climate <strong>and</strong> vegetation <strong>of</strong> much <strong>of</strong><br />

<strong>the</strong> livestock growing regions <strong>of</strong> South Africa . The combination <strong>of</strong> moderate<br />

to high rainfall <strong>and</strong> high elevation associated with <strong>the</strong>se features means<br />

that <strong>the</strong> largest area <strong>of</strong> native grassl<strong>and</strong>s occurs here. In geological time,<br />

several phases <strong>of</strong> uplifting, erosion <strong>and</strong> deposition have created complex<br />

l<strong>and</strong>forms determined by <strong>the</strong> underlying geology. The country has five<br />

main physiographical regions at differing elevations (Figure 3.3).<br />

• The southwestern fold mountains, which influence <strong>the</strong> climate <strong>and</strong> vegetation<br />

patterns <strong>of</strong> <strong>the</strong> sou<strong>the</strong>rn Cape.<br />

• The coastal plain, which extends from <strong>the</strong> Namibian border on <strong>the</strong> west,<br />

all along <strong>the</strong> coast to sou<strong>the</strong>rn Mozambique on <strong>the</strong> east. This narrow plain<br />

between <strong>the</strong> Ocean <strong>and</strong> <strong>the</strong> Great Escarpment is <strong>the</strong> region with <strong>the</strong> most<br />

fertile soils, moderate to high rainfall , <strong>and</strong> where most intensive livestock production<br />

occurs.<br />

• The Great Escarpment, which forms <strong>the</strong> major barrier to moisture reaching <strong>the</strong><br />

interior, toge<strong>the</strong>r with <strong>the</strong> central high-veldt, contain most <strong>of</strong> <strong>the</strong> high elevation<br />

Figure 3.3<br />

Elevational map (in metres) for South Africa .<br />

SOURCE: Dent, Lynch <strong>and</strong> Schulze, 1987.


82<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 3.1<br />

Kalahari: The arid savannah occurs in <strong>the</strong> northwestern portions <strong>of</strong> South Africa<br />

<strong>and</strong> sou<strong>the</strong>rn Botswana, <strong>and</strong> is associated with <strong>the</strong> s<strong>and</strong>s <strong>of</strong> <strong>the</strong> Kalahari system.<br />

The vegetation comprises a woody layer <strong>of</strong> mainly single-stemmed deciduous<br />

shrubs, <strong>and</strong> a ground layer <strong>of</strong> grasses <strong>and</strong> forbs.<br />

grassl<strong>and</strong>s. The major urban, mining <strong>and</strong> agricultural activities take place<br />

in <strong>the</strong> central high-veldt, which lies at 1 600–1 700 m above sea level.<br />

• The great Karoo basin lies at 1 400–1 600 m <strong>and</strong> contains <strong>the</strong> steppe-type<br />

vegetation associated with fertile aridosols <strong>of</strong> a semi -arid region.<br />

• The Kalahari region, bordering on Namibia <strong>and</strong> Botswana, also represents<br />

a very important extensive livestock producing area. The region is <strong>the</strong><br />

sou<strong>the</strong>rn part <strong>of</strong> <strong>the</strong> continental-scale basin, which is covered by s<strong>and</strong>s <strong>of</strong><br />

varying depth (sometimes >200 m). Deep boring technology has enabled<br />

commercial graziers to become permanently established in <strong>the</strong> region <strong>and</strong><br />

to optimize livestock production <strong>of</strong>f arid grassl<strong>and</strong>s. The vegetation is an<br />

arid savannah (Plate 3.1), with a carrying capacity <strong>of</strong> 30 to 40 ha per Livestock<br />

Unit (LSU).<br />

South Africa is thus characterized by a high interior plateau, surrounded<br />

on three sides by <strong>the</strong> Great Escarpment <strong>and</strong> <strong>the</strong> Drakensberg mountains,<br />

which provide <strong>the</strong> physical barriers that largely determine <strong>the</strong> climate <strong>and</strong><br />

vegetation . The plateau is intruded by several mountain massifs, with <strong>the</strong><br />

highl<strong>and</strong>s <strong>of</strong> Lesotho exceeding 3 000 m in places. The nor<strong>the</strong>rn <strong>and</strong> western<br />

sections <strong>of</strong> <strong>the</strong> plateau contain two large basins, namely <strong>the</strong> Kalahari <strong>and</strong> <strong>the</strong><br />

Transvaal Bushveldt (Partridge, 1997). Adjacent to <strong>the</strong> Great Escarpment lies<br />

a coastal plinth that varies in width from 50 to 200 km. This plinth is incised<br />

by deep riverine gorges.<br />

A.R. PALMER


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 83<br />

CLIMATE<br />

Rainfall<br />

With a mean annual rainfall <strong>of</strong> approximately 450 mm, South Africa is regarded<br />

as semi- arid . There is wide regional variation in annual rainfall (Figure 3.4),<br />

from 3 000 mm<br />

in <strong>the</strong> mountains <strong>of</strong> <strong>the</strong> south western Cape. However, only 28 percent <strong>of</strong> <strong>the</strong><br />

country receives more than 600 mm (Table 3.1).<br />

The uncertainty <strong>of</strong> <strong>the</strong> rainfall is best expressed by <strong>the</strong> coefficient <strong>of</strong> variation<br />

in annual rainfall (Figure 3.5). The low rainfall regions have <strong>the</strong> highest<br />

coefficient <strong>of</strong> variation <strong>and</strong> drought is common. Annual rainfall distribution<br />

is skewed such that <strong>the</strong>re are more below-average than above-average rainfall<br />

years, <strong>and</strong> <strong>the</strong> median is more meaningful than <strong>the</strong> mean. The high seasonal<br />

variations are accompanied by high spatial variability, <strong>and</strong> <strong>the</strong> annual potential<br />

evapotranspiration (PET) may exceed annual precipitation by ratios <strong>of</strong> up to<br />

20:1, hence drought conditions are a common phenomenon (Schulze, 1997).<br />

The declaration <strong>of</strong> drought status to a magisterial district has historically<br />

been used by <strong>the</strong> Department <strong>of</strong> Agriculture <strong>and</strong> L<strong>and</strong> Affairs to intervene in<br />

Figure 3.4<br />

The median annual rainfall for South Africa .<br />

SOURCE: Dent, Lynch <strong>and</strong> Schulze, 1987.<br />

TABLE 3.1<br />

Annual rainfall distribution <strong>and</strong> climatic classification in South Africa<br />

Rainfall (mm) Classification Percentage <strong>of</strong> l<strong>and</strong> surface<br />


84<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Figure 3.5<br />

The coefficient <strong>of</strong> variation in annual rainfall for South Africa . Derived from <strong>the</strong><br />

long-term rainfall records (50 years or more data) from 1015 stations.<br />

exceptional circumstances to assist l<strong>and</strong> users. Since 1994, this intervention has<br />

been discouraged; instead, graziers are encouraged to plan <strong>the</strong>ir production<br />

system within <strong>the</strong> long-term expectations <strong>of</strong> <strong>the</strong>ir farms .<br />

Seasonality <strong>of</strong> rainfall<br />

There are three major zones within <strong>the</strong> country, namely <strong>the</strong> winter rainfall<br />

region <strong>of</strong> <strong>the</strong> western, southwestern <strong>and</strong> sou<strong>the</strong>rn Cape; <strong>the</strong> bimodal rainfall<br />

region <strong>of</strong> <strong>the</strong> Eastern Cape; <strong>and</strong> <strong>the</strong> strong summer seasonality <strong>of</strong> <strong>the</strong> central<br />

high-veldt <strong>and</strong> KwaZulu Natal. The regions with strong summer seasonality<br />

are strongly influenced by <strong>the</strong> inter-tropical convergence, which moves<br />

southwards during <strong>the</strong> sou<strong>the</strong>rn hemisphere summer. The season <strong>of</strong> rainfall<br />

in <strong>the</strong> southwestern <strong>and</strong> sou<strong>the</strong>rn coastal regions is influenced by <strong>the</strong> frontal<br />

systems developing in <strong>the</strong> sou<strong>the</strong>rn Oceans. These frontal systems bring<br />

cool, moist air during <strong>the</strong> winter season (June–August) <strong>and</strong> promote <strong>the</strong><br />

development <strong>of</strong> sclerophyllous <strong>and</strong> succulent floras. In general, <strong>the</strong> natural<br />

vegetation <strong>of</strong> <strong>the</strong>se regions is less useful for livestock production. Because <strong>of</strong><br />

<strong>the</strong> varying rainfall seasonality, growing periods vary throughout <strong>the</strong> country.<br />

In <strong>the</strong> north, east <strong>and</strong> along <strong>the</strong> coastal belt, summer seasonality encourages C4<br />

grass production <strong>and</strong> <strong>the</strong> main focus is on cattle <strong>and</strong> sheep production. In <strong>the</strong><br />

semi -arid central <strong>and</strong> western regions, C3 grasses <strong>and</strong> shrubs predominate, <strong>and</strong><br />

this favours sheep <strong>and</strong> goat production.<br />

Temperatures<br />

Temperatures in South Africa are strongly determined by elevation <strong>and</strong> distance<br />

from <strong>the</strong> sea. The high elevation (1 500–1 700 m) inl<strong>and</strong> regions experience a<br />

warm summer (January) with mean daily maximum temperatures <strong>of</strong> 26–28°C


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 85<br />

<strong>and</strong> cool winter (July) mean daily minima <strong>of</strong> 0–2°C), with frost during <strong>the</strong><br />

coolest months (Schulze 1997). These conditions favour <strong>the</strong> development <strong>and</strong><br />

maintenance <strong>of</strong> grassl<strong>and</strong> . This region experiences occasional snow. The warm<br />

Mozambique current on <strong>the</strong> east coast plays a strong role in ameliorating<br />

temperatures along <strong>the</strong> coastal zone between East London <strong>and</strong> Mozambique.<br />

The nor<strong>the</strong>rn parts <strong>of</strong> <strong>the</strong> coastal zone experience warm winter daily minima<br />

(8–10°C) <strong>and</strong> warm summer maxima (32°C) <strong>and</strong> <strong>the</strong> climate is strongly<br />

subtropical . The vast interior, represented by <strong>the</strong> Kalahari basin <strong>and</strong> <strong>the</strong> Namakaroo<br />

, experiences a more extreme climate, with low winter mean daily minima<br />

(0–2°C ) <strong>and</strong> high mean daily summer maxima (32–34°C). The sou<strong>the</strong>rn <strong>and</strong><br />

southwestern coastal zone experiences moderate winter mean daily minima<br />

(6–8°C) as a result <strong>of</strong> <strong>the</strong> circumpolar Westerlies that bring moist, cold air from<br />

<strong>the</strong> sou<strong>the</strong>rn Oceans during June, July <strong>and</strong> August (winter). The temperatures<br />

on <strong>the</strong> west coast, from Cape Town to Port Nolloth, are influenced by <strong>the</strong><br />

cold Benguela current. This arid region experiences July mean daily minima <strong>of</strong><br />

6–8°C, but little or no frost, <strong>and</strong> is able to support a rich succulent flora. The<br />

cold ocean current favours <strong>the</strong> development <strong>of</strong> fog during <strong>the</strong> winter months,<br />

bringing cold, moist air onto <strong>the</strong> coastal plain.<br />

Soils<br />

The relatively young South Africa n geology gives rise to soils <strong>of</strong> high nutrient<br />

status. The Nama-karoo biome <strong>of</strong> <strong>the</strong> central regions comprise predominantly<br />

mudstones <strong>and</strong> s<strong>and</strong>stones <strong>of</strong> <strong>the</strong> Karoo Supergroup, which give rise to<br />

shallow (


86<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

PEOPLE<br />

Hominids have occupied sou<strong>the</strong>rn Africa for three million years (Volman,<br />

1984), <strong>and</strong> although <strong>the</strong> ancestral forms used fire (Thackeray et al., 1990),<br />

<strong>the</strong>re are no artefacts that enable us to quantify <strong>the</strong> extent <strong>of</strong> <strong>the</strong>ir impact.<br />

They undoubtedly burnt large tracts <strong>of</strong> l<strong>and</strong> in <strong>the</strong> interior, <strong>the</strong>reby promoting<br />

<strong>the</strong> development <strong>of</strong> grassl<strong>and</strong>s, <strong>and</strong> early hominids must be regarded as a<br />

significant agent in <strong>the</strong> evolution <strong>of</strong> grassl<strong>and</strong>s in South Africa .<br />

Contemporary South Africa is a multicultural nation, with many ethnic<br />

groups <strong>and</strong> colonial nations represented in its populations. It is this wide<br />

variation in <strong>the</strong> origins <strong>of</strong> its people that make underst<strong>and</strong>ing <strong>the</strong> management<br />

<strong>of</strong> its natural resources so challenging. The remaining San people <strong>of</strong> <strong>the</strong><br />

sou<strong>the</strong>rn Kalahari represent <strong>the</strong> oldest traditional users <strong>of</strong> natural vegetation for<br />

survival. San people are still able to subsist as hunter-ga<strong>the</strong>rers in <strong>the</strong> most arid<br />

regions <strong>of</strong> <strong>the</strong> country, providing some evidence <strong>of</strong> how it is possible to sustain<br />

small human populations in this region. San exhibit a strong underst<strong>and</strong>ing<br />

<strong>of</strong> resource limitations <strong>and</strong> probably follow <strong>the</strong> principles embodied in <strong>the</strong><br />

disequilibrium <strong>the</strong>ory (Ellis <strong>and</strong> Swift, 1988) <strong>the</strong> closest <strong>of</strong> all sou<strong>the</strong>rn African<br />

people. Until <strong>the</strong> end <strong>of</strong> <strong>the</strong> nineteenth century, San also survived in <strong>the</strong><br />

mountainous regions <strong>of</strong> <strong>the</strong> Drakensberg <strong>and</strong> along <strong>the</strong> Great Escarpment. The<br />

evidence <strong>of</strong> <strong>the</strong>ir history is found in <strong>the</strong> numerous rock paintings <strong>and</strong> o<strong>the</strong>r<br />

artefacts that occur in caves along <strong>the</strong> Great Escarpment. They hunted on <strong>the</strong><br />

grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> mountainous interior.<br />

The Nguni people <strong>of</strong> <strong>the</strong> eastern seaboard are graziers with a long<br />

(>10 000 years) history <strong>of</strong> maintaining domestic livestock. These people comprise<br />

<strong>the</strong> Seswati, AmaZulu <strong>and</strong> AmaXhosa nations, <strong>and</strong> occupy <strong>the</strong> leasehold<br />

l<strong>and</strong>s in <strong>the</strong> former homel<strong>and</strong>s <strong>of</strong> Gazankulu, KwaZulu Natal, Transkei <strong>and</strong><br />

Ciskei. The society is organized around a village, comprising dwelling units,<br />

cultivated l<strong>and</strong>s <strong>and</strong> grazing l<strong>and</strong>s . Their early cattle were <strong>of</strong> Bos indicus stock<br />

<strong>and</strong> this line is being developed <strong>and</strong> protected in recent years with <strong>the</strong> establishment<br />

<strong>of</strong> an Nguni studbook. Situated on <strong>the</strong> eastern escarpment <strong>and</strong> in <strong>the</strong><br />

Drakensberg is <strong>the</strong> mountain kingdom <strong>of</strong> Lesotho, <strong>the</strong> home <strong>of</strong> <strong>the</strong> Basotho<br />

people. Lesotho falls entirely within <strong>the</strong> grassl<strong>and</strong> biome <strong>and</strong> <strong>the</strong> Basotho people<br />

are cattle <strong>and</strong> sheep farmers, depending largely on <strong>the</strong> natural grassl<strong>and</strong> for<br />

production. Almost all <strong>of</strong> Lesotho is communally managed <strong>and</strong> <strong>the</strong> challenges<br />

to managing <strong>the</strong> grassl<strong>and</strong>s sustainably remain <strong>the</strong> same as those <strong>of</strong> communal<br />

rangel<strong>and</strong> in South Africa .<br />

Europeans <strong>of</strong> Dutch descent first arrived in South Africa in 1652, <strong>and</strong> settled<br />

initially at <strong>the</strong> supply station in Cape Town. These settlers were joined by<br />

French Huguenots, who brought with <strong>the</strong>m a knowledge <strong>of</strong> viticulture <strong>and</strong><br />

animal husb<strong>and</strong>ry (mainly sheep ). Descendants <strong>of</strong> <strong>the</strong> early Dutch settlers<br />

began moving into <strong>the</strong> interior <strong>of</strong> <strong>the</strong> country with <strong>the</strong> abolition <strong>of</strong> slavery,<br />

<strong>and</strong> developed <strong>the</strong> extensive cattle <strong>and</strong> sheep farming enterprises that currently<br />

occupy l<strong>and</strong> in <strong>the</strong> Kalahari, central Free State <strong>and</strong> <strong>the</strong> North West Province. It


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 87<br />

was only in 1820 that settlers <strong>of</strong> British origin arrived <strong>and</strong> settled on <strong>the</strong> eastern<br />

seaboard. They developed mixed -farming operations in <strong>the</strong> Eastern Cape <strong>and</strong><br />

Kwa-Zulu Natal, including cattle <strong>and</strong> wool-sheep enterprises.<br />

LIVESTOCK<br />

South Africa ’s national commercial cattle herd is estimated to number 13.8<br />

million, including not only various international dairy <strong>and</strong> beef-cattle breeds,<br />

but also indigenous breeds such as <strong>the</strong> Afrikaner (or Afrik<strong>and</strong>er). Locally<br />

developed breeds include <strong>the</strong> Drakensberger <strong>and</strong> Bonsmara . These breeds<br />

are systematically <strong>and</strong> scientifically improved through breeding programmes,<br />

performance testing <strong>and</strong> <strong>the</strong> evaluation <strong>of</strong> functional efficiency. Almost<br />

590 000 t <strong>of</strong> beef was produced in 2000. Owing to relatively low carrying<br />

capacity on <strong>the</strong> natural pastures, extensive cattle ranching is practised in <strong>the</strong><br />

lower rainfall regions.<br />

In addition to <strong>the</strong> cattle , in 1999 <strong>the</strong>re were about 25.8 million sheep<br />

<strong>and</strong> 6.3 million goats in <strong>the</strong> country, in addition to smaller numbers <strong>of</strong> pigs,<br />

poultry <strong>and</strong> farmed ostriches. The numbers <strong>of</strong> cattle <strong>and</strong> small stock fluctuate<br />

in response to high <strong>and</strong> low rainfall years. The 1999 census data shows<br />

<strong>the</strong> distribution between <strong>the</strong> freehold <strong>and</strong> communal sectors (Table 3.2). Beef<br />

production is <strong>the</strong> most important livestock-related activity, followed by smallstock<br />

(sheep <strong>and</strong> goat ) production. The combined livestock sector contributes<br />

75 percent <strong>of</strong> total agricultural output (National Department <strong>of</strong> Agriculture ,<br />

1999). Livestock numbers <strong>and</strong> production for <strong>the</strong> period 1995–2003 are shown<br />

in Table 3.3).<br />

TABLE 3.2<br />

National livestock census 1999.<br />

Tenure Cattle Sheep Goats<br />

Freehold 6 275 000 19 300 000 2 070 000<br />

Communal 6 825 000 9 300 000 4 230 000<br />

TOTAL 13 100 000 28 600 000 6 300 000<br />

SOURCE: National Department <strong>of</strong> Agriculture , 1999.<br />

TABLE 3.3<br />

Production (×1000 t) in <strong>the</strong> period 1995–2003 <strong>of</strong> beef <strong>and</strong> veal; chicken; mutton <strong>and</strong> lamb; goat ;<br />

game ; wool; <strong>and</strong> milk .<br />

Commodity 1995 1996 1997 1998 1999 2000 2001 2002 2003<br />

Beef <strong>and</strong> Veal 508 508 503 496 513 622 532 576 590<br />

Chicken meat 600 649 692 665 706 817 813 820 820<br />

Mutton <strong>and</strong> lamb 110 98 91 91 112 118 104 100 104<br />

Goat meat 36 37 37 37 36 36 36 36 36<br />

Game meat 10 11 13 14 15 16 16 17 17<br />

Total meat 1 397 1 437 1 467 1 428 1 511 1 719 1 618 1 667 1 686<br />

Wool (greasy) 67 62 57 53 56 53 57 57 57<br />

Milk (total) 2 794 2 638 2 851 2 968 2 667 2 540 2 700 2 750 2 750<br />

SOURCE: FAO database 2004.


88<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

The grassl<strong>and</strong>s support a high proportion (70–80 percent) <strong>of</strong> <strong>the</strong> total sheep<br />

<strong>and</strong> wool produced. The main breeds <strong>of</strong> sheep are fine-wool Merino , <strong>the</strong> South<br />

Africa n mutton Merino, Dohne Merino, Dormer, Dorper (<strong>the</strong> last-named two<br />

are locally developed breeds) <strong>and</strong> <strong>the</strong> Karakul . The Nama-karoo , a steppe like<br />

vegetation <strong>of</strong> <strong>the</strong> central <strong>and</strong> western regions, supports both sheep <strong>and</strong> goat<br />

enterprises. The Karakul industry is limited to <strong>the</strong> dry northwestern regions <strong>of</strong><br />

Nor<strong>the</strong>rn Cape Province.<br />

WILDLIFE<br />

South Africa possesses a rich <strong>and</strong> diverse wildlife resource, with many<br />

unique <strong>and</strong> interesting mammals, birds , reptiles <strong>and</strong> amphibians, providing<br />

a wide range <strong>of</strong> products, including tourism opportunities, meat , hides,<br />

curios, recreation <strong>and</strong> trophy hunting. There are 338 large <strong>and</strong> small mammal<br />

species (Smi<strong>the</strong>rs, 1983) <strong>and</strong> 920 bird species (Maclean, 1993). Four families<br />

(Elephantidae, Equidae, Bovidae <strong>and</strong> Suidae) contribute most <strong>of</strong> <strong>the</strong> large<br />

mammal taxa <strong>and</strong> represent <strong>the</strong> largest biomass <strong>of</strong> primary consumers. During<br />

<strong>the</strong> last thirty years, <strong>the</strong> large mammal fauna has begun to make a significant<br />

contribution to <strong>the</strong> economy <strong>of</strong> rangel<strong>and</strong> through increasing ecotourism <strong>and</strong><br />

<strong>the</strong> development <strong>of</strong> private game farms <strong>and</strong> nature reserves . About 10 percent<br />

<strong>of</strong> <strong>the</strong> country is designated as National Parks <strong>and</strong> formal conservation<br />

areas, but a considerable proportion <strong>of</strong> <strong>the</strong> wildlife exists outside formally<br />

proclaimed conservation areas. Many livestock farmers derive some or all<br />

<strong>of</strong> <strong>the</strong>ir income from hunting or ecotourism. In 1997, approximately 8 000<br />

private game ranches , covering some 15 million hectares, had been established<br />

(Grossman, Holden <strong>and</strong> Collinson, 1999). This figure has continued to<br />

increase rapidly since <strong>the</strong>n, with many farms being enclosed by game-pro<strong>of</strong><br />

fencing . The issuing <strong>of</strong> a certificate <strong>of</strong> adequate enclosure by <strong>the</strong> various<br />

provincial nature conservation authorities permits <strong>the</strong> l<strong>and</strong>owner to exercise<br />

rights over <strong>the</strong> wild herbivores that would o<strong>the</strong>rwise only exist during <strong>the</strong><br />

so-called “hunting season” in May–July each year. Individual l<strong>and</strong>owners<br />

are now able to capture, transport, hunt <strong>and</strong> introduce any wild animal for<br />

which a permit has been provided <strong>and</strong> for which <strong>the</strong>re is a certificate <strong>of</strong><br />

adequate enclosure. Although this has had some positive consequences for <strong>the</strong><br />

protection <strong>of</strong> certain rare species (e.g. mountain zebra, blesbok), where <strong>the</strong> last<br />

remaining populations were on private l<strong>and</strong>, it has had some negative impacts.<br />

These include <strong>the</strong> large-scale introduction <strong>of</strong> common <strong>and</strong> freely available<br />

native species (e.g. impala, nyala, warthog) to regions where <strong>the</strong>re is no record<br />

<strong>of</strong> <strong>the</strong>ir historical occurrence. The full consequences <strong>of</strong> <strong>the</strong>se introductions<br />

on o<strong>the</strong>r species (e.g. nyala on kudu; impala on bushbuck) are not properly<br />

understood <strong>and</strong> fur<strong>the</strong>r research is required. Conservation agencies have<br />

<strong>the</strong>mselves been guilty <strong>of</strong> transgressions <strong>of</strong> this nature, re-introducing species<br />

such as warthog in <strong>the</strong> Eastern Cape Province, which have proliferated <strong>and</strong> are<br />

now regarded as a problem animal by graziers.


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 89<br />

The natural flora, comprising some 24 000 taxa, is one <strong>of</strong> <strong>the</strong> richest floras<br />

in <strong>the</strong> world <strong>and</strong> creates many opportunities for developing <strong>the</strong> ecotourism<br />

industry. Regions <strong>of</strong> particular significance include Namaqual<strong>and</strong>, which<br />

attracts visitors to its unique floral displays during September <strong>of</strong> each year.<br />

The diverse Cape floral kingdom, with its estimated 8 000 taxa <strong>and</strong> associated<br />

avifauna, also provides <strong>the</strong> visitor with a glimpse <strong>of</strong> unique evolutionary forces<br />

driving speciation in <strong>the</strong> region. The sou<strong>the</strong>rn Cape <strong>and</strong> its “garden route”,<br />

with a high structural diversity (Afromontane forests, coastal thicket, lowl<strong>and</strong><br />

fynbos <strong>and</strong> mountain fynbos), attracts many international visitors.<br />

LAND TENURE<br />

There are four broad categories <strong>of</strong> l<strong>and</strong> use in South Africa that are relevant<br />

to agricultural production, representing various l<strong>and</strong> tenure regimes.<br />

Approximately 70 percent <strong>of</strong> <strong>the</strong> country is “commercial” farml<strong>and</strong> under freehold<br />

tenure, 14 percent is state l<strong>and</strong> that is communally managed, 10 percent is<br />

formally conserved by <strong>the</strong> State as National <strong>and</strong> o<strong>the</strong>r parks, <strong>and</strong> <strong>the</strong> remaining<br />

6 percent is freehold l<strong>and</strong> used for mining, urban <strong>and</strong> industrial development .<br />

The communal areas are situated mainly in <strong>the</strong> former homel<strong>and</strong>s <strong>of</strong> Transkei,<br />

Ciskei, Bophutatswana, Lebowa, Kwa-Zulu, Venda <strong>and</strong> Gazankulu in <strong>the</strong><br />

north <strong>and</strong> east <strong>of</strong> <strong>the</strong> country, while <strong>the</strong> commercial areas occupy most <strong>of</strong> <strong>the</strong><br />

western, central <strong>and</strong> sou<strong>the</strong>rn regions.<br />

There are two widely disparate types <strong>of</strong> l<strong>and</strong> tenure systems (Table 3.4). On<br />

<strong>the</strong> freehold farms <strong>the</strong>re are clear boundaries, exclusive rights for <strong>the</strong> individual<br />

properties, <strong>and</strong> commercial farming objectives. These l<strong>and</strong>owners are able to<br />

trade with <strong>the</strong>ir properties <strong>and</strong> use <strong>the</strong>ir title as collateral security against loans.<br />

In contrast, in <strong>the</strong> communal areas, <strong>the</strong>re are <strong>of</strong>ten unclear boundaries, generally<br />

open access rights to grazing areas <strong>and</strong> farmers are subsistence oriented.<br />

TABLE 3.4<br />

A comparison between communal <strong>and</strong> freehold tenure systems in a similar area (approximately<br />

15 000 ha) <strong>of</strong> <strong>the</strong> Peddie district, Eastern Cape, South Africa .<br />

Tenure system Communal Commercial (Freehold)<br />

Economic orientation Multiple use but essentially<br />

subsistence<br />

Pr<strong>of</strong>it (commercial)<br />

Human population density<br />

(persons per km2 )<br />

56 3–6<br />

Livestock Cattle 3 548 Cattle 2 028<br />

Sheep 5 120 Goats 3 000<br />

Goats 14 488<br />

Ability to maintain natural Poor Economics <strong>and</strong> strong peer pressure to achieve<br />

resources<br />

desired conservation state<br />

Livestock owners Approx 3 000 10–12<br />

Infrastructure Poor Road system, power network, fencing <strong>and</strong> water<br />

provision<br />

Access to formal markets Poor Good – commodity-based marketing<br />

Historical access to subsidies<br />

<strong>and</strong> loans<br />

Weak Good<br />

SOURCE: Palmer, Novellie <strong>and</strong> Lloyd, 1999.


90<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Here, l<strong>and</strong> tenure issues considerably hamper <strong>the</strong> introduction <strong>and</strong> adoption<br />

<strong>of</strong> improved management practices.<br />

Freehold <strong>and</strong> commercial sector<br />

The commercial farming sector is well developed, capital-intensive <strong>and</strong> largely<br />

export oriented. Commercial-area livestock production accounts for 75 percent<br />

<strong>of</strong> national agricultural output <strong>and</strong> comes from 52 percent <strong>of</strong> <strong>the</strong> farming <strong>and</strong><br />

grazing l<strong>and</strong> (Table 3.5). The freehold area in <strong>the</strong> rural Western Cape, with its<br />

associated cropping economy, comprises 53 072 l<strong>and</strong> parcels with an average<br />

size <strong>of</strong> 243 ha. In <strong>the</strong> Eastern Cape, where l<strong>and</strong> parcels can be regarded as<br />

individual ranches or enterprises, <strong>the</strong>re are 37 823 l<strong>and</strong> parcels with an average<br />

size <strong>of</strong> 451 ha. There are approximately 50 000 large-scale commercial farmers,<br />

who are predominantly, but not exclusively, drawn from <strong>the</strong> white population.<br />

In 2000, <strong>the</strong>y exported products worth about R 16 billion, or nearly 10 percent<br />

<strong>of</strong> South Africa ’s total exports.<br />

Cattle are predominant in <strong>the</strong> eastern parts <strong>of</strong> <strong>the</strong> country where <strong>the</strong> rangel<strong>and</strong>s<br />

generally have a higher carrying capacity . Beef-cattle ranching is <strong>the</strong><br />

largest contributor to commercial farming income <strong>and</strong> <strong>the</strong> major breeds are<br />

Brahman , Afrikaner <strong>and</strong> Simmentaler . Sheep are largely concentrated in <strong>the</strong><br />

drier west, <strong>and</strong> also in <strong>the</strong> sou<strong>the</strong>ast. Goats are more widely distributed <strong>and</strong><br />

<strong>the</strong> main breeds are <strong>the</strong> Boergoat <strong>and</strong> <strong>the</strong> Angora . Grazing livestock are raised<br />

under extensive ranching conditions, relying on natural pasture , occasionally<br />

supplemented by protein <strong>and</strong> mineral licks. Ostriches are farmed in <strong>the</strong> sou<strong>the</strong>rn<br />

parts <strong>of</strong> <strong>the</strong> country, <strong>and</strong> also utilize natural vegetation , supplemented by<br />

fodders <strong>and</strong> concentrates.<br />

The commercial areas are divided into fenced ranches (farms ) <strong>and</strong> <strong>the</strong>n<br />

fur<strong>the</strong>r subdivided into a number <strong>of</strong> paddocks (camps). Rotational grazing is<br />

normally practised. Compared with <strong>the</strong> communal areas, stocking rates tend to<br />

be more conservative <strong>and</strong> are adjusted by <strong>the</strong> rancher to track production.<br />

Communal <strong>and</strong> subsistence sector<br />

The communal areas occupy about 13 percent <strong>of</strong> <strong>the</strong> total farming area <strong>of</strong><br />

South Africa <strong>and</strong> hold approximately 52 percent <strong>of</strong> <strong>the</strong> total cattle population,<br />

72 percent <strong>of</strong> <strong>the</strong> goats <strong>and</strong> 17 percent <strong>of</strong> <strong>the</strong> sheep (see Table 3.2). They differ<br />

markedly from <strong>the</strong> freehold areas in <strong>the</strong>ir production systems , objectives <strong>and</strong><br />

TABLE 3.5<br />

L<strong>and</strong> areas (million hectares) <strong>of</strong> <strong>the</strong> major l<strong>and</strong> use types in South Africa .<br />

Total area Farm l<strong>and</strong><br />

Potential<br />

arable<br />

Arable l<strong>and</strong><br />

used<br />

Grazing<br />

l<strong>and</strong><br />

Nature<br />

conservation<br />

Forestry O<strong>the</strong>r<br />

Developing<br />

agriculture<br />

17 14.4 2.5 N/A 11.9 0.78 0.25 1.5<br />

Commercial<br />

agriculture<br />

105 86.0 14.1 12.9 71.9 11.0 1.2 6.8<br />

NOTE: N/A = not available.<br />

SOURCE: Development Bank <strong>of</strong> Sou<strong>the</strong>rn Africa, 1991.


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 91<br />

property rights ; only <strong>the</strong> cropping areas are normally allocated to individual<br />

households, while <strong>the</strong> grazing areas tend to be shared by members <strong>of</strong> a<br />

community. The communal sector has a substantially higher human population<br />

per unit area than <strong>the</strong> freehold sector, <strong>and</strong> has suffered from lower levels <strong>of</strong><br />

state intervention. Investments in infrastructure (access roads, fences , water<br />

provision , power supply, dipping facilities) have not kept pace with those in<br />

freehold areas, where regional authorities have orchestrated <strong>the</strong> maintenance<br />

<strong>of</strong> roads <strong>and</strong> fences. The production systems in <strong>the</strong> communal areas are based<br />

on pastoralism <strong>and</strong> agropastoralism, <strong>and</strong> <strong>the</strong> majority <strong>of</strong> households are<br />

subsistence-based <strong>and</strong> labour intensive, with limited use <strong>of</strong> technology <strong>and</strong><br />

external inputs. The outputs <strong>and</strong> objectives <strong>of</strong> livestock ownership are more<br />

diverse than in commercial livestock production, <strong>and</strong> include draught power,<br />

milk , dung, meat , cash income <strong>and</strong> capital storage, as well as socio cultural<br />

factors. The combination <strong>of</strong> objectives tends to be met by a policy <strong>of</strong> herd<br />

maximization ra<strong>the</strong>r than turnover; hence even <strong>the</strong> large herd owners tend to<br />

sell only to meet cash needs, leading to higher stocking rates than in <strong>the</strong> freehold<br />

system. The mean l<strong>and</strong> parcel size (612 ha) in <strong>the</strong> former homel<strong>and</strong>s <strong>of</strong> Ciskei<br />

<strong>and</strong> Transkei is greater than that <strong>of</strong> <strong>the</strong> freehold areas <strong>of</strong> <strong>the</strong> Western (243 ha) or<br />

Eastern Cape (451 ha), reflecting <strong>the</strong> free-ranging nature <strong>of</strong> livestock.<br />

Communal area livestock production contributes 5–6 percent <strong>of</strong> formal<br />

agricultural output <strong>and</strong> is mainly confined to <strong>the</strong> eastern <strong>and</strong> nor<strong>the</strong>rn part <strong>of</strong><br />

<strong>the</strong> country. However, herd sizes vary considerably between <strong>and</strong> within regions,<br />

<strong>and</strong> livestock ownership is strongly skewed, with a small number <strong>of</strong> people<br />

owning large herds <strong>and</strong> <strong>the</strong> majority owning few animals or none at all.<br />

Stock numbers tend to be unevenly distributed across <strong>the</strong> l<strong>and</strong>scape in<br />

communal areas. There is a tendency for high concentrations <strong>of</strong> people <strong>and</strong><br />

livestock near to permanent water, while o<strong>the</strong>r areas remain potentially<br />

underutilized due to a lack <strong>of</strong> water. In <strong>the</strong> rugged terrain <strong>of</strong> Ciskei, Transkei<br />

<strong>and</strong> Kwa-Zulu Natal, livestock spend <strong>the</strong> longest part <strong>of</strong> <strong>the</strong> day on <strong>the</strong> interfluvial<br />

ridges. Animal numbers tend to be geared more to <strong>the</strong> quantity <strong>of</strong><br />

reliable water than to <strong>the</strong> reliable quantity <strong>of</strong> forage, hence drought effects tend<br />

to be more severe in communal than in commercial areas.<br />

Mixed livestock ownership is more common in communal than freehold<br />

areas. Cattle are <strong>the</strong> generally preferred livestock species, but economic<br />

<strong>and</strong> ecological conditions <strong>of</strong>ten limit <strong>the</strong> possibilities for cattle ownership.<br />

Ownership <strong>of</strong> livestock is skewed, with 5 percent <strong>of</strong> residents owning 10<br />

or more cattle in rural villages in <strong>the</strong> former Ciskei (Ainslie et al., 1997),<br />

while 67 percent <strong>of</strong> households own no cattle. In <strong>the</strong> case <strong>of</strong> sheep , 7 percent<br />

<strong>of</strong> households own 10 or more, with 82 percent owning none. For goats ,<br />

18 percent <strong>of</strong> households own 10 or more, while 43 percent own none.<br />

Cattle , sheep <strong>and</strong> goats are herded during <strong>the</strong> cropping season in cropping<br />

areas, <strong>and</strong> where <strong>the</strong>re are predator or <strong>the</strong>ft risks in o<strong>the</strong>r areas, but herding<br />

tends to be relaxed during <strong>the</strong> dry season , during which animals have access to


92<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

crop residues . In <strong>the</strong> nor<strong>the</strong>rn communal areas, many larger herdowners have<br />

“cattle posts” away from <strong>the</strong> village <strong>and</strong> crop l<strong>and</strong>s <strong>and</strong> maintain most <strong>of</strong> <strong>the</strong>ir<br />

animals <strong>the</strong>re, keeping only <strong>the</strong> milk <strong>and</strong> draught animals at <strong>the</strong> village during<br />

<strong>the</strong> wet season. Pigs <strong>and</strong> poultry in <strong>the</strong> communal areas are generally free<br />

ranging <strong>and</strong> scavenging, although some owners practise housing <strong>and</strong> feeding.<br />

The exclusion <strong>of</strong> fire from <strong>the</strong> savannah regions under communal<br />

management has encouraged bush encroachment . In <strong>the</strong> semi -arid regions<br />

<strong>of</strong> Mpumalanga, <strong>the</strong> Nor<strong>the</strong>rn Province <strong>and</strong> <strong>the</strong> North West province, fire<br />

has generally been excluded. Cutting large trees for fuel or building material<br />

has resulted in coppice growth (sprouting) <strong>and</strong> has stimulated shrubbiness.<br />

Consequently, large areas <strong>of</strong> <strong>the</strong> medium-rainfall savannahs have become<br />

severely bush infested, to <strong>the</strong> detriment <strong>of</strong> <strong>the</strong> grazing potential for cattle<br />

<strong>and</strong> sheep . In <strong>the</strong> subhumid communal areas <strong>of</strong> Kwa-Zulu Natal <strong>and</strong> <strong>the</strong><br />

Transkei, fire is used to stimulate grass production during <strong>the</strong> early summer ,<br />

<strong>and</strong> this maintains a grassl<strong>and</strong> state along <strong>the</strong> coastal region (Shackleton,<br />

1991).<br />

AUTHORITIES RESPONSIBLE FOR MANAGEMENT<br />

The National Department <strong>of</strong> Agriculture within <strong>the</strong> Ministry <strong>of</strong> Agriculture<br />

<strong>and</strong> L<strong>and</strong> Affairs is <strong>the</strong> key institution dealing with forage resources . The<br />

National Department <strong>of</strong> Agriculture is divided into five directorates, one <strong>of</strong><br />

which deals directly with rangel<strong>and</strong> <strong>and</strong> pasture resources. The L<strong>and</strong> <strong>and</strong><br />

Resource Management Directorate is responsible for <strong>the</strong> implementation<br />

<strong>of</strong> <strong>the</strong> Conservation <strong>of</strong> Agricultural Resources, Act No. 43 <strong>of</strong> 1984. This<br />

act empowers <strong>the</strong> head <strong>of</strong> <strong>the</strong> Directorate to intervene when <strong>the</strong> grassl<strong>and</strong><br />

resources <strong>of</strong> <strong>the</strong> country are perceived to be threatened by herbivory, alien<br />

infestation or cultivation . In addition, each <strong>of</strong> <strong>the</strong> nine provinces has a division<br />

or directorate that provides research <strong>and</strong> management advice on rangel<strong>and</strong><br />

<strong>and</strong> pasture resources. These sections provide support to extension services<br />

<strong>and</strong> planners, establish st<strong>and</strong>ards, develop capacity , <strong>and</strong> conduct research<br />

appropriate to <strong>the</strong> needs <strong>of</strong> that province.<br />

Market systems<br />

Marketing <strong>of</strong> grassl<strong>and</strong> products is conducted through a commodity-based<br />

marketing system. Since 1994, <strong>the</strong> so-called Control Boards <strong>of</strong> <strong>the</strong> singlechannel<br />

marketing system have been disb<strong>and</strong>ed, <strong>and</strong> a free market system<br />

prevails. Each commodity has had to develop its own competitive marketing<br />

framework. For example, wool is marketed through numerous brokers,<br />

including Cape Mohair & Wool <strong>and</strong> BKB. Brokers are able to buy direct<br />

from <strong>the</strong> producer <strong>and</strong> <strong>of</strong>fer <strong>the</strong> product for sale at auction. Generally, auction<br />

prices are determined by <strong>the</strong> international wool price <strong>and</strong> local markets have<br />

little influence. Negative changes in <strong>the</strong> exchange rate (R<strong>and</strong> against US$)<br />

advantages those farmers who produce export-quality wool. In 2000, <strong>the</strong> greasy


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 93<br />

wool clip was 52 671 t <strong>and</strong> South Africa produced 25 percent <strong>of</strong> Africa’s wool<br />

crop. Approximately 80 percent <strong>of</strong> <strong>the</strong> South African wool crop is processed<br />

locally to “tops” level, making it suitable for export to <strong>the</strong> European market.<br />

Beef <strong>and</strong> mutton marketing has also recently been released from <strong>the</strong> controlled<br />

marketing environment <strong>of</strong> <strong>the</strong> previous regime. In 2000, South Africa’s mutton<br />

production amounted to 114 000 t, most <strong>of</strong> which was consumed locally.<br />

L<strong>and</strong>forms <strong>and</strong> agro-ecological zones<br />

The country has five main physiographic regions, as discussed earlier.<br />

Based on bioclimatic <strong>and</strong> growth form information, Ru<strong>the</strong>rford <strong>and</strong><br />

Westfall (1986) defined six biomes in South Africa . An improvement has been<br />

suggested by Low <strong>and</strong> Rebelo (1996), who fur<strong>the</strong>r subdivided <strong>the</strong> savannah<br />

biome to include <strong>the</strong> category “Thicket ”, which occurs predominantly in <strong>the</strong><br />

river valleys <strong>of</strong> <strong>the</strong> eastern <strong>and</strong> sou<strong>the</strong>astern coastal region (Figure 3.6).<br />

BIOMES<br />

The areas <strong>of</strong> <strong>the</strong> various biomes are given in Table 3.6.<br />

Figure 3.6<br />

The biomes <strong>of</strong> South Africa .<br />

SOURCE: After Ru<strong>the</strong>rford <strong>and</strong> Westfall, 1986; Low <strong>and</strong> Rebelo, 1996.<br />

TABLE 3.6<br />

Area occupied by each <strong>of</strong> <strong>the</strong> biomes in South Africa (excluding Lesotho <strong>and</strong><br />

Swazil<strong>and</strong>).<br />

Biome Area (km2 ) As a percentage<br />

Grassl<strong>and</strong> 295 233 24.27<br />

Savannah 419 009 34.44<br />

Nama-karoo 297 836 24.48<br />

Succulent Karoo 82 589 6.79<br />

Thicket 41 818 3.44<br />

Fynbos 78 570 6.46<br />

Forest 1 479 0.12<br />

Total 1 216 536 100


94<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Grassl<strong>and</strong><br />

The grassl<strong>and</strong> biome is situated mainly in <strong>the</strong> central, high lying regions <strong>of</strong><br />

South Africa (Figure 3.6) (O’Connor <strong>and</strong> Bredenkamp, 1997). The biome<br />

spans a precipitation gradient from ca. 400 to >1 200 mm/yr, a temperature<br />

gradient from frost-free to snow-bound in winter , ranges in altitude from sea<br />

level to >3 300 metres <strong>and</strong> occurs on a spectrum <strong>of</strong> soil types , from humic clays<br />

to poorly structured s<strong>and</strong>s (O’Connor <strong>and</strong> Bredenkamp, 1997). Although <strong>the</strong><br />

general structure is fairly uniform, <strong>the</strong>re is a wide range in floristic composition,<br />

associated environmental variables, dynamics <strong>and</strong> management options. There<br />

is a strong dominance <strong>of</strong> hemicryptophytes <strong>of</strong> <strong>the</strong> Poaceae. St<strong>and</strong>ing biomass<br />

is moisture dependant <strong>and</strong> decreases with <strong>the</strong> rainfall gradient. Herbivory from<br />

domestic <strong>and</strong> wild herbivores has a decisive impact on st<strong>and</strong>ing biomass <strong>and</strong><br />

species composition.<br />

The biome was originally defined on climatic factors <strong>and</strong> is limited to summer<br />

<strong>and</strong> strong summer rainfall areas, with a summer aridity index between<br />

2.0 <strong>and</strong> 3.9 (Ru<strong>the</strong>rford <strong>and</strong> Westfall, 1986). Frost is common, occurring for<br />

30–180 days/yr. The most common soil in <strong>the</strong> biome, accounting for 50 percent<br />

<strong>of</strong> <strong>the</strong> area, is <strong>the</strong> red-yellow-grey latosol plinthic catena. This is followed by<br />

black <strong>and</strong> red clays <strong>and</strong> solonetzic soils, freely drained latosols <strong>and</strong> black clays<br />

(Ru<strong>the</strong>rford <strong>and</strong> Westfall, 1986).<br />

Acocks (1953, 1988) defined thirteen pure grassl<strong>and</strong> types <strong>and</strong> six “false”<br />

or anthropogenically-induced grassl<strong>and</strong>s, ranging from <strong>the</strong> so-called “sweet ”<br />

grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> semi -arid regions <strong>of</strong> <strong>the</strong> Eastern Cape, to <strong>the</strong> “sour ” grassl<strong>and</strong>s<br />

<strong>of</strong> <strong>the</strong> high-rainfall regions <strong>of</strong> <strong>the</strong> Drakensberg. There are now six recognizable<br />

grassl<strong>and</strong> floristic regions (O’Connor <strong>and</strong> Bredenkamp, 1997), reflecting a<br />

topo-moisture gradient from <strong>the</strong> dry western region to <strong>the</strong> eastern mountains<br />

<strong>and</strong> escarpment (Table 3.7). Following <strong>the</strong> completion <strong>of</strong> a revised vegetation<br />

map <strong>of</strong> South Africa (National Botanical Institute, 2004), sixty-seven grassl<strong>and</strong><br />

units have been described on <strong>the</strong> basis <strong>of</strong> floristic <strong>and</strong> climatic uniqueness,<br />

including, for example, <strong>the</strong> Bedford Dry Grassl<strong>and</strong> (Plate 3.2).<br />

TABLE 3.7<br />

Regions within <strong>the</strong> grassl<strong>and</strong> biome .<br />

Region Name Dominant taxa Geology Soil type<br />

Altitude (m) <strong>and</strong><br />

Precipitation (mm)<br />

Central inl<strong>and</strong> plateau Themeda tri<strong>and</strong>ra ,<br />

s<strong>and</strong>stone, shale deep red, yellow, 1 400–1 600 m<br />

Eragrostis curvula .<br />

eutrophic<br />

600–700 mm<br />

Dry western region Eragrostis lehmanniana , mudstone, shale shallow aridosols 1 200–1 400 m<br />

(see Plate 3.3) E. obtusa , Stipagrostis obtusa .<br />

450–600 mm<br />

Nor<strong>the</strong>rn areas Trachypogon spicatus ,<br />

quartzites, shale, shallow, lithosols 1 500–1 600 m<br />

Diheteropogon amplectans . <strong>and</strong>esitic lava<br />

650–750 mm<br />

Eastern inl<strong>and</strong> plateau Themeda tri<strong>and</strong>ra , Aristida s<strong>and</strong>stones <strong>and</strong> deep s<strong>and</strong> loam 1 600–1 800 m<br />

junciformis , Eragrostis plana. shales<br />

700–950 mm<br />

Eastern mountains<br />

<strong>and</strong> escarpment<br />

Hyparrhenia hirta ,<br />

Aristida diffusa .<br />

Eastern lowl<strong>and</strong>s Hyparrhenia hirta ,<br />

Sporobolus pyramidalis .<br />

SOURCE: O’Connor <strong>and</strong> Bredenkamp, 1997.<br />

Drakensberg<br />

complex<br />

shallow lithosols 1 650–3 480 m<br />

>1 000 mm<br />

dolerite shallow lithosols 1 200–1 400 m<br />

850 mm


A.R. PALMER<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 95<br />

Plate 3.2<br />

The Bedford Dry Grassl<strong>and</strong> Unit.<br />

The concepts “sweet ” <strong>and</strong> “sour ” refer to <strong>the</strong> palatability <strong>of</strong> <strong>the</strong> grasses,<br />

dwarf shrubs <strong>and</strong> trees to domestic livestock. Although difficult to define<br />

in a strict scientific sense, <strong>the</strong>se terms have retained <strong>the</strong>ir use throughout<br />

<strong>the</strong> farming community, being applied to both individual species <strong>and</strong> to<br />

components <strong>of</strong> <strong>the</strong> l<strong>and</strong>scape . Sweet-veldt usually occurs on high nutrient<br />

status soils under arid <strong>and</strong> semi -arid conditions. These soils are generally<br />

derived from <strong>the</strong> shales, mudstones <strong>and</strong> s<strong>and</strong>stones <strong>of</strong> <strong>the</strong> Karoo Supergroup.<br />

Sour-veldt is associated with acid soils <strong>of</strong> quartzite <strong>and</strong> <strong>and</strong>esitic origin, <strong>and</strong><br />

occurs in higher (>600 mm) precipitation <strong>and</strong> high elevation (>1 400 mm)<br />

areas. Ellery, Scholes <strong>and</strong> Scholes (1995) have suggested that <strong>the</strong> concept is<br />

driven by <strong>the</strong> C:N ratios <strong>of</strong> <strong>the</strong> grasses <strong>and</strong> that <strong>the</strong> sweet-veldt has a lower<br />

C:N ratio than sour-veldt.<br />

Savannah<br />

Vegetation dynamics in <strong>the</strong> African savannah are driven by a number <strong>of</strong><br />

variables, including rainfall amount, rainfall uncertainty, frost, fire , herbivory,<br />

ambient CO2 levels <strong>and</strong> soil moisture. Depending on <strong>the</strong> seasonal environmental<br />

conditions <strong>and</strong> management history, a grassl<strong>and</strong> at <strong>the</strong> boundary <strong>of</strong> <strong>the</strong> savannah<br />

biome can change from a monolithic physiognomy, to one dominated by shrubs<br />

<strong>and</strong> trees. O’Connor <strong>and</strong> Bredenkamp (1997) summarize five hypo<strong>the</strong>ses to<br />

account for <strong>the</strong> possible exclusion <strong>of</strong> woody elements from grassl<strong>and</strong>s. In this<br />

dynamic environment, where <strong>the</strong> grassl<strong>and</strong>s abut <strong>the</strong> savannah, it is necessary<br />

to provide some information on <strong>the</strong> savannah biome.


96<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 3.3<br />

Arid grassl<strong>and</strong>s <strong>of</strong> sou<strong>the</strong>rn Africa occur in sou<strong>the</strong>rn Namibia <strong>and</strong> <strong>the</strong><br />

northwestern portions <strong>of</strong> South Africa . Dominant genera include Stipagrostis ,<br />

Eragrostis <strong>and</strong> Enneapogon .<br />

The savannah biome comprises <strong>the</strong> nor<strong>the</strong>rn <strong>and</strong> eastern portions <strong>of</strong><br />

South Africa , with <strong>the</strong> arid savannah extending into <strong>the</strong> sou<strong>the</strong>rn Kalahari.<br />

The savannah biome is <strong>the</strong> region where large portions <strong>of</strong> <strong>the</strong> national beef<br />

production occur under extensive rangel<strong>and</strong> conditions. The flora comprises a<br />

woody layer (mainly single-stemmed, seasonally deciduous, trees <strong>and</strong> shrubs),<br />

with a ground layer <strong>of</strong> grasses <strong>and</strong> forbs. The st<strong>and</strong>ing biomass <strong>of</strong> shrubs<br />

<strong>and</strong> trees is 16–20 t/ha (Ru<strong>the</strong>rford, 1982). The dominant grasses are C4 <strong>and</strong><br />

form <strong>the</strong> important production component for domestic livestock. A strong<br />

summer seasonality in <strong>the</strong> rainfall encourages woody shrub production. There<br />

is strong evidence <strong>of</strong> woody shrub encroachment throughout this <strong>and</strong> o<strong>the</strong>r<br />

biomes (H<strong>of</strong>fman <strong>and</strong> O’Connor, 1999). A number <strong>of</strong> explanations have been<br />

suggested for <strong>the</strong> increase in woody shrub biomass, including (1) a reduction<br />

in fire frequency (Trollope, 1980); (2) <strong>the</strong> removal <strong>of</strong> grass biomass by domestic<br />

herbivory, with <strong>the</strong> resultant success <strong>of</strong> woody shrubs (du Toit, 1967); <strong>and</strong><br />

(3) <strong>the</strong> C3 shrubs having a competitive advantage over C4 grasses under elevated<br />

CO2 conditions (Bond <strong>and</strong> van Wilgen, 1996). Graziers attempt to control <strong>the</strong><br />

woody encroachment using a number <strong>of</strong> approaches, including clear felling;<br />

burning followed by intensive browsing by goats ; <strong>and</strong> chemical control. The<br />

last-named seems to be <strong>the</strong> favoured approach, with an estimated R 10 million<br />

spent annually on herbicides. The biome is utilized by both commercial <strong>and</strong><br />

communal graziers. In general, <strong>the</strong> woody encroachment problems are more<br />

severe in l<strong>and</strong> under communal tenure , although multiple use ensures that<br />

wood is used for fuel, construction <strong>and</strong> traditional purposes.<br />

A.R. PALMER


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 97<br />

Nama-karoo<br />

The Nama-karoo biome covers much <strong>of</strong> <strong>the</strong> central <strong>and</strong> western regions <strong>of</strong> <strong>the</strong><br />

country. The biome is dominated by a steppe-type vegetation , comprising a<br />

mixture <strong>of</strong> shrubs, dwarf shrubs <strong>and</strong> annual <strong>and</strong> perennial grasses. The biome<br />

is associated with <strong>the</strong> moderate rainfall regions (250-450 mm per annum) <strong>and</strong><br />

is suited to commercial sheep <strong>and</strong> goat production. The summer seasonality <strong>of</strong><br />

<strong>the</strong> rainfall in <strong>the</strong> eastern parts <strong>of</strong> <strong>the</strong> biome means that <strong>the</strong>re is <strong>of</strong>ten abundant<br />

grass production during <strong>the</strong> growing season. Graziers attempt to optimize<br />

production by sparing or resting grassy dwarf shrubl<strong>and</strong> in <strong>the</strong> wet season.<br />

Herbivory by domestic livestock during <strong>the</strong> growing season has been shown<br />

to reduce grass cover <strong>and</strong> promote <strong>the</strong> growth <strong>of</strong> larger shrubs (species <strong>of</strong><br />

Rhus , Acacia <strong>and</strong> Euclea ) <strong>and</strong> dwarf shrubs. In <strong>the</strong> winter months, <strong>the</strong> dwarf<br />

shrubs maintain <strong>the</strong>ir crude protein at around 8 percent, providing excellent<br />

forage. The nutrient-rich substrata provided by <strong>the</strong> mudstones, s<strong>and</strong>stones <strong>and</strong><br />

dolerites mean that this production can be considered sustainable . There were<br />

earlier suggestions that large-scale structural transformations were taking place<br />

in this biome (Acocks, 1964), with <strong>the</strong> dwarf shrubs supposedly spreading into<br />

<strong>the</strong> adjoining grassl<strong>and</strong>s <strong>of</strong> central Free State. This process has not continued in<br />

<strong>the</strong> manner envisaged <strong>and</strong> <strong>the</strong> relatively high rainfall <strong>of</strong> <strong>the</strong> 1990s has promoted<br />

grass production in <strong>the</strong> eastern portions <strong>of</strong> <strong>the</strong> biome. In <strong>the</strong> western portions<br />

<strong>of</strong> <strong>the</strong> biome, <strong>the</strong>re is alarming evidence <strong>of</strong> woody encroachment , with two<br />

species in particular (Acacia mellifera <strong>and</strong> Rhigozum trichotomum ) increasing<br />

in density <strong>and</strong> cover in regions with a long history <strong>of</strong> domestic herbivory.<br />

Production <strong>of</strong> mutton <strong>and</strong> fibre continues to thrive in <strong>the</strong> Nama-karoo. During<br />

<strong>the</strong> recent past <strong>the</strong>re has also been an increase in <strong>the</strong> area <strong>of</strong> l<strong>and</strong> set aside for<br />

informal conservation , with many farmers capitalizing on <strong>the</strong> unique l<strong>and</strong>scapes<br />

<strong>and</strong> indigenous fauna <strong>of</strong> <strong>the</strong> biome to develop ecotourism operations.<br />

Important indigenous herbivores, which contribute to red meat production,<br />

include springbok, blesbok, kudu, gemsbok <strong>and</strong> wildebeest.<br />

Thicket<br />

The thicket biome occurs in <strong>the</strong> drainage lines <strong>and</strong> ridges <strong>of</strong> <strong>the</strong> sou<strong>the</strong>astern<br />

coastal region <strong>and</strong> inl<strong>and</strong> to <strong>the</strong> Great Escarpment. The thicket comprises a<br />

dense cover <strong>of</strong> succulent shrubs, woody shrubs <strong>and</strong> small trees, with a height<br />

<strong>of</strong> 1.5–3.0 m. The woody shrubs are multistemmed, seasonally-deciduous, C3<br />

plants. In <strong>the</strong> xeric portions <strong>of</strong> <strong>the</strong> thicket biome (300–450 mm/yr precipitation ),<br />

<strong>the</strong>re is a large component <strong>of</strong> crassulacean acid metabolism (CAM )-type leaf<br />

succulents (e.g. Portulacaria afra ), stem succulents (Euphorbia spp.) <strong>and</strong> many<br />

species <strong>of</strong> small succulent shrubs (e.g. species <strong>of</strong> Aloe <strong>and</strong> Crassula ). Important<br />

grass species that contribute significantly to cattle production include Panicum<br />

maximum , P. deustum , Digitaria eriantha <strong>and</strong> Setaria sphacelata . Although<br />

<strong>the</strong> thicket biome does not contain extensive grassl<strong>and</strong>s, clearing <strong>of</strong> thicket is<br />

carried out by both freehold <strong>and</strong> communal graziers to promote grassl<strong>and</strong>s.


98<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

These grassl<strong>and</strong>s provide high quality, year-round grazing , as <strong>the</strong> shale-derived<br />

soils associated with thicket are rich in nutrients.<br />

Two important thicket types are recognized: succulent thicket <strong>and</strong> mesic<br />

thicket. Succulent thicket occurs under semi -arid conditions (300–450 mm/<br />

yr) <strong>and</strong> is dominated by leaf- <strong>and</strong> stem-succulent shrubs (Portulacaria afra ,<br />

Euphorbia bothae , E. ledienii , E. coerulescens , E. tetragona , E. triangularis ,<br />

numerous Crassula spp. <strong>and</strong> Aloe spp. ). Mesic thicket contains fewer succulents<br />

<strong>and</strong> occurs under higher rainfall (>450 mm/yr) conditions. The cover by woody<br />

shrubs is usually continuous , but <strong>the</strong>y seldom exceed 4 m in height.<br />

Short succulent thicket occurs in <strong>the</strong> low elevation (300–350 m) inl<strong>and</strong> river<br />

valleys <strong>of</strong> <strong>the</strong> Great Fish, Bushmans, Sundays <strong>and</strong> Gamtoos rivers. Here <strong>the</strong><br />

Ecca series mudstones provide a nutrient-rich substratum. The soils are shallow,<br />

comprising arid lithosols derived from <strong>the</strong> basement rock. The valley climate is<br />

hot <strong>and</strong> dry , with extremely high summer maximum temperatures (45°C) <strong>and</strong><br />

low winter minimum temperatures. In <strong>the</strong> Great Fish river valley, <strong>the</strong> structure<br />

<strong>and</strong> composition <strong>of</strong> <strong>the</strong> “pristine” form <strong>of</strong> short succulent thicket is dominated<br />

by Portulacaria afra , Rhigozum obovatum <strong>and</strong> Euphorbia bothae , in small (3–4 m<br />

diameter) clumps. The vegetation in <strong>the</strong> clumps may contain emergant shrubs (e.g.<br />

Boscia oleoides ), but <strong>the</strong>y are usually


A.R. PALMER<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 99<br />

reach 8–10 m in height, are eaten by domestic herbivores only when short.<br />

When <strong>the</strong> endangered black rhinoceros were recently re-introduced to this<br />

region, adult animals knocked <strong>the</strong> tall succulents down to eat <strong>the</strong> new leaves at<br />

<strong>the</strong> tops <strong>of</strong> <strong>the</strong> shrubs.<br />

The mesic thicket type contains far fewer leaf <strong>and</strong> stem succulents <strong>and</strong><br />

is composed primarily <strong>of</strong> multistemmed woody shrubs such as Scutia myrtina<br />

, Olea europea var. africana , Rhus longispina , R. incisa <strong>and</strong> R. undulata .<br />

Succulent taxa include numerous species <strong>of</strong> <strong>the</strong> genera Aloe, Euphorbia ,<br />

Gasteria <strong>and</strong> Crassula , although <strong>the</strong>se growth forms do not represent a major<br />

component <strong>of</strong> <strong>the</strong> st<strong>and</strong>ing biomass.<br />

Succulent karoo<br />

The succulent karoo biome occurs in <strong>the</strong> winter rainfall regions <strong>of</strong> <strong>the</strong> sou<strong>the</strong>rn<br />

<strong>and</strong> southwestern portions <strong>of</strong> South Africa . The flora <strong>of</strong> <strong>the</strong> biome comprises<br />

mainly shrubs (0.5–1.5 m) <strong>and</strong> dwarf shrubs (


100<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

high floristic diversity, such as Richtersveldt <strong>and</strong> Namaqual<strong>and</strong>, receive a large<br />

portion <strong>of</strong> <strong>the</strong>ir precipitation in <strong>the</strong> form <strong>of</strong> coastal advective fog during <strong>the</strong><br />

coolest months <strong>of</strong> <strong>the</strong> year. There are many species in two succulent families<br />

(Crassulaceae <strong>and</strong> Mesembryan<strong>the</strong>caceae), numerous endemic taxa (e.g. several<br />

species <strong>of</strong> <strong>the</strong> genus Pachypodium) <strong>and</strong> distinctive growth forms (leaf <strong>and</strong> stem<br />

succulents). This diversity has made <strong>the</strong> biome ideal for <strong>the</strong> development <strong>of</strong> an<br />

ecotourism industry that promotes <strong>the</strong> unique floristic character <strong>of</strong> <strong>the</strong> region.<br />

The arid conditions mean that <strong>the</strong> region is most suited to extensive livestock<br />

production <strong>and</strong> <strong>the</strong> flora <strong>of</strong> <strong>the</strong> biome has been subjected to herbivory from<br />

domestic goats <strong>and</strong> ostriches. These herbivores form <strong>the</strong> main suite <strong>of</strong> animals<br />

responsible for much <strong>of</strong> <strong>the</strong> direct impact on <strong>the</strong> vegetation <strong>of</strong> <strong>the</strong> biome. In<br />

recent times <strong>the</strong>re have been known changes in <strong>the</strong> species composition, with<br />

some l<strong>and</strong>scapes currently dominated by species unpalatable (to domestic<br />

livestock), such as Pteronia incana <strong>and</strong> P. pallens. The productivity <strong>of</strong> <strong>the</strong><br />

biome has been significantly affected by <strong>the</strong>se changes <strong>and</strong> many graziers now<br />

depend on irrigated pastures to sustain livestock production.<br />

Fynbos<br />

The fynbos biome occurs in <strong>the</strong> winter rainfall regions <strong>of</strong> <strong>the</strong> sou<strong>the</strong>rn <strong>and</strong><br />

southwestern portions <strong>of</strong> South Africa , being associated with <strong>the</strong> moderate to<br />

high rainfall (450–1 000 mm) region. The vegetation <strong>of</strong> <strong>the</strong> biome is dominated<br />

by sclerophyllous shrubs <strong>and</strong> trees, with rich floristic diversity, but has little<br />

or no forage value. Much <strong>of</strong> <strong>the</strong> natural vegetation has been cleared to enable<br />

wheat, oats, rye, barley, canola <strong>and</strong> lupin production. The crop residues<br />

provide large areas <strong>of</strong> post-harvesting stubble for sheep production during<br />

<strong>the</strong> dry summer months. Within <strong>the</strong> biome, irrigated pastures are also major<br />

contributors to sheep production.<br />

Forest<br />

Forest occurs in patches along <strong>the</strong> sou<strong>the</strong>rn coastal zone, in <strong>the</strong> cooler sou<strong>the</strong>rn<br />

facing slopes <strong>of</strong> <strong>the</strong> Great Escarpment <strong>and</strong> in <strong>the</strong> high-rainfall regions <strong>of</strong> <strong>the</strong><br />

Drakensberg. Forest is not significant in livestock production in South Africa .<br />

PASTORAL AND AGRICULTURAL SYSTEMS<br />

The main forage resource for livestock in South Africa is rangel<strong>and</strong> grazing ,<br />

with 68.6 percent <strong>of</strong> <strong>the</strong> area being used for livestock grazing <strong>and</strong> a fur<strong>the</strong>r<br />

9.6 percent used by wild herbivores. In <strong>the</strong> higher-rainfall zones , crop residues<br />

are a very important feed supplement in both freehold <strong>and</strong> communal areas<br />

during <strong>the</strong> dry season , when range grazing is scarce. In freehold areas, many<br />

livestock farmers plant fodder species as dryl<strong>and</strong> pasture . Irrigated fodder<br />

production is important in freehold areas, but varies from season to season,<br />

as cash crops are more favoured. In 1980, 468 000 ha were under irrigated<br />

cultivation with alfalfa, but this had declined to 214 000 ha in 1987. In times


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 101<br />

<strong>of</strong> drought , South Africa imports maize from <strong>the</strong> international market. There<br />

are some zero-grazing dairy operations near large cities, <strong>and</strong> three large<br />

commercial feedlots are found on <strong>the</strong> high-veldt.<br />

Veldt grazing<br />

The principal agro-ecological units within South Africa are illustrated in <strong>the</strong><br />

generalized image <strong>of</strong> <strong>the</strong> Acocks (1953) map <strong>of</strong> <strong>the</strong> Veldt Types <strong>of</strong> South Africa<br />

(Figure 3.7). Acocks (1953) provided a unique perspective on <strong>the</strong> classification<br />

<strong>and</strong> distribution <strong>of</strong> <strong>the</strong> agro-economic divisions <strong>of</strong> vegetation in South Africa.<br />

This map serves to illustrate <strong>the</strong> broad floristic diversity <strong>of</strong> <strong>the</strong> vegetation<br />

<strong>and</strong> continues to remain an important classification for graziers. There are 70<br />

Veldt Types, with a primary focus on those types most useful for livestock<br />

production. As this diversity is reflected in composition, structure, phenology<br />

<strong>and</strong> production, it is extremely difficult to provide broad generalizations<br />

concerning <strong>the</strong> management options for each veldt type , most <strong>of</strong> which have<br />

received some research attention, with <strong>the</strong> mesic grass -veldt – with its higher<br />

Figure 3.7<br />

Veldt types <strong>of</strong> South Africa , as described in Acocks, 1953.


102<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

production potential <strong>and</strong> greater economic importance – being given <strong>the</strong><br />

greatest attention. The research focus has been on supporting government<br />

intervention in three major areas.<br />

The first area receiving government research support is <strong>the</strong> estimation <strong>of</strong><br />

sustainable production (carrying capacity ), which was deemed important, as<br />

government attempted to enforce restrictions on <strong>the</strong> numbers <strong>of</strong> livestock on<br />

freehold properties. Grazing trials (mainly on-station), attempted to determine<br />

sustainable production levels, using a number <strong>of</strong> ecological <strong>and</strong> animal<br />

performance indices. Ecological indices that were measured to assess livestock<br />

impact on <strong>the</strong> rangel<strong>and</strong> included plant species composition, plant vigour <strong>and</strong><br />

biomass production. In general, on-station trials did not permit <strong>the</strong> application<br />

<strong>of</strong> extreme treatments that would be appropriate to test <strong>the</strong> ecosystem .<br />

Researchers were reluctant to be perceived to be degrading a state-owned<br />

resource <strong>and</strong> trials were frequently terminated within <strong>the</strong> time-frames <strong>of</strong><br />

system run-down. Conclusions for each veldt type vary enormously, but we<br />

would like to elaborate on those delivered for <strong>the</strong> semi -arid grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong><br />

Eastern Cape.<br />

It is well recognized that rainfall is <strong>the</strong> primary determinant <strong>of</strong> forage<br />

production <strong>and</strong> a number <strong>of</strong> production model s have been developed for<br />

predicting <strong>the</strong> aboveground primary production in natural rangel<strong>and</strong> in<br />

sou<strong>the</strong>rn Africa. Coe, Cumming <strong>and</strong> Phillipson (1976) demonstrate a linear<br />

relationship between annual rainfall <strong>and</strong> primary production for conservation<br />

areas in sou<strong>the</strong>rn Africa. These predictions are regarded as conservative<br />

by commercial graziers, many <strong>of</strong> whom suggest that production for livestock<br />

can be optimized by rotational grazing (Danckwerts <strong>and</strong> Teague, 1989). In an<br />

effort to assess <strong>the</strong> sustainable production <strong>of</strong> grassl<strong>and</strong>s in <strong>the</strong> Eastern Cape<br />

Province, a grazing trial was established on a freehold ranch (<strong>the</strong> so-called<br />

Kroomie Trial ) to test <strong>the</strong> impact <strong>of</strong> animal type (cattle or sheep ), number<br />

(light, moderate or heavy stocking rate ) <strong>and</strong> duration (rotation versus continuous<br />

) on rangel<strong>and</strong> condition <strong>and</strong> animal production. Preliminary results<br />

suggest that continuous grazing under moderate stocking rate (that recommended<br />

by <strong>the</strong> National Department <strong>of</strong> Agriculture ) yields <strong>the</strong> best livestock<br />

mass gain. However, in <strong>the</strong> Kroomie trial, no significant changes in species<br />

composition are obvious <strong>and</strong> <strong>the</strong> duration <strong>of</strong> <strong>the</strong> trial (10 years) is insufficient<br />

to make conclusive assertions regarding system run-down. Even in situations<br />

like this, where <strong>the</strong> questions have been clearly defined <strong>and</strong> <strong>the</strong> treatments<br />

meticulously applied, no clear answers to “sustainable” production levels are<br />

available. Using SPUR2 (Wight <strong>and</strong> Skiles, 1987; Hanson et al 1994), Palmer,<br />

Ainslie <strong>and</strong> H<strong>of</strong>fman (1999) simulated a 50-year beef operation under continuous<br />

grazing for a site receiving 500 mm/yr (similar in elevation <strong>and</strong> rainfall to<br />

<strong>the</strong> conditions at Kroomie). The “recommended stocking rate”, determined<br />

by <strong>the</strong> National Department <strong>of</strong> Agriculture <strong>and</strong> L<strong>and</strong> Affairs, was 6 ha/LSU.<br />

When running ano<strong>the</strong>r simulation at 4 ha/LSU, with ambient CO2 at 330 ppm,


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 103<br />

Livestock mass (kg)<br />

Figure 3.8<br />

Simulated carrying capacity for Grahamstown using SPUR2, with stocking rate<br />

set at that recommended by <strong>the</strong> Department <strong>of</strong> Agriculture (4 ha/LSU) under a<br />

continuous grazing system.<br />

Livestock mass (kg)<br />

Month<br />

100 200 300 400 500 600<br />

Month<br />

Figure 3.9<br />

Simulated carrying capacity for Grahamstown using SPUR2, with stocking rate set<br />

at 2 ha/LSU under a continuous grazing system. System shows signs <strong>of</strong> run-down<br />

after 300 months.<br />

<strong>the</strong> system remained sustainable (Figure 3.8). Only when <strong>the</strong> stocking rate was<br />

increased dramatically, doubled to 2 ha/LSU, did <strong>the</strong> system run down within<br />

<strong>the</strong> 50-year simulation period (Figure 3.9). These results suggest that <strong>the</strong> recommended<br />

stocking rates for grassl<strong>and</strong> systems are well below those that are


104<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Figure 3.10<br />

Rangel<strong>and</strong> production in South Africa using <strong>the</strong> model <strong>of</strong> Le Houérou, Bingham<br />

<strong>and</strong> Skerbek (1988) <strong>and</strong> median annual rainfall (Dent, Lynch <strong>and</strong> Schulze, 1987).<br />

likely to lead to system run-down. In <strong>the</strong> communal areas <strong>of</strong> <strong>the</strong> Eastern Cape,<br />

livestock numbers at <strong>the</strong> district level reflect <strong>the</strong> fact that stocking rates are<br />

substantially higher than those applied by freehold graziers <strong>and</strong> recommended<br />

by <strong>the</strong> Department <strong>of</strong> Agriculture. This presents a problem for administrators,<br />

who are unable to reduce livestock numbers in areas where graziers are unresponsive<br />

to regulation.<br />

Production relationships can be simplified to straightforward expressions <strong>of</strong><br />

kilograms <strong>of</strong> annual dry matter production <strong>of</strong> forage per millimetre <strong>of</strong> annual<br />

rainfall (Le Houérou, 1984). An aboveground biomass production model<br />

based on <strong>the</strong> concept <strong>of</strong> rain-use-efficiency has been developed (Palmer, 1998)<br />

<strong>and</strong> applied to rangel<strong>and</strong>. The resultant map for commercial production is<br />

shown as Figure 3.10. Production may be converted to carrying capacity for<br />

cattle by assuming a daily requirement <strong>of</strong> 11.25 kg DM/LSU <strong>and</strong> a use factor<br />

<strong>of</strong> 0.4 (Le Houérou, pers. comm.). The use factor may decline to 0.2 in mesic,<br />

“sour ” grassl<strong>and</strong>s with high C:N ratios.<br />

The second focus <strong>of</strong> research to receive substantial government funding in<br />

support <strong>of</strong> intervention policies was assessment <strong>of</strong> grazing systems . During<br />

1950–1990 it was expedient for government to provide support for fencing ,<br />

water points <strong>and</strong> stock management infrastructure. Field trials were designed to<br />

assess <strong>the</strong> advantages <strong>of</strong> rotational versus continuous grazing . Rotational grazing<br />

requires that <strong>the</strong> pasture allocated to a group or groups <strong>of</strong> animals be subdivided<br />

into one enclosure more than <strong>the</strong> number <strong>of</strong> groups (Booysen, 1967).<br />

According to Tainton, Aucamp <strong>and</strong> Danckwerts (1999), <strong>the</strong> primary objectives<br />

<strong>of</strong> rotational grazing are to:


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 105<br />

• control <strong>the</strong> frequency at which plants are grazed by controlling <strong>the</strong> frequency<br />

with which each camp in <strong>the</strong> system is grazed;<br />

• control <strong>the</strong> intensity at which plants are grazed by controlling <strong>the</strong> number<br />

<strong>of</strong> animals that graze each camp <strong>and</strong> <strong>the</strong>ir period <strong>of</strong> occupation; <strong>and</strong><br />

• reduce <strong>the</strong> extent to which veldt is selectively grazed by confining a relatively<br />

large number <strong>of</strong> animals to a small proportion <strong>of</strong> <strong>the</strong> veldt so as to<br />

<strong>of</strong>fer <strong>the</strong>m little opportunity to select.<br />

The published results <strong>of</strong> many grazing trials (Department <strong>of</strong> Agriculture<br />

[South Africa], 1951) suggest that while animal performance in continuous<br />

grazing systems was superior to that <strong>of</strong> various rotational grazing ones,<br />

continuous grazing was condemned. After <strong>the</strong> contribution <strong>of</strong> Booysen (1969),<br />

who maintained that retaining sufficient active green biomass was essential to<br />

optimize regrowth, fur<strong>the</strong>r research continued into <strong>the</strong> advantages <strong>of</strong> variations<br />

in rotational grazing. The concepts <strong>of</strong> Booysen (1969) are encompassed in <strong>the</strong><br />

term High Performance Grazing (HPG), with <strong>the</strong> alternative, intensive-use,<br />

approach being High Utilization Grazing (HUG) (Tainton, Aucamp <strong>and</strong><br />

Danckwerts, 1999). The HPG approach is thought to perform better in <strong>the</strong><br />

semi -arid grassl<strong>and</strong>s <strong>and</strong> savannahs, whereas HUG is more appropriate in <strong>the</strong><br />

fire -induced grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> humid regions. The inappropriate application<br />

<strong>of</strong> HUG, encompassed by <strong>the</strong> protagonists <strong>of</strong> Holistic Resource Management<br />

(Savory, 1988), to <strong>the</strong> more fragile, semi-arid systems, has been controversial<br />

<strong>and</strong> is discouraged.<br />

The third area receiving research attention funded by <strong>the</strong> Department <strong>of</strong><br />

Agriculture was veldt condition assessment. In this work, floristic composition<br />

was regarded as an indicator <strong>of</strong> <strong>the</strong> impact <strong>of</strong> management <strong>and</strong> stocking rates .<br />

Gradient studies, which explored changes in species composition along grazing<br />

gradients, were popular. Within this research area, it was difficult to attribute<br />

<strong>the</strong> floristic variation along gradients directly to herbivory. Differences in<br />

species composition were <strong>of</strong>ten a consequence <strong>of</strong> enrichment, trampling <strong>and</strong><br />

associated changes in soil structure <strong>and</strong> chemistry.<br />

LEGUME AND FODDER INTRODUCTION<br />

A number <strong>of</strong> subtropical pasture legumes <strong>and</strong> fodders have been screened<br />

at sites with from 100–700 mm annual rainfall . Range reinforcement is<br />

done on a large scale in commercial dairy regions. Favoured grasses include<br />

Pennisetum cl<strong>and</strong>estinum (Kikuyu grass ), Panicum maximum <strong>and</strong> Digitaria<br />

eriantha , while legumes such as silver leaf Desmodium are over-sown into<br />

natural vegetation .<br />

Foggage (Plate 3.5) is important in commercial beef <strong>and</strong> dairy production<br />

systems in South Africa . Graziers use a wide range <strong>of</strong> commercially available<br />

grasses <strong>and</strong> legumes. The performance <strong>of</strong> growing beef steers grazing<br />

foggaged dryl<strong>and</strong> Kikuyu grass pastures <strong>and</strong> given limited access (3 hours<br />

daily) to leucaena (Leucaena leucocephala cv. Cunningham) was better than


106<br />

Plate 3.5<br />

Foggage Kikuyu for winter grazing .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

that <strong>of</strong> steers grazing only Kikuyu foggage during autumn <strong>and</strong> early winter<br />

(Zacharias, Clayton <strong>and</strong> Tainton, 1991). Animals grazing leucaena performed<br />

better <strong>and</strong> gained 24.8 kg per animal more, over 90 days, than those on<br />

Kikuyu alone. There is concern about <strong>the</strong> risk <strong>of</strong> leucaena becoming invasive<br />

in <strong>the</strong> humid coast <strong>and</strong> its use, <strong>and</strong> that <strong>of</strong> o<strong>the</strong>r potentially aggressive species<br />

(e.g. Lespedeza sericea ), has been discouraged until fur<strong>the</strong>r evaluation has<br />

been carried out.<br />

Investigations to determine whe<strong>the</strong>r frosted Kikuyu provides better quality<br />

foggage than natural pasturage in <strong>the</strong> sour -veldt area during <strong>the</strong> winter<br />

months revealed that this grass had a crude protein content <strong>of</strong> 8–10 percent in<br />

winter. The performance <strong>of</strong> animals grazing such frosted Kikuyu was highly<br />

satisfactory (Rethman <strong>and</strong> Gouws, 1973). Sheep performance <strong>and</strong> patterns <strong>of</strong><br />

herbage utilization were determined in two grazing trials involving different<br />

amounts <strong>and</strong> quality <strong>of</strong> Kikuyu foggage. In two grazing trials involving different<br />

quantity <strong>and</strong> quality <strong>of</strong> Kikuyu foggage, we<strong>the</strong>r lambs maintained live<br />

mass in one, whereas dry ewes <strong>and</strong> we<strong>the</strong>r lambs both lost 8–10 percent <strong>of</strong><br />

<strong>the</strong>ir initial mass in <strong>the</strong> o<strong>the</strong>r. This suggests that Kikuyu foggage alone does<br />

not provide a viable source <strong>of</strong> fodder. Grazing capacity was proportional to<br />

<strong>the</strong> yield <strong>of</strong> foggage <strong>and</strong> some 50 percent <strong>of</strong> <strong>the</strong> total herbage was utilized.<br />

The estimates <strong>of</strong> quality indicated that a higher level <strong>of</strong> utilization would<br />

have resulted in poorer sheep performance (Barnes <strong>and</strong> Dempsey, 1993).<br />

S.G. REYNOLDS


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 107<br />

DRYLAND FODDER<br />

Dryl<strong>and</strong> fodder production is only possible in <strong>the</strong> higher-rainfall regions <strong>of</strong> <strong>the</strong><br />

country. The principal form <strong>of</strong> dryl<strong>and</strong> fodder is cereal crop residues , which<br />

make an important contribution to livestock diets in communal areas during<br />

<strong>the</strong> dry season . Some communal area farmers collect <strong>and</strong> store at least part <strong>of</strong><br />

<strong>the</strong>ir residues to feed to selected animals, such as milch cows <strong>and</strong> draught oxen,<br />

but most is utilized in situ.<br />

Cultivation <strong>of</strong> rainfed crops in South Africa is widespread in both freehold<br />

<strong>and</strong> communal l<strong>and</strong> use systems . The most significant commercial grain producing<br />

areas are <strong>the</strong> maize triangle <strong>of</strong> <strong>the</strong> central high-veldt, <strong>the</strong> wheat growing<br />

region <strong>of</strong> <strong>the</strong> southwestern Cape <strong>and</strong> <strong>the</strong> maize growing regions <strong>of</strong> central<br />

Kwa-Zulu Natal. Maize is widely preferred as <strong>the</strong> staple food in <strong>the</strong> communal<br />

areas, but millet <strong>and</strong> sorghum are more reliable crops apart from in <strong>the</strong><br />

highest-rainfall zones . National cereal production (roughly 80 percent maize,<br />

16 percent wheat <strong>and</strong> 4 percent o<strong>the</strong>rs, including millet <strong>and</strong> sorghum) fluctuates<br />

considerably from year to year according to rainfall. Production has varied<br />

from a low <strong>of</strong> 5 044 000 t in <strong>the</strong> drought year <strong>of</strong> 1991/92 to a record high <strong>of</strong><br />

15 966 000 t in 1993/94 (Table 3.8). It is difficult to assess what proportion crop<br />

residues contribute to national production as no research has been published,<br />

but it is thought to be considerable in areas <strong>of</strong> commercial rainfed cultivation<br />

(>600 mm mean annual rainfall).<br />

In drier central <strong>and</strong> western zones , farmers commonly have small areas<br />

<strong>of</strong> drought -tolerant fodders (e.g. Agave americana , Opuntia spp. or Atriplex<br />

nummalaria ) as a drought reserve .<br />

IRRIGATED FODDER<br />

Irrigation has two main functions in <strong>the</strong> humid summer rainfall regions. In<br />

winter it is used for temperate pasture species such as ryegrass <strong>and</strong> in summer<br />

it is used to supplement rainfall. In winter, <strong>the</strong> temperate species are completely<br />

dependant upon irrigation for survival <strong>and</strong> it can only be justified in intensive<br />

production systems such as dairy or <strong>the</strong> production <strong>of</strong> fat lambs.<br />

TABLE 3.8<br />

Commercial field crop production for South Africa from 1992 to 2000 (×1000 t).<br />

Crop 1992 1993 1994 1995 1996 1997 1998 1999 2000<br />

Maize 3 277 9 997 13 275 4 866 10 171 10 136 7 693 7 946 10 584<br />

Wheat 1 324 1 983 1 840 1 977 2 711 2 428 1 787 1 725 2 122<br />

Green corn 266 262 278 279 280 290 292 299 300<br />

Barley 265 230 275 300 176 182 215 90 142<br />

Groundnuts 132 150 174 117 215 157 108 163 169<br />

Sorghum 118 515 520 290 535 433 358 223 352<br />

Soybeans 62 68 67 58 80 120 200 174 148<br />

Oats 45 47 37 38 33 30 25 22 25<br />

Total crops 5 044 12 727 15 966 7 491 13 647 13 229 10 098 10 024 13 244<br />

SOURCE: FAO database.


108<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 3.6<br />

Dairy cows on irrigated ryegrass pastures (Lolium multiflorum ) near Fort<br />

Nottingham, KwaZulu-Natal.<br />

Dryl<strong>and</strong> pasture production may be improved by irrigation. Where<br />

irrigation is available, despite <strong>the</strong> relative advantages <strong>of</strong> using water for o<strong>the</strong>r<br />

more lucrative crops , some farmers may choose to grow irrigated pasture.<br />

Alfalfa (Medicago sativa ) is <strong>the</strong> main purpose-grown irrigated fodder, <strong>and</strong><br />

is grown throughout <strong>the</strong> country. In 1980, 468 000 ha were under irrigated<br />

alfalfa, but this declined to 214 000 ha in 1987. This may show a preference<br />

amongst farmers with water rights to grow cash crops. New legislation<br />

(Water Act <strong>of</strong> 1998), which separates water rights from property rights <strong>and</strong><br />

increases <strong>the</strong> cost <strong>of</strong> abstracting water from rivers, will reinforce this trend.<br />

In high-performance production systems (e.g. dairy – Plate 3.6), Kikuyu<br />

grass (Pennisetum cl<strong>and</strong>estinum), cocksfoot (Dactylis glomerata ), tall fescue<br />

(Festuca arundinacea ) <strong>and</strong> ryegrasses (Lolium multiflorum <strong>and</strong> L. perenne )<br />

are cultivated. Some o<strong>the</strong>r legumes (Trifolium pratense <strong>and</strong> T. repens ) respond<br />

well to irrigation. Many o<strong>the</strong>r species <strong>and</strong> numerous cultivars are available<br />

commercially (Bartholomew, 2000).<br />

EXCEPTIONAL CIRCUMSTANCES FODDER<br />

In times <strong>of</strong> drought , South Africa has provided fodder at subsidized rates<br />

to farmers. According to <strong>the</strong> new drought policy (National Department<br />

<strong>of</strong> Agriculture , 1995), <strong>the</strong> fodder subsidies have been terminated in order<br />

to encourage farmers to build up <strong>the</strong>ir own forage reserves <strong>and</strong> to discourage<br />

<strong>the</strong>m from retaining excessive stock numbers. None<strong>the</strong>less, it is likely<br />

that some commercial farmers, <strong>and</strong> probably <strong>the</strong> government, will continue<br />

S.G. REYNOLDS


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 109<br />

TABLE 3.9<br />

Plants used for fodder during exceptional circumstances .<br />

Botanical name Common name Uses<br />

Agave americana American aloe Drought fodder in arid <strong>and</strong> semi- arid regions<br />

An<strong>the</strong>phora pubescens Wool grass Spring <strong>and</strong> summer grazing<br />

Atriplex mueleri Australian saltbush Drought fodder<br />

Atriplex nummalaria Old Man Saltbush Drought fodder<br />

Atriplex semibaccata Creeping saltbush Drought fodder<br />

Cenchrus ciliaris Blue buffalo grass Tufted perennial; spring, summer <strong>and</strong> autumn grazing<br />

Opuntia spp. Spineless cactus Drought fodder<br />

Opuntia ficus-indica Prickly pear Drought fodder<br />

Vigna unguiculata Cowpea Undersowing maize, millet or sorghum<br />

to import fodder in extreme drought conditions. In <strong>the</strong> arid <strong>and</strong> semi -arid<br />

regions, farmers are encouraged to plant suitable drought-tolerant fodder crops<br />

(Table 3.9). Since 1994, <strong>the</strong>re have been no magisterial districts declared as<br />

drought stricken, <strong>and</strong> so <strong>the</strong>se new policies have not been tested.<br />

CONSTRAINTS TO PASTURE AND FODDER PRODUCTION AND<br />

IMPROVEMENT<br />

Low <strong>and</strong> uncertain rainfall throughout most <strong>of</strong> <strong>the</strong> country are <strong>the</strong> main<br />

constraints to <strong>the</strong> productivity <strong>of</strong> natural pastures <strong>and</strong> to <strong>the</strong> establishment<br />

<strong>of</strong> exotic pasture crops . Concern about exotics becoming problematic limits<br />

<strong>the</strong> introduction <strong>and</strong> testing <strong>of</strong> hardy species considered suited to <strong>the</strong><br />

environmental <strong>and</strong> utilization rigours <strong>of</strong> <strong>the</strong> communal areas (e.g. Leucaena<br />

spp. <strong>and</strong> Lespedeza sericea ). The availability <strong>and</strong> price <strong>of</strong> seeds for fodder or<br />

for pasture improvement are major constraints to communal area farmers.<br />

Considerable portions <strong>of</strong> <strong>the</strong> savannah vegetation on <strong>the</strong> freehold farms are<br />

severely bush infested, but <strong>the</strong> cost <strong>of</strong> thinning or clearing generally outweighs<br />

<strong>the</strong> benefits in terms <strong>of</strong> increased carrying capacity . Open access to grazing ,<br />

at least within communities , in <strong>the</strong> communal areas necessitates broad<br />

collective agreement <strong>and</strong> cooperation in any pasture improvement venture<br />

– something most communities, socially fragmented as <strong>the</strong>y are, seem unable<br />

to attain. Traditionally, communal area farmers do not retain exclusive use <strong>of</strong><br />

<strong>the</strong>ir unfenced cropl<strong>and</strong>s for <strong>the</strong>ir own livestock after harvest, which blocks<br />

opportunities <strong>and</strong> incentives for undersowing or alley cropping.<br />

Commercial ranchers find it increasingly difficult to maintain production in<br />

<strong>the</strong> western <strong>and</strong> central regions, which receive low <strong>and</strong> uncertain rainfall <strong>and</strong><br />

where <strong>the</strong>re are increases in undesirable woody species. Low pr<strong>of</strong>it margins <strong>and</strong><br />

higher production costs discourage many l<strong>and</strong>owners from maintaining commercial<br />

herds. There has been a decline in sheep <strong>and</strong> wool production from <strong>the</strong><br />

Nama-karoo region (Dean <strong>and</strong> MacDonald, 1994), which has been attributed to<br />

a decline in resource condition . There appears to be an increase in <strong>the</strong> number<br />

<strong>of</strong> uninhabited freehold farms in <strong>the</strong> arid <strong>and</strong> semi -arid regions, suggesting that<br />

farms are being ab<strong>and</strong>oned or managed as larger units. Reflecting de-agrariani-


110<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

zation trends throughout <strong>the</strong> developed world, South Africa n rangel<strong>and</strong>s under<br />

freehold tenure are becoming depopulated. The children <strong>of</strong> freehold farmers do<br />

not regard farming as an exciting career option, <strong>and</strong> leave <strong>the</strong> farm for training<br />

in more lucrative career paths. When freehold l<strong>and</strong> is converted from livestock<br />

ranching to game farming, <strong>the</strong> staff complement required to manage <strong>the</strong> farm<br />

is reduced <strong>and</strong> labour is encouraged to move to <strong>the</strong> smaller towns, with better<br />

education, health <strong>and</strong> municipal services.<br />

In contrast to freehold l<strong>and</strong>, <strong>the</strong> population in communal areas has increased<br />

since <strong>the</strong> initiation <strong>of</strong> re-location policies by <strong>the</strong> previous regime. This trend<br />

has continued since <strong>the</strong> advent <strong>of</strong> <strong>the</strong> new democracy, with rural l<strong>and</strong> being<br />

used for <strong>the</strong> construction <strong>of</strong> dwellings, roads, clinics, schools <strong>and</strong> stores. Many<br />

residents have access to a piece <strong>of</strong> cultivated dryl<strong>and</strong> , ei<strong>the</strong>r close to <strong>the</strong>ir<br />

dwelling or at an allocation some distance away, but within <strong>the</strong> administrative<br />

region <strong>of</strong> <strong>the</strong> village. This allocation is generally used for maize, millet or cash<br />

crops , <strong>and</strong> is seldom planted to pasture crops. Crop residues may be available<br />

to livestock at <strong>the</strong> end <strong>of</strong> <strong>the</strong> harvest. Access to irrigation is limited to a very<br />

few villagers, who are usually part <strong>of</strong> government schemes.<br />

EVOLUTION OF GRASSLANDS OVER THE LAST 40 YEARS<br />

There is clear evidence <strong>of</strong> changes in <strong>the</strong> structure <strong>and</strong> specific composition<br />

<strong>of</strong> grassl<strong>and</strong>s in sou<strong>the</strong>rn Africa in <strong>the</strong> recent past. In a comprehensive review<br />

<strong>of</strong> <strong>the</strong> impact <strong>of</strong> recent human occupation <strong>of</strong> <strong>the</strong> eastern seaboard, H<strong>of</strong>fman<br />

(1997) reports that “crop farmers first entered sou<strong>the</strong>rn Africa along <strong>the</strong><br />

nor<strong>the</strong>astern coastal margins”, where <strong>the</strong>y practised slash-<strong>and</strong>-burn agriculture<br />

<strong>and</strong> small-stock farming. At first, only <strong>the</strong> vegetation around <strong>the</strong> coastal forest<br />

margins was cleared. These early farmers moved westwards, clearing cropl<strong>and</strong><br />

in woodl<strong>and</strong> <strong>and</strong> forest, creating a mosaic <strong>of</strong> open grassl<strong>and</strong> <strong>and</strong> thicket patches.<br />

The expansion <strong>of</strong> grassl<strong>and</strong> brought about a shift in herd composition <strong>and</strong> <strong>the</strong>re<br />

was an increase in cattle -based economy. In <strong>the</strong> communal rangel<strong>and</strong>s <strong>of</strong> Kwa-<br />

Zulu Natal, Transkei <strong>and</strong> Ciskei, grassl<strong>and</strong>s are maintained by <strong>the</strong> continued<br />

removal <strong>of</strong> shrubs <strong>and</strong> trees for firewood, annual burning (Plate 3.7) <strong>and</strong> <strong>the</strong><br />

use <strong>of</strong> goats to control woody encroachment . However, <strong>the</strong> encroachment<br />

<strong>of</strong> woody plants into grassl<strong>and</strong> remains a constant threat elsewhere. During<br />

a project to re-photograph, from <strong>the</strong> same viewpoint, historical photographs<br />

taken in natural rangel<strong>and</strong>, M.T. H<strong>of</strong>fman <strong>of</strong> <strong>the</strong> University <strong>of</strong> Cape Town<br />

(pers. comm.) has shown that woody encroachment is a feature <strong>of</strong> almost every<br />

photograph that has been re-taken. Published examples <strong>of</strong> this are available<br />

in H<strong>of</strong>fman (1997) <strong>and</strong> H<strong>of</strong>fman <strong>and</strong> O’Connor (1999). Urbanization <strong>and</strong><br />

cultivation has played an important role in transforming grassl<strong>and</strong>s. Rural<br />

villages <strong>and</strong> ab<strong>and</strong>oned cultivated l<strong>and</strong> have replaced natural grassl<strong>and</strong> in<br />

<strong>the</strong> former homel<strong>and</strong>s <strong>of</strong> Transkei, Ciskei, Qwa-Qwa, Venda, Lebowa,<br />

Bophutatswana <strong>and</strong> Kwa-Zulu. In rural villages, free-ranging livestock use<br />

<strong>the</strong> entire l<strong>and</strong>scape without restriction, concentrating nutrients around <strong>the</strong>


S.G. REYNOLDS<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 111<br />

Plate 3.7<br />

Grass regrowth after <strong>the</strong> annual burn in Kwa-Zulu Natal.<br />

homesteads <strong>and</strong> kraal where <strong>the</strong>y are held overnight. The areas near homesteads<br />

have a lower st<strong>and</strong>ing biomass, but are extremely photosyn<strong>the</strong>tically active<br />

<strong>and</strong> provide short, nutritious grazing during <strong>the</strong> growing season. However<br />

photosyn<strong>the</strong>tic activity in o<strong>the</strong>r components <strong>of</strong> <strong>the</strong> l<strong>and</strong>scape <strong>and</strong> in ab<strong>and</strong>oned<br />

cultivated l<strong>and</strong> is low, suggesting suboptimal production <strong>of</strong> natural rangel<strong>and</strong><br />

(Palmer et al., 2001).<br />

RESEARCH<br />

Range <strong>and</strong> botanical sciences in South Africa have a very active research<br />

community, with funding <strong>and</strong> leadership in a number <strong>of</strong> ministries. The<br />

primary research agency for rangel<strong>and</strong> is <strong>the</strong> Agricultural Research Council<br />

(ARC), which supports two institutes dealing with underst<strong>and</strong>ing <strong>the</strong> processes<br />

(Range <strong>and</strong> Forage Institute – ARC-RFI) <strong>and</strong> condition assessment (Institute<br />

for Soil Climate <strong>and</strong> Water – ARC-ISCW) <strong>of</strong> rangel<strong>and</strong>. These institutes<br />

receive most <strong>of</strong> <strong>the</strong>ir core funding (approximately R 45 million in 2001)<br />

from <strong>the</strong> Ministry <strong>of</strong> Arts, Culture, Science <strong>and</strong> Technology. They also<br />

receive direct, project-orientated funding from <strong>the</strong> National Department <strong>of</strong><br />

Agriculture <strong>and</strong> L<strong>and</strong> Affairs. Research direction is driven largely by <strong>the</strong><br />

needs <strong>of</strong> directorates within <strong>the</strong> Department, which at present has five primary<br />

programmes: (1) Monitoring; (2) Problem organisms; (3) Rangel<strong>and</strong> resources ;<br />

(4) Geographical Information Systems (GIS ); <strong>and</strong> (5) Decision Support Systems<br />

(DSS). In <strong>the</strong> monitoring programme, research efforts <strong>of</strong> ARC-RFI <strong>and</strong><br />

ARC-ISCW are directed towards resource evaluation using remote sensing<br />

<strong>and</strong> GIS modelling techniques. There is a strong emphasis on using satellite


112<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

imagery to explore <strong>the</strong> extent <strong>of</strong> <strong>and</strong> trends in soil erosion, bush encroachment<br />

<strong>and</strong> rangel<strong>and</strong> degradation . The directorate has supported <strong>the</strong> calibration <strong>of</strong><br />

NOAA AVHRR data for use in assessing trends since <strong>the</strong> launch <strong>of</strong> <strong>the</strong>se<br />

satellites in 1980, <strong>and</strong> is now funding research into using high resolution infrared<br />

instruments (digital cameras <strong>and</strong> o<strong>the</strong>r high resolution sensors) to assess<br />

range <strong>and</strong> l<strong>and</strong>scape degradation at <strong>the</strong> farm <strong>and</strong> village scale. The problem<br />

organism division continues to show interest in brown locusts, quelea control ,<br />

woody weed encroachment (especially alien taxa such as Prosopis spp. ) <strong>and</strong><br />

alien weed control. The list <strong>of</strong> alien weeds is extensive , with some 197 taxa<br />

being listed as declared weeds <strong>and</strong> invader plants (Henderson, 2001) <strong>and</strong> a<br />

fur<strong>the</strong>r 60 taxa being considered as proposed weeds (Henderson, 2001) <strong>and</strong> a<br />

threat to range <strong>and</strong> water resources. The rangel<strong>and</strong> resources division funds<br />

projects that assess <strong>the</strong> impact <strong>of</strong> different grazing management approaches<br />

(e.g. continuous versus rotational grazing ) on rangel<strong>and</strong>. This is being carried<br />

out in a network <strong>of</strong> replicated grazing trials throughout <strong>the</strong> country.<br />

The Grassl<strong>and</strong> Society <strong>of</strong> Sou<strong>the</strong>rn Africa (GSSA) is <strong>the</strong> pr<strong>of</strong>essional organization<br />

representing <strong>the</strong> discipline. GSSA maintains a full-time secretariat for<br />

its members, organizes annual congresses at localities around <strong>the</strong> subcontinent<br />

<strong>and</strong> publishes a peer-reviewed journal (African Journal <strong>of</strong> Range <strong>and</strong> Forage<br />

Science). The journal has been published since 1966, <strong>and</strong> about a thous<strong>and</strong> peerreviewed<br />

articles have appeared.<br />

Botanical research relating to rangel<strong>and</strong> is conducted by <strong>the</strong> National<br />

Botanical Institute (NBI) <strong>of</strong> <strong>the</strong> Ministry <strong>of</strong> Environmental Affairs <strong>and</strong><br />

Tourism . NBI has focused on exploring <strong>the</strong> natural patterns <strong>and</strong> processes<br />

driving vegetation status in <strong>the</strong> arid <strong>and</strong> semi -arid regions <strong>of</strong> <strong>the</strong> Nama-karoo<br />

<strong>and</strong> succulent karoo biomes .<br />

MANAGEMENT OF GRASSLANDS<br />

In response to a decline in pr<strong>of</strong>it margins <strong>and</strong> negative sentiments associated<br />

with domestic livestock production, <strong>the</strong>re has been a marked increase in game<br />

farming <strong>and</strong> ecotourism on commercial ranching areas. This is manifested in<br />

<strong>the</strong> large numbers <strong>of</strong> game-pro<strong>of</strong> fences erected on farm boundaries <strong>and</strong> <strong>the</strong><br />

removal <strong>of</strong> internal fences <strong>and</strong> stock watering points . This change has an impact<br />

on <strong>the</strong> management <strong>of</strong> rangel<strong>and</strong>, as livestock can no longer be manipulated<br />

<strong>and</strong> it is more difficult to apply rotational grazing . In commercial farming<br />

operations, fire is used on many high-elevation rangel<strong>and</strong>s to provide grazing<br />

during <strong>the</strong> early growing season. Fire is used primarily by commercial ranchers<br />

to remove low quality material remaining after winter <strong>and</strong> to encourage a flush<br />

<strong>of</strong> short green grass in spring (see Plate 3.7).<br />

Development <strong>of</strong> techniques for <strong>the</strong> rehabilitation <strong>of</strong> grassl<strong>and</strong>s<br />

The processes <strong>of</strong> degradation in arid <strong>and</strong> semi -arid rangel<strong>and</strong>s are poorly<br />

understood <strong>and</strong> only recently have some researchers provided a conceptual


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 113<br />

framework for exploring rehabilitation within <strong>the</strong> context <strong>of</strong> an underst<strong>and</strong>ing<br />

<strong>of</strong> l<strong>and</strong>scape function. Ludwig et al. (1997) suggest that <strong>the</strong> l<strong>and</strong>scape comprises<br />

a series <strong>of</strong> inter-connected patches, with resource control being a key feature<br />

in <strong>the</strong> maintenance <strong>of</strong> <strong>the</strong> integrity <strong>of</strong> <strong>the</strong> l<strong>and</strong>scape. Nutrients <strong>and</strong> moisture<br />

move from one patch to ano<strong>the</strong>r, mainly though water flow patterns. The<br />

obstructions or patches in <strong>the</strong> l<strong>and</strong>scape prevent nutrients from being lost, with<br />

run-on areas acting as sites <strong>of</strong> nutrient <strong>and</strong> moisture accumulation. Run-on<br />

areas are connected to one ano<strong>the</strong>r by run<strong>of</strong>f zones or fetches. In a degrading<br />

l<strong>and</strong>scape, it is suggested that <strong>the</strong>se run<strong>of</strong>f areas increase in size <strong>and</strong> <strong>the</strong> run-on<br />

areas can no longer capture <strong>and</strong> accumulate nutrients, <strong>and</strong> so nutrients are lost<br />

to rivers <strong>and</strong> transported away from <strong>the</strong> l<strong>and</strong>scape. In order to quantify <strong>the</strong>se<br />

processes <strong>and</strong> relate <strong>the</strong>m to South Africa n l<strong>and</strong>scapes, l<strong>and</strong>scape function<br />

analysis (LFA) (Ludwig et al., 1997) was applied to two contrasting l<strong>and</strong> use<br />

types (Palmer et al., 2001). The results showed that l<strong>and</strong>scape with a long<br />

history <strong>of</strong> communal management has surface accumulations <strong>of</strong> C <strong>and</strong> N,<br />

which may not have been processed efficiently. Although Palmer et al. (2001)<br />

did not investigate nutrient loss, <strong>the</strong>re were significant differences between l<strong>and</strong>scape-scale<br />

organizations, with communal l<strong>and</strong>scape having a lower l<strong>and</strong>scape<br />

functionality index than <strong>the</strong> freehold grassl<strong>and</strong> . There was greater patchiness<br />

in <strong>the</strong> communal l<strong>and</strong>scape, with longer fetches than <strong>the</strong> l<strong>and</strong>scape with a long<br />

history <strong>of</strong> commercial management. In accordance with Ludwig et al. (1997),<br />

it is recommended that rehabilitation <strong>of</strong> degraded rangel<strong>and</strong>s in South Africa<br />

should strive to reduce <strong>the</strong> extent <strong>of</strong> run<strong>of</strong>f zones <strong>and</strong> increase <strong>the</strong> resource<br />

control exercised by patches.<br />

Spatially explicit diversity indices (moving st<strong>and</strong>ard deviation index) have<br />

been applied to near-infrared (NIR) imagery (L<strong>and</strong>sat TM <strong>and</strong> SPOT) (Tanser<br />

<strong>and</strong> Palmer, 1999) recorded over l<strong>and</strong> with different management histories <strong>and</strong><br />

condition classes. Degraded grassl<strong>and</strong>s, located in areas with a long history <strong>of</strong><br />

communal management, had higher spatial diversity <strong>of</strong> selected growth indices<br />

than healthy grassl<strong>and</strong> . <strong>Grassl<strong>and</strong>s</strong>, savannahs <strong>and</strong> thicket with a high st<strong>and</strong>ing<br />

biomass <strong>and</strong> a long history <strong>of</strong> conservative l<strong>and</strong> management, showed low<br />

spatial diversity indices. Rehabilitation techniques should attempt to reduce<br />

l<strong>and</strong>scape photosyn<strong>the</strong>tic heterogeneity.<br />

Over-seeding with commercially available seeds has long been regarded as a<br />

solution to rehabilitation <strong>of</strong> degraded rangel<strong>and</strong>. In <strong>the</strong> thicket biome , re-vegetation<br />

<strong>of</strong> former cultivated l<strong>and</strong>s has been successful when lime-coated seed<br />

(a mixture <strong>of</strong> seven local species, including Panicum maximum , Cenchrus ciliaris<br />

<strong>and</strong> Eragrostis curvula ) was broadcast over <strong>the</strong> cultivated l<strong>and</strong> <strong>and</strong> a long<br />

(three-year) rest applied. However, <strong>the</strong>re has been limited success reported<br />

elsewhere, where commercial seeds generally require irrigation after planting<br />

<strong>and</strong> any early effect is usually discounted within a few years.<br />

Using <strong>the</strong> principles embodied in <strong>the</strong> LFA <strong>the</strong>ory, Van Rooyen (2000) has<br />

shown that it is possible to rehabilitate degraded biospheres in <strong>the</strong> sou<strong>the</strong>rn


114<br />

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Kalahari using brush packing with Rhigozum trichotomum. In this highly<br />

mobile s<strong>and</strong>-dune environment, brush packing results in s<strong>and</strong> stabilization <strong>and</strong><br />

enables seedling establishment.<br />

Sustainable management <strong>of</strong> <strong>the</strong> environment <strong>and</strong> maintenance <strong>of</strong><br />

biodiversity<br />

South Africa has ratified <strong>the</strong> United Nations Conventions that strive to<br />

maintain bio diversity <strong>and</strong> improve sustainable management <strong>of</strong> rangel<strong>and</strong>s,<br />

specifically <strong>the</strong> Convention on Biological Diversity (CBD) <strong>and</strong> <strong>the</strong> United<br />

Nations Convention to Combat Desertification (UNCCD). These conventions<br />

are administered by <strong>the</strong> Ministry <strong>of</strong> Environmental Affairs <strong>and</strong> Tourism , which<br />

supports <strong>the</strong> assessment <strong>of</strong> <strong>the</strong> state <strong>of</strong> resources . The most recent product <strong>of</strong><br />

this programme has been an assessment <strong>of</strong> degradation <strong>and</strong> desertification at<br />

a national scale (H<strong>of</strong>fman <strong>and</strong> Ashwell, 2001), which defines <strong>the</strong> nature <strong>and</strong><br />

extent <strong>of</strong> rangel<strong>and</strong> transformation.<br />

Seed production<br />

There is formal certification <strong>of</strong> pasture <strong>and</strong> fodder seed in South Africa . South<br />

African seed merchants produce approximately 200 t <strong>of</strong> seed per annum for<br />

sale locally <strong>and</strong> for export. With <strong>the</strong> long-term goal <strong>of</strong> preserving germplasm<br />

(in most cases, as seed) <strong>of</strong> <strong>the</strong> entire South African flora, <strong>the</strong> ARC-Plant<br />

Genetic Resources Division in Pretoria focuses at present on preservation <strong>of</strong><br />

seeds <strong>of</strong> plant species <strong>of</strong> economic importance. A wide variety <strong>of</strong> South African<br />

pasture grasses are included in <strong>the</strong> current accessions, such as species <strong>of</strong> <strong>the</strong><br />

genera An<strong>the</strong>phora, Brachiaria , Cenchrus , Cynodon , Panicum , Pennisetum ,<br />

Setaria <strong>and</strong> Stipagrostis .<br />

RECOMMENDATIONS AND LESSONS LEARNED CONCERNING<br />

SUSTAINABLE GRASSLAND MANAGEMENT<br />

Many <strong>of</strong> <strong>the</strong> wild herbivores in South Africa (e.g. blesbok, bontebok, black<br />

wildebeest, blue wildebeest, springbok, Burchell’s zebra <strong>and</strong> red hartebeest)<br />

create enriched patches which provide highly nutritious fodder throughout<br />

<strong>the</strong> year (Palmer, Novellie <strong>and</strong> Lloyd, 1999). These patches form a relatively<br />

small portion <strong>of</strong> <strong>the</strong> l<strong>and</strong>scape (Lutge, Hardy <strong>and</strong> Hatch, 1996) <strong>and</strong><br />

researchers (Booysen, 1969) recognized that <strong>the</strong> remainder <strong>of</strong> <strong>the</strong> rangel<strong>and</strong><br />

was not used. It was suggested that in order to prevent this “area-selective<br />

grazing ” in livestock production systems , ranchers should fence numerous<br />

paddocks <strong>and</strong> rotate <strong>the</strong> domestic animals in a system that maximized <strong>the</strong><br />

use <strong>of</strong> <strong>the</strong> aboveground primary production. This principle was built into <strong>the</strong><br />

legislation to permit government intervention in <strong>the</strong> primarily white -owned<br />

ranches . This intervention, which provided subsidies to farmers for fencing,<br />

dam construction <strong>and</strong> <strong>the</strong> erection <strong>of</strong> water points , encouraged ranchers to<br />

develop <strong>the</strong>ir farms . In <strong>the</strong> process, <strong>the</strong> government provided <strong>the</strong> rancher


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> South Africa 115<br />

with <strong>the</strong> tools to efficiently remove large quantities <strong>of</strong> aboveground st<strong>and</strong>ing<br />

biomass. This approach may have been useful in <strong>the</strong> grassl<strong>and</strong>s where research<br />

had been carried out to show that grass species composition could be changed<br />

by applying rotational grazing . However, this has had some very serious<br />

consequences in <strong>the</strong> thicket biome , where succulent shrubs such as Portulacaria<br />

afra have been completely removed from <strong>the</strong> l<strong>and</strong>scape <strong>and</strong> do not regenerate<br />

after severe defoliation (Stuart-Hill <strong>and</strong> Aucamp, 1993). In <strong>the</strong> savannah biome,<br />

<strong>the</strong>re is clear evidence <strong>of</strong> continuing woody encroachment by a wide range <strong>of</strong><br />

shrub species, including Acacia karroo, A. mellifera , Dichrostachys cinerea ,<br />

Rhus undulata <strong>and</strong> Rhigozum trichotomum. Researchers suggest that this is<br />

largely due to <strong>the</strong> removal <strong>of</strong> competitive grass species by herbivory, although<br />

alternative hypo<strong>the</strong>ses are suggested.<br />

Maintenance <strong>of</strong> production <strong>and</strong> productivity<br />

Following on <strong>the</strong> thinking <strong>of</strong> J.C. Smuts, who spear-headed rangel<strong>and</strong><br />

conservation initiatives in South Africa , Davies (1968) suggested that a holistic<br />

approach is needed whereby plant, soil <strong>and</strong> animal influences are studied<br />

as controllable parts <strong>of</strong> <strong>the</strong> environment. Savory (1988) fur<strong>the</strong>r embellished<br />

on this approach, coining <strong>the</strong> term Holistic Resource Management , which<br />

embodied principles that were contrary to <strong>the</strong> conventional thinking amongst<br />

range scientists (Clayton <strong>and</strong> Hurt, 1998). Savory (1988) encouraged ranchers<br />

to employ non-selective grazing by maintaining large, mixed species – herds<br />

that would intensively use a restricted area until <strong>the</strong> st<strong>and</strong>ing biomass had<br />

been severely reduced, <strong>the</strong>reby eliminating competition among species. This<br />

area would <strong>the</strong>n receive a long rest, whereupon herbivores would return.<br />

Numerous commercial graziers in South Africa have been encouraged to<br />

follow this thinking, with no formal scientific debate being entertained on <strong>the</strong><br />

success <strong>of</strong> <strong>the</strong> approach. Vorster (1999) provides a convincing argument for<br />

discouraging ranchers from pursuing this approach without careful assessment<br />

<strong>of</strong> <strong>the</strong> rangel<strong>and</strong> resource.<br />

Strategies for maintaining <strong>and</strong> optimizing aboveground grass production<br />

include rotational grazing <strong>and</strong> resting; control <strong>of</strong> woody encroachment ; provision<br />

<strong>of</strong> winter pastures in <strong>the</strong> cool, mesic regions where forage quality declines<br />

in winter; <strong>and</strong> supplementary feeding on cultivated l<strong>and</strong>s. In beef production<br />

systems , livestock are finished in feedlots where maize provides <strong>the</strong> major feed<br />

element. In <strong>the</strong>se systems , production costs are determined by <strong>the</strong> international<br />

maize price.<br />

Priorities for <strong>the</strong> development <strong>of</strong> programmes <strong>and</strong> research<br />

The National Department <strong>of</strong> Agriculture , in cooperation with ARC-RFI,<br />

ARC-ISCW <strong>and</strong> CSIRO-Environmentek, is <strong>the</strong> key institution dealing with<br />

forage resources . The Directorate <strong>of</strong> L<strong>and</strong> <strong>and</strong> Resource Management in <strong>the</strong><br />

National Department <strong>of</strong> Agriculture <strong>and</strong> L<strong>and</strong> Affairs is responsible for <strong>the</strong>


116<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

implementation <strong>of</strong> <strong>the</strong> Conservation <strong>of</strong> Agricultural Resources, Act No. 43<br />

<strong>of</strong> 1984. This act empowers <strong>the</strong> Directorate to intervene when <strong>the</strong> agricultural<br />

resources <strong>of</strong> <strong>the</strong> country are threatened by soil erosion, alien infestation<br />

or woody encroachment . Prior to 1994, this act was used to subsidize <strong>the</strong><br />

provision <strong>of</strong> fencing ; <strong>the</strong> erection <strong>of</strong> new water provision points ; <strong>the</strong> purchase<br />

<strong>and</strong> transport <strong>of</strong> supplementary fodder during exceptional circumstances ;<br />

<strong>the</strong> construction <strong>of</strong> soil erosion works; <strong>the</strong> clearing <strong>of</strong> all weeds (alien <strong>and</strong><br />

indigenous); <strong>and</strong> to support rangel<strong>and</strong> research. Since 1994, intervention from<br />

<strong>the</strong> Directorate has concentrated on supporting research in <strong>the</strong> focus areas<br />

mentioned above <strong>and</strong> to intervene at community level though <strong>the</strong> L<strong>and</strong>care<br />

programme. In addition, each <strong>of</strong> <strong>the</strong> nine Provinces has a section that deals with<br />

rangel<strong>and</strong> <strong>and</strong> pasture research. These sections conduct research appropriate<br />

to <strong>the</strong> needs <strong>of</strong> that Province. South Africa ’s National Agricultural Policy<br />

states that <strong>the</strong> main objective is improvement <strong>of</strong> research in natural resource<br />

management (National Department <strong>of</strong> Agriculture, 1995). On a project<br />

basis, pasture science-related programmes deal with <strong>the</strong> characterization <strong>of</strong><br />

rangel<strong>and</strong>, production modelling , rangel<strong>and</strong> reclamation, agr<strong>of</strong>orestry <strong>and</strong><br />

rangel<strong>and</strong> management systems . Examples <strong>of</strong> individual projects related to<br />

rangel<strong>and</strong> <strong>and</strong> pasture science can be found on <strong>the</strong> ARC Web site.<br />

The National Department <strong>of</strong> Education maintains eleven agricultural colleges,<br />

<strong>and</strong> carries out topic-oriented, formal training courses. All courses are<br />

certified by one <strong>of</strong> <strong>the</strong> tertiary training institutions.<br />

REFERENCES<br />

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Pretoria, South Africa . Report No. 109/1/89<br />

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Africa . Progress Report. Division <strong>of</strong> Agricultural Education & Extension ,<br />

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Du Toit, P.F. 1967. Bush encroachment with specific reference to Acacia karroo<br />

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Ellery, W.N., Scholes, R.J. & Scholes, M.C. 1995. The distribution <strong>of</strong> sweetveld<br />

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factors. African Journal <strong>of</strong> Range <strong>and</strong> Forage Science, 12: 38–45.<br />

Ellis, J.E. & Swift, D.M. 1988. Stability <strong>of</strong> African pastoral ecosystems :<br />

alternate paradigms <strong>and</strong> implications for development . Journal <strong>of</strong> Range<br />

Management, 41: 450–459.<br />

FAO. 1973. Soil map <strong>of</strong> <strong>the</strong> world. Paris, France: UNESCO.<br />

FAO. 2001. Data downloaded from FAOSTAT, <strong>the</strong> FAO online statistical<br />

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Grossman, D., Holden, P.L. & Collinson, R.F.H. 1999. Veld management on<br />

<strong>the</strong> game ranch . In: N.M. Tainton (ed). Veld Management in South Africa .<br />

Pietermaritzburg, South Africa: University <strong>of</strong> Natal Press.<br />

Hanson, J.D., Baker, B.B. & Bourdon, R.M. 1994. SPUR2. Documentation <strong>and</strong><br />

user guide. GPSR [Great Plains System Research] Technical Report, No. 1.<br />

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Henderson, L. 2001. Alien weeds <strong>and</strong> invasive plants. Plant Protection Research<br />

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South Africa .<br />

H<strong>of</strong>fman, M.T. 1997. Human impacts on vegetation . pp. 507–534, in: Cowling,<br />

Richardson & Pierce, 1997. q.v.<br />

H<strong>of</strong>fman, M.T. & O’Connor, T.G. 1999. Vegetation change over 40 years in<br />

<strong>the</strong> Weene/Muden area, KwaZulu-Natal: evidence from photo-panoramas.<br />

African Journal <strong>of</strong> Range & Forage Science, 16: 71–88.<br />

H<strong>of</strong>fman, M.T. & Ashwell, A. 2001. Nature divided. L<strong>and</strong> degradation in South<br />

Africa . Cape Town, South Africa: University <strong>of</strong> Cape Town Press.<br />

Le Houérou, H.N. 1984. Rain use efficiency: a unifying concept in l<strong>and</strong> use ecology.<br />

Journal <strong>of</strong> Arid Environments, 7: 213–247.<br />

Le Houérou, H.N., Bingham, R.L. & Skerbek, W. 1988. Relationship between<br />

<strong>the</strong> variability <strong>of</strong> primary production <strong>and</strong> variability <strong>of</strong> annual precipitation in<br />

world arid l<strong>and</strong>s. Journal <strong>of</strong> Arid Environments, 15: 1–18.<br />

Low, A.B. & Rebelo, A.G. 1996. Vegetation <strong>of</strong> South Africa , Lesotho <strong>and</strong><br />

Swazil<strong>and</strong>. Pretoria, South Africa: Department <strong>of</strong> Environmental Affairs <strong>and</strong><br />

Tourism .<br />

Ludwig, J., Tongway, D., Freudenberger, D., Noble, J. & Hodgkinson, K. 1997.<br />

L<strong>and</strong>scape Ecology. Function <strong>and</strong> Management. Principles from Australia ’s<br />

Rangel<strong>and</strong>s. CSIRO, Canberra, Australia. 158 p.<br />

Lutge, B.U., Hardy, M.B. & Hatch, G.P. 1996. Plant <strong>and</strong> sward response to<br />

patch grazing in <strong>the</strong> Highl<strong>and</strong> Sourveld. African Journal <strong>of</strong> Range <strong>and</strong> Forage<br />

Science, 13: 94–99.<br />

Maclean, G.L. 1993. Roberts’ Birds <strong>of</strong> sou<strong>the</strong>rn Africa. 6th ed. Cape Town, South<br />

Africa : John Voelcker Bird Book Fund.<br />

National Botanical Institute. 2004. Vegetation Map <strong>of</strong> South Africa , Lesotho <strong>and</strong><br />

Swazil<strong>and</strong>. Beta Version 4.0. National Botanical Institute, Cape Town, South<br />

Africa.<br />

National Department <strong>of</strong> Agriculture . 1995. White Paper on Agriculture.<br />

Government Printer, Pretoria, South Africa .<br />

National Department <strong>of</strong> Agriculture <strong>and</strong> L<strong>and</strong> Affairs. 1999. Annual Report.<br />

National Department <strong>of</strong> Agriculture <strong>and</strong> L<strong>and</strong> Affairs. 2001. Annual Report.<br />

O’Connor, T.G. & Bredenkamp, G.J. 1997. Grassl<strong>and</strong> . In: Cowling, Richardson<br />

& Pierce, 1997, q.v.<br />

Palmer, A.R. 1998. Grazing Capacity Information System (GCIS). Instruction<br />

Manual. ARC-Range & Forage Institute, Grahamstown, South Africa .


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Palmer, A.R., Ainslie, A.M. & H<strong>of</strong>fman, M.T. 1999. Sustainability <strong>of</strong> commercial <strong>and</strong><br />

communal rangel<strong>and</strong> systems in sou<strong>the</strong>rn Africa. pp. 1020–1022, in: Proceedings <strong>of</strong><br />

<strong>the</strong> 6th International Rangel<strong>and</strong> Congress. 17–23 July 1999, Townsville, Australia .<br />

Palmer, A.R., Novellie, P.A. & Lloyd, J.W. 1999. Community patterns <strong>and</strong> dynamics<br />

. pp. 208–223, in: Dean & Milton, 1999. q.v.<br />

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in rangel<strong>and</strong>s <strong>of</strong> <strong>the</strong> Peddie District, Eastern Cape, using L<strong>and</strong>scape Function<br />

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Africa, 8: 101–105.<br />

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<strong>the</strong> Burkea africana-Ochna pulchra savanna. Bothalia, 14: 131–138.<br />

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categorization. Memoirs <strong>of</strong> <strong>the</strong> Botanical Survey <strong>of</strong> South Africa , 54: 1–98.<br />

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coastal grassl<strong>and</strong> communities in Transkei. Journal <strong>of</strong> <strong>the</strong> Grassl<strong>and</strong> Society <strong>of</strong><br />

Sou<strong>the</strong>rn Africa, 8: 22–28.<br />

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Journal <strong>of</strong> <strong>the</strong> Grassl<strong>and</strong> Society <strong>of</strong> Sou<strong>the</strong>rn Africa, 8: 59–62.


A.F. CIBILS<br />

Chapter 4<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia<br />

Andrés F. Cibils <strong>and</strong> Pablo R. Borrelli<br />

SUMMARY<br />

Patagonia lies between 39° <strong>and</strong> 55°S, partly in Chile but mainly in Argentina ;<br />

its extra-Andean portion is treeless semi -arid grass <strong>and</strong> shrub steppes that have<br />

been grazed by domestic livestock for a little over a century. The climate is arid<br />

to semi-arid, <strong>and</strong> cool to cold , with mean temperatures decreasing from 15.9°C in<br />

<strong>the</strong> north to 5.4°C in <strong>the</strong> south. Extra-Andean Patagonia is an area <strong>of</strong> semi-arid<br />

grass <strong>and</strong> shrub steppes; vegetation is characterized by xerophytes. Guanacos are<br />

<strong>the</strong> only large native ungulate herbivore <strong>and</strong> <strong>the</strong> region has evolved under light<br />

grazing pressure . Most vegetation has been seriously modified by sheep , particularly<br />

in <strong>the</strong> past 40–50 years, with palatable grasses being replaced by unpalatable<br />

woody plants. Private property is <strong>the</strong> main l<strong>and</strong> tenure form. Human habitation<br />

probably began about 10 000 years BP, but European settlement began at <strong>the</strong> end<br />

<strong>of</strong> <strong>the</strong> nineteenth century, with commercial sheep farming. Aboriginal peoples<br />

were hunter-ga<strong>the</strong>rers; private property limited <strong>the</strong>ir opportunity for migratory<br />

hunting. The success <strong>of</strong> early settlers encouraged more immigrants, who occupied<br />

progressively drier areas, until 1940. Sheep numbers peaked in 1952, at over<br />

21 million head, <strong>and</strong> have since fallen to 8.5 million head. Cattle , kept at higher<br />

elevations near <strong>the</strong> Andes, are <strong>the</strong> next largest stock; herds have increased over <strong>the</strong><br />

past 50 years. Horses <strong>and</strong> goats have decreased less dramatically than sheep. Sheep<br />

121


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<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

farming is almost a monoculture in <strong>the</strong> steppes. There are three kinds <strong>of</strong> farm :<br />

Large Commercial, with flocks <strong>of</strong> more than 6 000; Small <strong>and</strong> Medium farms in<br />

<strong>the</strong> drier areas, with 1 000 to 6 000 head; <strong>and</strong> Subsistence, with fewer than 1 000<br />

sheep. Paddocks are grazed continuously, except for <strong>the</strong> high elevation (summer<br />

) ranges. Vast areas, with few paddocks, restrict <strong>the</strong> potential for controlling<br />

grazing. Guidelines for pasture management began in <strong>the</strong> 1980s, but much work<br />

has been done since on soil-plant-animal relations. Since areas are vast, Decision<br />

Support Systems (DSS) are a new frontier for range management. Development<br />

<strong>of</strong> agrotourism on sheep farms is incipient, mostly in <strong>the</strong> Andes.<br />

INTRODUCTION<br />

The vast area <strong>of</strong> sou<strong>the</strong>rn Argentina <strong>and</strong> Chile between latitudes 39° <strong>and</strong> 55°S<br />

is referred to as Patagonia (Figure 4.1). Almost all <strong>of</strong> Patagonia’s grazing l<strong>and</strong>s<br />

are on <strong>the</strong> cool semi -arid steppes <strong>of</strong> <strong>the</strong> extra-Andean territory <strong>of</strong> sou<strong>the</strong>rn<br />

Argentina (approximately 750 000 km 2 ), extending into Chile around <strong>the</strong><br />

Straits <strong>of</strong> Magellan (Paruelo, Jobbágy <strong>and</strong> Sala, 1998b; Villamil, 1997) – see<br />

Figure 4.2.<br />

This chapter refers mainly to extra-Andean Argentinian Patagonia , an area<br />

<strong>of</strong> treeless semi -arid grass <strong>and</strong> shrub steppes that has been grazed by domestic<br />

ungulates for over a century.<br />

Patagonia is mostly made up <strong>of</strong> sedimentary l<strong>and</strong>scapes that blend with<br />

volcanic deposits from <strong>the</strong> Mesozoic <strong>and</strong> Tertiary eras, unfolding as a series<br />

<strong>of</strong> plateaus that lose elevation eastward from <strong>the</strong> Andes (Soriano, 1983). The<br />

Patagonian mesa l<strong>and</strong>scape is interrupted by a series <strong>of</strong> rivers that flow from<br />

<strong>the</strong> Andes to <strong>the</strong> Atlantic, such as <strong>the</strong> Colorado, Negro, Chubut, Chico, Santa<br />

Cruz <strong>and</strong> Coyle. Irrigated floodplains in some valleys have allowed <strong>the</strong> development<br />

<strong>of</strong> agricultural oases (Table 4.1).<br />

TABLE 4.1<br />

Biozones <strong>of</strong> Patagonia grouped according to phytogeographical province.<br />

Phytogeographical province Biozone code (1) Dominant physiognomic type Area (km 2 )<br />

Patagonia Kg 11 Semi-deserts 1 95 400<br />

Kf 11 Semi-deserts 2 68 800<br />

Jg 11 Patagonian shrub steppes 134 800<br />

Jf 11 Shrub-grass steppes 99 900<br />

Jd 12 Grass- shrub steppes 43 600<br />

Id 12 Grass steppes 48 600<br />

Monte Hg 11 Scrub l<strong>and</strong>s 48 300<br />

Jh 11 Monte shrub steppes 2 134 500<br />

Ig 4 Monte shrub steppes 1 54 400<br />

Subantarctic Ha 12 Ecotone forest- steppes <strong>and</strong> mesic grassl<strong>and</strong>s 52 400<br />

Ea 2 Closed deciduous forests 69 100<br />

Agro-ecosystems Gd 12 Irrigated valleys 22 600<br />

NOTES: (1) Biozone codes are those <strong>of</strong> Paruelo, Jobággy <strong>and</strong> Sala, 1998.<br />

SOURCE: Paruelo, Jobággy <strong>and</strong> Sala, 1998. Reproduced by permission <strong>of</strong> authors <strong>and</strong> editors <strong>of</strong> Ecología Austral.


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 123<br />

Figure 4.1<br />

Extent <strong>of</strong> grassl<strong>and</strong>s in Latin America.<br />

Description <strong>of</strong> Patagonia ’s climate is hampered by <strong>the</strong> low density <strong>and</strong><br />

very uneven distribution <strong>of</strong> wea<strong>the</strong>r stations (40 000 km 2 /station) (Paruelo et<br />

al., 1998). Climate is influenced mostly by Pacific Ocean air masses forced<br />

inl<strong>and</strong> by prevailing westerlies, across ocean currents that are warmer than<br />

<strong>the</strong> l<strong>and</strong> masses <strong>and</strong> move towards <strong>the</strong> equator (MacArthur, 1972). The Andes


124<br />

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<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Figure 4.2<br />

A map <strong>of</strong> <strong>the</strong> provinces <strong>of</strong> Argentinian Patagonia (shaded area) <strong>and</strong><br />

neighbouring provinces (Digital Cartography by Ing. Ag. Liliana González).<br />

st<strong>and</strong> between <strong>the</strong> moist air <strong>and</strong> <strong>the</strong> Patagonian steppes, creating an extensive<br />

rain-shadow that controls climatic patterns (Paruelo et al., 1998). There is a<br />

very steep gradient <strong>of</strong> mean annual precipitation (MAP), decreasing towards<br />

<strong>the</strong> east, from 4 000 mm at <strong>the</strong> Andes eastern foothills (at about 42°S) down<br />

to 150 mm in <strong>the</strong> central plateau 180 km east <strong>of</strong> <strong>the</strong> mountains (Soriano,<br />

1983). Inter-annual variation in precipitation increases exponentially with<br />

decreasing rainfall, reaching coefficients <strong>of</strong> variation greater than 45 percent<br />

at <strong>the</strong> drier end <strong>of</strong> <strong>the</strong> gradient (Jobággy, Paruelo <strong>and</strong> León, 1995). The east<br />

coast is influenced by moist air from <strong>the</strong> Atlantic, with somewhat higher<br />

annual precipitation (200 to 220 mm) evenly distributed, as opposed to <strong>the</strong><br />

winter rainfall <strong>of</strong> most <strong>of</strong> Patagonia (Paruelo et al., 1998; Soriano, 1983).<br />

The ratio <strong>of</strong> mean annual precipitation to potential evapotranspiration<br />

(MAP/PET ratio) <strong>of</strong> <strong>the</strong> steppes fluctuates between 0.45 <strong>and</strong> 0.11, with<br />

marked deficits in spring <strong>and</strong> summer (Paruelo et al., 1998). Water is <strong>the</strong> most<br />

important factor regulating primary production. Some <strong>of</strong> <strong>the</strong> variation can<br />

be associated with El Niño-La Niña cycles (Paruelo et al., 1998), but Cibils<br />

<strong>and</strong> Coughenour (2001) reported a longer-term cycle for MAP in sou<strong>the</strong>rn<br />

Patagonia: a significant decrease in precipitation from 1930 to 1960 <strong>and</strong> a<br />

reversal <strong>of</strong> this trend (significant increase) over <strong>the</strong> subsequent thirty years<br />

in Río Gallegos.


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 125<br />

Mean annual temperatures range from 15.9°C in <strong>the</strong> north (Cippoletti) to<br />

5.4°C in <strong>the</strong> far south <strong>of</strong> Tierra del Fuego (Ushuaia) (Soriano, 1983). Mean<br />

temperatures <strong>of</strong> <strong>the</strong> coldest month (July) are above <strong>the</strong> frost mark, although<br />

absolute minimum temperatures can be below -20°C (Paruelo et al., 1998).<br />

Cibils <strong>and</strong> Coughenour (2001) reported a significant increase in mean annual<br />

temperatures over <strong>the</strong> last 60 years <strong>of</strong> <strong>the</strong> twentieth century for Río Gallegos, a<br />

town with one <strong>of</strong> <strong>the</strong> longest wea<strong>the</strong>r records, on <strong>the</strong> steppes surrounding <strong>the</strong><br />

Straits <strong>of</strong> Magellan. This trend is consistent with predictions <strong>of</strong> climate change<br />

from Global Circulation Models simulating enhanced atmospheric CO2 concentration<br />

(Hulme <strong>and</strong> Sheard, 1999), but conclusions from wea<strong>the</strong>r station<br />

data analysis are still preliminary.<br />

Strong, persistent westerly winds are an outst<strong>and</strong>ing characteristic <strong>of</strong><br />

Patagonia ’s climate. Because <strong>the</strong>re is relatively little l<strong>and</strong> in <strong>the</strong> Sou<strong>the</strong>rn<br />

Hemisphere, westerlies between 40°S <strong>and</strong> 50°S gain impressive momentum,<br />

with annual intensities <strong>of</strong> between 15 <strong>and</strong> 22 km/h <strong>and</strong> frequent gusts <strong>of</strong> over<br />

100 km/h, mostly in spring <strong>and</strong> summer (MacArthur, 1972; Paruelo et al., 1998;<br />

Soriano, 1983). Strong winds increase evaporation <strong>and</strong> can have a considerable<br />

influence on sheep performance through chill (Borrelli, unpublished data;<br />

Soriano, 1983).<br />

Over half <strong>of</strong> Patagonia ’s soils are Aridisols (desert soils), with Entisols (soils<br />

with little development ) <strong>and</strong> Mollisols (dark coloured, base-rich steppe soils),<br />

respectively, as <strong>the</strong> second <strong>and</strong> third most important types (del Valle, 1998).<br />

Over 70 percent <strong>of</strong> topsoil is coarse-textured, ranging from s<strong>and</strong> to s<strong>and</strong>yloam<br />

(del Valle, 1998). Soil textures can explain a large portion <strong>of</strong> <strong>the</strong> variation<br />

in dominant plant life form (grasses vs shrubs) across <strong>the</strong> region (Noy-Meir,<br />

1973; Sala, Lauenroth <strong>and</strong> Golluscio, 1997). Small-scale spatial heterogeneity <strong>of</strong><br />

soils tends to increase with aridity (Ares et al., 1990); important differences in<br />

leaching <strong>and</strong> salinity occur over short distances, possibly causing soils within a<br />

taxonomic group to function differently (del Valle, 1998, <strong>and</strong> references <strong>the</strong>rein).<br />

Over 90 percent <strong>of</strong> Patagonian soils are degraded to some degree, mostly<br />

because <strong>of</strong> improper l<strong>and</strong> use; severe desertification affects 19 to 30 percent<br />

<strong>of</strong> <strong>the</strong> region (del Valle, 1998). Some <strong>of</strong> <strong>the</strong> most dramatic erosion processes<br />

occur in <strong>the</strong> form <strong>of</strong> s<strong>and</strong> macro-accumulations that, in <strong>the</strong> early 1970s, covered<br />

approximately 85 000 km 2 (Soriano, 1983). Both aerial photography <strong>and</strong><br />

satellite imagery indicate that many <strong>of</strong> <strong>the</strong>se accumulations are about 100 years<br />

old, suggesting that <strong>the</strong> rate <strong>of</strong> wind-driven erosion has been accelerated by <strong>the</strong><br />

introduction <strong>of</strong> domestic livestock (Soriano, 1983).<br />

Archaeological records from caves suggest that human occupation began<br />

around 11 000 BP (Borrero <strong>and</strong> McEwan, 1997). Native peoples were hunterga<strong>the</strong>rers,<br />

although <strong>the</strong>re are indications <strong>of</strong> limited agricultural activity in <strong>the</strong><br />

north (Villamil, 1997). Bifacial stone weapons suggest that people <strong>of</strong> south<br />

Patagonia hunted guanaco (Lama guanicoe). The Mapuche tribe occupied <strong>the</strong><br />

nor<strong>the</strong>rn reaches, <strong>the</strong> Tehuelches <strong>the</strong> sou<strong>the</strong>rn mainl<strong>and</strong>, <strong>and</strong> <strong>the</strong> Selknam,


126<br />

Sheep numbers<br />

(millions)<br />

20<br />

15<br />

10<br />

5<br />

0<br />

Figure 4.3<br />

Sheep population by province in Argentinian Patagonia .<br />

SOURCE: SAGPyA, 2001.<br />

Plate 4.1<br />

Merino flock in Patagonia.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

1895 1914 1930 1947 1958 1969 1978 1988 1995 2000<br />

Year<br />

Neuquen Rio Negro Chubut Santa Cruz T.del Fuego<br />

Haush <strong>and</strong> Yámana tribes occupied Tierra del Fuego <strong>and</strong> surrounding isl<strong>and</strong>s<br />

(McEwan, Borrero <strong>and</strong> Prieto, 1997, <strong>and</strong> references <strong>the</strong>rein). European contact<br />

with natives began early in <strong>the</strong> sixteenth century; it is thought that conquerors<br />

named <strong>the</strong> natives after Patagón, a fantastical character <strong>of</strong> <strong>the</strong> Spanish chivalric<br />

tale Primaleón (Duviols, 1997: 129-130). European settlement only began at<br />

<strong>the</strong> end <strong>of</strong> <strong>the</strong> nineteenth century, mostly from Spain <strong>and</strong> <strong>the</strong> British Isles, or<br />

companies that established sheep farms (Barbería, 1995).<br />

V.A. DEREGIBUS & M.F. GARBULSKY


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 127<br />

There are currently over 12 000 sheep farms (family or company owned)<br />

in Patagonia , with flocks ranging from less than 1 000 to over 90 000 head<br />

(Méndez Casariego, 2000). According to <strong>the</strong> latest on-farm population census<br />

(1988) <strong>the</strong>re were 75 000 people on sheep farms <strong>and</strong> irrigated valley farms. From<br />

<strong>the</strong> 1970s to present, <strong>the</strong> rural population increased in Río Negro (+44%) <strong>and</strong><br />

Tierra del Fuego (+132%), remained fairly stable in Neuquén, <strong>and</strong> decreased<br />

in Chubut (-33%) <strong>and</strong> Santa Cruz (-44%) (Méndez Casariego, 2000). Over <strong>the</strong><br />

same period, <strong>the</strong> on-farm population increased in Neuquén (+51%) <strong>and</strong> Río<br />

Negro (+5%) <strong>and</strong> decreased in Chubut (-28%), Santa Cruz (-41%) <strong>and</strong> Tierra<br />

del Fuego (-26%) (Méndez Casariego, 2000).<br />

Patagonia ’s grassl<strong>and</strong>s have only been grazed by sheep for just over a century.<br />

Sheep numbers peaked in 1952, at over 21 million, <strong>and</strong> since <strong>the</strong>n numbers<br />

have been slowly shrinking, to about 8.5 million in 1999 (Méndez Casariego,<br />

2000) (Figure 4.3). Ranchers raise unherded Merino (Plate 4.1) or Corriedale<br />

flocks in continuously-grazed large pastures, usually for wool (Soriano, 1983).<br />

Wool production is fairly insensitive to forage scarcity associated with high<br />

stocking-rates or drought , so several authors have blamed present day l<strong>and</strong><br />

degradation on <strong>the</strong> wool-oriented operations (Borrelli et al., 1997; Golluscio,<br />

Deregibus <strong>and</strong> Paruelo, 1998; Covacevich, Concha <strong>and</strong> Carter, 2000). Cattle<br />

have increased steadily over <strong>the</strong> last 50 years (Méndez Casariego, 2000) <strong>and</strong><br />

although present numbers (836 000) are more than double those <strong>of</strong> 1952, this<br />

does not compensate for <strong>the</strong> decrease in sheep (Méndez Casariego, 2000).<br />

The numbers <strong>of</strong> horses <strong>and</strong> goats have decreased considerably, but not as<br />

dramatically as sheep. The most recent figures (1999) indicate that <strong>the</strong>re are<br />

180 000 horses <strong>and</strong> 827 000 goats – roughly half <strong>of</strong> <strong>the</strong> previous peak populations<br />

(Méndez Casariego, 2000). Goat farming is mainly in <strong>the</strong> north, such as<br />

Neuquén province, where numbers have remained fairly constant in spite <strong>of</strong><br />

<strong>the</strong> general negative tendency (Méndez Casariego, 2000).<br />

Guanacos are <strong>the</strong> only large native ungulate (Soriano, 1983) <strong>and</strong> although<br />

<strong>the</strong> region has generally been considered to have evolved under light grazing<br />

pressure (Milchunas, Sala <strong>and</strong> Lauenroth, 1988), pre-European numbers <strong>of</strong><br />

guanacos may have been higher than previously thought (Lauenroth, 1998);<br />

recent counts show populations are fairly stable at approximately 500 000<br />

(Amaya et al., 2001). The native vertebrate fauna is poor (Soriano, 1983). The<br />

lesser rhea (Pterocnemia pennata pennata) <strong>and</strong> <strong>the</strong> upl<strong>and</strong> goose (Cloephaga<br />

picta) are <strong>the</strong> most conspicuous birds . The Patagonian hare (Dolichotis patagonum)<br />

<strong>and</strong> <strong>the</strong> small armadillo (Zaedyus pichyi), toge<strong>the</strong>r with <strong>the</strong> lesser<br />

rheas , are important zoogeographical indicators (Soriano, 1983). There are<br />

significant numbers <strong>of</strong> predators , such as red foxes (Dusicyon culpaeus),<br />

grey foxes (Ducisyon griseus), pumas (Felis concolor) <strong>and</strong> skunks (Conepatus<br />

humboldtii) (Soriano, 1983). Red foxes <strong>and</strong> pumas are responsible for most<br />

predation, <strong>and</strong> lamb losses due to red fox predation can be as high as 75 to<br />

80 percent (Manero, 2001).


128<br />

28<br />

6 8<br />

58<br />

Title deed Legal occupants<br />

Hire contracts Unfenced public l<strong>and</strong><br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Figure 4.4<br />

L<strong>and</strong> tenure regimes in<br />

Argentinian Patagonia<br />

(SOURCE: Adapted from Peralta, 1999)<br />

POLITICAL SYSTEM<br />

Argentinian Patagonia has five provinces: Neuquén, Río Negro, Chubut,<br />

Santa Cruz <strong>and</strong> Tierra del Fuego (Figure 4.2). Parts <strong>of</strong> o<strong>the</strong>r provinces, such<br />

as Buenos Aires, La Pampa <strong>and</strong> Mendoza, are in <strong>the</strong> Patagonian environment.<br />

As a Federal Republic, each province <strong>of</strong> Argentina has an elected government.<br />

A Governor, <strong>the</strong> executive, is elected every four years. Each province has<br />

a Constitution, Legislative Power <strong>and</strong> an independent Judicial Power.<br />

Argentinian Patagonian provinces are relatively new because most <strong>of</strong> <strong>the</strong>m<br />

were national territories until after <strong>the</strong> Second <strong>World</strong> War; national territories<br />

depended entirely on <strong>the</strong> central government in Buenos Aires. Irruption <strong>of</strong><br />

dictatorships in Argentina between 1966 <strong>and</strong> 1983 prevented <strong>the</strong> exercise <strong>of</strong><br />

democracy, so Patagonian provinces are young democratic states, in which<br />

political forces <strong>and</strong> institutions are beginning to organize <strong>and</strong> evolve.<br />

LAND TENURE<br />

Private property is <strong>the</strong> most important l<strong>and</strong> tenure form, as shown in<br />

Figure 4.4 (Peralta, 1999). Permanent title deeds predominate, but legal<br />

occupation is also significant. Unfenced public l<strong>and</strong>s comprise a small<br />

percentage <strong>of</strong> farms , <strong>and</strong> are locally important in Neuquén. L<strong>and</strong> tenure<br />

variation is related to <strong>the</strong> colonization process, which is summarized<br />

below.<br />

Aboriginal distribution<br />

There were many ethnic groups prior to colonization. Mapuches lived<br />

in <strong>the</strong> northwest, Tehuelches lived on most <strong>of</strong> <strong>the</strong> continental part <strong>of</strong> <strong>the</strong><br />

steppe, <strong>and</strong> Onas lived on <strong>the</strong> steppes <strong>of</strong> Tierra del Fuego. All <strong>of</strong> <strong>the</strong>se were<br />

“terrestrial cultures” (Borrero, 1997). Tehuelches <strong>and</strong> Onas were migratory<br />

hunters. There were also “canoe cultures”on <strong>the</strong> coasts <strong>of</strong> <strong>the</strong> Beagle Channel


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 129<br />

in Tierra del Fuego, which were reduced, absorbed or exterminated by<br />

Europeans (Martinic, 1997). Tehuelches were severely reduced <strong>and</strong> absorbed<br />

by European colonization. Fences <strong>and</strong> <strong>the</strong> concept <strong>of</strong> private property<br />

limited <strong>the</strong> opportunity for migratory hunting. As Martinic (1997) pointed<br />

out, “cultural exchange was unidirectional, from <strong>the</strong> colonists to <strong>the</strong> Indians,<br />

which affected <strong>the</strong> latter’s hunting <strong>and</strong> fishing tools <strong>and</strong> customs, relationship<br />

with natural resources , social behaviour, health <strong>and</strong> very survival as people”.<br />

Survivors mostly became farm employees <strong>and</strong> in a few generations had lost<br />

most <strong>of</strong> <strong>the</strong>ir language <strong>and</strong> culture. There are a few reservations suitable for<br />

raising sheep <strong>and</strong> horses where Tehuelche descendants subsist.<br />

The Mapuches were better able to maintain <strong>the</strong>ir culture <strong>and</strong> survive<br />

under conditions imposed by colonizing groups, <strong>and</strong> <strong>the</strong>ir descendants live in<br />

Neuquén, western Río Negro <strong>and</strong> northwest Chubut. More than 3 000 family<br />

groups live on public pastures raising goats <strong>and</strong> sheep (Casas, 1999). Some<br />

families have fenced or demarcated individual grazing l<strong>and</strong>s , which <strong>the</strong>y run<br />

as legal occupants. Many o<strong>the</strong>rs graze on common l<strong>and</strong>s, where transhumance<br />

is still practiced, from low winter ranges (invernadas) to high summer ranges<br />

(veranadas) (Casas, 1999).<br />

Welsh colonization<br />

In 1866 a colony <strong>of</strong> Welsh immigrants established <strong>the</strong>mselves in <strong>the</strong> lower<br />

valley <strong>of</strong> <strong>the</strong> Río Chubut, close to <strong>the</strong> Atlantic coast (Mainwaring, 1983); <strong>the</strong><br />

settlers had enormous difficulty in surviving. They made little progress until<br />

1885, when several horsemen rode west <strong>and</strong> settled as sheep farmers in <strong>the</strong><br />

Andes foothills. The colony did not prosper until settlers managed to develop<br />

irrigation <strong>and</strong> learn basic farming skills (Mainwaring, 1983).<br />

First settlers<br />

The first sheep farmers arrived in 1885 (Barbería, 1995). The government in<br />

Buenos Aires granted l<strong>and</strong> concessions to settlers. After a visit <strong>of</strong> Governor<br />

Moyano to <strong>the</strong> Falkl<strong>and</strong> Isl<strong>and</strong>s, colonization started on <strong>the</strong> most suitable<br />

l<strong>and</strong> for sheep, i.e. grass steppes close to <strong>the</strong> Andes foothills <strong>and</strong> in sou<strong>the</strong>rn<br />

Santa Cruz <strong>and</strong> nor<strong>the</strong>rn Tierra del Fuego (Lafuente, 1981). By 1908, families<br />

<strong>and</strong> large companies occupied <strong>the</strong> most productive l<strong>and</strong>. Settlers were mainly<br />

Spanish, Scottish, English, German <strong>and</strong> French. By <strong>the</strong> end <strong>of</strong> l<strong>and</strong> concessions,<br />

settlers had obtained private title to <strong>the</strong>ir l<strong>and</strong>s (Lafuente, 1981; Barbería, 1995)<br />

Last settlers<br />

The success <strong>of</strong> <strong>the</strong> first settlers encouraged new waves <strong>of</strong> immigrants, who<br />

occupied prtogressively drier areas until 1940, by when Patagonia was fully<br />

colonized (Barbería, 1995). In 1908, national legislation prevented liberal<br />

distribution <strong>of</strong> remaining public range (Lafuente, 1981). In an attempt to<br />

restrict <strong>the</strong> amount <strong>of</strong> l<strong>and</strong> purchased by an individual, Patagonia was divided


130<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

into equal-sized blocks that were assigned to settlers without considering<br />

carrying capacity (Barbería, 1985), so most settlers received a limited amount<br />

<strong>of</strong> relatively unproductive l<strong>and</strong>, which <strong>the</strong>reafter was subject to high grazing<br />

pressure . Most farms are now privately owned, under legal occupation or with<br />

permanent title (Casas, 1999).<br />

Management authorities<br />

The responsibility <strong>of</strong> provincial government to ensure sustainable management<br />

<strong>of</strong> natural resources is recognized in Provincial Constitutions, which<br />

were mostly amended in <strong>the</strong> 1990s <strong>and</strong> clearly define this role, but legislation<br />

is ei<strong>the</strong>r weak or not enforced. By <strong>the</strong> end <strong>of</strong> <strong>the</strong> 1980s, “desertification”<br />

was well established as a subject <strong>of</strong> discussion, but sustainable use policies<br />

have still not been achieved. There is lack <strong>of</strong> institutional development for<br />

natural resources administration at provincial <strong>and</strong> national levels (Consorcio<br />

DHV, 1999). The federal Department <strong>of</strong> Sustainable Development <strong>and</strong><br />

Environmental Policy, which is responsible for national policies on sustainable<br />

management , carries out planning, coordination <strong>and</strong> training. A National<br />

Plan for Desertification Control was formulated in 1998, but has not been<br />

implemented due to funding constraints.<br />

MARKET SYSTEMS<br />

Wool market systems<br />

Patagonian wool is mainly exported; domestic consumption is less than<br />

10 percent <strong>of</strong> greasy wool produced. Wool is mainly exported as tops<br />

<strong>and</strong> scoured wool. China , Italy, Germany <strong>and</strong> France have been <strong>the</strong> main<br />

customers (Argentine Wool Federation, 2001). Scouring <strong>and</strong> combing is done<br />

by multinational companies <strong>and</strong> some local industries in Trelew (Chubut), <strong>the</strong><br />

main wool textile centre <strong>of</strong> Argentina . Sheep farms in nor<strong>the</strong>rn <strong>and</strong> central<br />

Patagonia produce fine Merino wool, while farms in <strong>the</strong> south produce fine<br />

crossbred Corriedale -type wool (Argentine Wool Federation, 2001). Direct<br />

sales from farmers to wool processors <strong>and</strong> exporters predominate, but <strong>the</strong>re<br />

are a few wool concentration <strong>and</strong> auction sale mechanisms (Peralta, 1999).<br />

In <strong>the</strong> 1980s, many wool cooperatives were created, but most collapsed due<br />

to financial problems <strong>and</strong> lack <strong>of</strong> managerial skills. Subsistence farmers with<br />

small quantities usually barter for basic goods with middlemen (Peralta,<br />

1999).<br />

In 1994, <strong>the</strong> government launched PROLANA , a joint wool quality<br />

programme with provincial governments, to improve shearing, h<strong>and</strong>ling,<br />

grading <strong>and</strong> packing, prevent contamination <strong>and</strong> improve wool appearance.<br />

By 2000, 37 percent <strong>of</strong> Patagonia ’s wool was processed under PROLANA<br />

procedures (SAGPyA, 2001). This Programme increased market transparency<br />

significantly by exp<strong>and</strong>ing farmer awareness regarding <strong>the</strong> characteristics <strong>and</strong><br />

value <strong>of</strong> wool.


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 131<br />

Meat marketing<br />

Grassl<strong>and</strong> -based systems produce about 10 500 tonne/year <strong>of</strong> high quality<br />

lamb <strong>and</strong> mutton (SAGPyA, 2001), which is natural , free from diseases <strong>and</strong><br />

contaminants, with low fat content <strong>and</strong> a mild flavour, but <strong>the</strong> local markets<br />

are not sensitive to meat quality. Most lamb is exported to Europe (SAGPyA,<br />

2001). Wool-oriented Merino farms have a low reproductive efficiency (less<br />

than 60 percent lambing) <strong>and</strong> produce few lambs. The meat production areas are<br />

sou<strong>the</strong>rn Santa Cruz <strong>and</strong> nor<strong>the</strong>rn Tierra del Fuego, where forage production<br />

is higher <strong>and</strong> Corriedale operations are oriented to lamb production (Borrelli<br />

et al., 1997; Méndez Casariego, 2000).<br />

Farmers sell to local abattoirs, which supply supermarkets <strong>and</strong> retail<br />

butchers. Overseas markets were historically <strong>the</strong> most important meat buyers<br />

(Lafuente, 1981). The progressive reduction in <strong>the</strong> number <strong>of</strong> animals for<br />

slaughter caused <strong>the</strong> collapse <strong>of</strong> large (mostly foreign) companies that had<br />

operated in <strong>the</strong> region from <strong>the</strong> beginning <strong>of</strong> <strong>the</strong> twentieth century. Most lamb<br />

was marketed locally during <strong>the</strong> 1990s (SAGPyA, 2001). Recently, a farmerowned<br />

company began processing <strong>and</strong> exporting lamb from Santa Cruz. Many<br />

farmers in this project have organic certification that allows <strong>the</strong>m to enter<br />

premium market niches.<br />

DOMINANT NATURAL VEGETATION<br />

Extra-Andean Patagonia is covered by treeless shrub <strong>and</strong> grass steppes that give<br />

way to dwarf-shrub semi -deserts in <strong>the</strong> drier areas <strong>of</strong> <strong>the</strong> central plateaus (Roig,<br />

1998). Vegetation is characterized by <strong>the</strong> dominance <strong>of</strong> xerophytes, which<br />

have evolved remarkable adaptations to cope with severe water deficit (León<br />

et al., 1998). Shrubs, for example, have ei<strong>the</strong>r very small sclerophyllous leaves<br />

with abundant gl<strong>and</strong>ular hairs, or leaves with thick cuticles, <strong>and</strong> <strong>of</strong>ten dwarf<br />

cushion growth habits. Grasses commonly have leaves with a thick cuticle,<br />

convoluted laminae <strong>and</strong> bunch growth habits, with fairly large accumulations<br />

<strong>of</strong> dead biomass (León et al., 1998). Blended in <strong>the</strong> steppe l<strong>and</strong>scapes are small<br />

areas associated with rivers or permanent water sources, with more mesic<br />

plant communities comprising mostly grasses, sedges <strong>and</strong> rushes, referred to as<br />

riparian meadows (Golluscio, Deregibus <strong>and</strong> Paruelo, 1998; Roig, 1998), <strong>and</strong>,<br />

although <strong>the</strong>y account for a very small proportion <strong>of</strong> <strong>the</strong> total area, <strong>the</strong>y play a<br />

key role in livestock production <strong>and</strong>, in many instances, suffer most from <strong>the</strong><br />

effects <strong>of</strong> bad l<strong>and</strong> management (Golluscio, Deregibus <strong>and</strong> Paruelo, 1998).<br />

Two phytogeographic provinces occupy all <strong>of</strong> arid <strong>and</strong> semi -arid Patagonia :<br />

<strong>the</strong> Patagonian phytogeographic province, <strong>and</strong> <strong>the</strong> Monte phytogeographic<br />

province (Cabrera, 1971). The latter occupies most <strong>of</strong> <strong>the</strong> arid west <strong>of</strong> Argentina ;<br />

its sou<strong>the</strong>rn tip enters Patagonia, occupying approximately <strong>the</strong> nor<strong>the</strong>rn third<br />

<strong>of</strong> <strong>the</strong> region. The remaining two thirds <strong>of</strong> extra-Andean Patagonia correspond<br />

to <strong>the</strong> Patagonian phytogeographic province (Table 4.1) (Cabrera, 1971).<br />

Most classifications <strong>of</strong> natural vegetation types <strong>of</strong> have used ei<strong>the</strong>r structural


132<br />

Figure 4.5<br />

Biozones <strong>of</strong> Patagonia , from Paruelo, Jobággy <strong>and</strong> Sala (1998).<br />

(Reproduced with permission <strong>of</strong> <strong>the</strong> authors <strong>and</strong> <strong>the</strong> editors <strong>of</strong> Ecología Austral)<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

(physiognomic) characteristics <strong>of</strong> dominant plant life-forms (Cabrera, 1971;<br />

Soriano, 1983; León et al., 1998; Roig, 1998) or phytosociological approaches<br />

as <strong>the</strong> main grouping criteria (Collantes, Anchorena <strong>and</strong> Cingolani, 1999;<br />

Golluscio, León <strong>and</strong> Perelman, 1982; Boelcke, Moore <strong>and</strong> Roig, 1985).<br />

Recently, Paruelo, Jobbágy <strong>and</strong> Sala (1998b) classified <strong>the</strong> vegetation <strong>of</strong> <strong>the</strong><br />

region on <strong>the</strong> basis <strong>of</strong> functional characteristics, using productivity -related<br />

indices derived from NOAA satellite imagery analysis (Figure 4.5 <strong>and</strong><br />

Table 4.1). An advantage <strong>of</strong> this approach is that it provides a functional upto-date<br />

classification <strong>of</strong> vegetation, reflecting <strong>the</strong> current state <strong>of</strong> rangel<strong>and</strong>s,


V.A. DEREGIBUS & M.F. GARBULSKY<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 133<br />

Plate 4.2<br />

A typical Patagonian shrub steppe.<br />

ra<strong>the</strong>r than <strong>the</strong> potential expected vegetation types typical <strong>of</strong> most structural<br />

classification maps. This section follows <strong>the</strong> grouping <strong>of</strong> biomes proposed by<br />

Paruelo et al. (1998), but endeavours to produce a syn<strong>the</strong>sis <strong>of</strong> both structural<br />

<strong>and</strong> functional aspects <strong>of</strong> <strong>the</strong> vegetation <strong>of</strong> each biome .<br />

Patagonian shrub steppes<br />

This vegetation type (Unit Jg 11 in Figure 4.5) accounts for close to 20 percent<br />

<strong>of</strong> <strong>the</strong> semi -arid area (Paruelo, Jobbágy <strong>and</strong> Sala, 1998b) (Plate 4.2). Overall,<br />

<strong>the</strong> MAP <strong>of</strong> this area is below 200 mm; vegetation cover varies between 30<br />

<strong>and</strong> 50 percent <strong>and</strong> annual above ground net primary productivity (ANPP )<br />

estimated from NDVI -I values (<strong>the</strong> annual integral <strong>of</strong> <strong>the</strong> Normalized<br />

Difference Vegetation Index ) is 490 kg/ha/yr (León et al., 1998; Paruelo,<br />

Jobbágy <strong>and</strong> Sala, 1998b). The physiognomy <strong>of</strong> this unit is that <strong>of</strong> a bi-layered<br />

shrubl<strong>and</strong>: an upper layer <strong>of</strong> shrubs circa 100 cm high, <strong>and</strong> a lower layer made<br />

up <strong>of</strong> shrubs with crown heights that rarely exceed 15–20 cm (León et al., 1998).<br />

The most conspicuous shrubs are Chuquiraga avellanedae , Lycium ameghinoi ,<br />

L. chilense , Verbena ligustrina , Prosopis denudans <strong>and</strong> Colliguaya integerrima<br />

(León et al., 1998; Roig, 1998). Grasses <strong>of</strong> <strong>the</strong> genera Stipa , Festuca <strong>and</strong> Poa , such<br />

as Stipa neaei , S. speciosa , Festuca argentina <strong>and</strong> Poa ligularis , occur as a sparse<br />

understorey (León et al., 1998). Shrub steppes occur in transition areas between<br />

<strong>the</strong> grass steppes <strong>and</strong> <strong>the</strong> semi-deserts (Paruelo, Jobbágy <strong>and</strong> Sala, 1998b).


134<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Semi-deserts <strong>and</strong> shrub steppes<br />

Semi-deserts <strong>and</strong> shrub steppes (Units Kg 11 <strong>and</strong> Kf 11 in Figure 4.5) exhibit<br />

similar latitudinal extents; toge<strong>the</strong>r, both variants <strong>of</strong> semi -desert cover 22 percent<br />

<strong>of</strong> <strong>the</strong> region, with plant communities <strong>of</strong> low diversity, including, on average,<br />

19 plant species (Golluscio, León <strong>and</strong> Perelman, 1982). The MAP <strong>of</strong> much <strong>of</strong><br />

<strong>the</strong> area is less than 150 mm. Patagonian semi-deserts are less productive than<br />

shrub steppes; ANPP calculated from NDVI -I values by Paruelo, Jobbágy <strong>and</strong><br />

Sala (1998b) are 450 <strong>and</strong> 390 kg/ha/yr for units Kg 11 <strong>and</strong> Kf 11, respectively<br />

(Table 4.1). From a species composition st<strong>and</strong>point, Kf 11 is <strong>the</strong> most typical<br />

<strong>and</strong> less degraded semi-desert type , in spite <strong>of</strong> being less productive (Soriano,<br />

1983). Dwarf shrubs with cushion habits are typical <strong>of</strong> this vegetation type in <strong>the</strong><br />

Kg 11 <strong>and</strong> Kf 11 units. Nassauvia glomerulosa , N. ulicina <strong>and</strong> Chuquiraga aurea<br />

are dominant, accompanied by o<strong>the</strong>rs such as Chuquiraga kingii , Brachyclados<br />

caespitosus <strong>and</strong> Perezia lanigera (León et al., 1998). Grasses such as Stipa<br />

humilis , S. ibarii , S. ameghinoi <strong>and</strong> shrubs such as Chuquiraga avellanedae ,<br />

Schinus polygamus <strong>and</strong> Lycium chilense are secondary species in semi-desert<br />

plant communities . Some co-dominant species occur, but only in <strong>the</strong> Kg 11<br />

semi-deserts: dwarf shrubs such as Azorella caespitosa , Mullinum microphyllum<br />

<strong>and</strong> Frankenia sp. , grasses such as Poa dusenii , P. ligularis <strong>and</strong>, less frequently,<br />

Stipa neaei , <strong>and</strong> shrubs such as Junellia tridens , which occur in clumps on paleodepressions<br />

<strong>and</strong> natural drainage networks (León et al., 1998; Roig, 1998).<br />

Shrub-grass <strong>and</strong> grass-shrub steppes<br />

Shrub-grass <strong>and</strong> grass-shrub steppes span almost <strong>the</strong> entire latitudinal extent<br />

<strong>of</strong> Patagonia <strong>and</strong> cover approximately 20 percent <strong>of</strong> <strong>the</strong> arid area (Units Jf 11<br />

<strong>and</strong> Jd 12 in Figure 4.5). According to Paruelo, Jobbágy <strong>and</strong> Sala (1998b), both<br />

types have similar ANPP levels (650 kg/ha/yr), although NDVI values peak<br />

somewhat later in <strong>the</strong> growing season in grass-shrub steppes . Vegetation cover<br />

<strong>of</strong> <strong>the</strong> shrub-grass steppes is 47 percent, with plant communities that contain<br />

about 26 vascular plant species (Golluscio, León <strong>and</strong> Perelman, 1982). Adesmia<br />

campestris , Mullinum spinosum , Senecio filaginoides , Berberis heterophylla ,<br />

Colleguaya integerrima , Trevoa patagonica <strong>and</strong> Schinus polygamus are <strong>the</strong><br />

most conspicuous shrubs (León et al., 1998). The most important grasses are<br />

Stipa speciosa , S. humilis , Poa ligularis , P. lanuginosa , Festuca argentina <strong>and</strong><br />

F. pallescens , <strong>and</strong> occur with sedges <strong>of</strong> <strong>the</strong> genus Carex (León et al., 1998).<br />

Grass -shrub steppes are a transition between <strong>the</strong> shrub steppes <strong>and</strong> grass<br />

steppes on <strong>the</strong> one h<strong>and</strong> <strong>and</strong> <strong>the</strong> grass-steppes <strong>and</strong> <strong>the</strong> Nothophagus subantarctic<br />

forest ecotone on <strong>the</strong> o<strong>the</strong>r (Figure 4.5) (Roig, 1998). Paruelo, Jobbágy <strong>and</strong><br />

Sala (1998b) combine <strong>the</strong> latter (Chiliotrichum diffusum grass-shrub steppes)<br />

<strong>and</strong> <strong>the</strong> steppe-forest ecotones in sou<strong>the</strong>rn Santa Cruz <strong>and</strong> nor<strong>the</strong>rn Tierra<br />

del Fuego into a single biozone (unit Ha 12). Physiognomically, <strong>the</strong>se are<br />

different domains; <strong>the</strong>y may exhibit similar functional attributes <strong>and</strong> should<br />

be significantly more productive than <strong>the</strong> grass-shrub steppes at <strong>the</strong> opposite


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 135<br />

end <strong>of</strong> <strong>the</strong> moisture gradient. Dominant species <strong>of</strong> <strong>the</strong> grass-shrub steppes<br />

are <strong>the</strong> same as those mentioned above, except for <strong>the</strong> shrubs Junellia tridens ,<br />

Nardophyllum obtusifolium , Berberis buxifolia <strong>and</strong> Chiliotrichum diffusum,<br />

<strong>and</strong> <strong>the</strong> grasses Stipa ibarii , Poa dusenii , Festuca pallescens, F. gracillima <strong>and</strong><br />

F. pyrogea (León et al., 1998; Roig, 1998).<br />

Grass steppes<br />

Grass steppes (Unit Id 12 in Figure 4.5) also span <strong>the</strong> latitudinal extent <strong>of</strong><br />

mainl<strong>and</strong> Patagonia as a belt along <strong>the</strong> Andean foothills, that widens in <strong>the</strong><br />

south, reaching <strong>the</strong> Atlantic Ocean, <strong>and</strong> giving way to <strong>the</strong> Magellanic steppes<br />

that occupy all <strong>of</strong> <strong>the</strong> area surrounding <strong>the</strong> Straits <strong>of</strong> Magellan, on <strong>the</strong> mainl<strong>and</strong><br />

<strong>and</strong> <strong>the</strong> nor<strong>the</strong>rn tip <strong>of</strong> Tierra del Fuego (Figure 4.5) (Paruelo, Jobbágy <strong>and</strong><br />

Sala, 1998; Cibils <strong>and</strong> Coughenour, 2001). This vegetation unit occurs in areas<br />

where MAP exceeds 250 mm. Average ANPP is about 900 kg/ha/yr according<br />

to NDVI -I-derived estimates reported by Paruelo, Jobbágy <strong>and</strong> Sala (1998).<br />

There are about 34 <strong>and</strong> 40 plant species in <strong>the</strong> sub-Andean <strong>and</strong> Magellanic<br />

steppes, respectively (Golluscio, León <strong>and</strong> Perelman, 1982; Boelcke, Moore<br />

<strong>and</strong> Roig, 1985). Vegetation cover is about 65 percent on sub-Andean grass<br />

steppes, where Festuca pallescens accounts for up to 70 percent <strong>of</strong> plant cover<br />

<strong>and</strong> occurs along with F. magellanica , F. pyrogea , Deschampsia elegantula ,<br />

D. flexuosa , Phleum commutatum , Elymus patagonicus <strong>and</strong> Rytidosperma<br />

virescens (León et al., 1998). Magellanic steppes exhibit two main variants:<br />

dry steppes on <strong>the</strong> eastern portion <strong>of</strong> <strong>the</strong> mainl<strong>and</strong>, <strong>and</strong> mesic grassl<strong>and</strong>s in<br />

<strong>the</strong> west <strong>and</strong> sou<strong>the</strong>ast <strong>of</strong> <strong>the</strong> mainl<strong>and</strong> <strong>and</strong> <strong>the</strong> nor<strong>the</strong>rn region <strong>of</strong> Tierra del<br />

Fuego, where MAP exceeds 350 mm. Vegetation cover ranges from 60 to over<br />

80 percent; <strong>the</strong> dominant plant on both variants <strong>of</strong> <strong>the</strong> Magellanic steppe is<br />

Festuca gracillima , a 25-cm-tall tussock-forming bunchgrass that is <strong>the</strong> most<br />

conspicuous life form <strong>of</strong> this ecosystem (Boelcke, Moore <strong>and</strong> Roig., 1985;<br />

Collantes, Anchorena <strong>and</strong> Cingolani, 1999). O<strong>the</strong>r grass <strong>and</strong> grass-like species<br />

are associated with <strong>the</strong> tussocks, such as Poa dusenii , P. poecila , Rytidosperma<br />

virescens, Bromus setifolius , Deschampsia flexuosa, Agropyron magellanicum ,<br />

Festuca magellanica, Agrostis tenuis , Carex <strong>and</strong>ina , C. argentina , among<br />

o<strong>the</strong>rs (Boelcke, Moore <strong>and</strong> Roig, 1985). Empetrum rubrum -dominated<br />

communities occur as heathl<strong>and</strong> blended in <strong>the</strong> grass steppes on south-facing<br />

slopes <strong>of</strong> moraine hills on moister Magellanic steppes (Collantes, Anchorena<br />

<strong>and</strong> Cingolani, 1999).<br />

Monte shrubl<strong>and</strong> s <strong>and</strong> Monte ecotone<br />

A third <strong>of</strong> semi -arid Patagonia is taken up by Monte vegetation units (Units<br />

Jh 11, Ig 4 <strong>and</strong> Hg 11 in Figure 4.5) (Plate 4.3), exhibiting ANPP levels<br />

ranging from 650 to 730 kg/ha/yr (Paruelo, Jobbágy <strong>and</strong> Sala, 1998b). Hg 11<br />

scrubl<strong>and</strong> is <strong>the</strong> most productive <strong>and</strong> is an ecotone between <strong>the</strong> Monte <strong>and</strong><br />

Espinal phytogeographic provinces (Cabrera, 1971; Paruelo, Jobbágy <strong>and</strong> Sala,


136<br />

Plate 4.3<br />

A shrub steppe in <strong>the</strong> Monte.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

1998b). Rainfall rarely exceeds 200 mm <strong>and</strong> tends to be evenly distributed<br />

throughout <strong>the</strong> year (León et al., 1998; Paruelo, Jobbágy <strong>and</strong> Sala, 1998b). The<br />

most conspicuous plant <strong>of</strong> <strong>the</strong>se biomes is Larrea divaricata , which occurs<br />

with L. cuneifolia <strong>and</strong> L. nitida <strong>and</strong> o<strong>the</strong>r shrubs such as Prosopis alpataco<br />

<strong>and</strong> P. flexuosa <strong>and</strong> species <strong>of</strong> Lycium , Chuquiraga , Ephedra <strong>and</strong> Atriplex .<br />

Grasses such as Stipa tenuis , S. speciosa , S. neaei , Poa ligularis <strong>and</strong> P. lanuginosa<br />

make up <strong>the</strong> herbaceous stratum (León et al., 1998). For a description <strong>of</strong> units<br />

corresponding to subantarctic forests <strong>and</strong> forest ecotones, see Veblen, Hill <strong>and</strong><br />

Read (1996) <strong>and</strong> references <strong>the</strong>rein.<br />

PASTORAL AND AGRICULTURAL SYSTEMS<br />

Sheep farming is almost a monoculture in <strong>the</strong> arid <strong>and</strong> semi -arid steppes<br />

(see Plates 4.4 <strong>and</strong> 4.5). Intensive agricultural activities such as fruit <strong>and</strong><br />

horticultural crops are important in a few irrigated valleys, but are almost<br />

absent on sheep farms (Borrelli et al., 1997). Cattle production has become<br />

important on mountain ranges near <strong>the</strong> Andes, where sheep farming is<br />

more difficult due to <strong>the</strong> presence <strong>of</strong> forests, steep l<strong>and</strong>scapes <strong>and</strong> losses to<br />

predators . There has been an important substitution <strong>of</strong> sheep for cattle in <strong>the</strong><br />

Monte region. Agrotourism activities on sheep farms are developing, mostly<br />

in <strong>the</strong> Andes, where <strong>the</strong>re are scenic lakes, mountains <strong>and</strong> glaciers (Borrelli et<br />

al., 1997; Méndez Casariego, 2000).<br />

V.A. DEREGIBUS & M.F. GARBULSKY


PABLO BORELLI<br />

PABLO BORELLI<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 137<br />

Plate 4.4<br />

Sheep being driven up to summer range paddocks in <strong>the</strong> Magellan Steppe .<br />

Plate 4.5<br />

Gauchos herding a Corriedale flock on bunchgrass rangel<strong>and</strong>s in southwestern<br />

Patagonia .<br />

Sheep farming is extensive ; each farm has, on average, three to four 5 000-ha<br />

fenced paddocks. No supplementary feeding is used. On-farm hay or silage<br />

production is insignificant <strong>and</strong> <strong>of</strong>f-farm feeds are too expensive. Animals graze<br />

freely in large areas <strong>and</strong> are never housed, in spite <strong>of</strong> periodic severe winters.<br />

There is significant mortality during big snow falls (Sturzenbaum <strong>and</strong> Borrelli,


138<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

2001). Sheep are ga<strong>the</strong>red three or four times each year. Drinking water comes<br />

from springs <strong>and</strong> lagoons, rivers, artificial ponds <strong>and</strong> windmill-pumped<br />

groundwater.<br />

Patagonia is free <strong>of</strong> Bovine Spongiform Encephalopathy (BSE disease) <strong>and</strong><br />

Foot-<strong>and</strong>-Mouth Disease (FMD) (Robles <strong>and</strong> Olaechea, 2001). Environmental<br />

conditions constrain <strong>the</strong> development <strong>of</strong> internal parasites <strong>and</strong> an<strong>the</strong>lmintics<br />

are <strong>of</strong>ten not necessary (Iglesias, Tapia <strong>and</strong> Alegre, 1992); no antibiotics or<br />

hormonal treatments are used. Patagonian farms supply wool <strong>and</strong> meat that can<br />

naturally reach <strong>the</strong> highest st<strong>and</strong>ards <strong>of</strong> quality in terms <strong>of</strong> food safety <strong>and</strong> lack<br />

<strong>of</strong> contaminants. Despite this, sheep stocks have declined continuously since <strong>the</strong><br />

1980s (Figure 4.4) <strong>and</strong>, under current conditions, sheep farming is unsustainable ,<br />

whe<strong>the</strong>r in economic, ecological or social terms (Noy-Meir, 1995; Borrelli <strong>and</strong><br />

Oliva, 1999; Pickup <strong>and</strong> Stafford-Smith, 1993). Factors contributing to this are<br />

low wool prices, small farm size, poor adoption <strong>of</strong> available technology, desertification,<br />

high winter losses, predator losses, high farmer indebtedness <strong>and</strong> lack <strong>of</strong><br />

sustainable development policies (Borrelli et al., 1997; Consorcio DHV, 1999).<br />

Sheep farming systems<br />

Conditions <strong>and</strong> attributes <strong>of</strong> sheep farming in Patagonia are quite heterogeneous,<br />

in spite <strong>of</strong> <strong>the</strong> general characteristics summarized above. The main sources <strong>of</strong><br />

variation are:<br />

• rain <strong>and</strong> temperature gradients, which form twelve biomes that differ in rangel<strong>and</strong><br />

vegetation , primary <strong>and</strong> secondary productivity <strong>and</strong> potential for rangel<strong>and</strong><br />

improvement (as discussed in <strong>the</strong> natural vegetation section, above); <strong>and</strong><br />

• farm size, as <strong>the</strong> sustainable number <strong>of</strong> sheep that can be kept on a farm<br />

depends on <strong>the</strong> area for grazing <strong>and</strong> its carrying capacity . Because sheep products<br />

are <strong>the</strong> only source <strong>of</strong> income, flock size determines farm income.<br />

Three kinds <strong>of</strong> farms can be recognized (Table 4.2): (1) Large commercial<br />

farms, with more than 6 000 head <strong>and</strong> which are usually derived from <strong>the</strong> first<br />

TABLE 4.2.<br />

Farm distribution by size in Argentinian Patagonia .<br />

Province Criterion Subsistence farms Small to medium units Big companies<br />

Chubut<br />

Neuquén<br />

Río Negro<br />

Santa Cruz<br />

Tierra del Fuego<br />

Total Argentinian<br />

Patagonia<br />

SOURCE: Data from Casas, 1999.<br />

By no. <strong>of</strong> farms: 52% 43% 5%<br />

By no. <strong>of</strong> sheep: 8% 61% 31%<br />

By no. <strong>of</strong> farms: 89% 9% 2%<br />

By no. <strong>of</strong> sheep: 20% 44% 36%<br />

By no. <strong>of</strong> farms: 69% 30% 1%<br />

By no. <strong>of</strong> sheep 20% 64% 16%<br />

By no. <strong>of</strong> farms: 16% 65% 6%<br />

By no. <strong>of</strong> sheep: 2% 49% 49%<br />

By no. <strong>of</strong> farms: – 37% 63%<br />

By no. <strong>of</strong> sheep: – 10% 90%<br />

By no. <strong>of</strong> farms: 54% 40% 6%<br />

By no. <strong>of</strong> sheep: 8% 54% 38%


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 139<br />

settlements <strong>and</strong> on <strong>the</strong> best pastures. (2) Small <strong>and</strong> medium commercial farms,<br />

in <strong>the</strong> drier areas, with flocks <strong>of</strong> 1 000 to 6 000; <strong>the</strong>se have serious financial<br />

problems due to present wool prices. (3) Subsistence farms, with less than 1 000<br />

sheep , mainly in northwestern Patagonia , which belong mostly to aboriginal<br />

families <strong>and</strong> graze on unfenced public l<strong>and</strong>s.<br />

More than half <strong>of</strong> sheep farmers in Patagonia are very poor <strong>and</strong> toge<strong>the</strong>r<br />

own less than 10 percent <strong>of</strong> total sheep (Casas, 1999; Table 4.2). Most <strong>of</strong> <strong>the</strong><br />

o<strong>the</strong>r half is limited by farm size, so at present net farm income does not<br />

satisfy <strong>the</strong>ir economic expectations. A few companies run sheep farms that<br />

can be considered economically viable. Company farms own approximately<br />

40 percent <strong>of</strong> <strong>the</strong> sheep. There is a marked increasing north-south farm size<br />

gradient, beginning in <strong>the</strong> northwest (Neuquén), where subsistence farms<br />

are commonest, to Tierra del Fuego, where large company-owned farms are<br />

more frequent than in any o<strong>the</strong>r province (Table 4.2). The combination <strong>of</strong><br />

biozone <strong>and</strong> farm size (which is related to <strong>the</strong> kind <strong>of</strong> farm operation) gives a<br />

wide range <strong>of</strong> pastoral systems , differing in terms <strong>of</strong> objectives, productivity<br />

<strong>and</strong> sustainability .<br />

GRAZING MANAGEMENT<br />

Farmers make grazing management decisions based on subjective criteria <strong>and</strong><br />

previous experience (Golluscio et al., 1999). Paddocks are grazed continuously<br />

(year-round), except on high altitude ranges grazed in summer (Borrelli<br />

<strong>and</strong> Oliva, 1999). Vast areas, with few paddocks, restrict <strong>the</strong> possibilities<br />

<strong>of</strong> controlling grazing, especially when paddocks include grazing sites with<br />

contrasting forage availability (e.g. meadows <strong>and</strong> arid steppes) (Golluscio et<br />

al., 1999).<br />

Determining stocking rates is <strong>the</strong> most important decision in developing<br />

a grazing plan (Heady <strong>and</strong> Child, 1994). The National Institute for<br />

Agricultural Technology (INTA), Argentina , with <strong>the</strong> aid <strong>of</strong> GTZ (Deutsche<br />

Gesellschaft für Technische Zusammenarbeit), developed range evaluation<br />

methods, based on satellite imagery <strong>and</strong> field measurements, which provide<br />

objective information for <strong>the</strong> formulation <strong>of</strong> sound grazing plans. Improved<br />

management is based on adaptive management that consists <strong>of</strong> a planningexecution-monitoring<br />

-evaluation cycle (Borrelli <strong>and</strong> Oliva, 1999).<br />

Traditional management caused continuous overgrazing in most <strong>of</strong> <strong>the</strong><br />

region, which in turn led to general degradation (Oliva, Rial <strong>and</strong> Borrelli,<br />

1995; Consorcio DHV, 1999). Del Valle (1998) estimated that 65 percent <strong>of</strong><br />

Patagonia was seriously degraded, 17 percent was moderately degraded <strong>and</strong><br />

only 9 percent was lightly affected. In no area was grazing impact negligible.<br />

The DHV report estimated that 75 percent <strong>of</strong> Patagonian meadows were<br />

severely degraded (Consorcio DHV, 1999). A few small-scale farmers have<br />

adopted <strong>the</strong> recommended practices, with good results in terms <strong>of</strong> both animal<br />

production <strong>and</strong> rangel<strong>and</strong> conservation (Borrelli <strong>and</strong> Oliva, 1999).


140<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

SHEEP MANAGEMENT<br />

Severe winters <strong>and</strong> <strong>the</strong> importance <strong>of</strong> spring forage growth relative to o<strong>the</strong>r<br />

seasons led to a farming pattern <strong>of</strong> autumn mating <strong>and</strong> spring lambing.<br />

Shearing was traditionally done between November <strong>and</strong> January, but with<br />

increasing pre-lambing shearing (due to gains in lamb <strong>and</strong> ewe survival <strong>and</strong><br />

wool quality), dates have shifted to September-October. Tally Hi <strong>and</strong> Bowen<br />

shearing promoted by PROLANA (SAGPyA, 2001) are now widespread.<br />

Sheep are eye-shorn two or three times annually, <strong>and</strong> lamb tails are generally<br />

docked during marking. Male lambs are castrated <strong>and</strong> marked shortly before<br />

being shipped to <strong>the</strong> abattoir. Scabies (sarcoptic mange) is <strong>the</strong> commonest<br />

sheep disease (Robles <strong>and</strong> Olaechea, 2001) but its impact is limited to a few<br />

areas <strong>and</strong> so <strong>the</strong> use <strong>of</strong> veterinary products to treat it is almost unnecessary.<br />

SHEEP BREEDS AND GENETIC IMPROVEMENT<br />

There are two dominant sheep breeds: Merino <strong>and</strong> Corriedale . Each is used<br />

in production systems with different relative emphases on wool or lamb<br />

production.<br />

Fine-wool production systems<br />

Merino flocks predominate in <strong>the</strong> provinces <strong>of</strong> Neuquén, Río Negro, Chubut<br />

<strong>and</strong> nor<strong>the</strong>rn Santa Cruz, comprising almost 75 percent <strong>of</strong> all sheep in Patagonia ;<br />

<strong>the</strong>ir distribution closely matches <strong>the</strong> distribution <strong>of</strong> drier environments,<br />

where meat production is limited by nutritional constraints <strong>and</strong> farming is<br />

oriented to fine wool production (mean fibre diameter: 20.5 microns). On<br />

<strong>the</strong>se farms , wool sales can represent up to 80 percent <strong>of</strong> total farm income<br />

(Méndez Casariego, 2000). Patagonian Merinos were selected from old<br />

Argentine Merino strains, improved by <strong>the</strong> introduction <strong>of</strong> Australian Merino,<br />

mainly in <strong>the</strong> past three decades. The Argentine Merino Breeder Association<br />

(AMBA) has implemented a genetic improvement programme, including<br />

progeny testing <strong>of</strong> rams, with INTA’s technical support There are about 50<br />

Merino studs with pedigree records <strong>and</strong> several open nucleus flocks, which are<br />

inspected by AMBA (Mueller, 2001).<br />

Lamb <strong>and</strong> fine-crossbred-wool production systems<br />

Grass steppe rangel<strong>and</strong>s <strong>of</strong> sou<strong>the</strong>rn Santa Cruz <strong>and</strong> nor<strong>the</strong>rn Tierra del<br />

Fuego have higher forage production <strong>and</strong> are <strong>the</strong>refore more suitable for<br />

meat production. In this area, Corriedales introduced in <strong>the</strong> mid-twentieth<br />

century have been very successful. Local stud breeders provide superior<br />

rams to commercial farmers. A progeny testing service for top sire evaluation<br />

is being conducted under INTA-GTZ direction <strong>and</strong> funding. Many meat<br />

breeds (Texel , Southdown <strong>and</strong> Hampshire Down ) are being introduced to<br />

improve lamb traits such as growth rate , low carcass fat <strong>and</strong> improved carcass<br />

conformation (Mueller, 2001).


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 141<br />

TABLE 4.3.<br />

Vegetation shifts under grazing in Patagonia .<br />

Biozone<br />

Semideserts<br />

Shrub-grass<br />

steppes<br />

Grass- shrubs<br />

teppes<br />

Grass<br />

steppes<br />

Shrub<br />

steppes<br />

Vegetation transitions under grazing ( 1)<br />

From To<br />

Nassauvia glomerulosa (forage<br />

dwarf shrub)<br />

+ Poa dusenii (palatable grass)<br />

Mullinum spinosum (forage shrub)<br />

+ P. ligularis (palatable grass)<br />

Festuca pallescens (palatable grass)<br />

+ M. spinosum (forage shrub)<br />

N. ulicina<br />

(unpalatable dwarf shrub)<br />

Senecio sp. (unpalatable shrub)<br />

+ Stipa humilis (unpalatable grass)<br />

Senecio filaginoides (unpalatable shrub)<br />

+ M. spinosum (forage shrub)<br />

+ Stipa spp. (low palatability grasses)<br />

F. pallescens (palatable grass) F. pallescens (palatable grass)<br />

+ M. spinosum (forage shrub)<br />

+ Senecio sp. (unpalatable shrub)<br />

F. pallescens (palatable grass) Acaena sp. (low palatability dwarf<br />

shrub)<br />

F. gracillima (low palatability grass) Nassauvia sp. (unpalatable dwarf shrub)<br />

+ Stipa spp. (unpalatable grasses)<br />

Schinus sp. (palatable shrub)<br />

+ Prospidastrum sp. (palatable<br />

shrub)<br />

+ Stipa tenuis (palatable grass)<br />

Chuquiraga avellanedae (low<br />

palatability shrub)<br />

+ Stipa tenuis (palatable grass)<br />

Grindelia chiloensis (unpalatable low<br />

shrub)<br />

Chuquiraga avellanedae (low<br />

palatability shrub)<br />

Reference<br />

Bertiller, 1993a<br />

EVOLUTION OF PATAGONIAN GRASSLANDS OVER THE LAST<br />

40 YEARS<br />

Patagonian vegetation is generally described as having few adaptations to cope<br />

with grazing by domestic ungulates, since <strong>the</strong> entire region is thought to have<br />

evolved under conditions <strong>of</strong> light grazing by native ungulates (Milchunas, Sala<br />

<strong>and</strong> Lauenroth, 1988). Although this notion has recently been challenged by<br />

Lauenroth (1998), <strong>the</strong>re is general consensus that vegetation throughout most<br />

<strong>of</strong> Patagonia has been modified significantly by sheep over <strong>the</strong> last century,<br />

particularly in <strong>the</strong> last 40–50 years (Golluscio, Deregibus <strong>and</strong> Paruelo, 1998;<br />

Paruelo et al., 1993).<br />

Deterioration <strong>of</strong> grazed vegetation has usually been demonstrated by<br />

replacement <strong>of</strong> palatable grasses by unpalatable woody plants (Bertiller,<br />

1993a). The severity <strong>of</strong> plant life-form replacements varies among biozones ,<br />

depending on abiotic constraints within each ecosystem (Sala, Lauenroth<br />

<strong>and</strong> Golluscio, 1997; Perelman, León <strong>and</strong> Bussacca, 1997). The process <strong>of</strong><br />

plant species replacement has been described for most <strong>of</strong> Patagonia ’s biozones<br />

following <strong>the</strong> conceptual model <strong>of</strong> “states-<strong>and</strong>-transitions” proposed<br />

by Westoby, Walker <strong>and</strong> Noy Meir (1989) for non-equilibrium rangel<strong>and</strong><br />

ecosystems (Table 4.3). According to this model, plant communities shift<br />

between alternative steady states ra<strong>the</strong>r than progressing in a linear manner<br />

toward a predictable climax . Shifts in vegetation composition (transitions)<br />

are produced by particular combinations <strong>of</strong> biotic <strong>and</strong> abiotic stressors. In<br />

Bonvissuto et al.,<br />

1993; Fernández <strong>and</strong><br />

Paruelo, 1993<br />

Paruelo <strong>and</strong><br />

Golluscio, 1993<br />

Bertiller <strong>and</strong> Defossé,<br />

1993<br />

Bertiller <strong>and</strong> Defossé,<br />

1993<br />

Oliva <strong>and</strong> Borrelli,<br />

1993<br />

Nakamatsu et al.,<br />

1993<br />

Rostagno, 1993<br />

NOTES: (1) The order in which species appear is associated with <strong>the</strong>ir status in <strong>the</strong> plant community.<br />

SOURCE: The table is a syn<strong>the</strong>sis <strong>of</strong> state-<strong>and</strong>-transition catalogues developed for different biozones <strong>of</strong> Patagonia <strong>and</strong><br />

compiled in Paruelo et al., 1993.


142<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Patagonia, transitions in <strong>the</strong> plant community are frequently close-to-irreversible<br />

<strong>and</strong> involve not only a reduction in forage biomass for livestock<br />

but also a decrease in water-use efficiency that leads to an overall decline in<br />

ANPP (Aguiar et al., 1996). In some instances, degradation involves permanent<br />

physical changes in soils, resulting in shifts in <strong>the</strong> soil texture <strong>of</strong> superficial<br />

layers (Oliva, Bartolomei <strong>and</strong> Humano, 2000).<br />

Although alternative steady states <strong>of</strong> vegetation in Patagonia have been<br />

described with a reasonable level <strong>of</strong> detail, <strong>the</strong> factors that trigger transitions<br />

from one state to ano<strong>the</strong>r have not been tested under controlled experimental<br />

conditions (Bertiller, 1993b). Overestimation <strong>of</strong> carrying capacity , uneven<br />

distribution <strong>of</strong> sheep in large pastures <strong>and</strong> year-long continuous grazing have<br />

been suggested as possible factors responsible for vegetation degradation over<br />

<strong>the</strong> last 50 years (Golluscio, Deregibus <strong>and</strong> Paruelo, 1998).<br />

An analysis <strong>of</strong> peak sheep numbers in <strong>the</strong> province <strong>of</strong> Santa Cruz shows<br />

that pioneering sheep farmers did overestimate <strong>the</strong> carrying capacity <strong>of</strong><br />

<strong>the</strong> system. This is especially true <strong>of</strong> operations on <strong>the</strong> semi -deserts <strong>of</strong><br />

<strong>the</strong> central plateau (Unit Kg 11 in Figure 4.5), where stocking rates were<br />

consistently 60 percent above <strong>the</strong> estimated carrying capacity (Oliva et al.,<br />

1996) <strong>and</strong> <strong>the</strong> current sheep population has fallen well below <strong>the</strong> expected<br />

carrying capacity <strong>of</strong> <strong>the</strong> system (Cibils, 2001). Most <strong>of</strong> <strong>the</strong> variability in<br />

sheep numbers between 1931 <strong>and</strong> 1960 on <strong>the</strong> drier grass steppes north <strong>of</strong><br />

<strong>the</strong> Straits <strong>of</strong> Magellan can be explained by <strong>the</strong> variation in MAP (r2 = 0.97,<br />

p = 0.02; Cibils <strong>and</strong> Coughenour, 2001), a variable that has been shown to<br />

relate linearly to ANPP (Sala et al., 1988; Paruelo <strong>and</strong> Sala, 1995). After<br />

1970, this relation disappears, giving way to a second period in which<br />

sheep numbers decrease despite an apparent phase <strong>of</strong> overall increase in<br />

MAP (Cibils <strong>and</strong> Coughenour, 2001). Interestingly, 1960–1970 was <strong>the</strong><br />

driest decade in <strong>the</strong> century; <strong>the</strong>re could have been a breaking point in <strong>the</strong><br />

system sometime around or after this decade as a consequence <strong>of</strong> excessive<br />

stocking combined with prolonged droughts that caused a significant shift<br />

in <strong>the</strong> relation between rainfall (or ANPP) <strong>and</strong> sheep numbers (Cibils <strong>and</strong><br />

Coughenour, 2001).<br />

The spatial distribution <strong>of</strong> sheep grazing in very large pastures is very<br />

uneven <strong>and</strong> primarily related to <strong>the</strong> distribution <strong>of</strong> watering points (Lange,<br />

1985). Sheep densities at a given point within a pasture can vary from 8 to<br />

0.02 times <strong>the</strong> mean density assigned to <strong>the</strong> whole pasture (Lange, 1985).<br />

Although <strong>the</strong>re have been few efforts to measure grazing distribution in<br />

Patagonian-type pastures, <strong>the</strong>re is circumstantial evidence that confirms <strong>the</strong><br />

occurrence <strong>of</strong> <strong>the</strong> grazing patterns described by Lange (1985). Heterogeneous<br />

grazing distributions generate local areas <strong>of</strong> degradation that can trigger<br />

severe erosion, particularly when highly-affected areas are sensitive sites,<br />

such as riparian meadows (Borrelli <strong>and</strong> Oliva, 1999; Golluscio, Deregibus<br />

<strong>and</strong> Paruelo, 1998).


V.A. DEREGIBUS & M.F. GARBULSKY<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 143<br />

Because sheep are selective grazers, continuous year-long grazing tends to<br />

intensify <strong>the</strong> pattern <strong>of</strong> uneven utilization. Grazing systems have been tested<br />

at several sites in <strong>the</strong> grass -steppe biome as a possible means <strong>of</strong> attenuating<br />

<strong>the</strong> undesired effects <strong>of</strong> sheep selectivity. The results <strong>of</strong> <strong>the</strong>se trials, in terms<br />

<strong>of</strong> both animal production <strong>and</strong> range condition trend, were mostly comparable<br />

to <strong>the</strong> continuous moderately grazed system (Borrelli, 1999; Anchorena<br />

et al., 2000, but see also Paruelo, Golluscio <strong>and</strong> Deregibus, 1992). In most<br />

cases, <strong>the</strong> application <strong>of</strong> flexible moderate stocking rates (even in year-long<br />

grazing schemes) may be <strong>the</strong> most reasonable way to manage Patagonia ’s<br />

steppes for long-term sustainability .<br />

ONGOING RESEARCH, MANAGEMENT , RESTORATION AND<br />

BIODIVERSITY MAINTENANCE ACTIVITIES<br />

Research activities<br />

A review <strong>of</strong> abstracts <strong>of</strong> both poster <strong>and</strong> oral presentations <strong>of</strong> current research<br />

in <strong>the</strong> arid <strong>and</strong> semi -arid ecosystems <strong>and</strong> published in <strong>the</strong> proceedings <strong>of</strong> recent<br />

meetings <strong>of</strong> <strong>the</strong> Argentine Ecological Association (April 2001 meeting) <strong>and</strong><br />

<strong>the</strong> Argentine Association for Animal Science (October 2000 meeting) was<br />

undertaken to assess research trends. Approximately 30 percent <strong>of</strong> research<br />

in Patagonia is in <strong>the</strong> Monte region, close to 40 percent on <strong>the</strong> shrub <strong>and</strong><br />

shrub-grass steppes <strong>and</strong> about 20 percent on <strong>the</strong> Patagonian grass steppe.<br />

The remaining 10 percent is regional-scale, greenhouse or riparian meadow<br />

(Plate 4.6) research. A common feature <strong>of</strong> <strong>the</strong> results reviewed is <strong>the</strong> relative<br />

Plate 4.6<br />

Winter view <strong>of</strong> a riparian meadow or mallin.


144<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

scarcity <strong>of</strong> manipulation experiments; most results are derived primarily from<br />

observation-type studies. The most frequent issue is <strong>the</strong> influence <strong>of</strong> grazing<br />

by domestic herbivores on a number <strong>of</strong> vegetation <strong>and</strong> soil variables (over<br />

30 percent <strong>of</strong> studies reviewed). Next come studies on <strong>the</strong> influence <strong>of</strong> water<br />

or nitrogen on ecosystems (13 <strong>and</strong> 10 percent <strong>of</strong> reviewed studies, respectively)<br />

<strong>and</strong>, thirdly, research on <strong>the</strong> impact <strong>of</strong> fire on ecosystems (10 percent <strong>of</strong><br />

current studies). Research <strong>and</strong> surveys on wildlife account for 9 percent <strong>of</strong><br />

abstracts, <strong>and</strong> studies <strong>of</strong> ecosystem processes such as primary productivity <strong>and</strong><br />

decomposition are 9 <strong>and</strong> 5 percent <strong>of</strong> all studies, respectively. Satellite image<br />

analysis or simulation modelling are only used in about 4 percent <strong>of</strong> ongoing<br />

research activities.<br />

Grazing (mostly by sheep ) is currently being studied in relation to its effect<br />

on: vegetation structure in <strong>the</strong> shrub-dominated ecosystems <strong>of</strong> Patagonia at<br />

ei<strong>the</strong>r patch or l<strong>and</strong>scape scale (Ares, Bertiller <strong>and</strong> Bisigato, 2001b; Cecchi,<br />

Distel <strong>and</strong> Kröpfl, 2001; Ciccorossi <strong>and</strong> Sala, 2001; Ghersa et al., 2001;<br />

Ripol et al., 2001); overall community plant diversity or population genetic<br />

diversity <strong>of</strong> endangered plant species at local spatial scales (Aguiar, Premoli<br />

<strong>and</strong> Cipriotti, 2001; Cesa <strong>and</strong> Paruelo, 2001; Cibils et al., 2000); riparian<br />

meadow productivity (Collantes, St<strong>of</strong>fella <strong>and</strong> Pomar, 2001; Golluscio et al.,<br />

2000; Utrilla et al., 2000); <strong>the</strong> demography <strong>of</strong> native dominant tussock grasses<br />

(Weber et al., 2000; Oliva, Collantes <strong>and</strong> Humano, 2001); interspecific relations<br />

between shrubs (Cipriotti <strong>and</strong> Aguiar, 2001); shrub crown shapes (Siffredi<br />

<strong>and</strong> Bustos, 2001); soil nitrogen mineralization rates in relation to changes<br />

in vegetation composition (Anchorena et al., 2001); shrub recruitment in<br />

relation to soil compaction (St<strong>of</strong>ella <strong>and</strong> Anchorena, 2001); <strong>and</strong> microphytic<br />

crusts in <strong>the</strong> Monte shrub steppes (Silva et al., 2001). Finally, grazing is also<br />

currently being researched in relation to herbivore diets <strong>and</strong> lambing rates at<br />

regional scales (Hall <strong>and</strong> Paruelo, 2001; Pelliza et al., 2001). Water is <strong>the</strong> single<br />

most important factor regulating processes such as primary <strong>and</strong> secondary<br />

productivity in Patagonian ecosystems. Nitrogen dynamics is closely tied<br />

to moisture availability. Although <strong>the</strong>re has been much research in <strong>the</strong> past<br />

decades addressing <strong>the</strong> use <strong>of</strong> water by different life forms (Sala, Lauenroth <strong>and</strong><br />

Golluscio, 1997, <strong>and</strong> references <strong>the</strong>rein), only recently have studies begun to<br />

address issues related to <strong>the</strong> joint effects <strong>of</strong> water <strong>and</strong> nitrogen. One <strong>of</strong> <strong>the</strong> few<br />

ongoing manipulative field experiments is being conducted in this area, studying<br />

<strong>the</strong> effects <strong>of</strong> drought on productivity <strong>and</strong> N mineralization, using rain shelters<br />

in <strong>the</strong> shrub steppe ecosystem (Sala, Yahdjian <strong>and</strong> Flombaum, 2001). Current<br />

studies on <strong>the</strong> influence <strong>of</strong> water (alone) include: effects <strong>of</strong> water deficit on <strong>the</strong><br />

germination <strong>of</strong> an endangered grass species (Flombaum et al., 2001); simulation<br />

<strong>of</strong> competition for water <strong>and</strong> light in Festuca tussocks growing in a grass-forest<br />

ecotone (Fernández, Gyengue <strong>and</strong> Schlichter, 2001); effects <strong>of</strong> stem flow on soil<br />

water content beneath shrubs (Kröpfl et al., 2001); <strong>and</strong> Poa ligularis response to<br />

defoliation <strong>and</strong> water stress in a greenhouse experiment (Sáenz <strong>and</strong> Deregibus,


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 145<br />

2001). Currently, nitrogen dynamics are being studied in relation to: <strong>the</strong> effect<br />

<strong>of</strong> litter nitrogen content <strong>of</strong> different plant life forms on soil N fractions in<br />

<strong>the</strong> grass-steppe ecosystems (Sain, Bertiller <strong>and</strong> Carrera, 2001) <strong>and</strong> <strong>the</strong> Monte<br />

shrub steppes (Carrera et al., 2001); effects <strong>of</strong> levels <strong>of</strong> soil nitrogen fractions<br />

on <strong>the</strong> segregation <strong>of</strong> male <strong>and</strong> female Poa ligularis individuals (Bertiller, Sain<br />

<strong>and</strong> Carrera, 2001); soil nitrogen mineralization rates in relation to grazing<br />

(Anchorena et al., 2001); decomposition rates <strong>of</strong> litter with different nitrogen<br />

content (Semmartin et al., 2001); <strong>and</strong> nitrogen use efficiency (toge<strong>the</strong>r with<br />

water use efficiency) <strong>of</strong> 26 species <strong>of</strong> plants from Patagonian ecosystems<br />

(Golluscio, Oesterheld <strong>and</strong> Soriano, 2001).<br />

Current studies on <strong>the</strong> effects <strong>of</strong> fire on Patagonian ecosystems mostly<br />

include monitoring <strong>of</strong> vegetation following natural wildfire outbreaks. Such<br />

studies include: descriptions <strong>of</strong> post-burn secondary succession patterns<br />

(Gherm<strong>and</strong>i, Guthmann <strong>and</strong> Bran, 2001; González et al., 2001; Rafaelle <strong>and</strong><br />

Veblen, 2001); study <strong>of</strong> biotic <strong>and</strong> abiotic (including wea<strong>the</strong>r) conditions that<br />

promote wildfire outbreaks (Defossé et al., 2001; De Torres Curth, Gherm<strong>and</strong>i<br />

<strong>and</strong> Pfister, 2001); <strong>and</strong> effects <strong>of</strong> wildfires on survival <strong>of</strong> adult tussocks or seeds<br />

in soil seed-banks (Gittins, Bran <strong>and</strong> Gherm<strong>and</strong>i, 2001; González, Gherm<strong>and</strong>i<br />

<strong>and</strong> Becker, 2001). Almost all fire-related studies have been conducted ei<strong>the</strong>r in<br />

<strong>the</strong> shrub-steppe ecosystems or <strong>the</strong> steppe-forest ecotones .<br />

Current studies on wildlife in Patagonia include: surveys <strong>of</strong> animal numbers<br />

such as guanaco population numbers in relation to sheep density <strong>and</strong> forage<br />

availability (Baldi, Albon <strong>and</strong> Elston, 2001); calculations <strong>of</strong> Rhea densities<br />

using improved field methods (Funes et al., 2001); census <strong>of</strong> migratory bird<br />

species in sou<strong>the</strong>rn Patagonia (Manero et al., 2001); predator -prey relations<br />

studying fox <strong>and</strong> European hare populations <strong>and</strong> diets <strong>of</strong> a number <strong>of</strong> predators<br />

<strong>of</strong> <strong>the</strong> shrub steppe ecosystems (Donadío et al., 2001; Novaro et al., 2001);<br />

habitat use by Rheas (Bellis et al., 2001); <strong>and</strong> deer reproductive ecology in relation<br />

to droughts (Flueck, 2001).<br />

ANPP <strong>of</strong> Patagonian ecosystems is currently being studied in relation to<br />

range condition (Bonvissuto, González Carteau <strong>and</strong> Moraga, 2001), grazing<br />

system (Collantes, St<strong>of</strong>fella <strong>and</strong> Pomar, 2001), competition among plant lifeforms<br />

(Schlichter, Fernández <strong>and</strong> Gyenge, 2001), or forage production (Bustos<br />

<strong>and</strong> Marcolín, 2001). Satellite image analysis using NDVI at regional scales<br />

continues to be used as a tool to estimate ANPP (Fabricante et al., 2001).<br />

Decomposition is being studied at regional scales ei<strong>the</strong>r along rainfall gradients<br />

(Austin <strong>and</strong> Sala, 2001), or in relation to a species’ successional status within<br />

<strong>the</strong> plant community <strong>and</strong> its litter N content (Semmartin et al., 2001). At local<br />

scales, decomposition <strong>of</strong> forbs is being studied in relation to increased ultraviolet-B<br />

radiation, derived from <strong>the</strong> thinning in <strong>the</strong> ozone layer at high latitudes in<br />

<strong>the</strong> sou<strong>the</strong>rn hemisphere (Pancotto et al., 2001).<br />

A number <strong>of</strong> ongoing research projects include <strong>the</strong> study <strong>of</strong> aspects <strong>of</strong><br />

<strong>the</strong> biology <strong>of</strong> a few shrub species, namely: shrub secondary compounds


146<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

(Cavagnaro et al., 2001; Wassner <strong>and</strong> Ravetta, 2001); within-genus shrub<br />

genetic diversity (Bottini et al., 2001); <strong>the</strong> effects <strong>of</strong> pruning or cloning treatments<br />

(Arena, Peri <strong>and</strong> Vater, 2001; Peri, Arena <strong>and</strong> Vater, 2001); segregation<br />

<strong>of</strong> shrub species in relation to rainfall gradients (Marcolin <strong>and</strong> Bustos, 2001);<br />

allocation patterns or morphological attributes in sympatric shrub species<br />

(Stronatti et al., 2001; Vilela, Agüero <strong>and</strong> Ravetta, 2001); <strong>and</strong> factors influencing<br />

insect herbivory in shrubs (D’Ambrogio <strong>and</strong> Fernández, 2001; Villacide<br />

<strong>and</strong> Farina, 2001).<br />

A few researchers are studying seed biology or germination dynamics in<br />

relation to presence <strong>of</strong> microphytic crusts (Villasuso et al., 2001), litter accumulation<br />

(Rotundo <strong>and</strong> Aguiar, 2001), plant life-form (Vargas <strong>and</strong> Bertiller,<br />

2001), or grazing (Oliva, Collantes <strong>and</strong> Humano, 2001). Finally, <strong>the</strong>re are a<br />

small number <strong>of</strong> studies addressing miscellaneous issues ranging from secondary<br />

succession patterns on cultivated rangel<strong>and</strong>s to endophyte fungi in a series<br />

<strong>of</strong> grasses from Patagonia (Cibils, Peinetti <strong>and</strong> Oliva, 2001; Vila Aiub et al.,<br />

2001).<br />

Management activities<br />

The need for management tools to regulate grazing <strong>and</strong> slow down rates<br />

<strong>of</strong> vegetation deterioration has led to <strong>the</strong> development <strong>of</strong> a number <strong>of</strong><br />

vegetation-based pasture assessment routines over <strong>the</strong> past decade. Most <strong>of</strong><br />

<strong>the</strong>se (developed primarily by INTA) are being used in almost all provinces <strong>of</strong><br />

Argentinian Patagonia , ei<strong>the</strong>r by government agencies or private consultants<br />

(Borrelli <strong>and</strong> Oliva, 1999; Nakamatsu, Escobar <strong>and</strong> Elissalde, 2001; Bonvissuto,<br />

2001; Siffredi et al., 2002).<br />

The rangel<strong>and</strong> assessment methods used in <strong>the</strong> provinces <strong>of</strong> Río Negro<br />

<strong>and</strong> Chubut (generally areas <strong>of</strong> shrub-steppe vegetation ) basically involve: <strong>the</strong><br />

measurement <strong>of</strong> vegetation cover (forage species cover, in particular); <strong>and</strong> estimation<br />

<strong>of</strong> ANPP using annual precipitation data (see appendix in Golluscio,<br />

Deregibus <strong>and</strong> Paruelo, 1998). The routine used in Santa Cruz (generally<br />

applied to grass -steppes <strong>and</strong> semi -deserts ) involves: <strong>the</strong> measurement <strong>of</strong> forage<br />

biomass (short-grasses, sedges <strong>and</strong> forbs); <strong>and</strong> grass key species stubble<br />

heights (Borrelli <strong>and</strong> Oliva, 1999). The output <strong>of</strong> all methods is an estimate <strong>of</strong><br />

sheep carrying capacity . Whereas <strong>the</strong> biomass-based method involves yearly<br />

monitoring , <strong>the</strong> vegetation-cover-based methods do not. In all cases, however,<br />

assessment routines are fairly labour-intensive <strong>and</strong> <strong>the</strong>refore, in some instances,<br />

<strong>the</strong>ir use becomes economically unviable. A number <strong>of</strong> efforts aim at reducing<br />

labour costs by using up-to-date technological tools to facilitate a more widespread<br />

adoption <strong>of</strong> range assessment routines.<br />

Scientists at <strong>the</strong> Universidad de Buenos Aires (IFEVA-UBA) are using<br />

L<strong>and</strong>sat TM image analysis to derive primary productivity estimates from<br />

NDVI values to calculate carrying capacity at individual pasture scales (Paruelo<br />

et al., 2001). Ano<strong>the</strong>r approach that is currently being investigated by INTA


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 147<br />

scientists is <strong>the</strong> use <strong>of</strong> ei<strong>the</strong>r empirical or mechanistic simulation models to predict<br />

year-to-year fluctuations in forage availability <strong>and</strong> adjust animal numbers<br />

accordingly. The empirical approach involves <strong>the</strong> use <strong>of</strong> seasonal rainfall data<br />

to make stocking rate adjustment decisions following within-year patterns <strong>of</strong><br />

drought or moisture surpluses (Rimoldi <strong>and</strong> Buono, 2001). The mechanistic<br />

approach includes <strong>the</strong> parameterization <strong>of</strong> existing mechanistic spatiallyexplicit<br />

models that allow l<strong>and</strong>scape -scale simulation <strong>of</strong> primary productivity<br />

<strong>and</strong> grazing at a number <strong>of</strong> different time scales <strong>of</strong> interest. This approach<br />

involves <strong>the</strong> use <strong>of</strong> satellite image analysis to calibrate productivity estimates<br />

(Ellis <strong>and</strong> Coughenour, 1996).<br />

In recent years <strong>the</strong>re has been increasing dem<strong>and</strong> for long-term range<br />

monitoring tools at scales ranging from individual pastures to l<strong>and</strong>scapes <strong>and</strong><br />

ecosystems . Current range assessment routines cannot (in most cases) provide<br />

useful long-term monitoring information. Fur<strong>the</strong>rmore, l<strong>and</strong> uses o<strong>the</strong>r than<br />

grazing , such as oil extraction or o<strong>the</strong>r mining, require <strong>the</strong> development <strong>of</strong><br />

tools tailored to <strong>the</strong> type <strong>of</strong> environmental disturbance <strong>the</strong>y produce. L<strong>and</strong>sat<br />

TM satellite image analysis has been used over <strong>the</strong> last decade to make an<br />

inventory <strong>of</strong> <strong>the</strong> state <strong>of</strong> Patagonian rangel<strong>and</strong>s (degrees <strong>of</strong> desertification)<br />

in several key areas <strong>of</strong> <strong>the</strong> region (del Valle et al., 1995). As <strong>the</strong> availability <strong>of</strong><br />

satellite images increases, much <strong>of</strong> <strong>the</strong> installed capabilities in research institutes<br />

throughout <strong>the</strong> region will be used as a basis for multi-temporal monitoring<br />

<strong>of</strong> rangel<strong>and</strong>s at regional scales. At smaller spatial scales, Ares et al. (2001a,b)<br />

are developing methods <strong>of</strong> monitoring changes in vegetation structure under<br />

grazing at l<strong>and</strong>scape scales in <strong>the</strong> Monte shrub steppes using aerial photographs<br />

<strong>and</strong> spatially-explicit simulation modelling .<br />

RESTORATION ACTIVITIES<br />

Restoration activities have traditionally been restricted to <strong>the</strong> stabilization <strong>of</strong><br />

s<strong>and</strong> accumulations in severely eroded areas, using special cultivation techniques<br />

<strong>and</strong> generally involving <strong>the</strong> seeding <strong>of</strong> rhizomatous grasses <strong>of</strong> <strong>the</strong> genus Elymus<br />

(Castro, Salomone <strong>and</strong> Reichart, 1983). Almost all <strong>of</strong> <strong>the</strong>se activities have been<br />

conducted successfully, by both INTA <strong>and</strong> <strong>the</strong> Board <strong>of</strong> Agriculture (Consejo<br />

Argario Provincial) <strong>of</strong> <strong>the</strong> Province <strong>of</strong> Santa Cruz. Although this <strong>and</strong> o<strong>the</strong>r<br />

variants <strong>of</strong> grazing -related restoration activities continue (Magaldi et al., 2001;<br />

Becker, Bustos <strong>and</strong> Marcolín, 2001; Rostagno, 2001), current efforts in this field<br />

have mostly shifted toward <strong>the</strong> reclamation <strong>of</strong> disturbances associated with <strong>the</strong><br />

mining <strong>and</strong> oil industries (Baetti et al., 2001; Ciano et al., 2001).<br />

Currently, restoration activities involve: <strong>the</strong> developing or adaptation <strong>of</strong><br />

technologies to promote in situ biodegradation <strong>of</strong> oil (especially in situations<br />

where oil spills affect valuable riparian meadow habitats) (Luque et al., 2000;<br />

Nakamatsu et al., 2001b); conducting conservationist tillage in areas <strong>of</strong> topsoil<br />

decapitation (Ciano et al., 2000); <strong>and</strong> selection <strong>of</strong> native ruderal species for<br />

revegetation <strong>of</strong> highly degraded environments (Ciano et al., 1998). Shrubs <strong>of</strong>


148<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>the</strong> genera Atriplex , Grindelia <strong>and</strong> Tamarix are being used in many current<br />

restoration projects, with establishment rates <strong>of</strong> almost 70 percent (Ciano et<br />

al., 2001).<br />

Most l<strong>and</strong> reclamation activities are currently in a region with some <strong>of</strong> <strong>the</strong><br />

oldest oil fields <strong>of</strong> sou<strong>the</strong>rn Patagonia (nor<strong>the</strong>rn Santa Cruz <strong>and</strong> sou<strong>the</strong>rn<br />

Chubut), <strong>and</strong> lie mostly within <strong>the</strong> shrub-grass steppes <strong>and</strong> semi -desert biozones<br />

. Recently, <strong>the</strong>re has been a rapid growth in <strong>the</strong> dem<strong>and</strong> for fur<strong>the</strong>r l<strong>and</strong><br />

reclamation technology by a number <strong>of</strong> large mining projects in <strong>the</strong> sou<strong>the</strong>rn<br />

semi-desert biozone (Province <strong>of</strong> Santa Cruz), a need that is currently being<br />

met by local Universities. Mine reclamation will possibly be one <strong>of</strong> <strong>the</strong> fastest<br />

growing applications <strong>of</strong> restoration in certain areas <strong>of</strong> Patagonia during <strong>the</strong><br />

decades to come.<br />

BIODIVERSITY MAINTENANCE<br />

There are 1 378 recorded vascular plant species in arid <strong>and</strong> semi -arid Patagonia<br />

(Correa, 1971), almost all <strong>of</strong> which are angiosperms <strong>and</strong> close to 30 percent <strong>of</strong><br />

which are endemic species. Of all species recorded in <strong>the</strong> Flora <strong>of</strong> Patagonia,<br />

<strong>the</strong>re are about 340 exotic plants that are restricted to areas surrounding<br />

houses, pens <strong>and</strong> roads, but <strong>the</strong>y are, in all cases, unable to become part <strong>of</strong> <strong>the</strong><br />

native steppe plant communities (Soriano, Nogués Loza <strong>and</strong> Burkart, 1995).<br />

Due to its relatively high level <strong>of</strong> endemism, Patagonia has been recently<br />

included as a “Centre <strong>of</strong> Plant Diversity ” (CPD Site A46) in a worldwide<br />

diversity conservation project under <strong>the</strong> auspices <strong>of</strong> <strong>the</strong> Museum <strong>of</strong> Natural<br />

History <strong>of</strong> <strong>the</strong> Smithsonian Institution (USA ), IUCN <strong>and</strong> WWF (Smithsonian<br />

Institution, 1997).<br />

Sheep grazing has been shown to reduce vascular plant diversity in several<br />

Patagonian ecosystems , both by promoting local extinction <strong>of</strong> preferred forage<br />

plants <strong>and</strong> by altering <strong>the</strong> relative abundance <strong>of</strong> species in <strong>the</strong> grazed plant<br />

communities (Schlichter et al., 1978; Perelman, León <strong>and</strong> Bussacca, 1997; Oliva<br />

et al., 1998; Cibils et al., 2000; Cesa <strong>and</strong> Paruelo, 2001). Soriano, Nogués Loza<br />

<strong>and</strong> Burkart (1995) assembled a list <strong>of</strong> 76 endangered species in Patagonia ,<br />

<strong>of</strong> which a quarter are grasses, on <strong>the</strong> basis <strong>of</strong> <strong>the</strong> plant species replacement<br />

patterns under grazing described by several authors in Paruelo et al. (1993).<br />

Although <strong>the</strong> severity <strong>of</strong> extinction risk is not equal for all species listed by<br />

Soriano, Nogués Loza <strong>and</strong> Burkart (1995), this list would clearly be a good<br />

starting point to guide conservation efforts. Current efforts to prevent overgrazing<br />

may contribute to slowing down <strong>the</strong> rate <strong>of</strong> loss <strong>of</strong> endemic species,<br />

although <strong>the</strong>se programmes do not address <strong>the</strong> biodiversity issue explicitly.<br />

Unfortunately <strong>the</strong>re are few nature reserves in arid <strong>and</strong> semi -arid Patagonia,<br />

although many <strong>of</strong> <strong>the</strong> National Parks along <strong>the</strong> Patagonian Andes include<br />

areas <strong>of</strong> steppe-forest ecotone (Villamil, 1997). There are currently only two<br />

reserves well within arid <strong>and</strong> semi-arid Patagonia, which account for less than<br />

0.1 percent <strong>of</strong> <strong>the</strong> region, namely Laguna Blanca National Park (about 110 km 2


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 149<br />

in <strong>the</strong> province <strong>of</strong> Neuquen, created in 1940), <strong>and</strong> Bosques Petrificados Natural<br />

Monument (100 km 2 in <strong>the</strong> province <strong>of</strong> Santa Cruz) (Villamil, 1997).<br />

Seed production<br />

Although experimental sowing <strong>of</strong> native species has been successful in sou<strong>the</strong>rn<br />

Patagonia , forage productivity <strong>of</strong> native plant species under cultivation was<br />

lower than that <strong>of</strong> introduced grasses <strong>and</strong> legumes (Mascó, 1995). Reseeding<br />

trials on degraded l<strong>and</strong> were conducted in <strong>the</strong> sixties by an INTA-FAO<br />

Project (Molina Sanchez, 1968). Reseeding was biologically successful at many<br />

sites, but productivity under low moisture regimes was considered limiting<br />

for commercial application (Mascó <strong>and</strong> Montes, 1995), mostly because sheep<br />

production was <strong>the</strong> only activity considered in <strong>the</strong> economic analyses.<br />

These results constrained local seed production to limited areas, namely:<br />

harvesting small st<strong>and</strong>s <strong>of</strong> Elymus sabulosus <strong>and</strong> E. arenarius in western Santa<br />

Cruz <strong>and</strong> south-central Chubut to obtain seed for s<strong>and</strong> dune fixation; setting<br />

up two active gene banks in <strong>the</strong> region, which not only stored seed collections<br />

from natural st<strong>and</strong>s, but also multiplied some material in experimental plots<br />

(Montes et al., 1996); <strong>and</strong> developing oil spill reclamation technology by scientists<br />

at INTA’s Research Station in Trelew (Chubut), which included <strong>the</strong> setting<br />

up <strong>of</strong> a nursery to multiply native shrub germplasm such as Atriplex lampa to<br />

provide plantations at disturbed sites. There is currently no public or private<br />

funding for seed production <strong>of</strong> native species nor for rehabilitation <strong>of</strong> desertified<br />

areas with native plant species.<br />

RECOMMENDATIONS AND LESSONS LEARNED<br />

Most <strong>of</strong> <strong>the</strong> grazing management <strong>and</strong> ecology research in Patagonia has been<br />

conducted by INTA <strong>and</strong> institutions such as CONICET <strong>and</strong> <strong>the</strong> University <strong>of</strong><br />

Buenos Aires. Beginning in <strong>the</strong> 1980s, pasture condition guides were proposed<br />

for evaluating different vegetation types . Initially, grazing treatments were recommended<br />

based on range management literature. The lack <strong>of</strong> underst<strong>and</strong>ing<br />

<strong>of</strong> soil-plant-animal relations thwarted fur<strong>the</strong>r progress. Soil <strong>and</strong> vegetation<br />

responses to different grazing treatments were unknown. The nutritional <strong>and</strong><br />

behavioural aspects <strong>of</strong> <strong>the</strong> grazing process were ignored. Realizing this, two longterm<br />

grazing trials were designed <strong>and</strong> conducted by INTA, one in SW Chubut<br />

(Siffredi et al., 1995) <strong>and</strong> one in sou<strong>the</strong>rn Santa Cruz (Oliva et al., 1998).<br />

Many rangel<strong>and</strong> evaluation techniques <strong>and</strong> recommended grazing strategies<br />

were <strong>the</strong>reafter based on <strong>the</strong> findings <strong>of</strong> INTA grazing trials. Short-grass biomass<br />

<strong>and</strong> key species height were used to assess carrying capacity <strong>and</strong> grazing<br />

intensity, respectively, in grass-dominated rangel<strong>and</strong>s <strong>of</strong> Sou<strong>the</strong>rn Patagonia<br />

(Borrelli <strong>and</strong> Oliva, 1999; Cibils, 1993). Pastoral Value (Daget <strong>and</strong> Poisonnet,<br />

1971), a method based on step-point cover data, was proposed for shrubl<strong>and</strong><br />

steppes in nor<strong>the</strong>rn Patagonia (Elizalde, Escobar <strong>and</strong> Nakamatsu, 1991; Ayesa<br />

<strong>and</strong> Becker, 1991)


150<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

In 1989, INTA <strong>and</strong> GTZ launched a joint project to control <strong>and</strong> prevent<br />

desertification in Patagonia , which was implemented during <strong>the</strong> 1990s. This<br />

project increased societal awareness regarding desertification problems, <strong>and</strong><br />

3 percent <strong>of</strong> all sheep farmers in <strong>the</strong> region adopted <strong>the</strong> techniques recommended.<br />

Since <strong>the</strong> early 1990s, interaction between farmers <strong>and</strong> range scientists<br />

has increased <strong>and</strong> has resulted in <strong>the</strong> application <strong>of</strong> grazing plans at an individual<br />

farm scale. This was possibly <strong>the</strong> birth <strong>of</strong> range management as a practical discipline<br />

in Patagonia. After more than two decades <strong>of</strong> research activities <strong>and</strong> one<br />

decade <strong>of</strong> practical experience, we have both recommendations <strong>and</strong> many new<br />

questions.<br />

Adaptive management – <strong>the</strong> Santa Cruz example<br />

The designing <strong>of</strong> a grazing plan with little research background <strong>and</strong> a lot<br />

<strong>of</strong> variation coming from wea<strong>the</strong>r, soils, vegetation <strong>and</strong> previous grazing<br />

management is highly problematic. Stuart-Hill (1989), working in South<br />

Africa , stated that it is almost impossible to define “proper” management in a<br />

one-step plan. He proposed adaptive management as <strong>the</strong> only way to deal with<br />

urgent decisions <strong>and</strong> limited knowledge rangel<strong>and</strong>s. Our experience confirms<br />

his hypo<strong>the</strong>sis: proper management is a process ra<strong>the</strong>r than a single decision.<br />

In Santa Cruz, for instance, many farms began to apply adaptive<br />

management in <strong>the</strong> 1990s (Borrelli <strong>and</strong> Oliva, 1999) (Figure 4.6). Range<br />

evaluation methods were used to support stocking rate adjustments <strong>and</strong><br />

o<strong>the</strong>r grazing allocation decisions. Annual monitoring <strong>of</strong> wea<strong>the</strong>r, vegetation<br />

<strong>and</strong> animal production variables at <strong>the</strong> level <strong>of</strong> individual paddocks provided<br />

feedback information that allowed <strong>the</strong> implementation <strong>of</strong> opportunistic<br />

grazing plans <strong>and</strong> corrections for possible errors in <strong>the</strong> initial stocking<br />

proposal. Farmer objectives <strong>and</strong> perceptions were very important in <strong>the</strong><br />

planning process. Opportunistic grazing plans in sou<strong>the</strong>rn Santa Cruz<br />

proved to be effective in terms <strong>of</strong> optimizing sheep production. Variable<br />

stocking rates were used to take advantage <strong>of</strong> favourable years <strong>and</strong> also to<br />

reduce <strong>the</strong> impact <strong>of</strong> periodic droughts , although it is not clear whe<strong>the</strong>r<br />

variable stocking rates were more beneficial to vegetation than moderate<br />

fixed stocking rates. Unfortunately, <strong>the</strong> vegetation attributes used as criteria<br />

for stocking rate adjustments (short-grass biomass <strong>and</strong> key species height)<br />

were inadequate for long-term monitoring.<br />

The information collected on many sheep farms in sou<strong>the</strong>rn Patagonia was<br />

used by INTA Santa Cruz to create a regional database. This proved to be a<br />

useful <strong>and</strong> simple tool to analyse <strong>the</strong> internal variation <strong>of</strong> carrying capacity<br />

estimations within each natural environment <strong>and</strong> grazing site. Many inferences<br />

made from small paddock grazing studies were confirmed at <strong>the</strong> commercial<br />

scale. This information on animal <strong>and</strong> vegetation responses to grazing<br />

management was important to calibrate stocking rate recommendations<br />

across range types in Santa Cruz (K<strong>of</strong>alt <strong>and</strong> Borrelli, unpublished data).


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 151<br />

Current knowledge<br />

• Research<br />

• GIS<br />

technology<br />

• Grazing<br />

management<br />

Database<br />

• Modelling<br />

Evaluation <strong>and</strong><br />

diagnosis<br />

• Soil <strong>and</strong><br />

vegetation<br />

• Animal<br />

production<br />

• Economic<br />

traits<br />

Monitoring<br />

• Soil <strong>and</strong><br />

vegetation<br />

• Animal<br />

production<br />

• Economic<br />

traits<br />

Farmer<br />

objectives<br />

Externalities<br />

Climate,<br />

Market<br />

Policies<br />

Planning<br />

• Grazing<br />

management<br />

• Flock structure<br />

• Pre- lambing<br />

shearing<br />

• Reproductive,<br />

genetic <strong>and</strong> sanitary<br />

management<br />

• Predator control<br />

• Fence <strong>and</strong> water<br />

facilities<br />

Application<br />

• Management<br />

changes<br />

Figure 4.6<br />

Adaptive management for sustainable sheep production.<br />

(Based on Borrelli <strong>and</strong> Oliva, 1999)<br />

Environmental,<br />

financial <strong>and</strong><br />

social constraints<br />

The value <strong>of</strong> simple or flexible stocking strategies<br />

Grazing management practices in Patagonia can be classified in terms <strong>of</strong> complexity<br />

(Table 4.4). The shift from a subjective, low-knowledge-level input,<br />

continuous stocking scheme (level 0), to an objectively-based, moderate <strong>and</strong><br />

flexible continuous stocking strategy (level 1) promotes <strong>the</strong> greatest progress<br />

in grazing management (Borrelli <strong>and</strong> Oliva, 1999). Fur<strong>the</strong>r increases in management<br />

complexity or sophistication can be expected to have less impact,<br />

at least in <strong>the</strong> drier <strong>and</strong> homogeneous environments <strong>of</strong> Patagonia. Level 1<br />

recommended procedures have proved highly efficient in eliminating general-


152<br />

TABLE 4.4<br />

Complexity levels <strong>of</strong> grazing management in Patagonia .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Level Description Limitations Application<br />

0 Traditional management<br />

Continuous grazing with subjectively estimated,<br />

fixed stocking rates<br />

1 Continuous flexible stocking<br />

Range evaluation provides objective information<br />

for animal allocation . Range monitoring allows for<br />

yearly adjustments, to deal with climatic variation.<br />

Opportunistic rest <strong>of</strong> paddocks in rainy years<br />

Fencing <strong>of</strong> meadows <strong>and</strong> separate management<br />

2 Deferred rotation systems<br />

Schematic rotation with low animal concentration<br />

(less than 50% <strong>of</strong> <strong>the</strong> farm is rested at any time)<br />

3 Specialized grazing systems<br />

Schematic rotation with high animal concentration.<br />

(High intensity-low frequency, low intensity-low<br />

frequency <strong>and</strong> short duration grazing )<br />

SOURCE: Golluscio et al., 1999, who adapted from a 1993 unpublished report.<br />

Overgrazing in 50% <strong>of</strong> cases.<br />

L<strong>and</strong> degradation. Low<br />

lambing rates, with high<br />

mortality.<br />

Moderate continuous grazing<br />

could promote undesirable<br />

transitions in some<br />

environments.<br />

Deferred rotation did not<br />

produce <strong>the</strong> results expected.<br />

Moderate managerial skills<br />

are required.<br />

High requirement for fencing<br />

<strong>and</strong> managerial skills.<br />

Limited information about<br />

<strong>the</strong> benefits <strong>of</strong> <strong>the</strong> practice.<br />

97% <strong>of</strong> <strong>the</strong> farms<br />

<strong>of</strong> Argentinian<br />

Patagonia<br />

2 grazing studies <strong>and</strong><br />

more than 200 farms<br />

with grazing plans<br />

2 grazing studies<br />

5 farms<br />

3 farms<br />

ized continuous overgrazing (Borrelli <strong>and</strong> Oliva, 1999), identified as <strong>the</strong> most<br />

important cause <strong>of</strong> range degradation elsewhere (Heady <strong>and</strong> Child, 1994).<br />

Simple Level-2 rotational grazing systems (Table 4.4) were tested in sou<strong>the</strong>rn<br />

Patagonia , but <strong>the</strong> advantage <strong>of</strong> changing from Level 1 was not evident<br />

(Borrelli, 1999). Only opportunistic rest <strong>of</strong> some paddocks <strong>and</strong> fencing <strong>of</strong><br />

meadows proved to be worthwhile “sophistication” in grazing management .<br />

Intensive grazing <strong>of</strong> fenced meadows showed impressive results in terms <strong>of</strong><br />

sheep production in NW Patagonia (Giraudo et al., 1996).<br />

More specialized grazing systems (Level 3-type ) are regarded as promising<br />

by researchers <strong>of</strong> <strong>the</strong> University <strong>of</strong> Buenos Aires on a large farm in NW<br />

Chubut, Argentina (Paruelo, Golluscio <strong>and</strong> Deregibus, 1992). The generalized<br />

adoption <strong>of</strong> <strong>the</strong>se systems is limited by: scarce information regarding responses<br />

in o<strong>the</strong>r environments; <strong>the</strong> limited availability <strong>of</strong> paddocks for complex<br />

rotations; <strong>and</strong> <strong>the</strong> lack <strong>of</strong> managerial skills <strong>of</strong> most farmers. In <strong>the</strong> last decades<br />

<strong>the</strong>re has been a debate in <strong>the</strong> range management literature about grazing<br />

systems (Kothmann, 1984) <strong>and</strong> <strong>the</strong> value <strong>of</strong> <strong>the</strong> optimal stocking rate concept<br />

(e.g. Ash <strong>and</strong> Stafford-Smith, 1996; Stafford-Smith, 1996). As an example,<br />

continuous moderate grazing has been shown as beneficial for combating<br />

undesirable shrub invasions (Westoby, Walker <strong>and</strong> Noy Meir, 1989). Many<br />

authors have considered that defoliation frequency was more important than<br />

defoliation intensity for proper grazing management , <strong>and</strong> proposed specialized<br />

grazing systems (Kothmann, 1984). Stafford-Smith (1996) pointed out that<br />

both temporal <strong>and</strong> spatial heterogeneity limit <strong>the</strong> possibility <strong>of</strong> controlling<br />

grazing intensity in continuous grazing treatments. However, for Patagonian


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 153<br />

conditions, <strong>the</strong>se debates are stimulating but somewhat <strong>the</strong>oretical. Simple <strong>and</strong><br />

flexible grazing strategies proved to be useful to optimize sheep production<br />

<strong>and</strong> to prevent rangel<strong>and</strong> deterioration for most situations. Severe restrictions<br />

limit <strong>the</strong> practical application <strong>of</strong> more complex grazing strategies.<br />

Conflict between short- <strong>and</strong> long-term production<br />

Many economic activities exhibit conflicts between short-term <strong>and</strong> long-term<br />

pr<strong>of</strong>itability when environmental impact is considered. Maximum short-term<br />

pr<strong>of</strong>its are attained by methods that may be harmful to natural resources , especially<br />

if hidden environmental costs are, as usual, not included in economic<br />

calculations. In this case, less pr<strong>of</strong>itable procedures in <strong>the</strong> short-term might be<br />

chosen for environmental protection, or environmental costs should be included<br />

in <strong>the</strong> economic analysis.<br />

This seems not to be <strong>the</strong> case for Patagonian sheep farming systems . While<br />

overgrazed farms are likely to produce not only more but also finer wool,<br />

nutritional restrictions will decrease lambing rates <strong>and</strong> survival <strong>of</strong> adult sheep,<br />

promoting decreases in overall meat sales. If overgrazing occurs in <strong>the</strong> most arid<br />

biomes , reproduction <strong>and</strong> survival is depressed beyond <strong>the</strong> equilibrium point<br />

<strong>of</strong> <strong>the</strong> flock <strong>and</strong> sheep population numbers decline (Golluscio et al., 1999).<br />

A properly managed sheep farm sells 24 to 44 percent <strong>of</strong> <strong>the</strong> herd annually<br />

(depending on <strong>the</strong> natural environment), whereas sales from overgrazed farms<br />

range from zero to 15 percent (Borrelli et al., 1997). Consequently, sound management<br />

pays <strong>of</strong>f in <strong>the</strong> short term, even using conventional economic analysis.<br />

This becomes more evident for mixed lamb <strong>and</strong> fine-crossbred-wool production<br />

systems , but is also valid for fine-wool production systems.<br />

The role <strong>of</strong> Decision Support Systems<br />

The availability <strong>of</strong> computers broadens <strong>the</strong> possibilities for environmental<br />

assessment <strong>and</strong> management by range technicians. The joint INTA-GTZ<br />

project, mentioned above, introduced satellite imagery processing facilities <strong>and</strong><br />

skills in Patagonia . The use <strong>of</strong> L<strong>and</strong>sat TM images was adopted as a cost- <strong>and</strong><br />

time-efficient service to help make accurate inventories for rangel<strong>and</strong> surveys.<br />

In some areas, carrying capacity could be estimated directly from L<strong>and</strong>sat<br />

TM Images (Oliva et al., 1996). In o<strong>the</strong>rs, image processing provided accurate<br />

range site maps <strong>and</strong> useful information to guide field sampling. Geographical<br />

Information System (GIS ) technology was used in 1994 to combine satellite<br />

information with o<strong>the</strong>r data sources, such as soil maps, climatic data, property<br />

boundaries <strong>and</strong> o<strong>the</strong>r significant variables. For vast <strong>and</strong> isolated regions such<br />

as Patagonia, where farms cover big areas that are <strong>of</strong>ten hard to access with<br />

vehicles <strong>and</strong> where <strong>the</strong>re are few trained people to conduct range evaluations,<br />

this technology multiplies human power <strong>and</strong> reduces operation costs.<br />

Decision Support Systems (DSS ) are clearly a new dimension for range<br />

management . Adaptive management information at <strong>the</strong> individual farm level


154<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

could be loaded into a GIS database. Modelling would provide integration <strong>of</strong><br />

different sources <strong>of</strong> information, to assist range managers <strong>and</strong> scientists to predict<br />

probable outcomes <strong>of</strong> specific problems at farm <strong>and</strong> regional scales, such<br />

as: flock allocation , mixed grazing , native flora <strong>and</strong> fauna conservation , spatial<br />

heterogeneity <strong>of</strong> grazing, long-term vegetation changes, economic evaluation<br />

<strong>of</strong> grazing strategies, <strong>and</strong> many o<strong>the</strong>r parameters (Bosch et al., 1996). Feedback<br />

information from associated farmers would be used to improve <strong>the</strong> power<br />

<strong>of</strong> predictive models . The development <strong>of</strong> DSS should increase <strong>the</strong> accuracy<br />

<strong>and</strong> soundness <strong>of</strong> grazing management strategies <strong>and</strong> also allow for fur<strong>the</strong>r<br />

reduction in <strong>the</strong> labour <strong>and</strong> time costs associated with range evaluation <strong>and</strong><br />

management.<br />

Priorities for development programmes <strong>and</strong> research<br />

Development programme priorities for Argentinian Patagonia over <strong>the</strong> next<br />

five years, as set out by INTA (Carlos Paz, pers. comm.) involve developing<br />

or adapting technology for: sustainable sheep farming systems (including <strong>the</strong><br />

development <strong>of</strong> eco-certification protocols); management <strong>and</strong> reclamation <strong>of</strong><br />

degraded grazing l<strong>and</strong> , in particular areas that have been severely disturbed by<br />

mining or oil extraction; regional GIS to develop DSS; genetic improvement <strong>of</strong><br />

ultra-fine Merino sheep <strong>and</strong> Angora goats (including <strong>the</strong> use <strong>of</strong> biotechnology);<br />

<strong>and</strong> improvement <strong>of</strong> wildlife use (guanacos <strong>and</strong> rheas ).<br />

Sustainable sheep farming priorities include both <strong>the</strong> development <strong>of</strong> ultrafine<br />

Merino wool production systems , especially in <strong>the</strong> provinces <strong>of</strong> Chubut,<br />

Río Negro <strong>and</strong> Neuquén, <strong>and</strong> <strong>the</strong> improvement <strong>of</strong> meat production systems on<br />

sheep farms <strong>of</strong> <strong>the</strong> grass -steppe biozone , ei<strong>the</strong>r along <strong>the</strong> Andes foothills or on<br />

<strong>the</strong> Magellanic steppes in sou<strong>the</strong>rn Santa Cruz <strong>and</strong> nor<strong>the</strong>rn Tierra del Fuego.<br />

The latter include <strong>the</strong> development <strong>of</strong> quality protocols. Rangel<strong>and</strong> management<br />

<strong>and</strong> reclamation priorities include <strong>the</strong> development <strong>of</strong> routines for longterm<br />

monitoring <strong>of</strong> pasture vegetation , <strong>the</strong> improvement <strong>of</strong> technology to<br />

reclaim old mining <strong>and</strong> oil field areas, areas severely overgrazed by sheep (with<br />

particular emphasis on riparian meadow ecosystems ), <strong>and</strong> <strong>the</strong> development <strong>of</strong><br />

GIS to run DSS at both regional <strong>and</strong> single-farm scales (INTA-CRPS, 2001b;<br />

INTA-CRPN, 2001). Besides <strong>the</strong>se main lines <strong>of</strong> development, agrotourism<br />

programmes will also continue to be developed, especially in areas with outst<strong>and</strong>ing<br />

scenic values <strong>and</strong> adequate infrastructure support.<br />

Research priorities are obviously related (but not limited) to development<br />

priorities for <strong>the</strong> region mentioned above. The main priorities as stated by<br />

<strong>the</strong> Secretaría para la Tecnología, la Ciencia y la Innovación Productiva<br />

(National Science <strong>and</strong> Technology Department) (one <strong>of</strong> <strong>the</strong> few local science<br />

<strong>and</strong> technology funding agencies) for <strong>the</strong> next five years are (SETCIP, 2000):<br />

impact <strong>of</strong> climate change at regional scales; study <strong>of</strong> ozone-layer dynamics<br />

<strong>and</strong> <strong>the</strong> consequences <strong>of</strong> increased ultraviolet radiation levels; catchment<br />

conservation <strong>and</strong> management for improved soil <strong>and</strong> water quality; evaluation


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> Patagonia 155<br />

<strong>and</strong> preservation <strong>of</strong> biodiversity ; improvement <strong>of</strong> ecological risk assessment,<br />

including <strong>the</strong> development <strong>of</strong> monitoring systems ; studies regarding appropriate<br />

use by tourism <strong>of</strong> natural reserve areas; improvement <strong>of</strong> sustainable sheep <strong>and</strong><br />

goat production, including <strong>the</strong> development <strong>of</strong> quality protocols; production<br />

<strong>of</strong> organic foods; <strong>and</strong> study <strong>of</strong> rural <strong>and</strong> urban labour conditions.<br />

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The South American Campos ecosystem 171<br />

Chapter 5<br />

The South American Campos ecosystem<br />

Olegario Royo Pallarés (Argentina ), Elbio J. Berretta (Uruguay )<br />

<strong>and</strong> Gerzy E. Maraschin (Brazil )<br />

SUMMARY<br />

The Campos , grassl<strong>and</strong> with few trees or shrubs except near streams, lies between<br />

24°S <strong>and</strong> 35°S; it includes parts <strong>of</strong> Brazil , Paraguay <strong>and</strong> Argentina , <strong>and</strong> all <strong>of</strong><br />

Uruguay . Grassl<strong>and</strong> -based livestock production is very important, based on <strong>the</strong><br />

natural grassl<strong>and</strong> that covers most <strong>of</strong> <strong>the</strong> area. Stock rearing is on large, delimited<br />

holdings <strong>and</strong> is commercial. Both tussock-grass <strong>and</strong> short-grass grassl<strong>and</strong>s occur.<br />

There is a dominance <strong>of</strong> summer -growing C4 grasses, with C3 grasses associated<br />

with <strong>the</strong> winter cycle. Cattle <strong>and</strong> horses were introduced in <strong>the</strong> seventeenth century<br />

<strong>and</strong> sheep in <strong>the</strong> nineteenth. Production is based on spring –summer growing<br />

grassl<strong>and</strong>, with little use <strong>of</strong> sown pastures. Beef cattle predominate; sheep<br />

are mainly for wool, but some lamb is produced. Limited winter production<br />

<strong>and</strong> poor herbage quality are major limiting factors in livestock production. Soil<br />

phosphorus is generally low <strong>and</strong> this deficiency affects stock. Campos pastures<br />

are highly responsive to fertilizers, which can modify <strong>the</strong> specific composition <strong>of</strong><br />

natural grassl<strong>and</strong>; application <strong>of</strong> phosphate increases legume cover <strong>and</strong> <strong>the</strong> phosphorus<br />

content <strong>of</strong> forage. Fattening <strong>of</strong>f grass can take up to four years; intensive<br />

fattening <strong>of</strong> younger stock uses some sown pasture . Sheep may be grazed with<br />

breeding herds <strong>of</strong> cattle. Exotic temperate legumes can be grown <strong>and</strong> may be<br />

over-sown into native swards after l<strong>and</strong> preparation; once established, legumes<br />

encourage <strong>the</strong> development <strong>of</strong> winter grasses. This paper shows that it is possible<br />

to improve forage consumption from natural grassl<strong>and</strong>s, implying an annual<br />

increase <strong>of</strong> 784 000 tonne <strong>of</strong> liveweight, without cost, in Rio Gr<strong>and</strong>e do Sul alone,<br />

through a strategy <strong>of</strong> high forage <strong>of</strong>fer to <strong>the</strong> grazing animal, which also optimizes<br />

forage accumulation rates in <strong>the</strong> pasture.<br />

INTRODUCTION<br />

The South American Campos is an ecological region lying between 24°S<br />

<strong>and</strong> 35°S, which includes parts <strong>of</strong> sou<strong>the</strong>rn Brazil , sou<strong>the</strong>rn Paraguay <strong>and</strong><br />

nor<strong>the</strong>astern Argentina , <strong>and</strong> <strong>the</strong> whole <strong>of</strong> Uruguay (see Figure 5.1), covering<br />

an area <strong>of</strong> approximately 500 000 km 2 . The term Campos refers to grassl<strong>and</strong>s<br />

or pastures with a vegetation cover comprising mainly grasses <strong>and</strong> herbs;<br />

scattered small shrubs <strong>and</strong> trees are occasionally found, generally by <strong>the</strong> banks<br />

<strong>of</strong> streams.


172<br />

Figure 5.1<br />

The Campos region <strong>of</strong> South America.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

The grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> Campos have enormous potential for cattle , sheep<br />

<strong>and</strong> horse production for meat , <strong>and</strong> for various wildlife products. This potential<br />

derives from <strong>the</strong> good environmental conditions, particularly <strong>the</strong> climate,<br />

which allows <strong>the</strong> growth <strong>of</strong> a great floristic diversity <strong>of</strong> edible plants that produce<br />

a huge bulk <strong>of</strong> forage throughout <strong>the</strong> year.<br />

The climate is subtropical to temperate , with very marked seasonal fluctuations;<br />

it is subhumid, because potential evapotranspiration in summer is greater<br />

than precipitation , which leads to moisture deficiencies in <strong>the</strong> soil. Although<br />

rainfall is distributed throughout <strong>the</strong> year, it is characterized by great variations<br />

between years; this irregularity is <strong>the</strong> main source <strong>of</strong> problems in forage production.<br />

The highest precipitation is usually in summer <strong>and</strong> autumn .<br />

Livestock production is one <strong>of</strong> <strong>the</strong> most important agricultural activities<br />

<strong>of</strong> <strong>the</strong> region, based on <strong>the</strong> natural grassl<strong>and</strong>s that cover 95 percent <strong>of</strong> <strong>the</strong><br />

area. Hence <strong>the</strong> great importance <strong>of</strong> this economic resource: its utilization in<br />

terms <strong>of</strong> maximum productivity while avoiding deterioration is an issue that


The South American Campos ecosystem 173<br />

concerns farmers, researchers <strong>and</strong> o<strong>the</strong>rs with an interest in natural resource<br />

conservation .<br />

GENERAL DESCRIPTION OF THE REGION<br />

Climate<br />

The Campos has a subtropical climate, very warm in summer but with frosts<br />

in winter . It is humid, <strong>of</strong>ten with moisture surplus in autumn <strong>and</strong> spring , but<br />

moderate deficits in summer (Escobar et al., 1996) Average annual temperature<br />

in Corrientes Province varies from 19.5°C in <strong>the</strong> south <strong>of</strong> <strong>the</strong> province to<br />

22.0°C in <strong>the</strong> north. The average <strong>of</strong> <strong>the</strong> coldest month varies from 13.5°C to<br />

16.0°C. Meteorological frosts are registered in <strong>the</strong> whole region, with low<br />

frequency, from one to six frosts per year, mainly in June <strong>and</strong> July, with records<br />

<strong>of</strong> first <strong>and</strong> last frosts from May to September.<br />

Average annual precipitation ranges between 1 200 <strong>and</strong> 1 600 mm, increasing<br />

from east to west. There is an unexplained increasing trend in mean<br />

annual precipitation; in <strong>the</strong> last 30 years autumn rainfall increased by more than<br />

100 mm, while spring rainfall tended to decrease. Monthly rainfall distribution<br />

is variable: April, March <strong>and</strong> February have averages above 170 mm/month. A<br />

second rainfall peak occurs in October–November, with 130–140 mm/month,<br />

<strong>and</strong> lower values are recorded in winter . The moisture balance shows periods<br />

<strong>of</strong> excess (precipitation higher than evapotranspiration) in autumn <strong>and</strong> spring<br />

(March–April <strong>and</strong> September–October) <strong>and</strong> deficits in summer (December–<br />

January). Annual average relative humidity for all locations ranges between 70<br />

<strong>and</strong> 75 percent, <strong>the</strong> lower values in summer <strong>and</strong> <strong>the</strong> higher in winter.<br />

Livestock production<br />

Cattle stock is about 4.2 million head in Corrientes Province (Argentina ) <strong>and</strong><br />

10.1 million in Uruguay , with little variation in recent years. Sheep stocks<br />

have been declining consistently, <strong>and</strong> in 1996 <strong>the</strong>re were 1.2 million head in<br />

Corrientes <strong>and</strong> 13 million in Uruguay. Low wool prices, reduction in domestic<br />

consumption <strong>of</strong> mutton <strong>and</strong> farmers discouraged by sheep rustling are <strong>the</strong><br />

main causes.<br />

Wildlife<br />

The Campos Ecosystem, with abundant open tussock ranges <strong>and</strong> gallery forests<br />

along watercourses, provides a suitable environment for <strong>the</strong> development <strong>of</strong> a<br />

varied <strong>and</strong> abundant fauna. The great diversity <strong>of</strong> water bodies, flooded areas,<br />

small <strong>and</strong> big lagoons allowed <strong>the</strong> development <strong>of</strong> important populations<br />

<strong>of</strong> carpinchos or capybaras (Hydrochoerus hidrochaeris) in almost all <strong>the</strong><br />

territory. Hunting <strong>of</strong> this animal for its valuable pelt is controlled by provincial<br />

authorities, <strong>and</strong> populations remain relatively stable. Deer are found in aquatic<br />

environments. Marsh deer (Odocoileus blastocerus) was an endangered species<br />

<strong>and</strong> now is controlled in protected areas in Brazil . In Uruguay , Ozotocerus


174<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

bezoarticus is <strong>the</strong> typical deer. O<strong>the</strong>r abundant species are yacares (Caiman<br />

spp.) <strong>and</strong> river wolves (giant otters, Pteronura brasiliensis). On <strong>the</strong> grassl<strong>and</strong><br />

part <strong>of</strong> <strong>the</strong> Campos <strong>the</strong>re are armadillos (Dasypus spp.), viscachas (Lagostomus<br />

maximus), hares, foxes, partridges, rheas <strong>and</strong> ducks, which are rarely harmed<br />

by humans.<br />

Floristic composition<br />

Within <strong>the</strong> Campos <strong>the</strong>re are various econiches, defined more by inherent<br />

botanical composition than by effect <strong>of</strong> use. The dominant vegetation in<br />

Corrientes is herbaceous, with few or no trees <strong>and</strong> shrubs, except for <strong>the</strong><br />

Ñ<strong>and</strong>ubay forest . Hence <strong>the</strong> name Campos or Campos limpios . Perennial<br />

summer grasses dominate, with sedges next in importance, <strong>and</strong> are found in<br />

every grassl<strong>and</strong> <strong>of</strong> <strong>the</strong> region. There are numerous legumes, but at very low<br />

frequencies. More than 300 species from 39 botanical families have been listed<br />

in <strong>the</strong> herbaceous strata (J.G. Fernández, pers. comm.), which reflects <strong>the</strong> great<br />

floristic diversity <strong>and</strong> botanical richness <strong>of</strong> <strong>the</strong>se grassl<strong>and</strong>s. Perennial grasses<br />

contribute 70–80 percent <strong>of</strong> <strong>the</strong> total dry matter (DM) yield; Cyperaceae<br />

follow, with 7 percent on higher ground <strong>and</strong> up to 20 percent in <strong>the</strong> marshy,<br />

low-lying wetl<strong>and</strong>s (malezales ). Legume contribution is always low, ranging<br />

from 3 to 8 percent <strong>of</strong> total DM yield on higher ground, <strong>and</strong> is practically nil<br />

in <strong>the</strong> lowl<strong>and</strong>s <strong>of</strong> <strong>the</strong> malezales.<br />

In <strong>the</strong> Rocky Outcrops (afloramiantos rocosos) zone, natural grassl<strong>and</strong>s<br />

have been regularly studied since <strong>the</strong> mid-1980s. In a grazing trial on 70 ha,<br />

178 species were noted. The three most important grasses were Andropogon<br />

lateralis , Paspalum notatum <strong>and</strong> Sporobolus indicus . O<strong>the</strong>r important grasses<br />

were Paspalum almum , P. plicatulum , Coelorachis selloana <strong>and</strong> Schizachyrium<br />

paniculatum . O<strong>the</strong>r species seldom contributed more than 10 percent <strong>of</strong> total<br />

biomass. Desmodium incanum was <strong>the</strong> only legume that regularly contributed to<br />

summer forage. The most abundant Cyperaceae was Rhynchospora praecincta .<br />

A greater range <strong>of</strong> species contributes to <strong>the</strong> total biomass <strong>of</strong> short-grass<br />

grassl<strong>and</strong>s, although three grasses – Paspalum notatum , Sporobolus indicus <strong>and</strong><br />

Axonopus argentinus – are <strong>the</strong> most frequent. An important feature <strong>of</strong> this grassl<strong>and</strong><br />

is that winter grasses can contribute from 3 to 20 percent <strong>of</strong> winter forage,<br />

depending on grazing management . The commonest winter species are Stipa<br />

setigera , Piptochaetium stipoides , P. montevidense <strong>and</strong> Trifolium polymorphum .<br />

Climax vegetation<br />

Cattle <strong>and</strong> horses were <strong>the</strong> first domestic herbivores, introduced by Spanish<br />

settlers at <strong>the</strong> beginning <strong>of</strong> <strong>the</strong> seventeenth century; sheep arrived in <strong>the</strong> midnineteenth<br />

century. The introduction <strong>of</strong> domestic livestock to <strong>the</strong> natural<br />

grassl<strong>and</strong> ecosystem has changed <strong>the</strong> vegetation type , as grazing is <strong>the</strong> main<br />

factor that keeps <strong>the</strong> grassl<strong>and</strong>s in a herbaceous pseudoclimax phase (Vieira<br />

da Silva, 1979). Exotic plants, mainly from Europe, were introduced along


The South American Campos ecosystem 175<br />

with livestock, increasing <strong>the</strong> disturbance. There is little information about<br />

<strong>the</strong> characteristics <strong>of</strong> <strong>the</strong> grassl<strong>and</strong>s previous to <strong>the</strong> introduction <strong>of</strong> domestic<br />

herbivores. According to Gallinal et al. (1938) “We do not know descriptions<br />

or precise indicators <strong>of</strong> existing vegetation prior to livestock introduction nor<br />

from <strong>the</strong> native immigration over areas that now are Campos ”. Some imprecise<br />

references to vegetation were made at <strong>the</strong> beginning <strong>of</strong> nineteenth century<br />

by travellers such as <strong>the</strong> foreigners Azara, Darwin <strong>and</strong> Saint Hilaire, <strong>and</strong> by<br />

criollos such as Fa<strong>the</strong>r Dámaso Antonio Larrañaga. From <strong>the</strong>ir descriptions it<br />

can be deduced that <strong>the</strong>re were no forest zones , except for <strong>the</strong> banks <strong>of</strong> rivers,<br />

<strong>and</strong> that <strong>the</strong> l<strong>and</strong>scape was characteristically a prairie with some small trees,<br />

shrubs <strong>and</strong> sub-shrubs.<br />

In an exclosure made in 1984 at <strong>the</strong> INIA Experimental Unit <strong>of</strong> Glencoe,<br />

Uruguay , (32°01�32�S <strong>and</strong> 57°00�39�W), where grazing was excluded on<br />

l<strong>and</strong> that had been grazed for centuries, tall bunchgrass-like plants began to<br />

increase <strong>and</strong> short-grasses showed reduced cover. There was also an increase <strong>of</strong><br />

sub-shrubs <strong>and</strong> shrubs such as Eupatorium buniifolium , Baccharis articulata ,<br />

B. spicata <strong>and</strong> B. trimera , while B. coridifolia decreased, as it is a species that<br />

thrives when grasses are weakened by grazing. B. dracunculifolia , a shrub <strong>of</strong><br />

three metres, which has branches that are easily broken by domestic herbivores,<br />

was found after six years <strong>of</strong> exclosure. The population <strong>of</strong> B. articulata<br />

remained stable for five years; <strong>the</strong>reafter all <strong>the</strong> plants died almost simultaneously,<br />

but after a similar period, <strong>the</strong> population re-established <strong>and</strong> died again,<br />

<strong>and</strong> now <strong>the</strong>re are new plants developing. Original plants <strong>of</strong> Eupatorium<br />

buniifolium remain, <strong>and</strong> <strong>the</strong>re are o<strong>the</strong>r, younger plants. The size <strong>of</strong> <strong>the</strong> grass<br />

bunches increased <strong>and</strong> <strong>the</strong> number <strong>of</strong> individual plant decreased, as shown by<br />

Stipa neesiana , Paspalum dilatatum , Coelorachis selloana <strong>and</strong> Schizachyrium<br />

microstachyum . There is a great development <strong>of</strong> grasses that were <strong>of</strong> very low<br />

frequency <strong>and</strong> rarely flowered under grazing, such as Paspalum indecorum ,<br />

Schizachyrium imberbe <strong>and</strong> Digitaria saltensis . Native legumes, although <strong>of</strong><br />

low frequency, also increased in vigour. The continued exclusion <strong>of</strong> grazing<br />

leads to increased litter accumulation, which changes <strong>the</strong> moisture retention<br />

capacity <strong>of</strong> <strong>the</strong> soil markedly. This effect, coupled with taller grasses, modifies<br />

<strong>the</strong> microclimate. The interruption <strong>of</strong> a factor that has driven vegetation to a<br />

new equilibrium point returns it to an earlier stage, but not exactly to <strong>the</strong> same<br />

starting point (Laycock, 1991). The situation after two decades <strong>of</strong> exclosure<br />

might be similar to that prior to domestic livestock introduction.<br />

GRASSLAND TYPES AND PRODUCTION SYSTEMS IN ARGENTINA<br />

The structure <strong>of</strong> <strong>the</strong> main grassl<strong>and</strong> types <strong>of</strong> <strong>the</strong> Mesopotamia Region <strong>of</strong><br />

Argentina was described by Van der Sluijs (1971). A paper on Grassl<strong>and</strong> types<br />

in <strong>the</strong> Centre-South <strong>of</strong> Corrientes was published by INTA Mercedes (INTA-<br />

EEA, 1977). Two different canopy structures are found, determined by <strong>the</strong><br />

growth form <strong>and</strong> habit <strong>of</strong> <strong>the</strong> dominant species.


176<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

On <strong>the</strong> one h<strong>and</strong> <strong>the</strong>re are <strong>the</strong> tussock prairies , called generically pajonales<br />

(straw ), with Andropogon lateralis being <strong>the</strong> commonest species, <strong>and</strong> <strong>the</strong>re<br />

are grassl<strong>and</strong>s dominated by Sorghastrum agrostoides , o<strong>the</strong>rs by Paspalum<br />

quadrifarium <strong>and</strong> o<strong>the</strong>rs by P. intermedium . These are typical <strong>of</strong> <strong>the</strong> ecological<br />

regions <strong>of</strong> Albardón del Paraná S<strong>and</strong>y Hills (lomadas arenosas); with lateritic<br />

hills <strong>and</strong> malezales on higher sites.<br />

On <strong>the</strong> o<strong>the</strong>r h<strong>and</strong> <strong>the</strong>re are short-grass grassl<strong>and</strong>s, where dominant species<br />

rarely exceed 30–40 cm in height. Here <strong>the</strong> commonest grasses are Paspalum<br />

notatum , Axonopus argentinus <strong>and</strong> Sporobolus indicus . Long-term overgrazing<br />

causes grassl<strong>and</strong> deterioration , which leads to a lower canopy, reduced floristic<br />

diversity <strong>and</strong> reduced vegetative growth. In this situation, flechilla becomes <strong>the</strong><br />

dominant grass (Aristida venustula ), so <strong>the</strong>se grassl<strong>and</strong>s are named flechillares .<br />

Deteriorated short-grass grassl<strong>and</strong>s dominate <strong>the</strong> centre-south <strong>of</strong> <strong>the</strong> province,<br />

in <strong>the</strong> Rocky Outcrops regions <strong>and</strong> Ñ<strong>and</strong>ubay forest . Intermediate situations<br />

are found between <strong>the</strong> two grassl<strong>and</strong> types , where pajonales <strong>and</strong> short-grass are<br />

mixed . These are mosaic grassl<strong>and</strong>s, characteristic <strong>of</strong> <strong>the</strong> floramientos region.<br />

Growth <strong>and</strong> forage production<br />

Annual production from various grassl<strong>and</strong> types <strong>and</strong> daily growth rates per<br />

hectare were evaluated for a 19-year period on Mercedes Experimental Station.<br />

A regrowth cutting methodology was employed, with mobile temporary<br />

enclosures (Brown, 1954; Frame, 1981). The main results were:<br />

• Pajonales Mean annual production was 5 077 kg DM/ha. Average monthly<br />

growth (Figure 5.2) showed regrowth in every month, including winter ,<br />

when growth was 5 kg DM/ha/day. The average monthly growth rate was<br />

at a maximum in February, March <strong>and</strong> December. Growth rate distribution<br />

Figure 5.2<br />

Average daily growth<br />

rates <strong>of</strong> a Pajonal<br />

grassl<strong>and</strong> (19-year<br />

average).<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

kg DM/ha/day<br />

J F M A M J J A S O N D<br />

Months


The South American Campos ecosystem 177<br />

kg DM/ha/year<br />

9 000<br />

8 000<br />

7 000<br />

6 000<br />

5 000<br />

4 000<br />

3 000<br />

2 000<br />

1 000<br />

0<br />

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99<br />

Years<br />

Figure 5.3<br />

Yearly growth rate <strong>of</strong> a short-grass grassl<strong>and</strong> over a 19-year period.<br />

through <strong>the</strong> year correlated positively with monthly variations in temperature,<br />

showing an autumn peak higher than <strong>the</strong> spring one. Variability between<br />

years is high, particularly in summer , which is related to rainfall variation <strong>and</strong><br />

high temperatures. Grassl<strong>and</strong> production <strong>of</strong> <strong>the</strong> main grassl<strong>and</strong> types <strong>of</strong> <strong>the</strong><br />

northwest <strong>of</strong> <strong>the</strong> province was studied by Gándara <strong>and</strong> co-workers (1989,<br />

1990a, b). These authors evaluated three pajonal-dominated sites: malezales ,<br />

Corrientes <strong>and</strong> Chavarria, <strong>and</strong> mean aboveground production for four<br />

clipping frequencies was 5 260, 4 850 <strong>and</strong> 4 120 kg DM/ha/year for <strong>the</strong> three<br />

sites, respectively.<br />

• Short-grass Average production <strong>of</strong> a short-grass grassl<strong>and</strong> was 5 803 kg DM/<br />

ha/year, with great variation between years <strong>and</strong> an increasing trend over time<br />

(Figure 5.3). Maximum growth rate was attained at <strong>the</strong> end <strong>of</strong> <strong>the</strong> summer<br />

or early autumn (February–March), when growth rates were estimated at<br />

25 kg DM/ha/day. July was <strong>the</strong> month with least growth; it was estimated at<br />

5.5 kg DM/ha/day. Yearly forage production showed an increasing trend over<br />

time, but this could be related to an increasing trend in annual precipitation<br />

over <strong>the</strong> same period. Such an increase could lead to a progressive increase in<br />

carrying capacity . Never<strong>the</strong>less, <strong>the</strong> most remarkable conclusion from <strong>the</strong> data<br />

is <strong>the</strong> great inter-annual variability.<br />

• Flechillares Average production <strong>of</strong> <strong>the</strong> flechillares was 2 774 kg DM/ha/year.<br />

The highest growth rate was in February <strong>and</strong> March, followed by December;<br />

<strong>the</strong> lowest in June–July. This grassl<strong>and</strong> has a seasonal distribution similar to<br />

<strong>the</strong> original short-grasses but has a proportionally better growth distribution<br />

between winter <strong>and</strong> spring . The carrying capacity <strong>of</strong> such grassl<strong>and</strong> is low, <strong>and</strong><br />

it becomes critical in years when rainfall is below average.


178<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Production systems<br />

Livestock production is based on <strong>the</strong> use <strong>of</strong> spring –summer growing<br />

grassl<strong>and</strong> , with little use <strong>of</strong> sown pastures or o<strong>the</strong>r supplementary sources<br />

<strong>of</strong> feed. The main production system is a mix <strong>of</strong> breeding <strong>and</strong> fattening, with<br />

increasing preference for breeding. Specialized fattening systems are irrelevant.<br />

Predominant breeds are Zebu-based, followed by European breeds, Indian<br />

breeds <strong>and</strong> criollas. The main systems are characterized by low production<br />

efficiency. The average extraction rate for sale is only 18.9 percent, while <strong>the</strong><br />

national average in Argentina reaches 23 percent.<br />

Sheep rearing is mainly for wool, <strong>and</strong> to a lesser extent for lamb. A cattle<br />

-sheep production system is applied by 3 400 farmers in <strong>the</strong> centre-south <strong>of</strong><br />

<strong>the</strong> province. Predominant breeds are Corriedale , Romney Marsh <strong>and</strong> Ideal.<br />

Lambing rates in Corrientes average 60 to 65 percent, with a mean greasy fleece<br />

weight <strong>of</strong> 3.18 kg/head. Provincial sheep stocks have declined in recent decades,<br />

following <strong>the</strong> same trend as <strong>the</strong> national stock. The sheep stock in 1993<br />

was 1.39 million head, with a greasy wool production <strong>of</strong> 4 427 000 kg.<br />

Productivity levels are low when compared with potential productivity in<br />

this environment. The reasons for this have been analysed by Royo Pallarés<br />

(1985), who indicated a series <strong>of</strong> environmental , social, economic <strong>and</strong> technical<br />

factors as <strong>the</strong> causes <strong>of</strong> low productivity in an economic inflation scenario.<br />

Gándara <strong>and</strong> Arias (1999) noted recently that resource mismanagement, limited<br />

adoption <strong>of</strong> improved technology, lack <strong>of</strong> service structures, poor cattle<br />

markets <strong>and</strong> small farm size were factors determining low productivity.<br />

Productivity <strong>of</strong> <strong>the</strong> best farms<br />

Many authors have reported productivity increases when some basic<br />

management technologies have been applied (Arias, 1997; Benitez Meabe,<br />

1997; Royo Pallarés, 1985, 1999). In <strong>the</strong> north <strong>of</strong> Corrientes, average<br />

productivity at subregional level is 30 kg/ha/year, while at <strong>the</strong> Experimental<br />

Unit, where basic management practices were applied, 67.7 kg/ha/year were<br />

obtained (Table 5.1).<br />

GRASSLAND TYPES AND PRODUCTION SYSTEMS IN URUGUAY<br />

Grassl<strong>and</strong> is defined as a vegetation cover formed by grasses, with associated<br />

herbs <strong>and</strong> dwarf shrubs, where trees are rare (Berretta <strong>and</strong> Nascimento,<br />

1991). The most numerous botanical family is <strong>the</strong> Gramineae, both summer<br />

(C4 ) <strong>and</strong> temperate (C3 ) types ; this association is an unusual characteristic<br />

<strong>of</strong> <strong>the</strong>se grassl<strong>and</strong>s. The most important Tribes are: Paniceae, including <strong>the</strong><br />

genera with most species, Paspalum , Panicum , Axonopus , Setaria , Digitaria ,<br />

etc.; Andropogoneae, with Andropogon , Bothriochloa , Schizachyrium , etc.;<br />

Eragrostea, with <strong>the</strong> genera Eragrostis , Distichlis , etc.; <strong>and</strong> Chlorideae, with<br />

Chloris , Eleusine , Bouteloua , etc. Winter-grass tribes, where most <strong>of</strong> <strong>the</strong><br />

cultivated forages belong, are: Poeae, with <strong>the</strong> genera Bromus , Poa , Melica , Briza ,


The South American Campos ecosystem 179<br />

TABLE 5.1<br />

Average productivity in northwest Corrientes in comparison with an experimental unit.<br />

Production indexes NW Corrientes Experimental Breeding Unit<br />

Marketing rate (%) 45 69.2<br />

Weaning weight (kg) 150 197<br />

Weaning weight per cow (kg) 67 136<br />

Cows/total stock 0.43 0.65<br />

Liveweight production (kg/ha/year) 30 67.7<br />

Carrying capacity (Animal Units/ha) –– 0.56 – 0.73 (1)<br />

NOTES: (1) September–March.<br />

SOURCE: After Arias, 1997.<br />

TABLE 5.2<br />

Daily Growth Rates (DGR) <strong>and</strong> <strong>the</strong>ir st<strong>and</strong>ard deviation (kg DM/ha/day), <strong>and</strong> Seasonal Distribution<br />

(SD) (%) <strong>of</strong> yearly forage production from grassl<strong>and</strong>s on <strong>the</strong> main soil types .<br />

Soil type<br />

Summer Autumn<br />

Season<br />

Winter Spring<br />

SBR<br />

DGR<br />

SD<br />

10.1 ± 4.9<br />

31.4<br />

6.8 ± 2.9<br />

21.2<br />

4.9 ± 2.5<br />

15.7<br />

9.9 ± 3.9<br />

31.7<br />

Basalt<br />

SB<br />

DGR<br />

SD<br />

13.6 ± 5.9<br />

32.1<br />

8.8 ± 3.9<br />

21.0<br />

6.1 ± 2.4<br />

14.9<br />

13.0 ± 4.3<br />

32.0<br />

D<br />

DGR<br />

SD<br />

17.2 ± 7.8<br />

33.3<br />

10.9 ± 4.2<br />

21.5<br />

7.3 ±3.1<br />

15.1<br />

14.8 ±4.4<br />

30.1<br />

Eastern Sierras<br />

DGR<br />

SD<br />

15.3<br />

38.0<br />

9.2<br />

23.4<br />

3.8<br />

9.7<br />

11.5<br />

28.9<br />

Crystalline Soils (granitic) D<br />

DGR<br />

SD<br />

13.1 ± 7.3<br />

28.6<br />

8.6 ± 3.3<br />

19.3<br />

6.5 ± 3.2<br />

14.5<br />

17.0 ± 6.8<br />

37.6<br />

S<strong>and</strong>y Soils<br />

Upper hill DGR<br />

Low hill<br />

SD<br />

DGR<br />

SD<br />

27.7 ± 5.6<br />

48.5<br />

27.3 ± 8.4<br />

44.5<br />

7.3 ± 4.2<br />

13.1<br />

7.5 ± 4.4<br />

13.6<br />

4.1 ± 2.3<br />

7.3<br />

3.7 ± 1.5<br />

6.1<br />

17.6 ± 3.3<br />

31.1<br />

22.2 ± 4.1<br />

36.8<br />

North East Soils<br />

DGR<br />

SD<br />

5.1<br />

18.3<br />

6.9<br />

25.0<br />

4.7<br />

17.1<br />

11.0<br />

39.6<br />

NOTES: SBR = Shallow Brown-Reddish. SB = Shallow Black. D = Deep.<br />

Lolium , Dactylis , Festuca , etc.; Stipeae, with Stipa <strong>and</strong> Piptochaetium – <strong>the</strong> bulk<br />

<strong>of</strong> <strong>the</strong> native species; <strong>and</strong> Agrostideae, with <strong>the</strong> genera Calamagrostis , Agrostis ,<br />

etc., with only a few species (Rosengurtt, Arrillaga de Maffei <strong>and</strong> Izaguirre de<br />

Artucio, 1970). In general terms, <strong>the</strong> presence <strong>of</strong> winter species is associated<br />

with soil type , topography, altitude, fertility <strong>and</strong> grazing management . Plants<br />

from o<strong>the</strong>r families grow with <strong>the</strong> grasses, such as Compositae, Leguminoseae,<br />

Cyperaceae, Umbelliferae, Rubiaceae, Plantaginaceae <strong>and</strong> Oxalidaceae. Native<br />

herbaceous legumes are represented by many genera – Trifolium , Adesmia ,<br />

Desmodium , Desmanthus , Galactia, Zornia , Mimosa, Tephrosia, Stylosan<strong>the</strong>s –<br />

but <strong>the</strong>ir net frequency is low, always below 3 percent in all types <strong>of</strong> grassl<strong>and</strong> ,<br />

except in very special habitats (Berretta, 2001). The natural grassl<strong>and</strong>s are used<br />

for extensive livestock production, with little improvement , <strong>and</strong> correspond<br />

with <strong>the</strong> main soil types (see Table 5.2). Vegetation characteristics <strong>of</strong> each<br />

grassl<strong>and</strong> type are defined firstly by <strong>the</strong> soil type, its physical <strong>and</strong> chemical<br />

properties, <strong>and</strong> to a lesser extent by topography <strong>and</strong> aspect.


180<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Some species are present in all grassl<strong>and</strong> types , although with variable frequencies;<br />

o<strong>the</strong>rs are present in some grassl<strong>and</strong>s; o<strong>the</strong>rs are characteristic <strong>and</strong><br />

indicators <strong>of</strong> certain habitats. Within each grassl<strong>and</strong> type <strong>the</strong>re are vegetation<br />

gradients associated with topography (upper slope, middle <strong>and</strong> valley) that<br />

with soil depth differences <strong>and</strong> moisture conditions produce a range <strong>of</strong> associations.<br />

In swampy, flooded places <strong>the</strong>re are Cyperus spp., Heleocharis spp.,<br />

Canna glauca, Leersia hex<strong>and</strong>ra , Luziola peruviana, Paspalum hydrophylum ,<br />

Pontederia cordata, Sagittaria montevidensis <strong>and</strong> Thalia spp.<br />

Perennials from <strong>the</strong> various families predominate in all grassl<strong>and</strong>s. Annuals<br />

are infrequent, but may become more prominent at some seasons <strong>of</strong> <strong>the</strong> year<br />

or due to management practices, such as grazing methods, fertilization , or <strong>the</strong><br />

introduction <strong>of</strong> exotics or legumes.<br />

In grassl<strong>and</strong> communities , a relationship can be established between <strong>the</strong><br />

percentage contribution <strong>of</strong> each species to total biomass <strong>and</strong> its degree <strong>of</strong><br />

contribution to soil cover. Theoretical studies (Poissonet <strong>and</strong> Poissonet, 1969;<br />

Daget <strong>and</strong> Poissonet, 1971) indicate that this relationship is commonly close to<br />

20:80 – a Gini-Lorenz relationship. Vegetation surveys carried out in different<br />

grassl<strong>and</strong>s <strong>and</strong> through several seasons showed relationships varying between<br />

30:70 <strong>and</strong> 20:80 (Coronel <strong>and</strong> Martínez, 1983; Olmos <strong>and</strong> Godron, 1990).<br />

Despite <strong>the</strong> number <strong>of</strong> species found, which is generally high, only about ten<br />

species make a major contribution to forage production. Identification <strong>of</strong> <strong>the</strong>se<br />

species is <strong>of</strong> particular interest when monitoring community evolution <strong>and</strong><br />

planning cattle management .<br />

Identification <strong>of</strong> growth habit types (Rosengurtt, 1979) can help in making<br />

grazing management decisions. Most summer <strong>and</strong> winter grasses are <strong>of</strong> a caespitose<br />

vegetative type . Stoloniferous grasses are all summer cycle, except for<br />

one. Rhizomatous species belong to various families (Gramineae, Cyperaceae,<br />

Compositae, Leguminosae, Umbelliferae, etc.) <strong>and</strong> <strong>the</strong>re are both winter- <strong>and</strong><br />

summer-cycle rosette plants, primarily Compositae <strong>and</strong> Umbelliferae. Growth<br />

habit types are used as a substitute where <strong>the</strong>re is a lack <strong>of</strong> precise data on <strong>the</strong><br />

nutritive value <strong>of</strong> forages <strong>and</strong> enabling <strong>the</strong> ranking <strong>of</strong> hundreds <strong>of</strong> species in<br />

a useful way for consideration in present <strong>and</strong> future vegetation management<br />

(Rosengurtt, 1946, 1979; Rosengurtt, Arrillaga de Maffei <strong>and</strong> Izaguirre de<br />

Artucio, 1970).<br />

Table 5.2 shows detailed Daily Growth Rates <strong>and</strong> <strong>the</strong>ir st<strong>and</strong>ard deviation,<br />

<strong>and</strong> seasonal distribution <strong>of</strong> grass production in different types <strong>of</strong> grassl<strong>and</strong>s.<br />

On some soils, forage growth reflects soil depth or topographic position, leading<br />

to different botanical composition s.<br />

On basalt soils, three vegetation types can be distinguished, directly related<br />

to soil depth. On shallow brown-reddish soils, vegetation cover is about<br />

70 percent, while rocks <strong>and</strong> stones cover 10 percent <strong>and</strong> <strong>the</strong> rest is bare soil <strong>and</strong><br />

litter. These values have some seasonal variations <strong>and</strong> show marked changes<br />

during droughts . Daily Growth Rates, expressed as kg DM/ha/day, is variable


The South American Campos ecosystem 181<br />

according to season <strong>and</strong> between years. Most annual forage grows in summer<br />

, but this season is <strong>the</strong> most variable due to high risk <strong>of</strong> drought on this<br />

soil. The commonest species are Schizachyrium spicatum , Chloris gr<strong>and</strong>iflora ,<br />

Eragrostis neesii , Eustachys bahiensis , Microchloa indica , Bouteloua megapotamica<br />

, Aristida venustula , Dichondra microcalyx , Oxalis spp. (macachines )<br />

<strong>and</strong> Selaginella sp. On <strong>the</strong> same soil type , but where <strong>the</strong> upper horizon<br />

reaches 15–20 cm in depth, o<strong>the</strong>r species are found, such as <strong>the</strong> summer grasses<br />

Paspalum notatum <strong>and</strong> Bothriochloa laguroides , <strong>and</strong> winter cycle grasses Stipa<br />

setigera (= S. neesiana ) <strong>and</strong> Piptochaetium stipoides . The presence <strong>of</strong> more productive<br />

species changes <strong>the</strong> seasonal distribution <strong>of</strong> growth, so highest productivity<br />

is in spring <strong>and</strong> autumn , although total annual production is similar.<br />

Vegetation cover is 80 percent on shallow black soils – <strong>the</strong> rest is litter<br />

<strong>and</strong> bare soil – <strong>and</strong> varies between seasons <strong>and</strong> years. The most frequent<br />

species are Schizachyrium spicatum , Chloris gr<strong>and</strong>iflora , Eustachys bahiensis<br />

, Bouteloua megapotamica , Aristida murina , A. uruguayensis , Dichondra<br />

microcalyx , Oxalis spp. , Nostoc sp. <strong>and</strong> Selaginella sp. Less frequent are Stipa<br />

setigera , Piptochaetium stipoides , Bothriochloa laguroides , Paspalum notatum ,<br />

P. plicatulum , Coelorhachis selloana <strong>and</strong> Adesmia bicolor . When <strong>the</strong> upper<br />

horizon is deeper, <strong>the</strong> usually less frequent species become more frequent.<br />

Total annual forage production on deeper soils is slightly greater, but seasonal<br />

distribution is different, with 70 percent <strong>of</strong> total forage being produced<br />

in spring <strong>and</strong> autumn .<br />

Deep fertile soils have a vegetation cover close to 90 percent, <strong>and</strong> <strong>the</strong> rest<br />

is litter. The main species on <strong>the</strong>se soils are Paspalum notatum , P. plicatulum ,<br />

P. dilatatum , Coelorachis selloana , Andropogon ternatus , Bothriochloa<br />

laguroides , Axonopus affinis , Aristida uruguayensis , Schizachyrium spicatum ,<br />

S. setigera , Cyperaceae, Piptochaetium stipoides , Poa lanigera , Trifolium polymorphum<br />

<strong>and</strong> Adesmia bicolor (Berretta, 1998).<br />

On all three soil types , <strong>the</strong> deeper <strong>the</strong> upper horizon, <strong>the</strong> greater <strong>the</strong> spring<br />

growth, by up to 40 percent. This may be related to higher frequency <strong>of</strong> winter<br />

species which flower in spring <strong>and</strong> again in autumn when <strong>the</strong>y regrow, <strong>and</strong><br />

when growth can be as high as 28 percent <strong>of</strong> <strong>the</strong> total.<br />

On s<strong>and</strong>y soils, botanical composition changes are mainly associated<br />

with topographic position. Table 5.2 shows daily growth rate <strong>and</strong> seasonal<br />

distribution <strong>of</strong> forage production from upper <strong>and</strong> lower parts <strong>of</strong> a hillside, in <strong>the</strong><br />

same topographic sequence. Annual forage yields from upper <strong>and</strong> lower areas<br />

averaged 5 144 kg DM/ha <strong>and</strong> 5 503 kg DM/ha, respectively, over eight years<br />

(Bemhaja, 2001). In such grassl<strong>and</strong> , growth peaks in spring <strong>and</strong> summer , with<br />

80 percent <strong>of</strong> total production. This is related in part to edaphic factors (depth,<br />

texture, moisture retention capacity ), but more to <strong>the</strong> dominance <strong>of</strong> summer<br />

species, such as Paspalum notatum , Axonopus compressus , A. argentinus ,<br />

Sporobolus indicus , Coelorachis selloana , Panicum milioides , P. sabulorum ,<br />

P. nicorae (which is a characteristic species <strong>of</strong> such soils) <strong>and</strong> Eragrostis


182<br />

Plate 5.1<br />

L<strong>and</strong>scape in <strong>the</strong> Sierras zone.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

purpurascens . The commonest winter grass is Piptochaetium montevidense .<br />

Dwarf herbs, such as Soliva pterosperma , Eryngium nudicaule , Chevreulia<br />

sarmentosa , <strong>and</strong> Dichondra microcalyx , are relatively frequent. Native legumes<br />

are infrequent, with Desmodium incanum <strong>the</strong> most representative. Baccharis<br />

coridifolia <strong>and</strong> Vernonia nudiflora are <strong>the</strong> main weeds in invaded fields (campo<br />

sucio).<br />

Managed burning is common on <strong>the</strong>se soils, as a tool to reduce dead material<br />

<strong>and</strong> to promote green spring regrowth <strong>and</strong> hence improve forage quality.<br />

Summer grasses are rough, clearly overshadow <strong>the</strong> sward <strong>and</strong> are little or not<br />

liked by livestock, except in very special circumstances; dead leaves <strong>and</strong> stems<br />

accumulate in winter , becoming even less palatable. The main such grasses are<br />

Erianthus angustifolius , Paspalum quadrifarium , Andropogon lateralis <strong>and</strong><br />

Schizachyrium microstachyum , associated with some dwarf shrub <strong>and</strong> shrub<br />

weeds that thrive in this conditions <strong>and</strong> give place to campos sucios <strong>and</strong> pajonales<br />

(straw fields ).<br />

Natural grassl<strong>and</strong>s on Brunosols are species rich. It is possible to find 50<br />

to 60 species in a 12 m 2 plot. Some 30 percent <strong>of</strong> <strong>the</strong> species present represent<br />

70 percent <strong>of</strong> total vegetation cover. Grasses are <strong>the</strong> most abundant, <strong>and</strong> 70 percent<br />

<strong>of</strong> <strong>the</strong>m are summer growing. Depending on local management practices,<br />

natural grassl<strong>and</strong>s may be covered by small shrubs or native trees. Legume<br />

presence under grazing conditions is sparse.<br />

Forage production averages 3 626 kg DM/ha/year in <strong>the</strong> lomadas zone <strong>and</strong><br />

about 1 500 kg DM/ha/year in <strong>the</strong> Sierras zone (Plate 5.1). Most <strong>of</strong> <strong>the</strong> plants<br />

(80–85 percent) are summer -cycle perennials. In spite <strong>of</strong> rich biodiversity , <strong>the</strong><br />

ELBIO BERRETTA


ELBIO BERRETTA<br />

ELBIO BERRETTA<br />

The South American Campos ecosystem 183<br />

Plate 5.2a<br />

Typical grassl<strong>and</strong> scenes on <strong>the</strong> Campos <strong>of</strong> Uruguay – Campos on shallow basaltic<br />

soil.<br />

Plate 5.2b<br />

Typical Grassl<strong>and</strong> Scenes on <strong>the</strong> Campos <strong>of</strong> Uruguay – Campos on granitic soils.<br />

number <strong>of</strong> species that contribute to forage production is low; <strong>the</strong> Paspalum<br />

notatum –Axonopus compressus s association is notably <strong>the</strong> main contributor.<br />

Forage digestibility is usually low (48–62 percent) (Ayala et al., 2001). Typical<br />

grassl<strong>and</strong> scenes on <strong>the</strong> Campos <strong>of</strong> Uruguay are shown in Plates 5.2a–f.


184<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 5.2c<br />

Typical grassl<strong>and</strong> scenes on <strong>the</strong> Campos <strong>of</strong> Uruguay – Campos on eastern hillocks.<br />

Plate 5.2d<br />

Typical grassl<strong>and</strong> scenes on <strong>the</strong> Campos <strong>of</strong> Uruguay – Campos on s<strong>and</strong>y soils.<br />

VEGETATION LIMITATIONS FOR ANIMAL PRODUCTION<br />

The main limitation <strong>of</strong> <strong>the</strong> humid subtropical grassl<strong>and</strong>s is <strong>the</strong>ir poor herbage<br />

quality. Although this is well known, <strong>and</strong> has been <strong>the</strong> subject <strong>of</strong> many<br />

papers (Royo Pallarés, 1985; Deregibus, 1988), little progress has been made<br />

in overcoming it. C4 -dominated grassl<strong>and</strong>s, with high temperatures <strong>and</strong> good<br />

rainfall produce high growth rates , which leads to a dilution <strong>of</strong> nutrients <strong>and</strong><br />

ELBIO BERRETTA<br />

ELBIO BERRETTA


ELBIO BERRETTA<br />

ELBIO BERRETTA<br />

The South American Campos ecosystem 185<br />

Plate 5.2e<br />

Typical grassl<strong>and</strong> scenes on <strong>the</strong> Campos <strong>of</strong> Uruguay – Winter sunset over <strong>the</strong><br />

Campos on granitic soils in sou<strong>the</strong>rn Uruguay.<br />

Plate 5.2f<br />

Typical Grassl<strong>and</strong> Scenes on <strong>the</strong> Campos <strong>of</strong> Uruguay – Campos in Central Uruguay<br />

with cows grazing on basaltic soils.<br />

a marked decrease in digestibility , which rarely exceeds 60 percent; forage<br />

crude protein levels barely reach basic cattle requirements. This situation is<br />

aggravated in winter by frost. Most <strong>of</strong> <strong>the</strong> year <strong>the</strong>re is a “green desert ” – a<br />

great bulk <strong>of</strong> low quality forage, in a difficult-to-graze pasture structure. The<br />

animals graze in a “sea <strong>of</strong> forage”, but have low intake. Fire is used in most<br />

cases to stimulate regrowth <strong>and</strong> improve grassl<strong>and</strong> quality


186<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Salt deficiency was noted as a problem at <strong>the</strong> end <strong>of</strong> <strong>the</strong> nineteenth century<br />

in <strong>the</strong> Campos . Phosphorus deficiency was identified (Kraemer <strong>and</strong> Mufarrege,<br />

1965), <strong>and</strong> since <strong>the</strong>n it has become increasingly obvious that phosphorus deficiency<br />

is one <strong>of</strong> <strong>the</strong> main constraints on livestock production in Corrientes. The<br />

soils have less than 5 ppm <strong>of</strong> available phosphorus, so forage has a phosphorus<br />

content below 0.10 percent. This strongly limits both forage production <strong>and</strong><br />

quality, which in turn limits <strong>the</strong> animal output that can be obtained. Research<br />

on many aspects <strong>of</strong> phosphorus nutrition <strong>of</strong> cattle <strong>and</strong> pastures have been conducted<br />

in Corrientes (Arias <strong>and</strong> Manunta, 1981; Arias et al, 1985; Mufarrege,<br />

Somma de Fere <strong>and</strong> Homse, 1985; Wilken, 1985; Royo Pallarés <strong>and</strong> Mufarrege,<br />

1969; Royo Pallarés, 1985). Mineral supplementation to correct phosphorus<br />

deficiencies is <strong>the</strong> technology most accepted <strong>and</strong> adopted by farmers; but <strong>the</strong>re<br />

are still doubts, misconceptions <strong>and</strong> practical problems in its implementation.<br />

Production systems<br />

The main production systems are:<br />

• calf production (Cría) only, with sales <strong>of</strong> weaned male calves <strong>and</strong> rejected<br />

cows, keeping replacement females;<br />

• breeding <strong>and</strong> growth (Recría), where male calves are kept after weaning, to be<br />

sold to o<strong>the</strong>r farmers at 18 to 30 months, before winter ;<br />

• complete cycle, which is <strong>the</strong> breeding <strong>and</strong> fattening <strong>of</strong> all calves to slaughter,<br />

which can occur at different ages <strong>and</strong> weights; <strong>and</strong><br />

• fattening, which can be on natural grassl<strong>and</strong>s. In that case steers are finished<br />

for slaughter at over four years old, starting with one-year-old or older steers.<br />

Intensive fattening starts from weaned calves or young steers, using variable<br />

proportions <strong>of</strong> improved grassl<strong>and</strong> or cultivated pastures.<br />

In any <strong>of</strong> <strong>the</strong>se cases, cattle rearing may be accompanied by sheep (Plate 5.3).<br />

This is commoner in breeding than in fattening systems . Sheep breeding systems<br />

are similar. Castrated weaned lambs <strong>and</strong> rejected ewes are <strong>the</strong> main income source,<br />

but <strong>the</strong> current trend is to sell heavier lambs <strong>of</strong> more than 40 kg liveweight.<br />

According to grassl<strong>and</strong> characteristics, mixed set stocking in cattle production<br />

has many limitations, mainly nutritional. Some <strong>of</strong> <strong>the</strong> major constraints<br />

are advanced age <strong>of</strong> heifers at first mating (a mean <strong>of</strong> three years old); low<br />

calving rate (65 percent); low liveweight gain <strong>of</strong> calves, with consequently low<br />

weaning weight (130–140 kg); advanced slaughter age (4 years); <strong>and</strong> low extraction<br />

rate (18–20 percent). Under such conditions, beef production on natural<br />

grassl<strong>and</strong>s is about 65 kg/ha/year.<br />

Table 5.3 compares two management systems , with <strong>and</strong> without sheep , on<br />

basalt grassl<strong>and</strong>s. Both systems were evaluated under grazing conditions with a<br />

continuous fixed stocking rate <strong>of</strong> 1 cow-equivalent per hectare, for four years.<br />

Despite <strong>the</strong> high stocking rate <strong>and</strong> simple management , <strong>the</strong> results show<br />

higher productivity levels than those <strong>of</strong> extensive production systems . Yearly<br />

variations in birth <strong>and</strong> weaning rates are <strong>the</strong> main factors determining animal


ELBIO BERRETTA<br />

The South American Campos ecosystem 187<br />

Plate 5.3<br />

Mixed grazing .<br />

TABLE 5.3<br />

Reproductive performance <strong>and</strong> productivity <strong>of</strong> two management systems .<br />

Year Birth rate<br />

(%)<br />

Weaning rate<br />

(%)<br />

Weaning weight<br />

(kg)<br />

Productivity (kg/ha)<br />

Liveweight Wool<br />

Cattle system<br />

1 80.0 77.5 141 109 –<br />

2 60.0 55.5 141 78 –<br />

3 87.5 75.0 137 103 –<br />

4 75.0 70.0 143 100 –<br />

Average<br />

Mixed system<br />

75.6 69.5 141 988 -<br />

1 75.0 70.0 153 107 10.1<br />

2 55.0 50.5 143 72 9.0<br />

3 78.0 75.0 166 125 10.3<br />

4 65.0 60.0 160 96 9.8<br />

Average 68.0 64.0 156 100 9.8<br />

SOURCE: Adapted from Pigurina, Soares de Lima <strong>and</strong> Berretta, 1998.<br />

production. Weaning rates are higher in <strong>the</strong> cattle -only system, but weaning<br />

weight <strong>and</strong> total productivity were higher in <strong>the</strong> mixed system.<br />

Fattening steers on natural grassl<strong>and</strong>s takes a long time because liveweight<br />

gain s are variable between seasons, related to availability <strong>and</strong> quality <strong>of</strong> forage,<br />

stocking rate <strong>and</strong> presence or absence <strong>of</strong> sheep (Table 5.4).<br />

Different feeding, management <strong>and</strong> sanitary control strategies affect sheep<br />

production. Research programmes focus on increasing wool <strong>and</strong> lamb production<br />

efficiency, <strong>and</strong> <strong>the</strong> quality <strong>of</strong> both products.<br />

Technical options for extensive conditions are presented in Table 5.5. In<br />

traditional systems , nutritional levels are insufficient for breeding ewes in <strong>the</strong><br />

last third <strong>of</strong> pregnancy, with consequent low weight <strong>and</strong> low fat score at lambing.


188<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

TABLE 5.4<br />

Steer liveweight variation (kg/head/day) <strong>and</strong> productivity (kg/ha/year) in relation to stocking rate<br />

<strong>and</strong> sheep :cattle ratio (S:C) in continuous set stocking on natural grassl<strong>and</strong>s.<br />

Stocking rate (AU/ha) 0.6 (1) 0.8 (1) 0.8 (1) 0.9 (2) 1.06 (1) 1.06 (1)<br />

S:C ratio 2:1 2:1 5:1 0:1 2:1 5:1<br />

Season Liveweight variation, kg/day<br />

Autumn 0.196 bc 0.194 c 0.139 bc -0.248 c -0.076 c -0.130 c<br />

Winter 0.089 c -0.176 d -0.086 c 0.075 b -0.312 d -0.397 d<br />

Spring 0.915 a 0.858 a 0.828 a 0.758 a 0.667 a 0.720 a<br />

Summer 0.351 b 0.413 b 0.297 b 0.604 a 0.431 b 0.436 b<br />

Yearly average 0.388 A 0.322 A 0.295 AB 0.297 AB 0.178 B 0.157 B<br />

Total steer production<br />

kg/head/year) 141 A 118 A 108 B 108 B 65 B 57 B<br />

kg/ha (3) 75 84 54 125 62 38<br />

NOTES: a, b, c – Averages in <strong>the</strong> same column with distinct letters differ significantly (P


ELBIO BERRETTA<br />

The South American Campos ecosystem 189<br />

Plate 5.4<br />

Grazing management : forage deferred for winter grazing .<br />

lambing <strong>and</strong> improved grassl<strong>and</strong>s 40 to 30 days before lambing. These values<br />

are modified by wea<strong>the</strong>r conditions, which affect <strong>the</strong> growth rate, <strong>and</strong> also by<br />

<strong>the</strong> amount <strong>of</strong> forage present at <strong>the</strong> start <strong>of</strong> <strong>the</strong> accumulation period.<br />

Most ewe hoggets are mated at 2.5 years (four teeth) since many <strong>of</strong> <strong>the</strong>m<br />

(40–60 percent) do not reach <strong>the</strong> minimum liveweight for mating at 1.5 years).<br />

This has adverse productive <strong>and</strong> economic consequences for <strong>the</strong> industry, as<br />

it reduces <strong>the</strong> number <strong>of</strong> lambs produced by each ewe in her lifetime, reduces<br />

genetic progress <strong>of</strong> <strong>the</strong> flock <strong>and</strong> constrains <strong>the</strong> overall efficiency <strong>of</strong> <strong>the</strong> system.<br />

To increase lamb production it is very important to increase <strong>the</strong> reproduction<br />

rate <strong>of</strong> hoggets.<br />

Several management strategies have been defined to improve <strong>the</strong> liveweight<br />

gain <strong>of</strong> hoggets on natural grassl<strong>and</strong> on basalt soils (San Julián et al., 1998). The<br />

use <strong>of</strong> improved grassl<strong>and</strong> <strong>and</strong> sown pastures allows winter liveweight gains <strong>of</strong><br />

60 to 90 g/head/day. Such rates <strong>of</strong> gain allow a high proportion <strong>of</strong> hoggets (80–<br />

90 percent) to attain mating weight at two-tooth, implying weights exceeding<br />

32 <strong>and</strong> 35 kg for Merino <strong>and</strong> Corriedale hoggets, respectively. To attain <strong>the</strong>se<br />

gains in winter it is necessary to provide 1 500 kg DM/ha <strong>of</strong> deferred forage,<br />

with a height <strong>of</strong> 5 to 6 cm, on natural grassl<strong>and</strong>s or 1 000 kg DM/ha, with a<br />

height <strong>of</strong> 4 to 5 cm, on improved grassl<strong>and</strong>s (San Julián et al., 1998).<br />

In a study in <strong>the</strong> basalt zone (Ferreira, 1997), three groups <strong>of</strong> farmers could<br />

be distinguished according to production systems <strong>and</strong> technical dem<strong>and</strong>s. The<br />

first group , 56 percent <strong>of</strong> farmers studied, had low-potential natural resources<br />

<strong>and</strong> used a defensive strategy in <strong>the</strong>ir decision-making, which resulted in very<br />

low levels <strong>of</strong> technology adoption, <strong>and</strong> <strong>the</strong> technology available for shallow


190<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

soils did not show sufficiently attractive response levels <strong>and</strong> stability to cross<br />

<strong>the</strong> risk aversion thresholds <strong>of</strong> <strong>the</strong>se farmers. The second group, 18 percent<br />

<strong>of</strong> <strong>the</strong> sample, responded better to technology adoption <strong>and</strong> behaved proactively<br />

to technical change: <strong>the</strong>y were not only receptive to new technologies,<br />

but also experimented <strong>and</strong> constantly analysed <strong>the</strong> effects <strong>of</strong> <strong>the</strong> introduction<br />

<strong>of</strong> technical changes. The third group (26 percent) were <strong>the</strong> bigger farmers,<br />

with a reactive <strong>and</strong> imitative attitude that incorporated technologies that have<br />

been successfully applied by o<strong>the</strong>rs. The author concludes that <strong>the</strong> technology<br />

<strong>of</strong>fered must be matched to each group, <strong>and</strong> – even more important – <strong>the</strong> technology<br />

identification process should be different for each group.<br />

GRASSLAND PRODUCTION SYSTEMS IN SOUTHERN BRAZIL<br />

The natural grassl<strong>and</strong>s <strong>of</strong> Sou<strong>the</strong>rn Brazil include native forests <strong>and</strong> herbaceous<br />

vegetation , both as open grassl<strong>and</strong>s <strong>and</strong> dwarf shrub associations, forming a<br />

mosaic with savannah characteristics. Herbaceous vegetation, <strong>of</strong> diverse forms<br />

<strong>and</strong> botanical composition , is strongly influenced by temperature, showing<br />

seasonal productivity variations. Grasses predominate, accompanied by some<br />

legumes. Herbage develops under <strong>the</strong> influence <strong>of</strong> latitude, altitude <strong>and</strong> soil<br />

fertility, with a dominance <strong>of</strong> <strong>the</strong> C4 species that grow in <strong>the</strong> warm season,<br />

associated with C3 species in <strong>the</strong> winter cycle. Relative dominance <strong>of</strong> species<br />

on grassl<strong>and</strong>s determines its growth capacity in each season <strong>and</strong> <strong>the</strong> balance <strong>of</strong><br />

forage production. More than 800 grass species have been recorded, with 200<br />

legume species. These grow in associations with herbs such as Compositae <strong>and</strong><br />

Cyperaceae, besides shrubs, resulting in a very rich floral biodiversity . Edaphic<br />

factors lead to marked variations in botanical composition <strong>and</strong> substantial<br />

productivity differences as a function <strong>of</strong> <strong>the</strong> dominance <strong>of</strong> particular species.<br />

Extensive <strong>and</strong> extractive livestock production has developed in this ecosystem<br />

since <strong>the</strong> colonization <strong>of</strong> <strong>the</strong> region.<br />

An ecological underst<strong>and</strong>ing <strong>of</strong> natural processes is <strong>the</strong> basis for management<br />

. Factors include productivity , vegetation cover preservation, pastoral<br />

value, environmental limitations <strong>and</strong> recognition <strong>of</strong> <strong>the</strong> natural succession<br />

process. Grassl<strong>and</strong> ecology is closely associated with human activity <strong>and</strong> management<br />

<strong>of</strong> domestic herbivores. Grazing animals are major determinants <strong>of</strong><br />

vegetation structure, as consumption may reach 50 percent <strong>of</strong> above ground<br />

net primary production (ANPP ) <strong>and</strong> up to 25 percent <strong>of</strong> subterranean productivity<br />

(Sala, 1988). Plants differ in <strong>the</strong>ir responses to defoliation, with differential<br />

seasonal growing rates , <strong>and</strong> herbivores select <strong>and</strong> consume species <strong>and</strong> parts<br />

<strong>of</strong> plants disproportionately to <strong>the</strong>ir abundance in <strong>the</strong> pasture (Boldrini, 1993).<br />

This natural resource is useful for herbivores; grazing influences species, life<br />

forms <strong>and</strong> growth <strong>of</strong> <strong>the</strong> vegetation <strong>and</strong> it can be managed to satisfy economic<br />

needs. Different animal species use a wider range <strong>of</strong> forage <strong>and</strong> may direct succession<br />

to vegetation states that are ecologically <strong>and</strong> economically attractive<br />

(Araujo Filho, Sousa <strong>and</strong> Carvalho, 1995).


ILSI BOLDRINI<br />

ILSI BOLDRINI<br />

The South American Campos ecosystem 191<br />

Plate 5.5<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> sou<strong>the</strong>rn Brazil . (a) <strong>Grassl<strong>and</strong>s</strong> with Araucaria trees.<br />

(b) Representative grassl<strong>and</strong> on <strong>the</strong> mid-level plateau, with “barba-de-bode”<br />

(Aristida jubata).<br />

The 12–15 million hectares <strong>of</strong> natural grassl<strong>and</strong>s in Sou<strong>the</strong>rn Brazil show<br />

great structural diversity (see Plate 5.5), with grass dominance <strong>and</strong> few legumes.<br />

Ignorance <strong>of</strong> <strong>the</strong>ir nature <strong>and</strong> potential led to <strong>the</strong> belief that <strong>the</strong>y were unproductive<br />

<strong>and</strong> should be replaced by sown forages. This was associated with <strong>the</strong><br />

concept <strong>of</strong> selective grazing <strong>and</strong> ignorance about its advantages to promote


192<br />

(c) Grassl<strong>and</strong> with Melica macra.<br />

(d) Upl<strong>and</strong> grassl<strong>and</strong> in winter.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

ILSI BOLDRINI ILSI BOLDRINI


The South American Campos ecosystem 193<br />

faster regrowth after grazing. Animal type , <strong>the</strong>ir genetics <strong>and</strong> aptitudes condition<br />

<strong>the</strong> development <strong>of</strong> natural grassl<strong>and</strong>s. Society is now promoting conservation<br />

<strong>of</strong> natural ecosystems in managed recreation areas, where herbivores are<br />

always l<strong>and</strong>scape modellers. A number <strong>of</strong> technical reports on this situation<br />

are available.<br />

Forage from natural grassl<strong>and</strong>s can only be marketed in <strong>the</strong> form <strong>of</strong> animal<br />

products. Nationally, <strong>the</strong>re is still an instinctive resistance, if not dislike,<br />

to exploitation <strong>and</strong> use <strong>of</strong> natural grassl<strong>and</strong>s through pastoralism (Tothill,<br />

Dzowela <strong>and</strong> Diallo, 1989). The measure <strong>of</strong> communal grazing is yield per unit<br />

<strong>of</strong> area, as <strong>the</strong> number <strong>of</strong> animals represents <strong>the</strong> economic value <strong>of</strong> <strong>the</strong> activity.<br />

In <strong>the</strong> philosophy <strong>of</strong> managed ecosystems (ranching), yield per animal <strong>and</strong><br />

commercial value <strong>of</strong> <strong>the</strong> product represent <strong>the</strong> economic value. This philosophy<br />

<strong>of</strong> forage use is based on management <strong>of</strong> pastures <strong>and</strong> stock in delimited areas,<br />

with <strong>the</strong> possibility <strong>of</strong> external inputs. There are still many natural grassl<strong>and</strong><br />

properties operating with <strong>the</strong> philosophy <strong>and</strong> yield <strong>of</strong> pastoralism, which could<br />

attain <strong>the</strong> yield <strong>of</strong> managed ecosystems.<br />

Until recently, stock rearers did not underst<strong>and</strong> basic grassl<strong>and</strong> management<br />

technology: to maintain vegetation <strong>and</strong> make long-term decisions on sustainability<br />

. The need is now appreciated <strong>of</strong> underst<strong>and</strong>ing natural grassl<strong>and</strong>s <strong>and</strong><br />

recognizing <strong>the</strong> availability level that does not restrict animal intake, in order to<br />

attain high individual performance <strong>and</strong> high per-hectare production.<br />

Dry matter accumulation in natural grassl<strong>and</strong>s<br />

The climatic transition strip in <strong>the</strong> south <strong>of</strong> Brazil favours summer grasses,<br />

which explains <strong>the</strong> seasonal differences in forage production (Apezteguia,<br />

1994; Correa <strong>and</strong> Maraschin, 1994; Maraschin et al., 1997). In <strong>the</strong> cool season,<br />

which covers from a third to half <strong>of</strong> <strong>the</strong> year, <strong>the</strong>re is slower growth due to<br />

low temperature, frost <strong>and</strong> irregular rainfall . Rejected forage increases errors<br />

in pasture evaluation (Moojen, 1991). Native winter species contributed<br />

17 percent <strong>of</strong> yearly DM production in Uruguay (Berretta <strong>and</strong> Bemhaja, 1991)<br />

<strong>and</strong> 18 percent in Rio Gr<strong>and</strong>e do Sul (Gomes, 1996). But <strong>the</strong> warm season<br />

covers two-thirds to half <strong>the</strong> year (Maraschin et al., 1997). Daily growth is<br />

termed <strong>the</strong> DM Accumulation Rate (AR) <strong>and</strong> represents what can be grazed.<br />

Table 5.6 shows ARs (in kg DM/ha/day) in a Rio Gr<strong>and</strong>e do Sul natural<br />

grassl<strong>and</strong> , influenced by forage <strong>of</strong>fer (FO) levels per head <strong>and</strong> per day, with<br />

corresponding residual DM (Moojen, 1991; Correa <strong>and</strong> Maraschin, 1994).<br />

ARs increase with increasing levels <strong>of</strong> FO until more than 12 percent <strong>of</strong><br />

liveweight, <strong>and</strong> tends to decrease after FO exceeds 16 percent <strong>of</strong> liveweight.<br />

Maximum recorded AR was 16.3 kg DM/ha/day, with an FO <strong>of</strong> 13.5 percent<br />

<strong>of</strong> liveweight, which corresponded to forage availability <strong>of</strong> 1 400–1 500 kg DM/<br />

ha at any time.<br />

Unfertilized natural grassl<strong>and</strong>s produced 2 075 to 3 393 kg DM/ha considered<br />

as available forage, defining <strong>the</strong> number <strong>of</strong> animals that could be grazed on


194<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

TABLE 5.6<br />

Pasture parameters <strong>and</strong> radiant energy conversion efficiency on a natural grassl<strong>and</strong> in <strong>the</strong> Central<br />

Depression <strong>of</strong> Rio Gr<strong>and</strong>e do Sul, with dominance <strong>of</strong> P. notatum <strong>and</strong> different forage <strong>of</strong>fer (FO)<br />

levels (5-year average; 21.6 TJ/ha <strong>of</strong> incident PAR).<br />

Dry matter on <strong>of</strong>fer – percent liveweight<br />

Parameters<br />

4.0 8.0 12.0 16.0<br />

Accumulation Rate (AR) kg DM/ha/day 11.88 15.52 16.28 15.44<br />

DM Production kg/ha 2 075 3 488 3 723 3 393<br />

Primary Aerial Productivity (PAP) MJ/ha 40.877 68.714 73.343 66.842<br />

PAR/PAP Efficiency % 0.20 0.34 0.36 0.33<br />

Daily liveweight gain (DLWG ) kg/head 0.150 0.350 0.450 0.480<br />

Animal-day/ha no. 572 351 286 276<br />

Stocking rate kg LW/day/ha 710 468 381 368<br />

Residual DM kg/ha 568 1 006 1 444 1 882<br />

Liveweight gain (LWG ) kg/ha 80 120 140 135<br />

Secondary production (SP) MJ/ha 1 880 2 820 3 290 3 173<br />

PAR/SP Efficiency % 0.009 0.0015 0.017 0.013<br />

PAP/SP % 4.48 4.53 4.66 4.10<br />

SOURCE: Adapted from Maraschin et al., 1997; Nabinger, 1998.<br />

<strong>the</strong>m. With plant development <strong>and</strong> dead matter accumulation at <strong>the</strong> base <strong>of</strong> <strong>the</strong><br />

plants, <strong>the</strong>re seems to be a reduction in AR <strong>and</strong> also a liveweight gain inhibition,<br />

as <strong>the</strong> treatment with an FO <strong>of</strong> 16 percent <strong>of</strong> liveweight suggested. The parallelism<br />

<strong>of</strong> both development curves suggests liveweight gain variations are closely related<br />

to AR (kg DM/ha/day), as both showed optimal response at an FO <strong>of</strong> 13 percent<br />

liveweight.<br />

Grazing intensity effects can be evaluated on <strong>the</strong> energy flow <strong>of</strong> <strong>the</strong> system,<br />

as a function <strong>of</strong> FO levels. Forage availability (kg DM/ha) <strong>and</strong> liveweight gain<br />

(kg LW/ha) are multiplied by 19.7 <strong>and</strong> 23.5 MJ/kg, respectively (Briske <strong>and</strong><br />

Heitschmidt, 1991). Based on normal global radiation <strong>and</strong> photosyn<strong>the</strong>tically<br />

active radiation (PAR), Nabinger (1998) determined conversion efficiency<br />

indexes, which represent <strong>the</strong> quotient between <strong>the</strong> energy values considered,<br />

multiplied by 100 (Table 5.6). With an FO <strong>of</strong> 4.0 percent LW, conversion<br />

efficiency <strong>of</strong> PAR to DM is estimated at close to 0.20 percent. Conversion<br />

increased to 0.34 percent with an FO <strong>of</strong> 8 percent LW, peaked at 0.36 percent<br />

with an FO <strong>of</strong> 12.0 percent LW <strong>and</strong> declined to 0.33 percent with an FO <strong>of</strong><br />

16.0 percent LW, as a consequence <strong>of</strong> age <strong>and</strong> senescence <strong>of</strong> natural grassl<strong>and</strong>s,<br />

influenced by FO levels. Primary production <strong>of</strong> natural grassl<strong>and</strong> increased<br />

markedly (+80 percent) when FO was 12 percent.<br />

The grazing animal prefers green grass to dry , leaf to stem, <strong>and</strong> <strong>the</strong> upper half<br />

<strong>of</strong> young leaves; this shows clearly what forage is desirable <strong>and</strong> what should <strong>the</strong>refore<br />

be encouraged in <strong>the</strong> sward. It is necessary to distinguish between <strong>the</strong> total<br />

aerial biomass <strong>of</strong> plants <strong>and</strong> <strong>the</strong> available DM for <strong>the</strong> grazing animal; <strong>the</strong> former<br />

is <strong>the</strong> forage technically within reach <strong>of</strong> <strong>the</strong> animal, while <strong>the</strong> latter is <strong>the</strong> forage<br />

selected. It has to be clear what should be <strong>the</strong> optimum height <strong>of</strong> <strong>the</strong> pasture after<br />

grazing to maintain regrowth capacity (Maraschin, 1993). Underst<strong>and</strong>ing this


The South American Campos ecosystem 195<br />

provides underst<strong>and</strong>ing <strong>of</strong> how animals behave on different swards <strong>and</strong> pasture<br />

conditions.<br />

Data in Table 5.6 show that <strong>the</strong> highest liveweight gain (LWG ) per head<br />

is when <strong>the</strong> number <strong>of</strong> animal-days per ha is low <strong>and</strong> LWG /ha reaches its<br />

maximum close to <strong>the</strong> maximum pasture AR , with an FO <strong>of</strong> 12 percent LW.<br />

Similarly, observing <strong>the</strong> efficiency <strong>of</strong> secondary production as a function <strong>of</strong><br />

<strong>the</strong> energy fixed by primary production, <strong>the</strong> energy flow <strong>of</strong> <strong>the</strong> system shows<br />

that <strong>the</strong> efficiency <strong>of</strong> secondary production (kg LW/ha) in relation to PAR was<br />

0.009 percent with an FO <strong>of</strong> 4.0 percent LW, increased to 0.015 percent at an<br />

FO <strong>of</strong> 8.0 percent LW, peaked at 0.017 percent at an FO <strong>of</strong> 12.0 percent LW,<br />

<strong>and</strong> <strong>the</strong>n decreased in <strong>the</strong> FO <strong>of</strong> 16.0 percent LW treatment. Increasing FO<br />

increases <strong>the</strong> amount <strong>of</strong> dead material in <strong>the</strong> sward pr<strong>of</strong>ile, which is wrongly<br />

considered as a forage component <strong>of</strong> pasture biomass (Maraschin, 1996). This<br />

is an important issue in animal-plant relationships, which has to be better<br />

understood, as it relates to quality expression <strong>and</strong> global yield <strong>of</strong> grassl<strong>and</strong>s.<br />

This dry matter plays an important role in nutrient recycling in ecologically<br />

managed natural ecosystems , promotes moisture retention capacity <strong>of</strong> soils <strong>and</strong><br />

conservation <strong>of</strong> soil, flora <strong>and</strong> fauna.<br />

Optimizing animal production from natural grassl<strong>and</strong> ecosystems<br />

The amount <strong>and</strong> botanical composition <strong>of</strong> available forage determines <strong>the</strong><br />

sustainable animal production level (Moraes, Maraschin <strong>and</strong> Nabinger, 1995),<br />

which depends on forage on <strong>of</strong>fer for a specific animal class (Maraschin, 1996).<br />

Firstly, it is necessary to know how much forage is available to feed <strong>the</strong> stock<br />

properly in relation to <strong>the</strong>ir biological functions. Knowledge developed by <strong>the</strong><br />

Forage Plants <strong>and</strong> Agrometeorology Department <strong>of</strong> <strong>the</strong> Federal University <strong>of</strong><br />

Rio Gr<strong>and</strong>e del Sul (UFRGS) on forage transformation into animal products<br />

allowed <strong>the</strong> natural grassl<strong>and</strong> heritage to be rescued <strong>and</strong> production raised to a<br />

level not seen before, due to better underst<strong>and</strong>ing <strong>of</strong> soil-plant-animal relationships.<br />

Seasonality <strong>of</strong> forage production reflects <strong>the</strong> favourable environment,<br />

with rainfall well distributed throughout <strong>the</strong> year. Grassl<strong>and</strong> growth is different<br />

in <strong>the</strong> cool season (40–30 percent <strong>of</strong> <strong>the</strong> year) <strong>and</strong> warm season (Moojen,<br />

1991). Fixed stocking may contribute to animal yield losses because <strong>of</strong> seasonal<br />

fluctuations, <strong>and</strong> may damage <strong>the</strong> grassl<strong>and</strong> ecosystem <strong>and</strong> increase farmers’<br />

vulnerability. Since true forage production is in <strong>the</strong> warm season, it is mainly<br />

in spring that animals gain weight, thus defining overall performance for <strong>the</strong><br />

year (Correa <strong>and</strong> Maraschin, 1994), because it is dependent on grassl<strong>and</strong> daily<br />

growth rate (Table 5.6) <strong>and</strong> forage availability (Setelich, 1994; Maraschin et al.,<br />

1997). If farmers do not make use <strong>of</strong> spring forage correctly, capitalizing it as<br />

animal products, <strong>the</strong>y will not be able to catch up in summer .<br />

FO levels determine sward pr<strong>of</strong>iles. With low FO (4.0 percent LW = high<br />

grazing pressure ), pasture seems uniform, like a low sward, <strong>and</strong> forage from<br />

new leaves has 8 percent <strong>of</strong> crude protein. Prostrate summer species pre-


196<br />

Figure 5.3<br />

Forage <strong>of</strong>fer (FO ) <strong>and</strong><br />

daily liveweight gain s<br />

per animal (DLWG )<br />

<strong>and</strong> per hectare (LW)<br />

<strong>and</strong> its effect on solar<br />

radiation conversion<br />

efficiency, on a natural<br />

grassl<strong>and</strong> <strong>of</strong> Rio<br />

Gr<strong>and</strong>e do Sul, Brazil .<br />

LW gain/ha (kg) [G]<br />

150<br />

140<br />

130<br />

120<br />

110<br />

100<br />

90<br />

80<br />

G/ha= - 17.9 + 29.2 OF - 1.3 OF 2<br />

1 006 1 444<br />

Forage remaining - kg DM/ha<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

70<br />

0.009 0.015 0.017 0.013<br />

0.1<br />

2 4 6 8 10 12 14 16 18<br />

Forage on <strong>of</strong>fer - % LW/day<br />

568<br />

GD= - 0.212 + 0.108 OF - 0.004 OF 2<br />

1 882<br />

dominate, with near disappearance <strong>of</strong> winter species <strong>and</strong> little contribution <strong>of</strong><br />

legumes, decrease in Andropogon lateralis , Aristida jubata <strong>and</strong> Eryngium horridum<br />

, <strong>and</strong> increased bare soil. Regrowth does not reflect its forage production<br />

<strong>and</strong> daily LWG is low. With an increase <strong>of</strong> FO to 8.0 percent LW, animals show<br />

better body condition but <strong>the</strong> grassl<strong>and</strong> is vulnerable, lacking protection for<br />

grazing-sensitive species.<br />

At medium <strong>and</strong> low grazing pressures (12.0 <strong>and</strong> 16.0 percent LW) <strong>and</strong><br />

higher FO , <strong>the</strong> grassl<strong>and</strong> showed greater height, with more bunchgrasses <strong>of</strong><br />

varying diameter. Winter species were more frequent <strong>and</strong> increased grassl<strong>and</strong><br />

quality, such as Stipa neesiana , Piptochaetium montevidense <strong>and</strong> Coelorachis<br />

selloana , besides native legumes, with an important presence <strong>of</strong> Desmodium<br />

incanum . Forage production <strong>and</strong> seed production <strong>of</strong> native legumes was<br />

only seen after 8–10 years <strong>of</strong> this grazing treatment. Under lighter stocking<br />

rates , animals graze more selectively <strong>and</strong> choose higher quality fractions <strong>of</strong><br />

available forage, leaving higher, less grazed plants. This contributes to maintaining<br />

higher leaf area <strong>and</strong> promotes faster regrowth after each defoliation<br />

under continuous grazing . With selective grazing, on lightly stocked swards,<br />

forage production is higher, as is <strong>the</strong> voluntary intake <strong>of</strong> <strong>the</strong> animals, which<br />

produced daily liveweight gain (DLWG ) <strong>of</strong> 0.500 kg per head (Figure 5.3).<br />

This DLWG would not be possible if one considers <strong>the</strong> average crude protein<br />

content s <strong>of</strong> <strong>the</strong> forage. The increased FO allows <strong>the</strong> animals to select a<br />

more nutritious diet than average; <strong>the</strong> animal is harvesting more because it is<br />

harvesting better.<br />

0.6<br />

0.5<br />

0.4<br />

0.3<br />

0.2<br />

Daily LW gain (kg) [GD]


The South American Campos ecosystem 197<br />

With increasing levels <strong>of</strong> FO , ground cover increases; as leaves increase in<br />

relation to stems, forage <strong>and</strong> animal production also increase. The PAR/SP<br />

[Secondary Production] relationship nearly doubles when FO changes from<br />

4.0 to 12.0 percent LW. Maximum LW is attained at lower stocking rates , which<br />

are exactly those that promote high DLWG , related to high AR <strong>and</strong> light grazing<br />

. The Primary Aerial Productivity (PAP):SP relationship had an efficiency<br />

<strong>of</strong> 4.48 percent with an FO <strong>of</strong> 4.0 percent, reaching 4.66 percent with an FO <strong>of</strong><br />

12.0 percent, as a consequence <strong>of</strong> increased DLWG . Lighter grazing pressures<br />

allow tall species to make important contributions to increase animal diet quality,<br />

<strong>and</strong> also protects native fauna.<br />

Optimal utilization ranges for natural grassl<strong>and</strong>s can be derived from a curvilinear<br />

response model , promoting productivity <strong>and</strong> ensuring sustainability ,<br />

which is attained by higher utilization efficiency <strong>of</strong> incident PAR (Table 5.6<br />

<strong>and</strong> Figure 5.3). Optimal utilization ranges are estimated from FOs <strong>of</strong> 13.5 percent<br />

<strong>of</strong> LW (maximum DLWG per head) to 11.5 percent <strong>of</strong> LW (maximum<br />

LW), where <strong>the</strong>re is compromise between individual <strong>and</strong> per-hectare production.<br />

As <strong>the</strong>re is considerable variation between <strong>the</strong> nutritional requirements<br />

<strong>of</strong> species <strong>and</strong> classes <strong>of</strong> animal (cow+calf, ewe+lamb, heifers, steers, bulls,<br />

horses, etc.) each pasture has to be managed according to <strong>the</strong> specific animal<br />

class requirements. Stocking rate <strong>and</strong> carrying capacity can only be defined as<br />

a function <strong>of</strong> <strong>the</strong> animal product involved <strong>and</strong> cannot be fixed, because <strong>the</strong>y<br />

depend on environmental variations.<br />

Table 5.7 can be prepared as a function derived from <strong>the</strong> grassl<strong>and</strong> optimization<br />

model , which reflects natural grassl<strong>and</strong> grazing optimization <strong>and</strong> <strong>the</strong><br />

stocking rate that this pasture could feed at optimal carrying capacity . In <strong>the</strong><br />

warm season – a nearly 200-day grazing period for natural grassl<strong>and</strong> – <strong>the</strong>se<br />

results adjust to <strong>the</strong> animal product yield equation in <strong>the</strong> following way:<br />

Yield = Quality × Quantity<br />

Liveweight/ha (LW) = DLWG × Animal-day/ha<br />

146 kg = 0.517 kg × 282<br />

Forage harvest from natural grassl<strong>and</strong>s could be improved , representing an<br />

annual increase <strong>of</strong> 784 000 t live weight, without cost, in Rio Gr<strong>and</strong>e do Sul<br />

alone through <strong>the</strong> recommended strategy <strong>of</strong> high FO to <strong>the</strong> grazing animal,<br />

TABLE 5.7<br />

Natural grassl<strong>and</strong> <strong>and</strong> animal performance in <strong>the</strong> optimal utilization range.<br />

Parameters Responses<br />

DM/ha/day (kg) 16.30 (evaluated)<br />

Animal-day/ha 282 (counted)<br />

Daily LWG (kg) 0.517 (evaluated)<br />

Liveweight gain /ha (kg) 146 (calculated)<br />

Carrying capacity 1.17 two-year-old steers (calculated)<br />

Stocking rate (kg/ha) 370 (observed)


198<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

which also optimizes forage accumulation rates in <strong>the</strong> pasture . This approach<br />

is exp<strong>and</strong>ing opportunities in sou<strong>the</strong>rn Brazil .<br />

Natural grassl<strong>and</strong> dynamics<br />

The natural grassl<strong>and</strong>s <strong>of</strong> sou<strong>the</strong>rn Brazil evolved without <strong>the</strong> presence <strong>of</strong><br />

large herbivores, <strong>and</strong> were altered by <strong>the</strong> introduction <strong>of</strong> livestock at <strong>the</strong><br />

beginning <strong>of</strong> colonization, changing from a climax condition to a productive<br />

disclimax with a range <strong>of</strong> growth habits <strong>and</strong> life forms. Knowledge <strong>of</strong><br />

grassl<strong>and</strong> ecology became important when <strong>the</strong> value <strong>of</strong> natural grassl<strong>and</strong> was<br />

acknowledged in parallel with <strong>the</strong> need for controlling grazing -induced l<strong>and</strong><br />

degradation . Boldrini (1993) studied vegetation cover variations as part <strong>of</strong><br />

<strong>the</strong> long-term grazing experiment described earlier, <strong>and</strong> <strong>the</strong>n verified that soil<br />

type has a greater influence on botanical composition than FO levels. Erect<br />

plants were more sensitive to defoliation than prostrate ones, because leaf<br />

tissues <strong>and</strong> growing buds are more exposed to grazing. With lighter grazing,<br />

<strong>the</strong>y stood above <strong>the</strong> sward canopy <strong>and</strong> dominated prostrate species.<br />

Some important natural grassl<strong>and</strong> species were selected to evaluate vegetation<br />

dynamics : Paspalum notatum is <strong>the</strong> one with greatest presence <strong>and</strong><br />

contribution. Like P. paucifolium , it is a rhizomatous species, <strong>and</strong> <strong>the</strong>y are<br />

both pioneers in more eroded <strong>and</strong> leached areas, with higher cover in FOs<br />

<strong>of</strong> 4.0 <strong>and</strong> 12.0 percent <strong>of</strong> LW. Andropogon lateralis benefits from high soil<br />

moisture levels, but is very sensitive to increases in grazing pressure . Its frequency<br />

decreases drastically with low FO (from 2.4 to 4.5 percent <strong>of</strong> LW)<br />

but it remains stable under optimal stocking <strong>and</strong> <strong>of</strong>fers protection to o<strong>the</strong>r<br />

highly palatable grasses, allowing <strong>the</strong>m to reseed. Axonopus affinis , with long<br />

stolons, thrives in damp areas <strong>of</strong> low fertility <strong>and</strong> benefits from high intensity<br />

grazing under low-FO treatments. Aristida filifolia is adapted to drier soils<br />

<strong>and</strong> is favoured by low grazing pressures, where it remains stable. Paspalum<br />

plicatulum shows lignification at <strong>the</strong> base <strong>of</strong> <strong>the</strong> leaf blades, but still it is well<br />

accepted <strong>and</strong> consumed by animals <strong>and</strong> damaged by heavy grazing under low<br />

FO. It seems to benefit from light grazing <strong>and</strong> showed marked increases in<br />

density <strong>and</strong> cover after two or three years <strong>of</strong> light grazing. It benefits from<br />

<strong>the</strong> shelter <strong>of</strong> more vigorous vegetation <strong>and</strong> so produces seeds <strong>and</strong> increases<br />

in <strong>the</strong> grassl<strong>and</strong>. Piptochaetium montevidense , which is important because it<br />

grows more in winter –spring , shows higher cover on hillsides <strong>and</strong> seems to<br />

suffer from competition in more humid niches, but tends to persist in less<br />

dense swards. Ano<strong>the</strong>r important plant is <strong>the</strong> legume Desmodium incanum ,<br />

which presents higher cover values under light spring grazing pressure <strong>and</strong><br />

with <strong>the</strong> aid <strong>of</strong> protective species. It shows ecological versatility in <strong>the</strong> face<br />

<strong>of</strong> competition, <strong>and</strong> flowers <strong>and</strong> produce seeds, generating viable plants to<br />

increase <strong>the</strong> population.<br />

In a study where FO levels were associated with soil fertility <strong>and</strong> deferred<br />

grazing (Gomes, 1996), <strong>the</strong> prostrate species Paspalum notatum was more


The South American Campos ecosystem 199<br />

frequent on heavily grazed treatments, whereas <strong>the</strong> caespitose species<br />

Andropogon selloanus <strong>and</strong> Elionurus c<strong>and</strong>idus were commoner on lightly <strong>and</strong><br />

very lightly grazed paddocks. Plant groups that are independent <strong>of</strong> growth<br />

habit, such as Paspalum paucifolium , Eragrostis neesii <strong>and</strong> Eryngium ciliatum ,<br />

occurred on drier sites, while Andropogon lateralis , Eryngium horridum ,<br />

E. elegans , Schizachyrium microstachyum <strong>and</strong> Baccharis trimera occurred on<br />

sites with higher soil moisture levels, <strong>and</strong> were also sensitive to heavy grazing<br />

.<br />

An interesting issue was <strong>the</strong> tolerance <strong>of</strong> heavy grazing shown by<br />

Coelorachis selloana <strong>and</strong> Piptochaetium montevidense , both low growing<br />

with buds close to <strong>the</strong> soil. However, when FO is higher <strong>the</strong>y grow along<br />

with <strong>the</strong> height <strong>of</strong> <strong>the</strong> sward pr<strong>of</strong>ile <strong>and</strong> remain as contributors to DM<br />

production. The ability to adapt growth habit is also seen in <strong>the</strong> native<br />

legume Desmodium incanum : it remains prostrate under heavy grazing,<br />

but its branches rise to sward height when grazing is reduced. The legumes<br />

Aeschynomene falcata , Chamaecrista repens , Stylosan<strong>the</strong>s leiocarpa , Trifolium<br />

polymorphum <strong>and</strong> Zornia reticulata are associated with higher utilization<br />

intensities, but need resting periods. Non-limiting FO management practices<br />

on natural grassl<strong>and</strong>s seem to be an ecologically efficient procedure to restore<br />

<strong>and</strong> maintain grassl<strong>and</strong> productivity in a sustainable manner.<br />

FERTILIZING CAMPOS GRASSLAND<br />

Fertilization in Argentina<br />

In <strong>the</strong> past 30 years <strong>the</strong> Mercedes Research Station has evaluated <strong>the</strong> effects<br />

<strong>of</strong> fertilizing natural grassl<strong>and</strong>s on animal production in <strong>the</strong> Rocky Outcrops<br />

region. Large increases in stocking rate , liveweight gain per animal <strong>and</strong><br />

annual beef production per unit area have been registered in all trials. The<br />

first study showed that, with NPK fertilization , animal production increases<br />

yearly, reaching 210 kg LW/ha/year by <strong>the</strong> third year, which represented a<br />

138 percent increase over <strong>the</strong> control (Royo Pallarés <strong>and</strong> Mufarrege, 1970).<br />

Subsequently, different N levels were applied to natural grassl<strong>and</strong> , which<br />

raised animal production in <strong>the</strong> third year to 254 kg LW/ha/year at 120 kg N/<br />

ha/year (Mufarrege, Royo Pallares <strong>and</strong> Ocampo, 1981).<br />

Phosphorus fertilization was evaluated for 11 years at <strong>the</strong> Estancia Rincón<br />

de Yeguas. Average animal production on fertilized paddocks was 40 percent<br />

higher, for <strong>the</strong> three stocking rates evaluated, with production levels that<br />

rose to 188 kg LW/ha/year (Benitez, unpublished). In ano<strong>the</strong>r eight-year<br />

fertilization <strong>and</strong> stocking rate trial by Mercedes Research Station, production<br />

reached 176 kg LW/ha/year at <strong>the</strong> higher stocking rate. The increase in total<br />

animal production at <strong>the</strong> same individual performance level was 76 percent<br />

(Royo Pallarés et al., 1998). Observed effects <strong>of</strong> phosphorus fertilization on<br />

grassl<strong>and</strong>s are increased forage production, a large increase in <strong>the</strong> phosphorus<br />

content <strong>of</strong> <strong>the</strong> forage <strong>and</strong> increased legume cover.


200<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Fertilization <strong>of</strong> Campos <strong>Grassl<strong>and</strong>s</strong> in Uruguay<br />

The reduced winter growth <strong>of</strong> natural grassl<strong>and</strong>s due to P <strong>and</strong> N deficiencies<br />

in most <strong>of</strong> <strong>the</strong> soils <strong>of</strong> <strong>the</strong> region led to <strong>the</strong> use <strong>of</strong> inorganic nitrogen <strong>and</strong> to<br />

legume introduction with phosphatic fertilization to foster establishment<br />

<strong>and</strong> production. Phosphatic fertilization alone has little impact on botanical<br />

composition <strong>and</strong> production increases are low (less than 15 percent) because <strong>of</strong><br />

<strong>the</strong> low frequency <strong>of</strong> native legumes.<br />

The use <strong>of</strong> relatively low doses <strong>of</strong> N <strong>and</strong> P2O5 (90 kg N/ha/year;<br />

44 kg P2O5 ha/year) favours an increase in <strong>the</strong> fertility level <strong>of</strong> <strong>the</strong> soil, especially<br />

if <strong>the</strong> fertilizer is split: <strong>the</strong> first dose at <strong>the</strong> beginning <strong>of</strong> <strong>the</strong> autumn <strong>and</strong><br />

<strong>the</strong> o<strong>the</strong>r at <strong>the</strong> end <strong>of</strong> <strong>the</strong> winter . This can only be done when relative frequency<br />

<strong>of</strong> winter forages in <strong>the</strong> total vegetation is above 20 percent. Autumn<br />

application promotes regrowth <strong>of</strong> winter grasses <strong>and</strong> extends <strong>the</strong> growth <strong>of</strong><br />

summer grasses into late autumn. Winter application favours longer growth<br />

<strong>of</strong> winter species <strong>and</strong> earlier regrowth <strong>of</strong> summer ones (Bemhaja, Berretta <strong>and</strong><br />

Brito, 1998).<br />

As <strong>the</strong> fertility level <strong>of</strong> <strong>the</strong> system increases, forage growth starts to stabilize<br />

at a level that is 60 percent higher than an unfertilized grassl<strong>and</strong> . The seasons<br />

in which fertilization can make significant improvements to livestock production<br />

are autumn <strong>and</strong> winter . Autumn daily forage growth is higher on fertilized<br />

grassl<strong>and</strong>s. To defer forage for winter feeding, autumn growth should be sufficient<br />

to accumulate more than 1 000 kg DM/ha, plus <strong>the</strong> available forage prior<br />

to deferment or stocking rate reduction. Fertilized grassl<strong>and</strong>s show 100 percent<br />

increments in daily forage growth rates during winter, compared with unfertilized<br />

grassl<strong>and</strong>s (Figure 5.4).<br />

kg DM/ha/day<br />

18<br />

16<br />

14<br />

12<br />

10<br />

8<br />

6<br />

4<br />

2<br />

0<br />

1996 1997 1998 1999 2000 2001<br />

Campo Campo +NP<br />

Figure 5.4<br />

Winter daily forage growth rate (kg DM/ha/day) <strong>of</strong> unfertilized <strong>and</strong> N+P<br />

fertilized natural grassl<strong>and</strong>s.


The South American Campos ecosystem 201<br />

kg/ha<br />

250<br />

200<br />

150<br />

100<br />

50<br />

0<br />

CN - 0.9<br />

AU/ha<br />

CN+NP - CN+NP -<br />

0.9 AU/ha1.2<br />

AU/ha<br />

kg/head/day<br />

0.5<br />

0.4<br />

0.3<br />

0.2<br />

0.1<br />

Production (kg LW/ha) DG (kg/head/day)<br />

0<br />

Figure 5.5<br />

Daily liveweight gain (kg/head/day)<br />

<strong>and</strong> beef production (kg liveweight/<br />

ha) on natural grassl<strong>and</strong>s with<br />

rotational grazing stocked at 0.9 AU/<br />

ha, <strong>and</strong> on fertilized natural grassl<strong>and</strong><br />

with rotational grazing <strong>and</strong> stocking<br />

rates <strong>of</strong> 0.9 <strong>and</strong> 1.2 AU/ha.<br />

Spring forage growth for <strong>the</strong>se grassl<strong>and</strong>s exceeds 1 600 kg DM/ha, while<br />

unfertilized grassl<strong>and</strong>s produce about 1 000 kg DM/ha. Maximum registered<br />

daily forage growth rate without fertilization was 19 kg DM/ha/day, while<br />

fertilized grassl<strong>and</strong>s shown a maximum <strong>of</strong> 35 kg DM/ha/day. Summer growth<br />

is tightly tied to precipitation <strong>and</strong> <strong>the</strong>refore highly variable. Annual addition <strong>of</strong><br />

92 <strong>and</strong> 44 kg/ha <strong>of</strong> N <strong>and</strong> P, respectively, increased forage production, adding<br />

7.5 kg DM/kg nutrient in <strong>the</strong> first year <strong>and</strong> about 24.0 kg DM/kg nutrient in<br />

subsequent years.<br />

Nitrogen <strong>and</strong> phosphorus content in <strong>the</strong> forage is always higher in fertilized<br />

grassl<strong>and</strong>s. In natural grassl<strong>and</strong>s, <strong>the</strong> highest N <strong>and</strong> P values occur in<br />

winter <strong>and</strong> spring , <strong>and</strong> <strong>the</strong> lowest are in summer , when forage is mature <strong>and</strong>,<br />

as usual, <strong>the</strong>re is a moisture deficit (Berretta, 1998). In winter, N content <strong>of</strong><br />

forage reaches 2.3 percent, while unfertilized grassl<strong>and</strong>s reach 1.7 percent; in<br />

spring <strong>the</strong> values are 2.8 <strong>and</strong> 1.9 percent, respectively. In summer, N contents<br />

decreases to 1.4 <strong>and</strong> 1.1 percent, respectively. Taking winter as an example,<br />

natural grassl<strong>and</strong>s produce about 38 kg/ha <strong>of</strong> crude protein (CP), while fertilized<br />

grassl<strong>and</strong>s produce about 95 kg CP/ha. Forage P content during winter<br />

<strong>and</strong> spring is about 2.3 mg P/g DM with fertilizer <strong>and</strong> 1.8 mg P/g DM without<br />

fertilizer (Berretta et al., 1998). The values are 1.9 <strong>and</strong> 1.5 mg P/g DM, in summer<br />

<strong>and</strong> 1.5 <strong>and</strong> 2.2 mg P/g DM in autumn , respectively.<br />

Throughout <strong>the</strong> year, <strong>the</strong> relative frequency <strong>of</strong> winter grasses is higher in<br />

fertilized grassl<strong>and</strong> . The increase in <strong>the</strong> C3 grasses is related to nutrient input,<br />

which raises <strong>the</strong> fertility level <strong>of</strong> <strong>the</strong> soil. Fertilization is a way <strong>of</strong> changing <strong>the</strong><br />

botanical composition <strong>of</strong> grassl<strong>and</strong>s <strong>and</strong> consequently to increase winter forage<br />

production.<br />

Winter-productive species such as Stipa neesiana , Piptochaetium stipoides ,<br />

Poa lanigera <strong>and</strong> Adesmia bicolor tend to increase <strong>the</strong>ir cover with fertilization<br />

. Summer grasses such as Paspalum notatum <strong>and</strong> P. dilatatum also increase


202<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>the</strong>ir cover. Ordinary grasses, such as Bothriochloa laguroides <strong>and</strong> Andropogon<br />

ternatus , decrease <strong>and</strong> Schizachyrium spicatum becomes less frequent than <strong>the</strong><br />

o<strong>the</strong>rs following fertilization, as it is most competitive in a poor environment.<br />

Paspalum plicatulum also decreases with fertilization, although this may be<br />

linked to a palatability increase, as its leaves keep green for longer than unfertilized<br />

grassl<strong>and</strong> . Native legumes increase in frequency, reaching values close to<br />

5 percent. Weeds, typically Baccharis coridifolia , B. trimera <strong>and</strong> Heimia sp., are<br />

scarce <strong>and</strong> do not increase with fertilization.<br />

Fertilized grassl<strong>and</strong>s managed under rotational grazing provided <strong>the</strong> highest<br />

beef production per unit area when stocked with 1.2 AU/ha, <strong>and</strong> <strong>the</strong><br />

highest liveweight gain s per animal at <strong>the</strong> lower stocking rate <strong>of</strong> 0.9 AU/ha<br />

(Figure 5.5). At lower stocking rates on fertilized grassl<strong>and</strong>s, steers grew to<br />

440 kg liveweight at 2.5 years, while at <strong>the</strong> higher stocking rate <strong>the</strong>y did not<br />

exceed 400 kg.<br />

Results can be quite different if <strong>the</strong> grassl<strong>and</strong> has a high proportion <strong>of</strong><br />

summer species <strong>and</strong> <strong>the</strong> winter species are mainly annuals, like <strong>the</strong> soils <strong>of</strong> <strong>the</strong><br />

Crystalline <strong>and</strong> Eastern Hills. Fertilization at <strong>the</strong> start <strong>of</strong> <strong>the</strong> winter favours<br />

<strong>the</strong> presence <strong>of</strong> winter annual grasses such as Vulpia australis <strong>and</strong> Gaudinia<br />

fragilis , which have limited productive potential at <strong>the</strong> end <strong>of</strong> <strong>the</strong> season. The<br />

disappearance <strong>of</strong> <strong>the</strong>se species as <strong>the</strong>y finish <strong>the</strong>ir growth cycle leaves spaces<br />

that can be occupied by undesirable plants. Spring fertilization increases forage<br />

growth at <strong>the</strong> end <strong>of</strong> <strong>the</strong> summer, when summer grasses flower <strong>and</strong> produce<br />

seeds. Organic matter digestibility <strong>of</strong> fertilized forage was greater than unfertilized<br />

grassl<strong>and</strong> (Formoso, pers. comm.). N fertilization increases spring <strong>and</strong><br />

summer production markedly, but has little effect on winter growth. This<br />

nutrient increases <strong>the</strong> frequency <strong>of</strong> annuals <strong>and</strong> decreases perennials (Ayala et<br />

al., 1999). N+P fertilization produces a threefold increase in beef production in<br />

comparison with untreated natural grassl<strong>and</strong>.<br />

Fertilization <strong>of</strong> natural grassl<strong>and</strong>s in sou<strong>the</strong>ast Brazil<br />

The quality <strong>and</strong> production potential <strong>of</strong> natural grassl<strong>and</strong>s were always<br />

considered to be limited. There was uncertainty about <strong>the</strong>ir responses until<br />

Scholl, Lobato <strong>and</strong> Barreto (1976) showed forage production increases on<br />

natural grassl<strong>and</strong> with N applications in summer , <strong>and</strong> Barcellos et al. (1980)<br />

obtained significant responses <strong>of</strong> natural grassl<strong>and</strong> to high P fertilizer rates .<br />

After <strong>the</strong> results <strong>of</strong> Rosito <strong>and</strong> Maraschin (1985) on secondary succession on<br />

fertilized grassl<strong>and</strong>s, a new scenario was clear for sou<strong>the</strong>rn Brazil , with animal<br />

production results in <strong>the</strong> Central Depression (Perin <strong>and</strong> Maraschin, 1995)<br />

similar to those obtained in Campaña fields (Barcellos et al., 1980). On poor<br />

soils <strong>of</strong> <strong>the</strong> Central Depression <strong>of</strong> Rio Gr<strong>and</strong>e del Sul (30°S), blanket application<br />

<strong>of</strong> lime <strong>and</strong> fertilizers (Moojen, 1991) evaluated five years later (Gomes, 1996)<br />

showed a rise <strong>of</strong> pH <strong>and</strong> reduction in Al +++ , while calcium, magnesium <strong>and</strong><br />

phosphorus contents <strong>of</strong> <strong>the</strong> upper 7.5 cm <strong>of</strong> <strong>the</strong> soil increased. Organic matter


The South American Campos ecosystem 203<br />

content <strong>of</strong> this horizon also increased with fertilizer increase, in <strong>the</strong> same way<br />

as deferment accumulation, which increased <strong>the</strong> litter content in <strong>the</strong> pastures.<br />

From <strong>the</strong> beginning <strong>of</strong> this study, Desmodium incamun responded rapidly to<br />

increasing fertilizer levels, rising to 12.5 percent (Moojen, 1991) <strong>and</strong> reaching<br />

close to 24.4 percent <strong>of</strong> contribution to total DM <strong>of</strong> <strong>the</strong> natural grassl<strong>and</strong> five<br />

years later (Gomes, 1996).<br />

Residual effects <strong>of</strong> fertilizers reduced <strong>the</strong> number <strong>of</strong> species, from 137 species<br />

noted by Moojen, (1991) to 122 recorded by Gomes (1996); this was attributed<br />

to better conditions <strong>of</strong>fered to species that were formerly limited by low soil<br />

fertility. These species become dominant, modifying <strong>the</strong> flora. The presence<br />

<strong>and</strong> contribution <strong>of</strong> Paspalum dilatatum , P. maculosum , P. pauciciliatum <strong>and</strong><br />

P. urvillei was noted, yet <strong>the</strong>se desirable grasses were not mentioned in <strong>the</strong><br />

report <strong>of</strong> Moojen (1991). There was also development <strong>of</strong> <strong>the</strong> legume Trifolium<br />

polymorphum . Ano<strong>the</strong>r important observation reported by Gomes (1996)<br />

was <strong>the</strong> increased frequency <strong>of</strong> Desmodium incanum , Agrostis montevidense,<br />

Coelorachis selloana , Paspalum notatum , Sporobolus indicus <strong>and</strong> Stipa spp.<br />

when more than 250 kg/ha <strong>of</strong> P2O5, were applied; <strong>the</strong> species also increased<br />

<strong>the</strong>ir contribution to DM production <strong>of</strong> grassl<strong>and</strong>s. Elionurus c<strong>and</strong>idus ,<br />

Aristida spp. <strong>and</strong> dead material were less. When fertilization rates were below<br />

250 kg P2O5/ha, Paspalum plicatulum , Piptochaetium montevidense <strong>and</strong><br />

Axonopus affinis increased <strong>the</strong>ir presence <strong>and</strong> made some contribution to DM<br />

production, while Andropogon lateralis , Elionurus c<strong>and</strong>idus <strong>and</strong> Piptochaetium<br />

montevidense were intermediate contributors.<br />

With blanket N+P fertilization <strong>of</strong> natural grassl<strong>and</strong> , Moojen (1991) <strong>and</strong><br />

Gomes (1996) raised forage production to 7.0 t DM/ha. Subsequently, through<br />

increasing N <strong>and</strong> avoiding moisture stress, Costa (1997) reported 12.0 t DM/ha<br />

<strong>and</strong> derived <strong>the</strong> following DM production model for unit area (m 2 ) per day <strong>of</strong><br />

Paspalum notatum :<br />

DM = 0.44. Rs (1 exp(-0.0031. ST)) + R<br />

where Rs is global solar radiation, ST is <strong>the</strong>rmal addition <strong>and</strong> R is green residual<br />

DM. Following this model , Boggiano (2000) obtained 18.0 t/ha <strong>of</strong> total DM,<br />

including stolons <strong>and</strong> roots to 8 cm deep, on a natural grassl<strong>and</strong> dominated by<br />

P. notatum . Liveweight gain per hectare was 700 kg in 200 grazing days, under<br />

continuous stocking. This response removed suspicions about limited growth<br />

potential <strong>of</strong> natural grassl<strong>and</strong>s, creating expectations for this natural resource.<br />

Structural changes on fertilized natural grassl<strong>and</strong>s in SE Brazil<br />

As research programmes evolved, fertilizer studies on natural grassl<strong>and</strong> were<br />

extended to consider different fodder <strong>of</strong>fers <strong>and</strong> N fertilization levels applied<br />

in a Composite Central Rotation with Uniform Precision experimental<br />

design, using three-day spells <strong>of</strong> grazing on a grazing cycle <strong>of</strong> 38 days. This<br />

study exposed a lack <strong>of</strong> knowledge about N fertilization responses <strong>of</strong> natural<br />

grassl<strong>and</strong>s. Nitrogen action was reliable on some important species, such as


204<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Paspalum notatum . Following Lemaire (1997), DM production <strong>of</strong> vegetative<br />

grassl<strong>and</strong>s depends mainly on three morphogenic variables: Leaf Appearance<br />

Rate (LAR ), Leaf Expansion Rate (LER ) <strong>and</strong> Leaf Life Span (LLS ). These<br />

variables are genetically defined, but modified by environmental factors. The<br />

combination <strong>of</strong> <strong>the</strong>se variables determines <strong>the</strong> structural characteristics <strong>of</strong> <strong>the</strong><br />

grassl<strong>and</strong>, such as tiller density, leaf size <strong>and</strong> number <strong>of</strong> leaves per tiller, <strong>and</strong> <strong>the</strong><br />

integral outcome gives <strong>the</strong> Leaf Area Index (LAI ). Boggiano (2000) verified<br />

that LER <strong>and</strong> <strong>the</strong> number <strong>and</strong> size <strong>of</strong> leaves <strong>and</strong> tillers were very sensitive<br />

to N effects <strong>and</strong> defoliation management , leading to different recovery rates<br />

<strong>of</strong> Paspalum notatum after grazing. LAR was 5.5–7.0 days, influenced by N<br />

<strong>and</strong> FO , suggesting that lighter grazing increases sheath length, <strong>the</strong> expansion<br />

period <strong>and</strong> <strong>the</strong> size <strong>of</strong> new leaves. With low N applications, <strong>the</strong>re is an increase<br />

in <strong>the</strong> number <strong>of</strong> small leaves <strong>and</strong> a longer LLS . Average LLS varied from 21<br />

to 31 days, increasing with FO <strong>and</strong> with reducing N. It was evident that LAR<br />

<strong>and</strong> tiller density increase with higher defoliation intensities.<br />

Tiller density depends on LAR <strong>and</strong> increases with lower FO , which<br />

provoke higher grazing frequency (more defoliations). At <strong>the</strong> same time, N<br />

increases LAR <strong>and</strong> stimulates higher tiller densities under lower FO, while<br />

contributing to low tiller number in high FO conditions, where defoliations<br />

are less frequent. N × FO interaction alters compensatory relationships, with<br />

a trend towards higher tiller density on high N–low FO swards. N reduction<br />

decreases tiller density <strong>and</strong> increasing N raises <strong>the</strong> weight per tiller. This gives<br />

us <strong>the</strong> parameters for an area covered by Paspalum notatum , modelling a compact<br />

sward with low production. It differs from a productive grazing pasture ,<br />

with fewer, bigger tillers, in a higher sward pr<strong>of</strong>ile that ensures high DM accumulation<br />

rates <strong>and</strong> it is more favourable for animal production.<br />

Average final length <strong>of</strong> <strong>the</strong> laminae is more dependent on previous defoliation<br />

intensity (residual LAI ) than on nitrogen supply. Bigger tillers have greater<br />

LER (Table 5.8). It seems to be desirable to promote management practices<br />

that promote larger tillers. LAI is <strong>the</strong> main factor determining interception <strong>of</strong><br />

incident solar radiation, which has direct effect on <strong>the</strong> DM accumulation rates<br />

TABLE 5.8<br />

Estimated LAI values for Paspalum notatum as a function <strong>of</strong> surface response models for residual<br />

LAI <strong>and</strong> after 33 days <strong>of</strong> regrowth (Boggiano, 2000).<br />

FO (percent <strong>of</strong> LW) N (kg/ha) LAI after grazing LAI after 33 days regrowth<br />

4.0 0 1.992 3.956<br />

4.0 100 1.555 4.093<br />

4.0 200 0.644 4.144<br />

9.0 0 0.962 2.536<br />

9.0 100 1.462 3.675<br />

9.0 200 1.614 5.924<br />

14.0 0 1.480 2.816<br />

14.0 100 3.045 6.153<br />

14.0 200 4.130 9.404<br />

SOURCE: Adapted from Boggiano, 2000.


The South American Campos ecosystem 205<br />

<strong>of</strong> grassl<strong>and</strong>s (Brougham, 1959; Parsons, Carrëre <strong>and</strong> Schwinning, 2000). For<br />

Paspalum notatum , responses to N <strong>and</strong> FO were observed reaching LAI values<br />

<strong>of</strong> 9.4, which is high for this kind <strong>of</strong> plant.<br />

With low N, <strong>the</strong> pasture is more prostrate <strong>and</strong> less exposed to animal defoliation.<br />

With increased FO , grazing is more selective, leaving more residues<br />

that contribute to regrowth. With frequent grazing <strong>and</strong> low N <strong>the</strong>re are smaller<br />

leaves with low LAI values, less light interception <strong>and</strong> lower DM production.<br />

Increasing N promotes faster LAI recovery, which in <strong>the</strong> higher FO promotes<br />

a faster regrowth start, with higher LAI at <strong>the</strong> end <strong>of</strong> <strong>the</strong> regrowth period.<br />

Therefore <strong>the</strong>re is higher radiation interception, higher carbon sequestration ,<br />

higher forage production <strong>and</strong> higher efficiency <strong>of</strong> applied N.<br />

Green DM <strong>of</strong> <strong>the</strong> grassl<strong>and</strong> is produced from <strong>the</strong> grazing stubble , which<br />

increases according to <strong>the</strong> net AR <strong>of</strong> <strong>the</strong> regrowth period, which is increased by<br />

<strong>the</strong> action <strong>of</strong> N. The effect <strong>of</strong> management has been well documented, because<br />

Boggiano (2000) observed available DM increases <strong>of</strong> 1 000 kg/ha for each 35<br />

days <strong>of</strong> regrowth, as this is <strong>the</strong> response to lighter grazing on fertilized grassl<strong>and</strong>s.<br />

The low LLS makes difficult to maintain high LAI values, while low FO ,<br />

with low LAI , consistently show less leaf length <strong>and</strong> less final length. Higher<br />

grazing intensity leads to reduced forage production, lower forage accessibility<br />

for grazing animals <strong>and</strong> consequently lower intake.<br />

In terms <strong>of</strong> plants <strong>and</strong> pastures, with low FO <strong>and</strong> poor N status, <strong>the</strong> priority<br />

is to accumulate dry matter in stolons <strong>and</strong> roots, preserving meristems <strong>and</strong><br />

increasing <strong>the</strong> proportion <strong>of</strong> stolons in total aerial biomass, so as to supply <strong>the</strong><br />

dem<strong>and</strong>s <strong>of</strong> <strong>the</strong> next growth period. At intermediate FO, stolon biomass is maximal<br />

<strong>and</strong> root biomass minimal. This topic requires more study. Stolons cannot<br />

be grazed, so Paspalum notatum <strong>and</strong> its biological forms show greater cover on<br />

grazed grassl<strong>and</strong> . Defoliation <strong>and</strong> shading alter <strong>the</strong> carbon supply to plants <strong>and</strong><br />

increase <strong>the</strong> proportion used for leaf production, while factors that reduce meristem<br />

activity (N, moisture) promote higher carbon accumulation in <strong>the</strong> roots<br />

(Lemaire, 1997). Careful use <strong>of</strong> N increases <strong>the</strong> capacity <strong>of</strong> natural grassl<strong>and</strong>s to<br />

sequestrate carbon from <strong>the</strong> atmosphere, storing it in permanent plant structures<br />

for growth, organ <strong>and</strong> tissue development , DM production, <strong>and</strong> consequently<br />

livestock feeding. Better performance tends to reduce methane emissions <strong>and</strong><br />

<strong>the</strong> litter that, with animal dejections, constitute <strong>the</strong> main source for renovation<br />

<strong>and</strong> increment <strong>of</strong> soil organic matter. This enrichment <strong>of</strong> <strong>the</strong> environment<br />

promotes favourable conditions for micr<strong>of</strong>auna, which form part <strong>of</strong> <strong>the</strong> fertility<br />

chain <strong>of</strong> predator fauna, hence contributing to environmental health, nutrient<br />

recycling <strong>and</strong> streng<strong>the</strong>ning <strong>of</strong> life expression in natural grassl<strong>and</strong>.<br />

IMPROVEMENT TECHNIQUES<br />

Over-seeding<br />

This technique for introducing valuable forages to <strong>the</strong> sward has been<br />

evaluated for a long time. Many forages, mainly winter legumes, have been


206<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

TABLE 5.9<br />

Winter performance <strong>and</strong> yearly liveweight gain for two treatments on natural grassl<strong>and</strong> .<br />

Treatment<br />

LWG winter<br />

period<br />

kg/day/head<br />

1997<br />

Year<br />

1998<br />

liveweight/ha/year<br />

1999<br />

P fertilization 0.615 151 219 267<br />

P fertilization + over-seeding 0.695 173 245 302<br />

tested <strong>and</strong> also seeding methods, previous grassl<strong>and</strong> management , fertilization<br />

levels, over-seeding, grazing management , etc. Rarely do <strong>the</strong> introduced species<br />

persist for more than three years due to strong competition from native species.<br />

Despite this, when some winter species become established, animal production<br />

increases are large. Higher productivity has been obtained recently in a threeyear<br />

grassl<strong>and</strong> improvement trial. Preliminary results <strong>of</strong> two treatments are<br />

shown in Table 5.9 (Pizzio, unpublished).<br />

The most interesting results from this trial are <strong>the</strong> excellent animal performance<br />

in winter , which exceeded 0.6 kg/day when normally <strong>the</strong>re is no gain at this<br />

season, <strong>and</strong> <strong>the</strong> year-on-year productivity increases.<br />

This experiment considered some factors not previously evaluated:<br />

(1) a higher level <strong>of</strong> phosphorus fertilization in comparison with previous<br />

research, which brought <strong>the</strong> phosphorus content in grass above 0.22 percent,<br />

which had not previously been recorded; (2) a sward structure that <strong>of</strong>fered a<br />

good quantity <strong>of</strong> green, easy-to-graze grass; <strong>and</strong> (3) a diverse <strong>and</strong> desirable<br />

botanical composition , that <strong>of</strong>fered good quality green feed in winter , with<br />

species such as red clover , Lotus cv. Rincón, ryegrass <strong>and</strong> oats. These factors,<br />

with o<strong>the</strong>rs, allowed <strong>the</strong> animals to harvest a large quantity <strong>of</strong> high quality<br />

<strong>of</strong> forage in <strong>the</strong> available grazing time, to attain performance similar to those<br />

from sown pastures.<br />

Legume introduction<br />

The need to improve <strong>the</strong> primary production <strong>and</strong> quality <strong>of</strong> Uruguayan<br />

grassl<strong>and</strong>s led to legume introduction using minimum- or no-tillage techniques,<br />

as a way to increase secondary production. Correcting soil P deficiencies is a<br />

crucial element in this process (Bemhaja <strong>and</strong> Levratto, 1988; Berretta <strong>and</strong><br />

Formoso, 1993; Berretta <strong>and</strong> Risso, 1995; Risso <strong>and</strong> Berretta, 1997; Bemhaja,<br />

1998). The study <strong>of</strong> anthropogenic factors provides an underst<strong>and</strong>ing <strong>of</strong><br />

various aspects <strong>of</strong> induced vegetation succession, which contributes to success<br />

in <strong>the</strong> application <strong>of</strong> <strong>the</strong> technology. To make a proper improvement in natural<br />

grassl<strong>and</strong>s, <strong>the</strong> following must be considered:<br />

• Vegetation sward as botanical composition defines <strong>the</strong> quality <strong>of</strong> <strong>the</strong> grassl<strong>and</strong> ,<br />

related to productive types , vegetative types <strong>and</strong> growing cycle.<br />

• Soil type , topography, stoniness, drought <strong>and</strong> erosion risks, drainage, etc.<br />

• Grazing objective for <strong>the</strong> improved paddock: cattle , sheep , fattening,<br />

weaning, etc.


The South American Campos ecosystem 207<br />

These factors influence <strong>the</strong> selection <strong>of</strong> forages to be introduced <strong>and</strong> <strong>the</strong><br />

way <strong>the</strong> seed will be in contact with <strong>the</strong> soil, for efficient moisture <strong>and</strong> nutrient<br />

supply to <strong>the</strong> seedling. The establishment, productivity <strong>and</strong> persistence <strong>of</strong><br />

introduced forages depends mainly on <strong>the</strong> way that competition from natural<br />

herbage is reduced, <strong>the</strong> quality <strong>of</strong> <strong>the</strong> seedbed <strong>and</strong> <strong>the</strong> adaptation <strong>of</strong> introduced<br />

species to <strong>the</strong> environment. Forage yield <strong>of</strong> improved pastures depends on<br />

soil type <strong>and</strong> botanical composition , <strong>and</strong> can be 50 to 100 percent higher than<br />

unimproved grassl<strong>and</strong>s, with winter yield up to three times higher (Berretta et<br />

al., 2000).<br />

Sward preparation for seeding<br />

Generally it is necessary to graze with cattle beforeh<strong>and</strong> to reduce tall-grasses<br />

<strong>and</strong> accumulated dead material. Stocking rates will depend on forage availability<br />

at <strong>the</strong> end <strong>of</strong> <strong>the</strong> spring <strong>and</strong> summer , but should be high. If <strong>the</strong> summer is wet,<br />

grass growth will be high <strong>and</strong> dry matter <strong>and</strong> seed stalks will remain at <strong>the</strong> end<br />

<strong>of</strong> <strong>the</strong> season, so stocking must be increased to eliminate this material. Sheep<br />

are used in <strong>the</strong> final stages, to reduce sward height to 2 cm. This grazing could<br />

be continuous , but rotational grazing is better to allow regrowth <strong>and</strong> regrazing;<br />

this reduces wild plant reserves , thus favouring <strong>the</strong> germination, emergence <strong>and</strong><br />

establishment <strong>of</strong> <strong>the</strong> introduced forages. Depending on grass growth, grazing<br />

must be done every 30–45 days. If grazing is alternated with resting, stocking<br />

rates must be much higher than with continuous grazing . Sward preparation<br />

aims to provide safe sites for good seed-soil contact. Generally it is very<br />

difficult to reduce vegetation cover below 50 percent, although sward height<br />

may be low. Some herbage at sowing time is, however, important to protect<br />

seeds from bad wea<strong>the</strong>r.<br />

Chemicals must be used carefully. Non-selective contact herbicides are preferred,<br />

to avoid reducing <strong>the</strong> growth capacity <strong>of</strong> native plants. When systemic<br />

herbicides are used, <strong>the</strong> dose must be low enough to preserve valuable native<br />

species (Berretta <strong>and</strong> Formoso, 1993).<br />

Legumes for improvement<br />

Many evaluations <strong>of</strong> different genera <strong>and</strong> species <strong>of</strong> legumes have been carried<br />

out. Recent studies include several species <strong>of</strong> Trifolium , Lotus , Medicago ,<br />

Ornithopus , Desmanthus , Vicia , etc. (Bemhaja, 1998). On medium <strong>and</strong> deep<br />

soils, <strong>the</strong> best forages tested have been white clover cvs Zapicán <strong>and</strong> Bayucuá,<br />

<strong>and</strong> Lotus corniculatus . Less reliable have been L. pedunculatus cv Maku,<br />

L. hispidus cv. El Rincón <strong>and</strong> red clover (Trifolium pratense ).<br />

Recommended seed rates are 4–5 kg/ha for white clover , 10–12 kg/ha for<br />

L. corniculatus , 2.5–3.5 kg/ha for L. pedunculatus cv Maku, 4–5 kg/ha for Lotus<br />

cv. El Rincón, 6–8 kg/ha for red clover , <strong>and</strong> for a mix <strong>of</strong> white clover <strong>and</strong> L. corniculatus,<br />

2–3 kg/ha <strong>of</strong> <strong>the</strong> former <strong>and</strong> 8–10 kg/ha <strong>of</strong> <strong>the</strong> latter are recommended<br />

(Risso, 1991; 1995; Risso <strong>and</strong> Morón, 1990).


208<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

TABLE 5.10<br />

Production <strong>of</strong> steers in rotational grazing on improved native grassl<strong>and</strong>s in different regions <strong>of</strong><br />

Uruguay .<br />

Soils<br />

Stocking rate<br />

(AU/ha)<br />

Liveweight gain<br />

(kg/ha)<br />

Individual performance<br />

(kg LW/head)<br />

Crystalline 1.55 533 406<br />

Medium <strong>and</strong> deep Basalt 1.85 680 485<br />

Hills 1.53 (1) 700 473<br />

NOTES: (1) Includes mixed grazing with we<strong>the</strong>rs in a ratio <strong>of</strong> two we<strong>the</strong>rs per steer.<br />

SOURCE: Adapted from Ayala <strong>and</strong> Carámbula, 1996; Bemhaja, Berretta <strong>and</strong> Brito, 1998; Risso <strong>and</strong> Berretta, 1997.<br />

This improvement technique is low-input <strong>and</strong> environmentally friendly,<br />

promotes sustainable development <strong>of</strong> native vegetation <strong>and</strong> improves productivity<br />

, accelerating fattening by means <strong>of</strong> better individual performance<br />

<strong>and</strong> higher stocking capacity (Table 5.10). These results were obtained in<br />

rotational grazing conditions, 5–8 paddocks, 7–12 grazing days <strong>and</strong> 30–40<br />

rest days, in grazing seasons <strong>of</strong> about 300 days (Berretta et al., 2000).<br />

Effect <strong>of</strong> legume introduction on composition <strong>of</strong> native grassl<strong>and</strong>s<br />

Once legumes have been established for some years, an important change<br />

is an increase <strong>of</strong> winter grasses (C3 ) (Berretta <strong>and</strong> Levratto, 1990; Bemhaja<br />

<strong>and</strong> Berretta, 1991). On similar unimproved grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> basalt region,<br />

summer species are always more frequent than winter ones (Formoso, 1990;<br />

Berretta, 1990). On improved grassl<strong>and</strong>s, <strong>the</strong> relative frequency <strong>of</strong> winter<br />

forage species is around 75 percent, with similar values for native grasses<br />

<strong>and</strong> introduced Trifolium repens . The increased frequency <strong>of</strong> better quality<br />

species raises <strong>the</strong> N content <strong>of</strong> <strong>the</strong> forage to 3.2 percent.<br />

Flowering <strong>and</strong> seed production are necessary to maintain introduced<br />

species in <strong>the</strong> pasture . This ensures regeneration <strong>the</strong> next autumn , since <strong>the</strong>y<br />

pass <strong>the</strong> summer partly as plants <strong>and</strong> partly as seeds (Berretta <strong>and</strong> Risso,<br />

1995). Reduction or total exclusion <strong>of</strong> grazing also favours seed production<br />

<strong>of</strong> native winter grasses, including Poa lanigera , Stipa setigera , Piptochaetium<br />

stipoides <strong>and</strong> Adesmia bicolor . Therefore conservation <strong>of</strong> <strong>the</strong>se species in<br />

native grassl<strong>and</strong>s is related both to rest periods to allow flowering <strong>and</strong> seed<br />

production, <strong>and</strong> to increased soil fertility. In many improved grassl<strong>and</strong>s, <strong>the</strong>re<br />

is a remarkable increase in <strong>the</strong> frequency <strong>of</strong> Lolium multiflorum , which has<br />

adapted, <strong>and</strong> in many cases is introduced <strong>and</strong> thrives with increased fertility.<br />

Legume introduction can have positive effects in more degraded grassl<strong>and</strong>s,<br />

dominated by unproductive or unpalatable grasses <strong>and</strong> short herbs. Relative<br />

legume frequency (Trifolium repens , Lotus corniculatus ) is about 60 percent.<br />

Native, productive winter grasses – Stipa neesiana <strong>and</strong> Piptochaetium<br />

stipoides – <strong>and</strong> naturalized species, such as Lolium multiflorum , increase<br />

in frequency, while unproductive grasses <strong>and</strong> herbs decrease (Berretta <strong>and</strong><br />

Risso, 1995; Risso <strong>and</strong> Berretta, 1997). Oversowing <strong>of</strong> perennial <strong>and</strong> annual<br />

legumes in C3 -dominated grassl<strong>and</strong>s that had a yearly forage production <strong>of</strong>


The South American Campos ecosystem 209<br />

3 400 kg DM/ha, increased forage production to 8 600 kg DM/ha (Ayala et<br />

al., 1999).<br />

Stock management<br />

Managing livestock is one <strong>of</strong> <strong>the</strong> most important options for farmers in<br />

improving <strong>the</strong> utilization efficiency <strong>of</strong> available forage <strong>and</strong> to increase its<br />

productivity . This low-cost technique is based on adapting <strong>the</strong> nutritional<br />

requirements <strong>of</strong> stock classes to <strong>the</strong> grassl<strong>and</strong> growth curve. Stock management<br />

involves short seasonal mating, early weaning, pregnancy diagnosis, stock<br />

classification according to nutritional requirements, <strong>and</strong> sales organization.<br />

An example <strong>of</strong> <strong>the</strong> impact <strong>of</strong> this technology is found in Curuzu Cuatiá<br />

Department. While <strong>the</strong> average liveweight gain for <strong>the</strong> Department is 56 kg/<br />

ha/year, twelve farms that adopted <strong>the</strong>se practices averaged 88 kg/ha/year<br />

over five years.<br />

Mineral supplementation<br />

Phosphorus deficiency in diets is one <strong>of</strong> <strong>the</strong> limiting factors for animal<br />

production in <strong>the</strong> region. Unsupplemented steers have a liveweight gain <strong>of</strong><br />

66 kg/year, while supplemented steers can gain 106 kg/year.<br />

O<strong>the</strong>r management practices<br />

O<strong>the</strong>r management practices that increase productivity include mowing <strong>of</strong><br />

tussock grassl<strong>and</strong>s, burning , autumn deferments for winter grazing , strategic<br />

rests for paddocks, energy-protein supplementation, <strong>and</strong> “protein banks”.<br />

RESEARCH AND DEVELOPMENT PRIORITIES<br />

Advances in knowledge over <strong>the</strong> last 35 years concerning <strong>the</strong> structure, function<br />

<strong>and</strong> management <strong>of</strong> natural grassl<strong>and</strong>s show that <strong>the</strong>re is great potential, at<br />

least in <strong>the</strong> Rocky Outcrops region. The next task should be to evaluate <strong>the</strong>se<br />

technologies in o<strong>the</strong>r ecological regions where this could be applicable. In<br />

regions such as <strong>the</strong> malezales , factors such as drainage <strong>and</strong> use <strong>of</strong> fire have to be<br />

studied before thinking <strong>of</strong> any fur<strong>the</strong>r improvement . The relationship between<br />

soil series, grass production <strong>and</strong> carrying capacity is an issue that has received<br />

little attention. Soil has a great effect on grassl<strong>and</strong> production <strong>and</strong> stability, but<br />

research has paid little attention to this topic.<br />

A task that has to be completed, validated <strong>and</strong> <strong>the</strong>n extended is paddock<br />

ranking . Managing natural grassl<strong>and</strong>s means to manage soil, vegetation<br />

<strong>and</strong> stock within <strong>the</strong> constraints <strong>of</strong> climate to get <strong>the</strong> best results from <strong>the</strong><br />

combination <strong>of</strong> factors. Each stock class has specific nutritional requirements;<br />

each paddock has different FO <strong>and</strong> potential. Today, <strong>the</strong> pastoral value <strong>of</strong> a<br />

paddock is subjectively evaluated. Methodology development is required to<br />

enable simple objective paddock ranking, <strong>and</strong> to match paddock FO with<br />

animal requirements.


210<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Research has focused on technology for increased production. Monitoring<br />

<strong>the</strong> effects <strong>of</strong> recommended technology with respect to biological <strong>and</strong><br />

economic sustainability has received little attention. The search for alternative<br />

production from grassl<strong>and</strong>s, such as agrotourism <strong>and</strong> game harvesting , would<br />

allow diversification <strong>of</strong> use <strong>of</strong> <strong>the</strong>se ecosystems . There is a need to find reliable<br />

sustainability indicators to allow us to ensure that recommended technologies<br />

are sustainable, so coming generations receive a better resource than we<br />

inherited.<br />

Ecological grassl<strong>and</strong> management for maintaining productivity<br />

Natural grassl<strong>and</strong>s are <strong>the</strong> main basis for meat <strong>and</strong> fibre production in <strong>the</strong><br />

region, <strong>and</strong> are also a huge reservoir <strong>of</strong> valuable grass <strong>and</strong> legume species, which<br />

it is necessary to select <strong>and</strong> screen under cultivation . Only with deep knowledge<br />

<strong>of</strong> <strong>the</strong> behaviour <strong>of</strong> native species will it be possible to conserve <strong>and</strong> improve <strong>the</strong><br />

natural grassl<strong>and</strong>s <strong>and</strong> protect <strong>the</strong> soil from erosion <strong>and</strong> degradation . Research<br />

in <strong>the</strong> region suggests that <strong>the</strong> potential <strong>of</strong> natural grassl<strong>and</strong>s is very high, close<br />

to cultivated pastures, with better persistence.<br />

Studies on natural grassl<strong>and</strong> dynamics with several management -controlled<br />

factors reflect ongoing changes that occur slowly, with seasonal variations more<br />

important than grazing effects. Over longer periods, high continuous grazing<br />

<strong>and</strong> a high sheep :cattle ratio encourages pasture degradation <strong>and</strong> lower primary<br />

production. Quite <strong>of</strong>ten, high stocking rates are maintained for economic<br />

<strong>and</strong> social reasons, but ultimately lead to poorer animal production. Higher<br />

stocking rates may increase short-term economic returns, but <strong>the</strong>y increase<br />

operational risks. Continuous <strong>and</strong> deeper studies <strong>of</strong> native grassl<strong>and</strong>s <strong>and</strong><br />

native forage species will increase underst<strong>and</strong>ing <strong>of</strong> <strong>the</strong> factors that promote<br />

high secondary productivity – meat <strong>and</strong> wool in this case – through primary<br />

production increases related to better use <strong>and</strong> conservation <strong>of</strong> forage.<br />

When stocking rates are adjusted to grassl<strong>and</strong> potential <strong>and</strong> grazing<br />

methods include rest periods, grassl<strong>and</strong>s can be maintained, with variations due<br />

to seasonal changes. These prairie ecosystems are highly stable <strong>and</strong> are capable<br />

<strong>of</strong> recovering after severe impacts, such as droughts .<br />

Spatial heterogeneity is high on most <strong>of</strong> <strong>the</strong> grassl<strong>and</strong>s, mainly due to soil<br />

type , combined with wea<strong>the</strong>r fluctuations <strong>and</strong> grazing management . Vegetation<br />

types must have management practices adjusted to <strong>the</strong> morphological <strong>and</strong><br />

physiological characteristics <strong>of</strong> <strong>the</strong> dominant species, so <strong>the</strong>y are better<br />

managed as independent units. When planning grazing systems , it is necessary<br />

to know precisely which species are present in <strong>the</strong> vegetation , concentrating<br />

on productive types, particularly when coarse ordinary grasses are dominant,<br />

because prolonged rests <strong>and</strong> low stocking rates may be beneficial. Determining<br />

a proper stocking rate that achieve animal performance objectives without<br />

ecosystem deterioration is <strong>the</strong> most important management decision. Each<br />

grassl<strong>and</strong> has a production potential that determines its carrying capacity. The


The South American Campos ecosystem 211<br />

main problem in developing an optimum stocking rate criterion is <strong>the</strong> need to<br />

preserve forage to be used when grass growth is limited by moisture stress or<br />

low temperatures.<br />

Liveweight gain s are highly variable, being a function <strong>of</strong> wea<strong>the</strong>r <strong>and</strong><br />

forage availability. When pastures have winter species, autumn deferment is<br />

recommended to supply forage for winter. When winter grasses are scarce,<br />

forage accumulation must be achieved in o<strong>the</strong>r periods because <strong>of</strong> fast declining<br />

forage quality in autumn; under conditions <strong>of</strong> low autumn growth <strong>and</strong> quality<br />

loss as <strong>the</strong> resting period extends, <strong>the</strong> accumulated forage is inadequate to<br />

supply animal requirements <strong>and</strong> provide <strong>the</strong> desired liveweight gains (Ayala<br />

et al., 1999).<br />

Inadequate grazing management – such as overgrazing , inadequate<br />

subdivision <strong>and</strong> continuous grazing – prevent flowering <strong>and</strong> seed production <strong>of</strong><br />

winter grasses, leaving reliance on vegetative mechanisms alone for persistence.<br />

This may be <strong>the</strong> main reason for decreased cover <strong>of</strong> winter grasses in natural<br />

grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> Campos .<br />

Raising <strong>the</strong> fertility level <strong>of</strong> <strong>the</strong> soil by means <strong>of</strong> N <strong>and</strong> P fertilization<br />

increases <strong>the</strong> production <strong>and</strong> quality <strong>of</strong> natural grassl<strong>and</strong> . The process is<br />

relatively slow, with increased responses as more nutrients are applied.<br />

Fertilization “disturbance” leads vegetation to a new equilibrium point, with<br />

botanical changes consisting <strong>of</strong> an increase in productive species frequency,<br />

<strong>and</strong> <strong>the</strong>refore increased secondary production. This technology complements<br />

grassl<strong>and</strong> improvement with legume introduction, as well as cultivation <strong>of</strong><br />

perennial <strong>and</strong> annual forages. Natural grassl<strong>and</strong> fertilization allows increased<br />

production <strong>and</strong> quality <strong>of</strong> vegetation on soils too shallow for more productive<br />

forages. At <strong>the</strong> same time, <strong>the</strong> residual benefits <strong>of</strong> N <strong>and</strong> P fertilization must<br />

also be considered.<br />

N <strong>and</strong> P additions, particularly <strong>the</strong> latter, should help to return to natural<br />

grassl<strong>and</strong> something that has been extracted during centuries <strong>of</strong> grazing , from<br />

livestock introduction at <strong>the</strong> beginning <strong>of</strong> <strong>the</strong> seventeenth century, besides<br />

its contribution to plant <strong>and</strong> animal biodiversity maintenance on natural<br />

grassl<strong>and</strong>s. It is important to conserve this natural resource without degrading<br />

it, maintaining an awareness <strong>of</strong> <strong>the</strong> economic, ecological <strong>and</strong> social aspects<br />

implicit in sustainable development .<br />

The introduction <strong>of</strong> legumes, coupled with fertilizing at sowing, yearly<br />

maintenance phosphorous dressings <strong>and</strong> grazing management , move vegetation ,<br />

in a slow biotic process, to a new equilibrium point where yield <strong>and</strong> quality<br />

are higher than <strong>the</strong> original. Grazing management <strong>and</strong> fertilization have<br />

to be closely controlled to maintain <strong>the</strong> pasture at this higher equilibrium<br />

point. The result should be a sward dominated by winter species, where high<br />

quality native perennial species are outst<strong>and</strong>ing. This is an alternative route<br />

to increasing annual primary production without using herbicides while<br />

conserving productive species <strong>of</strong> <strong>the</strong> natural grassl<strong>and</strong> .


212<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

It is necessary to improve <strong>the</strong> extension <strong>of</strong> available technologies <strong>and</strong> to<br />

promote <strong>the</strong> training <strong>of</strong> scientists specialized in management <strong>and</strong> conservation<br />

<strong>of</strong> natural grassl<strong>and</strong>s. This discipline does not exist in Uruguay , despite its main<br />

agricultural exports being based on natural grassl<strong>and</strong> outputs.<br />

Scientific knowledge has contributed to better natural grassl<strong>and</strong>s management<br />

practice, which has resulted in biological <strong>and</strong> economic benefits for<br />

farmer communities <strong>and</strong> society in <strong>the</strong> long term, with special care for animal<br />

<strong>and</strong> vegetation biodiversity <strong>and</strong> water conservation for <strong>the</strong> use <strong>of</strong> all living<br />

creatures. Plants <strong>and</strong> domestic animals will continue to provide <strong>the</strong> main food<br />

<strong>and</strong> fibre source <strong>of</strong> <strong>the</strong> world, conditioning our actions <strong>and</strong> behaviour to preserve<br />

natural resources for future generations.<br />

In 1943, Pr<strong>of</strong>essor Bernardo Rosengurtt wrote:<br />

“Let us conserve with infinite care <strong>the</strong> prairie heritage, simultaneously national <strong>and</strong> private, to<br />

transfer it whole to <strong>the</strong> coming generations.”<br />

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Gándara, F.R., Casco, J.F. Goldfarb, M.C., Correa, M. & Ar<strong>and</strong>a, M. 1989.<br />

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Maraschin, G.E. 1993. Perdas de forragem sob pastejo. pp. 166–190, in: V.<br />

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Argentina . Serie Técnica No. 5. 14 p.


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4(Suppl. 3): 71–74.


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 221<br />

Chapter 6<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America<br />

Rex D. Pieper<br />

SUMMARY<br />

At <strong>the</strong> time <strong>of</strong> colonial settlement <strong>the</strong>re was extensive grassl<strong>and</strong> from <strong>the</strong> prairies<br />

<strong>of</strong> Canada to <strong>the</strong> Gulf <strong>of</strong> Mexico on mainly level topography. Great Plains grassl<strong>and</strong><br />

is in three strips running north-south: tall-grass , mixed -grass <strong>and</strong> short-grass ,<br />

with <strong>the</strong> tall-grass in <strong>the</strong> better watered west. Precipitation increase from west to<br />

east (320 to 900 mm) is <strong>the</strong> main factor governing primary productivity ; periodic<br />

droughts occur. Bison, <strong>the</strong> dominant large herbivore until <strong>the</strong> mid-nineteenth<br />

century, have largely been replaced by cattle . About half <strong>of</strong> <strong>the</strong> beef cattle in <strong>the</strong><br />

United States <strong>of</strong> America are in <strong>the</strong> Great Plains. Woody vegetation types are<br />

embedded, with <strong>the</strong> trees varying according to latitude. C4 species comprise more<br />

than 80 percent from 30° to 42°N, while C3 species increase dramatically north <strong>of</strong><br />

42°N. Only 1 percent <strong>of</strong> <strong>the</strong> tall-grass remains; half <strong>of</strong> <strong>the</strong> short-grass is uncultivated;<br />

unproductive cropl<strong>and</strong> is being put back to grass. Cattle predominate;<br />

sheep are far fewer <strong>and</strong> declining. Most l<strong>and</strong> is privately owned, much in small<br />

farms . There is extensive ranching in dry areas. Grazing is seasonal, especially in<br />

<strong>the</strong> north with supplemental feed in winter . In favourable areas, sown pasture are<br />

used sometimes alongside range grazing . Rotational grazing is common, although<br />

research results on its advantage are mixed. Fire is used to suppress undesirable<br />

plants <strong>and</strong> increase fodder production. Grassl<strong>and</strong> monitoring includes long-term<br />

ecological research sites. Introduced plants can cause problems: Euphorbia esula<br />

is an aggressive weed <strong>and</strong> Bromus japonicus <strong>of</strong>ten competes with native grasses.<br />

Many small operations are no longer economically viable, so many are being<br />

ab<strong>and</strong>oned. Livestock enterprises should remain viable, although <strong>the</strong>y have to<br />

compete with systems based on forage grown under irrigation.<br />

INTRODUCTION<br />

When European settlers first moved into <strong>the</strong> central portion <strong>of</strong> what is now<br />

<strong>the</strong> United States <strong>of</strong> America (USA ), <strong>the</strong>y encountered an extensive , unbroken<br />

grassl<strong>and</strong> extending from <strong>the</strong> prairies <strong>of</strong> Canada to <strong>the</strong> Gulf <strong>of</strong> Mexico <strong>and</strong><br />

Mexico. While this grassl<strong>and</strong> was generally free from woody plants, apparently<br />

<strong>the</strong>re was a dynamic ecotone between <strong>the</strong> mountains <strong>and</strong> deserts to <strong>the</strong><br />

west <strong>and</strong> <strong>the</strong> eastern deciduous forests in central <strong>and</strong> nor<strong>the</strong>rn portions <strong>of</strong><br />

<strong>the</strong> grassl<strong>and</strong> (Bazzaz <strong>and</strong> Parrish, 1982; Gleason, 1913; Transeau, 1935). The<br />

general impression held by many observers was that conditions in this vast


222<br />

Figure 6.1<br />

The extent <strong>of</strong> grassl<strong>and</strong>s in North America.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Figure 6.2<br />

Map showing grassl<strong>and</strong><br />

types in central USA .<br />

SOURCE: Lauenroth et al.,1994.<br />

grassl<strong>and</strong> prior to European settlement were pristine <strong>and</strong> little modified by<br />

man (Deneven, 1996; Leopold et al., 1963). However, Flores (1999) presents<br />

persuasive arguments that native American populations were relatively high in<br />

<strong>the</strong> Great Plains <strong>and</strong> probably exerted considerable influence on o<strong>the</strong>r components<br />

<strong>of</strong> <strong>the</strong>se grassl<strong>and</strong> ecosystems .<br />

LOCATION AND GENERAL DESCRIPTION OF THE REGION<br />

The extent <strong>of</strong> grassl<strong>and</strong>s in North America is shown in general terms in Figure 6.1.<br />

At coarse scales <strong>the</strong> Great Plains grassl<strong>and</strong> is commonly divided into tall-grass<br />

(true prairie), mixed - (or mid-)grass , <strong>and</strong> short-grass (Bazzaz <strong>and</strong> Parrish, 1982;<br />

Gleason <strong>and</strong> Cronquist, 1964; Lauenroth, et al., 1994; Laycock, 1979; Sieg, Fla<strong>the</strong>r<br />

<strong>and</strong> McCanny, 1999; Sims, 1988) (Figure 6.2). Plates 6.1a–c show examples <strong>of</strong> <strong>the</strong>


REX PIEPER<br />

REX PIEPER<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 223<br />

Plate 6.1a<br />

Examples <strong>of</strong> <strong>the</strong> three major grassl<strong>and</strong> types , from North Dakota in <strong>the</strong> north to<br />

New Mexico in <strong>the</strong> south – (a) Short-grass prairie (central New Mexico).<br />

Plate 6.1b<br />

Examples <strong>of</strong> <strong>the</strong> three major grassl<strong>and</strong> types , from North Dakota in <strong>the</strong> north<br />

to New Mexico in <strong>the</strong> south – (b) Nor<strong>the</strong>rn mixed -grass prairie (central North<br />

Dakota).<br />

three major grassl<strong>and</strong> types from North Dakota to New Mexico. The map in<br />

Lauenroth et al. (1994) (Figure 6.2) shows that <strong>the</strong> tall-grass prairie formed a<br />

narrow b<strong>and</strong> from Canada south to <strong>the</strong> Gulf Coast Prairie in Texas. The diagram<br />

in Barbour, Burk <strong>and</strong> Pitts (1987) shows a transect (Figure 6.3) from <strong>the</strong> Pacific<br />

Ocean to <strong>the</strong> Atlantic at latitude 37°N (<strong>the</strong> nor<strong>the</strong>rn boundary <strong>of</strong> Arizona <strong>and</strong>


224<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 6.1c<br />

Examples <strong>of</strong> <strong>the</strong> three major grassl<strong>and</strong> types , from North Dakota in <strong>the</strong> north to<br />

New Mexico in <strong>the</strong> south – (c) Tall-grass prairie (eastern Kansas).<br />

Figure 6.3<br />

Transect showing topographical changes across central USA .<br />

SOURCE: Barbour, Burk <strong>and</strong> Pitts, 1987.<br />

New Mexico). This diagram shows short-grass vegetation occupying <strong>the</strong> area<br />

between 105° <strong>and</strong> 101°W, <strong>the</strong> mixed prairie to 98°W <strong>and</strong> <strong>the</strong> tall-grass prairie<br />

to 93°W. The map in Lauenroth et al. (1994) shows that <strong>the</strong> nor<strong>the</strong>rn mixed<br />

prairie forms a broad b<strong>and</strong> in Canada, eastern Montana, <strong>the</strong> Dakotas <strong>and</strong> eastern<br />

Wyoming (Figure 6.2). The sou<strong>the</strong>rn mixed-grass prairie is constricted between<br />

<strong>the</strong> tall-grass prairie to <strong>the</strong> east <strong>and</strong> <strong>the</strong> short-grass prairie to <strong>the</strong> west, <strong>and</strong> found<br />

REX PIEPER


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 225<br />

in sou<strong>the</strong>rn Nebraska, central Kansas <strong>and</strong> Oklahoma, <strong>and</strong> Texas (Lauenroth et al.,<br />

1994; Lauenroth, Burke <strong>and</strong> Gutmann, 1999).<br />

CLIMATE<br />

Figure 6.4 shows <strong>the</strong> precipitation gradient east <strong>of</strong> <strong>the</strong> Rocky Mountains in<br />

<strong>the</strong> central part <strong>of</strong> <strong>the</strong> Great Plains resulting from <strong>the</strong> rain-shadow effect <strong>of</strong><br />

<strong>the</strong> Rocky Mountains. Annual precipitation increases from about 320 mm<br />

at Greeley, Colorado, to nearly 900 mm at Kansas City, Missouri. Seasonal<br />

precipitation patterns also vary from south to north in <strong>the</strong> central plains<br />

(Trewartha, 1961). In sou<strong>the</strong>rn portions <strong>of</strong> <strong>the</strong> short-grass prairie , summer<br />

maxima are <strong>the</strong> rule, while fur<strong>the</strong>r east <strong>the</strong>re is one peak in <strong>the</strong> late spring -early<br />

summer <strong>and</strong> ano<strong>the</strong>r in late summer-early autumn (type 3b in Trewartha, 1961).<br />

In <strong>the</strong> nor<strong>the</strong>rn Great Plains, spring peaks are common (type 3c in Trewartha,<br />

1961) while in <strong>the</strong> upper Mississippi Valley-Great Lakes region, summer <strong>and</strong><br />

autumn peaks occur (Trewartha, 1961).<br />

The major temperature gradient is from warm temperatures in sou<strong>the</strong>rn<br />

grassl<strong>and</strong> to cooler temperatures in <strong>the</strong> north (Figure 6.5). The gradient is<br />

steeper for January temperatures than for July temperatures. Colder winter<br />

temperatures in <strong>the</strong> north have many implications for both plants <strong>and</strong> animals.<br />

However, snow cover in <strong>the</strong> north may ameliorate extremely cold air temperatures<br />

at <strong>the</strong> soil surface. Winter temperatures in sou<strong>the</strong>rn locations allow<br />

cool-season plant growth almost any time that <strong>the</strong>re is adequate soil moisture<br />

(Smeins, 1994; Holechek, Pieper <strong>and</strong> Herbel, 2001).<br />

Before European settlement, <strong>the</strong> three grassl<strong>and</strong> types in <strong>the</strong> central portion<br />

<strong>of</strong> <strong>the</strong> continent were fairly comparable in area: short-grass was 615 000 km 2 ,<br />

mixed prairie was 565 000 km 2 <strong>and</strong> tall-grass prairie was 570 000 km 2 (Van<br />

Dyne <strong>and</strong> Dyer, 1973). Today, <strong>the</strong> tall-grass prairie is much constricted because<br />

<strong>of</strong> conversion to intensive agriculture; originally, it extended eastward into<br />

sou<strong>the</strong>rn Minnesota, most <strong>of</strong> Iowa, nor<strong>the</strong>rn Missouri <strong>and</strong> nor<strong>the</strong>rn Illinois<br />

<strong>and</strong> western Indiana (Lauenroth, Burke <strong>and</strong> Gutmann, 1999). Currently, <strong>the</strong><br />

Figure 6.4<br />

Mean annual precipitation<br />

gradient for various sites on<br />

<strong>the</strong> Great Plains east <strong>of</strong> <strong>the</strong><br />

Rocky Mountains.


226<br />

Figure 6.5<br />

Average January <strong>and</strong> July<br />

temperatures for various sites<br />

on a south-north transect in<br />

<strong>the</strong> Great Plains.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

tall-grass prairie occurs mostly as isolated tracts, such as <strong>the</strong> Osage Hills in<br />

Oklahoma <strong>and</strong> <strong>the</strong> Flint Hills in Kansas.<br />

TOPOGRAPHY AND SOILS<br />

Topographically, <strong>the</strong> Great Plains are relatively level, but minor topographic<br />

variations are important in influencing plant species distributions <strong>and</strong> o<strong>the</strong>r<br />

inclusions within <strong>the</strong> grassl<strong>and</strong> . Often, poorly drained sites in depressions,<br />

ei<strong>the</strong>r with or without st<strong>and</strong>ing water, <strong>of</strong>fer habitats for plants <strong>and</strong> animals not<br />

found in adjacent grassl<strong>and</strong>.<br />

Grassl<strong>and</strong> soils have developed from a variety <strong>of</strong> parent materials: limestone,<br />

s<strong>and</strong>stone, shale, metamorphic <strong>and</strong> igneous outwash, <strong>and</strong> loess (Buol,<br />

Hole <strong>and</strong> McCracken, 1980; Dodd <strong>and</strong> Lauenroth, 1979; Miller <strong>and</strong> Donohue,<br />

1990; Sims, Singh <strong>and</strong> Lauenroth, 1978). The major soils are mollisols, deep<br />

soils with dark A horizons <strong>and</strong> high (>50 percent) base saturation (especially<br />

calcium) (Miller <strong>and</strong> Donohue, 1990). Surprisingly, <strong>the</strong> A horizon has a clay<br />

content nearly equal to that <strong>of</strong> <strong>the</strong> B horizon (Baxter <strong>and</strong> Hole, 1967). Several<br />

soil organisms including a common prairie ant (Formica cinerea) are apparently<br />

involved in translocation <strong>of</strong> clays from <strong>the</strong> B horizon to <strong>the</strong> A (Buol, Hole<br />

<strong>and</strong> McCracken, 1980). Buol, Hole <strong>and</strong> McCracken (1980) describe <strong>the</strong> soil<br />

forming process for mollisols as “melanization”. This process consists <strong>of</strong> five<br />

specific processes (Hole <strong>and</strong> Nielsen, 1968):<br />

1. Growth <strong>of</strong> plant roots into <strong>the</strong> soil pr<strong>of</strong>ile.<br />

2. Partial decay <strong>of</strong> organic material in <strong>the</strong> soil.<br />

3. Mixing <strong>of</strong> <strong>the</strong> soil by soil micro-organisms.<br />

4. Eluviation <strong>and</strong> illuviation <strong>of</strong> organic colloids <strong>and</strong> some inorganic colloids.


S.G. REYNOLDS<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 227<br />

5. Formation <strong>of</strong> resistant “ligno-protein” residues producing <strong>the</strong> dark colour<br />

in <strong>the</strong> soil.<br />

Soils developed in semi -arid portions <strong>of</strong> <strong>the</strong> grassl<strong>and</strong> , classified as aridisols<br />

formed by calcification, <strong>of</strong>ten develop calcium carbonate (caliche) layers at varying<br />

depths below <strong>the</strong> surface (Breymeyer <strong>and</strong> Van Dyne, 1979). O<strong>the</strong>r soils<br />

found in <strong>the</strong> grassl<strong>and</strong> include alfisols, found extensively in Kansas, Oklahoma<br />

<strong>and</strong> Texas (Sims, 1988).<br />

FAUNA<br />

At <strong>the</strong> time <strong>of</strong> early exploration <strong>of</strong> <strong>the</strong> American grassl<strong>and</strong> , bison (Bison bison)<br />

were <strong>the</strong> dominant large herbivore in <strong>the</strong> Great Plains (Plate 6.2), although<br />

pronghorn antelope (Plate 6.3) were also abundant (Shaw, 1996; Yoakum,<br />

O’Gara <strong>and</strong> Howard, 1996). Seton (1927), Garretson (1938) <strong>and</strong> Danz (1997)<br />

estimated that as many as 40–60 million head <strong>of</strong> bison were present in <strong>the</strong><br />

North American grassl<strong>and</strong> before settlement. Numbers <strong>of</strong> pronghorn were<br />

probably comparable to those for bison (Nelson, 1925; Yoakum, O’Gara <strong>and</strong><br />

Howard, 1996).<br />

<strong>Grassl<strong>and</strong>s</strong> also provided habitat for a wide variety <strong>of</strong> small mammals,<br />

including prairie dogs (Cynomys spp. ), jackrabbits (Lepus spp. ), ground squirrels<br />

(Spermophilus spp. ), gophers (Geomys spp. <strong>and</strong> Thomomys spp.) <strong>and</strong><br />

voles (Microtus spp .). Originally, several species <strong>of</strong> prairie dogs occupied over<br />

800 000 ha <strong>of</strong> grassl<strong>and</strong>s in central USA (Kreitzer <strong>and</strong> Cully, 2001; Summer <strong>and</strong><br />

Linder, 1978), but by <strong>the</strong> early 1990s <strong>the</strong>ir distribution had been reduced by<br />

98 percent (V<strong>and</strong>erh<strong>of</strong>f, Robel <strong>and</strong> Kemp, 1994).<br />

A wide number <strong>of</strong> invertebrates such as grasshoppers, beetles, ants, sap<br />

feeders <strong>and</strong> members <strong>of</strong> o<strong>the</strong>r orders are important components <strong>of</strong> grassl<strong>and</strong><br />

Plate 6.2<br />

Remnant herd <strong>of</strong> bison (Bison bison).


228<br />

Plate 6.3<br />

Pronghorn antelope on mixed grass prairie – North Dakota.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

ecosystems (Blocker, 1970; McDaniel, 1971; Risser et al., 1981). Some, such<br />

as grasshoppers, have been studied because <strong>of</strong> <strong>the</strong>ir economic importance<br />

(Hewitt, 1977; Hewitt <strong>and</strong> Onsager, 1983) while o<strong>the</strong>rs, such as nematodes,<br />

have only recently been properly assessed as to abundance <strong>and</strong> importance<br />

(Freckman, Duncan <strong>and</strong> Larson, 1979; Smolik, 1974).<br />

Central plains grassl<strong>and</strong>s also support diverse populations <strong>of</strong> birds (Bolen<br />

<strong>and</strong> Crawford, 1996; Gu<strong>the</strong>ry, 1996; Knopf, 1996; Wiens, 1973). However,<br />

within <strong>the</strong> grassl<strong>and</strong> geographical region, habitats o<strong>the</strong>r than grassl<strong>and</strong>s<br />

have higher numbers <strong>of</strong> avian species. Only 11 percent <strong>of</strong> <strong>the</strong> bird species<br />

within <strong>the</strong> grassl<strong>and</strong> geographic area were actually inhabitants <strong>of</strong> grassl<strong>and</strong><br />

per se: 51 percent were associated with woodl<strong>and</strong> <strong>and</strong> forest habitats <strong>and</strong><br />

22 percent with wetl<strong>and</strong> habitats (Bolen <strong>and</strong> Crawford, 1996). Never<strong>the</strong>less,<br />

birds are abundant in grassl<strong>and</strong>s. Glover (1969) listed over 150 species found<br />

on <strong>the</strong> Central Plains Experimental Range in short-grass habitat in northcentral<br />

Colorado. These included both primary consumers <strong>and</strong> secondary<br />

consumers. Common grassl<strong>and</strong> birds include western meadowlark (Sturnella<br />

neglecta), grasshopper sparrow (Ammodramus savannarum), horned lark<br />

(Eremophila aplestris) <strong>and</strong> chestnut-collared longspur (Calcarius ornatus)<br />

(Wiens, 1973, 1974).<br />

Cattle (Plates 6.4 <strong>and</strong> 6.5) have largely replaced bison as <strong>the</strong> dominant large<br />

herbivore on <strong>the</strong> Great Plains. The importance <strong>of</strong> Great Plains cattle to <strong>the</strong> beef<br />

industry in <strong>the</strong> USA is reflected in data quoted by Holechek, Pieper <strong>and</strong> Herbel<br />

(2001) indicating that 50 percent <strong>of</strong> all USA beef cattle are found in <strong>the</strong> nor<strong>the</strong>rn<br />

<strong>and</strong> sou<strong>the</strong>rn Great Plains. Although Lauenroth et al. (1994) concluded<br />

that vegetation changes resulting from <strong>the</strong> shift from bison to cattle have been<br />

minimal, <strong>the</strong>re are differences in grazing patterns <strong>and</strong> behaviour: bison select a<br />

DUANE McCARTNEY


MAE ELSINGER<br />

DUANE McCARTNEY<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 229<br />

Plate 6.4<br />

Herding cattle in a mixed -grass zone, Saskatchewan, Canada.<br />

Plate 6.5<br />

Cattle grazing on Deseret Ranch near Salt Lake City, Utah, USA .<br />

diet higher in grasses than cattle; bison select a diet higher in digestibility than<br />

cattle; bison spend less time grazing than cattle; <strong>and</strong> cattle are restricted in grazing<br />

by fences while bison were free to move over <strong>the</strong> l<strong>and</strong>scape (Danz, 1997;<br />

Donohue, 1999; Stueter <strong>and</strong> Hidinger, 1999; Pieper, 1994).


230<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

VEGETATION PATTERNS<br />

While <strong>the</strong> Central Plains grassl<strong>and</strong> <strong>of</strong> North America is <strong>of</strong>ten divided into three<br />

subdivisions, as noted earlier, <strong>the</strong> patterns are more complex at finer scales.<br />

For example, Sieg, Fla<strong>the</strong>r <strong>and</strong> McCanny (1999) show 24 major vegetation<br />

types extending from Canada to <strong>the</strong> coastal prairies in Texas. Similar rangel<strong>and</strong><br />

also occurs in nor<strong>the</strong>rn Mexico. Woody vegetation types embedded in <strong>the</strong><br />

grassl<strong>and</strong> includes aspen parkl<strong>and</strong> in <strong>the</strong> north, mesquite -acacia savannah,<br />

shinnery oak savannah, cross timbers, mesquite-buffalo grass , juniper -oak<br />

savannah, oak-hickory forest <strong>and</strong> oak-hickory-pine forest in <strong>the</strong> south (Sieg,<br />

Fla<strong>the</strong>r <strong>and</strong> McCanny, 1999). These woodl<strong>and</strong> types have been described in<br />

more detail by Dahl (1994), McClendon (1994), Pettit (1994), Engle (1994)<br />

<strong>and</strong> Smeins (1994). Several species <strong>of</strong> juniper have exp<strong>and</strong>ed into grassl<strong>and</strong>s in<br />

recent times. In Oklahoma some estimates <strong>of</strong> expansion <strong>of</strong> eastern red cedar<br />

(Juniperus virginiana ) are as high as 113 000 ha annually (Engle, 2000; Gehring<br />

<strong>and</strong> Bragg, 1992). In Texas, ash (Juniperus ashei ) <strong>and</strong> redberry (Juniperus<br />

pinchoti ) junipers have also exp<strong>and</strong>ed into grassl<strong>and</strong>s (Smeins, 2000). Reduced<br />

fire intensity <strong>and</strong> frequency is considered one <strong>of</strong> <strong>the</strong> primary factors in this<br />

expansion (McPherson, 1997).<br />

Major grass dominants in <strong>the</strong> tall-grass prairie (Plate 6.6) are big bluestem<br />

(Andropogon gerardii ) little bluestem (Schizachyrium scoparium ), Indian grass<br />

(Sorghastrum nutans ) <strong>and</strong> switchgrass (Panicum virgatum ). In <strong>the</strong> mixed -grass<br />

prairie (see Plates 6.7, 6.8 <strong>and</strong> 6.9), needle-<strong>and</strong>-thread grass (Stipa comata ) <strong>and</strong><br />

western wheatgrass (Pascopyrum smithii ) are common grasses, but many o<strong>the</strong>r<br />

species are abundant on specific sites. Sims (1988) states that <strong>the</strong> vegetational<br />

Plate 6.6<br />

Tall-grass prairie – Sheyenne National Grassl<strong>and</strong> area, North Dakota, USA .<br />

JEFF PRINTZ, USDA-NRCS


JEFF PRINTZ, USDA-NRCS<br />

JEFF PRINTZ, USDA-NRCS<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 231<br />

Plate 6.7<br />

Mixed-grass prairie – west side <strong>of</strong> <strong>the</strong> Missouri river, just south <strong>of</strong> M<strong>and</strong>an,<br />

North Dakota.<br />

Plate 6.8<br />

Mixed-grass prairie – north-central North Dakota, USA .<br />

diversity <strong>of</strong> <strong>the</strong> mixed prairie is highest <strong>of</strong> all grassl<strong>and</strong> types in <strong>the</strong> USA (not<br />

unusual for vegetation <strong>of</strong>ten considered an ecotone ). Two major grass dominants<br />

<strong>of</strong> short-grass (Plate 6.10) vegetation are blue grama (Bouteloua gracilis )<br />

(Plate 6.11) <strong>and</strong> buffalo grass (Buchloe dactyloides ). Many forb species are also<br />

common in <strong>the</strong> grassl<strong>and</strong>. Thus, <strong>the</strong> term “grassl<strong>and</strong>” may be somewhat mis-


232<br />

Plate 6.9<br />

Mixed-grass prairie on <strong>the</strong> Monet Prairie Farm Rehabilitation Community Pasture ,<br />

Saskatchewan, Canada.<br />

Plate 6.10<br />

Short-grass prairie – from a badl<strong>and</strong>s area.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

leading if it implies only grasses are present in high abundance. Typical grassl<strong>and</strong><br />

scenes near M<strong>and</strong>am in North Dakota <strong>and</strong> near Salt Lake City, Utah, are<br />

shown in Plates 6.12 <strong>and</strong> 6.13, respectively.<br />

Within <strong>the</strong> central North America n grassl<strong>and</strong> , <strong>the</strong>re are also minor<br />

variations in species composition related to micro-relief patterns. Ayyad <strong>and</strong><br />

Dix (1964) reported that three species (Festuca scabrella , Carex obtusa ta <strong>and</strong><br />

MAE ELSINGER<br />

JEFF PRINTZ, USDA-NRCS


S.G. REYNOLDS<br />

DUANE McCARTNEY<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 233<br />

Plate 6.11<br />

Bouteloua gracilis – Blue grama.<br />

Plate 6.12<br />

Mixed grass prairie near M<strong>and</strong>an, North Dakota.<br />

Galium boreale ) were most abundant on moist <strong>and</strong> cool north-facing slopes,<br />

while o<strong>the</strong>r species (Phlox hoodii , Carex filifolia , Stipa comata , Artemisia<br />

frigida ) reached highest abundance on relatively warm <strong>and</strong> dry south-facing<br />

slopes. Species occupying intermediate habitats were Koeleria cristata , Carex<br />

eleocharis , Stipa spartea <strong>and</strong> Agropyron dasystachum . Redmann (1975) <strong>and</strong><br />

Sims (1988) reported on micro-topographical <strong>and</strong> soils variations in mixed


234<br />

Plate 6.13<br />

Grassl<strong>and</strong> with sagebrush near Salt Lake City, Utah.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

prairie vegetation in North Dakota. Agropyron smithii , Carex pennsylvanica <strong>and</strong><br />

Stipa comata were dominant species on rolling upl<strong>and</strong> with fine-textures soils,<br />

while sites at lower elevations with medium-textured soils supported st<strong>and</strong>s <strong>of</strong><br />

Sporobolus heterolepis . In short-grass vegetation in New Mexico, blue grama was<br />

present in all topographic positions, while Lycurus phleoides , Aristida wrightii ,<br />

Stipa neomexicana <strong>and</strong> Bouteloua curtipendula occurred on upper slopes.<br />

Sporobolus crypt<strong>and</strong>rus <strong>and</strong> Muhlenbergia torrey i along with blue grama were<br />

dominant on lower slopes, with blue grama <strong>and</strong> buffalo grass , Muhlenbergia<br />

repens <strong>and</strong> Hilaria jamesii in moister depressions (Beavis et al., 1981).<br />

There is also a north-south gradient in <strong>the</strong> relative proportion <strong>of</strong> C3 <strong>and</strong><br />

C4 species (Sims, Singh <strong>and</strong> Lauenroth, 1978). C4 species comprise more than<br />

80 percent <strong>of</strong> <strong>the</strong> flora from 30° to 42°N, while C3 species increase dramatically<br />

north <strong>of</strong> 42°N (Sims, 1988).<br />

PRIMARY PRODUCTION<br />

Several environmental variables act to control primary production in <strong>the</strong><br />

Central Plains grassl<strong>and</strong>s in North America. Precipitation, as it is translated<br />

into soil water content through infiltration, is <strong>of</strong>ten considered <strong>the</strong> main<br />

control for primary production (Laurenroth, 1979; Sims, Singh <strong>and</strong> Lauenroth,<br />

1978; Sims <strong>and</strong> Singh, 1978a, b). Several studies have provided regression<br />

analyses showing <strong>the</strong> relationship between precipitation <strong>and</strong> above ground<br />

net primary productivity (ANPP ). Lauenroth (1979) showed a linear<br />

relationship between ANPP <strong>and</strong> mean annual precipitation for 52 grassl<strong>and</strong><br />

sites around <strong>the</strong> world, with r 2 <strong>of</strong> 0.51 under mean annual precipitation<br />

ranging from about 100 mm to about 1500 mm. Later, Lauenroth, Burke <strong>and</strong><br />

DUANE McCARTNEY


MAE ELSINGER<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 235<br />

Gutmann (1999) presented similar analyses for a much larger data set from<br />

central USA grassl<strong>and</strong>s for normal rainfall, favourable <strong>and</strong> unfavourable<br />

rainfall patterns. The r2 values were 0.56 for normal years, 0.66 for favourable<br />

years <strong>and</strong> 0.43 for unfavourable years (favourable years represent <strong>the</strong> wettest<br />

10 percent <strong>of</strong> <strong>the</strong> years; unfavourable are <strong>the</strong> driest 10 percent <strong>of</strong> <strong>the</strong> years;<br />

<strong>and</strong> normal <strong>the</strong> middle 80 percent (Soil Conservation Service, 1973)). Of<br />

course, <strong>the</strong> ANPP–precipitation relationship is not linear over <strong>the</strong> complete<br />

range <strong>of</strong> precipitation values, <strong>and</strong> <strong>of</strong>ten annual precipitation is a relatively<br />

poor predictor <strong>of</strong> ANPP or end-<strong>of</strong>-season st<strong>and</strong>ing crop (Pieper, 1988).<br />

For example, Smoliak (1956) found that May-June precipitation was highly<br />

related to end-<strong>of</strong>-season st<strong>and</strong>ing crop in nor<strong>the</strong>rn Great Plains short-grass<br />

prairie (r2 = 0.86), while Hart <strong>and</strong> Samuel (1985) found a high correlation<br />

between spring -summer precipitation <strong>and</strong> herbage yield in short-grass<br />

vegetation in eastern Wyoming (r2 = 0.95). Since primary production is so<br />

closely related to precipitation, <strong>the</strong> general pattern <strong>of</strong> primary production<br />

(Plate 6.14) follows those gradients <strong>of</strong> precipitation, increasing from west to<br />

east. Lauenroth (1979) reported that general average annual production was<br />

about 200 g/m2 for short-grass, 300 g/m2 for mixed -grass prairie <strong>and</strong> 500 g/<br />

m2 for USA International Biological Programme locations. These general<br />

averages mask <strong>the</strong> tremendous variation across <strong>the</strong>se grassl<strong>and</strong>s. For example,<br />

Risser et al. (1981) reported that above ground peak live st<strong>and</strong>ing crop for<br />

23 tall-grass locations varied from 180 g/m2 at Junction, Kansas, to nearly<br />

600 g/m2 in Oklahoma County, Oklahoma.<br />

Plate 6.14<br />

Estimating annual biomass productivity on <strong>the</strong> Monet Prairie Farm Rehabilitation<br />

Area, Saskatchewan, Canada.


236<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

PASTORAL AND AGRICULTURAL SYSTEMS<br />

Considerable portions <strong>of</strong> <strong>the</strong> central grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> USA have been converted<br />

to intensive agriculture (Gunderson, 1981). Thomas, Herbel <strong>and</strong> Miller (1990)<br />

estimated that only about 1 percent <strong>of</strong> <strong>the</strong> original tall-grass prairie is still in<br />

native vegetation , while Lauenroth, Burke <strong>and</strong> Gutmann (1999) estimated that<br />

approximately 50 percent <strong>of</strong> <strong>the</strong> short-grass prairie is still uncultivated.<br />

Crop production<br />

Wheat is <strong>the</strong> major crop grown on <strong>the</strong> western edge <strong>of</strong> <strong>the</strong> Great Plains,<br />

although larger percentages <strong>of</strong> <strong>the</strong> l<strong>and</strong> in wheat occurred in central <strong>and</strong> eastern<br />

Kansas <strong>and</strong> Oklahoma <strong>and</strong> nor<strong>the</strong>astern North Dakota (Lauenroth, Burke <strong>and</strong><br />

Gutmann, 1999). The pattern <strong>of</strong> acreage <strong>of</strong> wheat grown in <strong>the</strong> Great Plains<br />

was one <strong>of</strong> breaking native sod during times <strong>of</strong> plentiful precipitation <strong>and</strong> high<br />

wheat prices, <strong>and</strong> ab<strong>and</strong>onment <strong>of</strong> <strong>the</strong>se l<strong>and</strong>s during drought <strong>and</strong> periods <strong>of</strong><br />

low wheat prices (Holechek, Pieper <strong>and</strong> Herbel, 2001; Sims, 1988; Stoddart,<br />

Smith <strong>and</strong> Box, 1975). The dust bowl <strong>of</strong> <strong>the</strong> 1930s occurred in sou<strong>the</strong>astern<br />

Colorado, sou<strong>the</strong>astern Kansas <strong>and</strong> <strong>the</strong> Texas <strong>and</strong> Oklahoma panh<strong>and</strong>les,<br />

largely on l<strong>and</strong> unsuited for cultivation without irrigation (Costello, 1944;<br />

Holechek, Pieper <strong>and</strong> Herbel, 2001; Jordan , 1995; Sims, 1988). Considerable<br />

effort has been expended in developing seeding techniques to “recover” <strong>the</strong>se<br />

ab<strong>and</strong>oned fields (Bement et al., 1965).<br />

In 1985, <strong>the</strong> Food Security Act provided <strong>the</strong> opportunity for l<strong>and</strong> owners to<br />

retire cropl<strong>and</strong>, <strong>and</strong> provided cost-share funding to establish grass cover, wildlife<br />

habitat or trees (Joyce, 1989). Under <strong>the</strong> Conservation Reserve Programme<br />

(CRP ) <strong>of</strong> this USA Act, many l<strong>and</strong> owners converted cropl<strong>and</strong> to grassl<strong>and</strong><br />

(Mitchell, 2000). The CRP is a voluntary cropl<strong>and</strong> retirement programme<br />

under which <strong>the</strong> Federal Government pays an annual rental fee <strong>and</strong> a cost<br />

share for conversion from cropl<strong>and</strong> to a permanent cover <strong>of</strong> grass, wildlife or<br />

trees. The basic goals for creation <strong>of</strong> <strong>the</strong> CPR were to: (1) take highly erosive<br />

cropl<strong>and</strong> out <strong>of</strong> production <strong>and</strong> to establish a permanent perennial vegetation<br />

cover; (2) to decrease farm commodity surpluses; (3) to generate stable<br />

incomes for participants; <strong>and</strong> (4) to enhance natural resource values, including<br />

soil, water, air quality <strong>and</strong> wildlife (Goetz, 1989; Heimlich <strong>and</strong> Kula, 1989).<br />

The map presented by Mitchell (2000) shows that CRP l<strong>and</strong>s are concentrated<br />

in <strong>the</strong> plains states, with high densities in <strong>the</strong> nor<strong>the</strong>rn Great Plains (Montana<br />

<strong>and</strong> North Dakota), <strong>the</strong> corn belt (sou<strong>the</strong>rn Iowa <strong>and</strong> nor<strong>the</strong>rn Missouri) <strong>and</strong><br />

<strong>the</strong> sou<strong>the</strong>rn Great Plains (eastern Colorado, western Kansas <strong>and</strong> <strong>the</strong> panh<strong>and</strong>les<br />

<strong>of</strong> Oklahoma <strong>and</strong> Texas). Originally, <strong>the</strong> CRP programme was designed<br />

for a 10–15-year period, but in separate Acts in 1990 <strong>and</strong> 1996, <strong>the</strong> CRP was<br />

extended <strong>and</strong> broadened (Mitchell, 2000).<br />

Most l<strong>and</strong> in <strong>the</strong> Great Plains is under private ownership (Holechek, Pieper<br />

<strong>and</strong> Herbel, 2001). For example, Neubauer (1963) reported that <strong>the</strong>re was<br />

nearly 34 million hectares <strong>of</strong> private range <strong>and</strong> pasture l<strong>and</strong> in <strong>the</strong> Dakotas,


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 237<br />

Nebraska <strong>and</strong> Kansas, but only 1 million hectares <strong>of</strong> state <strong>and</strong> Indian l<strong>and</strong><br />

<strong>and</strong> 1.4 million hectares <strong>of</strong> federal l<strong>and</strong>. There are National Forest l<strong>and</strong>s in<br />

<strong>the</strong> Dakotas, Nebraska, Arkansas <strong>and</strong> Missouri, but most <strong>of</strong> <strong>the</strong>se are forest<br />

or woodl<strong>and</strong>s (Mitchell, 2000). Some Forest Service L<strong>and</strong> is in National<br />

<strong>Grassl<strong>and</strong>s</strong>, but <strong>the</strong>se are relatively small compared with non-federal l<strong>and</strong>.<br />

Licht (1997) lists 15 separate National <strong>Grassl<strong>and</strong>s</strong> in <strong>the</strong> Plains states. These<br />

vary in size from less than 600 ha for McClell<strong>and</strong> Creek National Grassl<strong>and</strong> ,<br />

to over 400 000 ha in <strong>the</strong> Little Missouri National Grassl<strong>and</strong> in North Dakota.<br />

The Bureau <strong>of</strong> L<strong>and</strong> Management (BLM) has mineral rights to considerable<br />

areas outside <strong>the</strong> West, but little surface rights in <strong>the</strong> Great Plains (Holechek,<br />

Pieper <strong>and</strong> Herbel, 2001). Most <strong>of</strong> <strong>the</strong> BLM holdings in <strong>the</strong> Plains grassl<strong>and</strong> is<br />

in Montana <strong>and</strong> Wyoming, but <strong>the</strong>re are also a few allotments in South Dakota<br />

(Licht, 1997; Wester <strong>and</strong> Bakken, 1992).<br />

Major crops in tall-grass regions are maize <strong>and</strong> soybeans (Lauenroth, Burke<br />

<strong>and</strong> Gutmann, 1999), with maize more important in <strong>the</strong> north <strong>and</strong> soybean in<br />

<strong>the</strong> central <strong>and</strong> sou<strong>the</strong>rn portions <strong>of</strong> <strong>the</strong> grassl<strong>and</strong>s. Wheat is <strong>the</strong> o<strong>the</strong>r major<br />

cereal crop, with higher yields in eastern portions, but greater areas in <strong>the</strong> west<br />

<strong>and</strong> north in locations with less than 500 mm/yr precipitation (Lauenroth,<br />

Burke <strong>and</strong> Gutmann, 1999). Cotton is important in eastern New Mexico, western<br />

Oklahoma <strong>and</strong> nor<strong>the</strong>rn Texas.<br />

Grazing management<br />

Livestock production<br />

Several types <strong>of</strong> enterprises constitute <strong>the</strong> livestock production systems <strong>of</strong><br />

Central North America. In <strong>the</strong> drier portions <strong>of</strong> <strong>the</strong> region (short-grass<br />

<strong>and</strong> mixed -grass ), extensive range grazing operations are <strong>the</strong> norm. These<br />

operations are typically cow-calf operations with <strong>the</strong> young animal sold for<br />

finishing in feedlots (Neumann <strong>and</strong> Lusby, 1986). In o<strong>the</strong>r cases, stocker<br />

programmes – whereby weaned animals are retained <strong>and</strong> maintained by<br />

feeding roughages to ensure growth but not improvement in condition – are<br />

practised (Neumann <strong>and</strong> Lusby, 1986; Wagnon, Albaugh <strong>and</strong> Hart, 1960).<br />

Stocking rates on native short-grass prairie vary considerably depending on<br />

precipitation , range condition <strong>and</strong> o<strong>the</strong>r environmental factors. Klipple <strong>and</strong><br />

Costello (1960) reported that moderate stocking in eastern Colorado was<br />

about 21 ha per animal unit year (AUY), while Bement (1969) recommended<br />

19.4 ha to support 1 AUY. In <strong>the</strong> panh<strong>and</strong>le <strong>of</strong> Nebraska, Burzlaff <strong>and</strong> Harris<br />

(1969) reported that moderate stocking was 14 ha per AUY. These stocking<br />

rates were based on summer grazing from May through October. In mixedgrass<br />

regions, stocking rates are normally higher, e.g. 9.3 ha AUY in North<br />

Dakota (Rogler, 1951). In tall-grass prairie , stocking rates are much higher:<br />

4 ha AUY in Oklahoma (Harlan, 1960). In <strong>the</strong> Prairie Provinces <strong>of</strong> Canada<br />

(see Plates 6.15, 6.16 <strong>and</strong> 6.17), Smoliak et al. (1976) reported that carrying<br />

capacities ranged from 21.6 to 10.9 ha AUY depending on range type <strong>and</strong>


238<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 6.15<br />

Mixed-grass zone: roped steer on <strong>the</strong> Tecumseh Prairie Farm Rehabilitation Area,<br />

Saskatchewan, Canada.<br />

Plate 6.16<br />

Mixed-grass zone: cattle on <strong>the</strong> Caledonia Prairie Farm Rehabilitation Area,<br />

Saskatchewan, Canada.<br />

condition. Holechek, Pieper <strong>and</strong> Herbel (2001) reviewed several grazing studies<br />

in <strong>the</strong> Great Plains, <strong>and</strong> recommended 35–40 percent removal (utilization) <strong>of</strong><br />

current annual production to maintain vigorous plants <strong>and</strong> grassl<strong>and</strong> ranges<br />

in a highly productive condition. Bement (1969) recommended leaving 300–<br />

MAE ELSINGER MAE ELSINGER


MAE ELSINGER<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 239<br />

Plate 6.17<br />

Winter grazing on <strong>the</strong> Canadian prairie.<br />

350 kg/ha at <strong>the</strong> end <strong>of</strong> <strong>the</strong> summer grazing period to support both livestock<br />

performance <strong>and</strong> desirable vegetation condition for short-grass rangel<strong>and</strong> in<br />

eastern Colorado.<br />

Most livestock operations in <strong>the</strong> Great Plains are relatively small. Over<br />

85 percent <strong>of</strong> <strong>the</strong> farms <strong>and</strong> ranches in <strong>the</strong> Great Plains (including North<br />

<strong>and</strong> South Dakota, Nebraska, Montana, Wyoming, Kansas <strong>and</strong> Oklahoma)<br />

had less than 100 head <strong>of</strong> cattle , <strong>and</strong> only 5 percent had more than 500 head<br />

(Mitchell, 2000). Over 46 percent had less than 50 head. These were probably<br />

small operations where cattle were produced in conjunction with cropping<br />

operations. There were over 180 000 individual units in <strong>the</strong>se seven states in<br />

1993. Numerically, cattle are much more important than sheep in <strong>the</strong> Central<br />

Plains grassl<strong>and</strong>s (Mitchell, 2000). Total cattle numbers for most <strong>of</strong> <strong>the</strong> states<br />

making up <strong>the</strong> Great Plains was about 25 million head, compared with about<br />

5 million sheep (Ensminger <strong>and</strong> Parker, 1986; Mitchell, 2000). Sheep numbers<br />

have declined during <strong>the</strong> last 50 years because <strong>of</strong> predator problems, economic<br />

conditions, lack <strong>of</strong> herders in some western states, lack <strong>of</strong> dem<strong>and</strong> for mutton<br />

<strong>and</strong> lamb, <strong>and</strong> o<strong>the</strong>r factors. These data on livestock numbers do not distinguish<br />

among different types <strong>of</strong> operations.<br />

The nor<strong>the</strong>rn <strong>and</strong> sou<strong>the</strong>rn Great Plains (including Texas) support about<br />

half <strong>of</strong> <strong>the</strong> total beef cattle in <strong>the</strong> USA (Holechek, Pieper <strong>and</strong> Herbel, 2001),<br />

while <strong>the</strong> rest <strong>of</strong> <strong>the</strong> West supports less that 10 percent <strong>of</strong> <strong>the</strong> total. There was<br />

no distinction between those in feedlots <strong>and</strong> those on farms <strong>and</strong> ranches , but<br />

<strong>the</strong>se numbers illustrate <strong>the</strong> importance <strong>of</strong> <strong>the</strong> Great Plains as a livestock-producing<br />

area.


240<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Balancing seasonal variations <strong>of</strong> forage supply<br />

In more mesic situations, mixed operations are common, whereby animals are<br />

raised under pasture or confined conditions in combination with cultivated<br />

agriculture practices (Neumann <strong>and</strong> Lusby, 1986). In many cases, <strong>the</strong> number<br />

<strong>of</strong> animals in <strong>the</strong>se situations is relatively small.<br />

Although grassl<strong>and</strong>s have <strong>the</strong> potential to be grazed year long, <strong>the</strong>y are<br />

grazed mostly seasonally by livestock. In nor<strong>the</strong>rn areas, inclement wea<strong>the</strong>r<br />

largely precludes grazing during <strong>the</strong> winter (Holechek, Pieper <strong>and</strong> Herbel,<br />

2001; Neumann <strong>and</strong> Lusby, 1986; Stoddart <strong>and</strong> Smith, 1955). Native grass hay<br />

<strong>and</strong> alfalfa have been used extensively as winter feed in nor<strong>the</strong>rn areas <strong>and</strong> as<br />

supplemental feed in sou<strong>the</strong>rn areas (Neumann <strong>and</strong> Lusby, 1986; Newell, 1948;<br />

Rogler <strong>and</strong> Hurtt, 1948). Keller (1960) showed that wild hay (native grasses)<br />

occupied over 3.6 million hectares in <strong>the</strong> six plains states, followed by alfalfa on<br />

about 2.8 million hectares <strong>and</strong> cereal hay on about 0.4 million hectares.<br />

Ano<strong>the</strong>r factor involved in decisions for seasonal grazing is that <strong>of</strong> declining<br />

nutritive quality <strong>of</strong> forage as <strong>the</strong> growing season progresses (Adams et<br />

al., 1996; Rao, Harbers <strong>and</strong> Smith, 1973; Scales, Streeter <strong>and</strong> Denham, 1971).<br />

Protein content <strong>of</strong> Great Plains forage generally reaches a peak during <strong>the</strong> early<br />

summer period <strong>and</strong> declines sharply as <strong>the</strong> forage matures into winter (Adams<br />

et al., 1996). During <strong>the</strong> late summer, forage quality was rated as moderate,<br />

while in <strong>the</strong> winter it was rated as low quality. O<strong>the</strong>r nutritional variables<br />

<strong>of</strong>ten change in a similar pattern, such as phosphorus content, digestibility <strong>and</strong><br />

intake. Changes in nutritive quality <strong>of</strong> forage depend to some degree on species<br />

composition: cool-season grasses (C3 ) have higher nutritive quality early<br />

in <strong>the</strong> season than warm-season species (C4 ) that grow later, during <strong>the</strong> heat <strong>of</strong><br />

<strong>the</strong> summer. Presence <strong>of</strong> forbs may also increase mineral content <strong>of</strong> herbivore<br />

diets (Pieper <strong>and</strong> Beck, 1980; Holechek, 1984). In New Mexico, protein <strong>and</strong><br />

phosphorus content <strong>of</strong> side-oats grama (Bouteloua curtipendula ) was significantly<br />

lower than that <strong>of</strong> five o<strong>the</strong>r grass species (Pieper et al., 1978). Tall-grass<br />

prairie plants <strong>of</strong>ten become coarse <strong>and</strong> relatively unpalatable late in <strong>the</strong> growing<br />

season.<br />

One approach to mitigation <strong>of</strong> <strong>the</strong> problems <strong>of</strong> low nutritive quality <strong>and</strong><br />

palatability <strong>of</strong> forage late in <strong>the</strong> growing season is intensive early stocking<br />

(Bernardo <strong>and</strong> McCollum, 1987; Lacey, Studiner <strong>and</strong> Hacker, 1994; Smith <strong>and</strong><br />

Owensby, 1978; McCollum et al., 1990; Olson, Brethour <strong>and</strong> Launchbaugh,<br />

1993). In Montana, early spring grazing was beneficial for most vegetational<br />

characteristics compared with summer grazing, but livestock performance<br />

was not reported (Lacey, Studiner <strong>and</strong> Hacker, 1994). In tall-grass prairie in<br />

Kansas, intensive early grazing improved steer gains per unit area compared<br />

with season-long grazing, resulted in more even utilization <strong>of</strong> <strong>the</strong> pastures<br />

<strong>and</strong> increased desirable perennial grass production, but reduced gain per steer<br />

(Smith <strong>and</strong> Owensby, 1978). O<strong>the</strong>r studies in Kansas indicated that stocking<br />

density could be increased 2 to 3 times by early-season grazing compared with


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 241<br />

summer-season grazing (Launchbaugh <strong>and</strong> Owensby, 1978). However, Olson,<br />

Brethour <strong>and</strong> Launchbaugh (1993) cautioned against using early-season grazing<br />

at high stocking rates when vigour <strong>of</strong> cool-season plant species is a concern.<br />

McCollum et al. (1990) reported that total beef production was increased<br />

19 percent under increased early-season stocking compared with traditional<br />

season-long stocking.<br />

Grazing systems<br />

O<strong>the</strong>r stocking plans for <strong>the</strong> Great Plains include several types <strong>of</strong> rotational<br />

grazing systems (Holechek, Pieper <strong>and</strong> Herbel, 2001). The objective <strong>of</strong> many <strong>of</strong><br />

<strong>the</strong>se plans is to increase individual plant vigour <strong>and</strong> overall plant productivity .<br />

The basic design for rotation systems is to defer grazing on different pastures<br />

or portions <strong>of</strong> <strong>the</strong> entire area at different seasons in different years (Vallentine,<br />

1990). This objective is met by adjusting <strong>the</strong> number <strong>of</strong> pastures <strong>and</strong> herds to<br />

ensure that <strong>the</strong> same area is not grazed at <strong>the</strong> same period each year. Research<br />

results comparing specialized grazing systems to continuous grazing have<br />

been mixed (Herbel, 1974; Herbel <strong>and</strong> Pieper, 1991; Hickey, 1969; Van Poolen<br />

<strong>and</strong> Lacey, 1979). In some cases <strong>the</strong>re has been little difference in ei<strong>the</strong>r cattle<br />

production or vegetation status between continuous grazing <strong>and</strong> some form<br />

<strong>of</strong> rotation grazing in <strong>the</strong> central Great Plains (Hart et al., 1988; Lodge, 1970;<br />

Rogler, 1951; McIlvain <strong>and</strong> Shoop, 1969; McIlvain <strong>and</strong> Savage, 1951; McIlvain<br />

et al., 1955). Generally, rotational grazing systems, whereby livestock are<br />

concentrated in one pasture for short periods, decreased livestock performance<br />

(gain per head), presumably because <strong>of</strong> lower selection, lower nutritive quality<br />

<strong>of</strong> forage selected <strong>and</strong> lower digestibility (Malechek, 1984; Pieper, 1980). Field<br />

studies in some cases confirmed this (Fisher <strong>and</strong> Marion, 1951; Heitschmidt,<br />

Kothmann <strong>and</strong> Rawlins, 1982; Pieper et al., 1991; Smith et al., 1967). O<strong>the</strong>r<br />

studies indicated that <strong>the</strong>re was some vegetation improvement , including<br />

higher production, increases in abundance <strong>of</strong> plant species desirable for<br />

grazing, or increases in plant cover (Herbel <strong>and</strong> Anderson, 1959; Smith <strong>and</strong><br />

Owensby, 1978; Pieper et al., 1991) under specialized grazing systems. Van<br />

Poollen <strong>and</strong> Lacey (1979) reported that six studies in <strong>the</strong> nor<strong>the</strong>rn Great Pains<br />

showed virtually no difference in herbage yields under continuous grazing<br />

<strong>and</strong> rotation systems, while in tall-grass prairie (Flint Hills in Kansas) herbage<br />

yields were 17 percent higher under specialized grazing systems than under<br />

continuous grazing. In some cases, improved management <strong>and</strong> more uniform<br />

grazing distribution under specialized grazing systems are confounded with<br />

<strong>the</strong> grazing system.<br />

During <strong>the</strong> 1970s <strong>and</strong> 1980s, interest in short-duration or time-controlled<br />

grazing , as advocated by Savory (1999), peaked. This grazing approach is based<br />

on having a large number <strong>of</strong> paddocks <strong>and</strong> moving livestock rapidly through<br />

<strong>the</strong> paddocks, especially during periods <strong>of</strong> rapid plant growth (Savory, 1983,<br />

1999; Savory <strong>and</strong> Parsons, 1980). The grazing period is <strong>of</strong>ten only a matter


242<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>of</strong> a few days or even, in extreme cases, hours, since all <strong>the</strong> livestock normally<br />

allocated to <strong>the</strong> entire area are concentrated into one paddock at a time.<br />

Savory has stated that stocking could be doubled over that recommended by<br />

st<strong>and</strong>ard Soil Conservation Service procedures (Bryant et al., 1989). Results <strong>of</strong><br />

experiments involving short-duration grazing in <strong>the</strong> Great Plains have been<br />

mixed . Holechek, Pieper <strong>and</strong> Herbel (2001) evaluated nine studies conducted<br />

on USA <strong>and</strong> Canadian grassl<strong>and</strong>s. Many <strong>of</strong> <strong>the</strong>se studies showed little difference<br />

in herbage yield between short-duration grazing <strong>and</strong> continuous grazing<br />

(Manley et al., 1997; Pitts <strong>and</strong> Bryant, 1987; Thurow, Blackburn <strong>and</strong> Taylor,<br />

1988; White et al., 1991). In some cases <strong>the</strong>re was some advantage for shortduration<br />

grazing, depending on stocking rate (Heitschmidt, Downhower <strong>and</strong><br />

Walker, 1987). In New Mexico, on blue grama rangel<strong>and</strong>, short-duration grazing<br />

apparently benefited blue grama compared with continuous grazing (White<br />

et al., 1991). Stocking rate was more influential than grazing system in most <strong>of</strong><br />

<strong>the</strong>se studies (Bryant et al., 1989; Holechek, Pieper <strong>and</strong> Herbel, 2001; Pieper<br />

<strong>and</strong> Heitschmidt, 1988).<br />

Short-duration grazing apparently reduced infiltration <strong>and</strong> increased run<strong>of</strong>f<br />

compared with non-grazed or continuous grazing conditions in grassl<strong>and</strong>s<br />

(McCalla, Blackburn <strong>and</strong> Merrill, 1984; Pluhar, Knight <strong>and</strong> Heitschmidt, 1987;<br />

Weltz <strong>and</strong> Wood, 1986). Concentrating livestock, even for short periods, tends<br />

to compact <strong>the</strong> soil <strong>and</strong> negates any possible benefit from ho<strong>of</strong> action. However,<br />

in New Mexico, infiltration <strong>and</strong> run<strong>of</strong>f had returned nearly to normal in shortduration<br />

pastures following <strong>the</strong> rest period (Weltz <strong>and</strong> Wood, 1986).<br />

Intensification?<br />

Since grassl<strong>and</strong>s are generally grazed seasonally, provision for feed for <strong>the</strong><br />

rest <strong>of</strong> <strong>the</strong> year is necessary. The use <strong>of</strong> complementary pastures along with<br />

native range is one approach for meeting <strong>the</strong> nutritional needs <strong>of</strong> livestock<br />

during periods when grazing <strong>of</strong> native rangel<strong>and</strong> is not practical (Gillen <strong>and</strong><br />

Berg, 2001; Hart et al., 1988; Hovel<strong>and</strong>, McCann <strong>and</strong> Hill, 1997; Keller,<br />

1960; Lodge, 1970; Nichols, Sanson <strong>and</strong> Myran, 1993; Smoliak, 1968). Such<br />

complementary pastures may involve old world bluestems (Gillen <strong>and</strong> Berg,<br />

2001), introduced grasses such as crested (Plate 6.18) <strong>and</strong> o<strong>the</strong>r wheatgrasses<br />

(Holechek, 1981; Rogler, 1960), o<strong>the</strong>r cool-season grasses (Nichols, Sanson<br />

<strong>and</strong> Myran, 1993) <strong>and</strong> legumes.<br />

Fertilization is ano<strong>the</strong>r practice used to enhance livestock performance<br />

in <strong>the</strong> Great Plains (Nyren, 1979; Wight, 1976). Nitrogen is most <strong>of</strong>ten <strong>the</strong><br />

limiting nutrient , but in some cases phosphorus <strong>and</strong> potassium may also be<br />

limiting (Nyren, 1979; Vallentine, 1989; Wight, 1976). An extensive literature<br />

on range fertilization has developed that shows, in general, greater vegetational<br />

response in nor<strong>the</strong>rn mixed prairie rangel<strong>and</strong>s than in sou<strong>the</strong>rn areas<br />

(Vallentine, 1989). Nitrogen fertilization may change species composition<br />

by favouring cool-season species if applications are made early in <strong>the</strong> grow-


S.G. REYNOLDS<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 243<br />

Plate 6.18<br />

Crested wheatgrass (Agropyron cristatum ).<br />

ing season (Nyren, 1979; Vallentine, 1989). In nor<strong>the</strong>rn mixed prairie, early<br />

application <strong>of</strong> nitrogen may stimulate <strong>the</strong> aggressive cool-season species<br />

western wheatgrass (originally Agropyron smithii , now Pascopyrum smithii )<br />

at <strong>the</strong> expense <strong>of</strong> warm-season species (Nyren, 1979). High nitrogen fertilizer<br />

rates late in <strong>the</strong> growing season to benefit warm-season species such as blue<br />

grama may stimulate cool-season species <strong>the</strong> next spring (Wight, 1976). In<br />

sou<strong>the</strong>rn areas, cool-season introduced species such as Kentucky bluegrass<br />

(Poa pratensis ) may be stimulated (Owensby, 1970; Rehm, Sorensen <strong>and</strong><br />

Moline, 1976; Vallentine, 1989).<br />

Power (1972) argued that on many nor<strong>the</strong>rn Great Plains rangel<strong>and</strong>s,<br />

inorganic nitrogen is immobilized when nitrogen is added as fertilizer <strong>and</strong><br />

sufficient nitrogen must be added to overcome that immobilized. He stated<br />

that <strong>the</strong> system could be maintained if annual fertilizer additions plus mineralization<br />

equals immobilization plus irreversible losses.<br />

Even though substantial responses in herbage yield can be accomplished<br />

with range fertilization in grassl<strong>and</strong>s, <strong>the</strong> practice may be only marginally<br />

feasible economically. In blue grama rangel<strong>and</strong> in south-central New Mexico,<br />

despite doubling <strong>of</strong> herbage <strong>and</strong> cattle production from annual additions <strong>of</strong><br />

40 kg/ha, economic returns were marginal (Chili et al., 1998). The economics<br />

<strong>of</strong> range fertilization depend mostly on cost <strong>of</strong> fertilizer <strong>and</strong> livestock<br />

prices.


244<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 6.19<br />

Prescribed burn to control aspen growth on <strong>the</strong> mixed -grass <strong>of</strong> <strong>the</strong> Wolverine<br />

Prairie Farm Rehabilitation Area, Saskatchewan, Canada.<br />

Rangel<strong>and</strong> burning<br />

Fire is ano<strong>the</strong>r useful tool in managing Great Plains grassl<strong>and</strong> (Wright, 1974,<br />

1978; Wright <strong>and</strong> Bailey, 1982). Vallentine (1989) lists 18 separate objectives in<br />

rangel<strong>and</strong> burning but suggests that <strong>the</strong>re are three main reasons to burn: 1. To<br />

kill or suppress undesirable brush plants (Plate 6.19). 2. To prevent invasion <strong>of</strong><br />

inferior species in <strong>the</strong> understorey. 3. To increase forage production <strong>and</strong> thus<br />

grazing capacity .<br />

Especially in tall-grass prairie , prescribed burning is <strong>of</strong>ten used to reduce<br />

old growth <strong>and</strong> stimulate new, more palatable growth (Anderson, Smith <strong>and</strong><br />

Owensby, 1970; McMurphy <strong>and</strong> Anderson, 1965; Smith <strong>and</strong> Owensby, 1972).<br />

Wright (1978) suggested that burning in tall-grass vegetation increased palatability,<br />

suppressed encroachment <strong>of</strong> trees <strong>and</strong> shrubs <strong>and</strong> reduced competition<br />

from cool-season plants. However, timing <strong>of</strong> <strong>the</strong> burning is very important.<br />

Cool-season grasses are detrimentally affected by spring burning (Hensel, 1923;<br />

Wright, 1978). Spring burning tends to increase summer gains <strong>of</strong> cattle , but<br />

gains may not hold up into <strong>the</strong> autumn (Anderson, Smith <strong>and</strong> Owensby, 1970;<br />

Vallentine, 1989). Late winter burning may initiate spring growth two to three<br />

weeks earlier than in <strong>the</strong> absence <strong>of</strong> burning (Ehrenreich <strong>and</strong> Aikman, 1963).<br />

Development <strong>of</strong> grassl<strong>and</strong>s<br />

<strong>Grassl<strong>and</strong>s</strong> are very dynamic, both spatially <strong>and</strong> temporally (Dix, 1964; Sims,<br />

1988). Consequently, different authors have considered different factors as<br />

MAE ELSINGER


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 245<br />

influential in <strong>the</strong> development <strong>of</strong> grassl<strong>and</strong> vegetation <strong>and</strong> animal communities .<br />

Since grassl<strong>and</strong>s operate as ecosystems , it may be futile to try to isolate causal<br />

factors, since some internal components may interact with o<strong>the</strong>rs to change<br />

<strong>the</strong> nature <strong>of</strong> <strong>the</strong> system. For example, Larson (1940) considered that heavy<br />

bison grazing prior to settlement helped maintain <strong>the</strong> short-grass prairie .<br />

However, bison evolved under grassl<strong>and</strong> conditions – vegetation, climate,<br />

o<strong>the</strong>r herbivores <strong>and</strong> predators – <strong>and</strong> attaching causality to one component<br />

may involve circular reasoning.<br />

Sauer (1950), in contrast, argued that grassl<strong>and</strong>s were maintained by periodic<br />

fires. Without fires, grassl<strong>and</strong>s would progress to woodl<strong>and</strong>s or forest .<br />

Indeed, grassl<strong>and</strong>s <strong>of</strong> central North America have developed under frequent<br />

fire regimes, caused both naturally <strong>and</strong> by man (Flores, 1999; Sauer, 1950).<br />

Flores (1999) suggested that natural lightning fires had results that differed<br />

from those set by native Americans. He argued that maintenance <strong>of</strong> sou<strong>the</strong>rn<br />

Great Plains grassl<strong>and</strong>s populated by large grazing animals depended on fire<br />

management by native Americans.<br />

One prominent feature <strong>of</strong> grassl<strong>and</strong>s is a variable climate, with periodic<br />

droughts a common feature (Dix, 1964). The drought <strong>of</strong> <strong>the</strong> 1930s that resulted<br />

in <strong>the</strong> dust bowl in <strong>the</strong> Great Plains has been well documented (Albertson <strong>and</strong><br />

Weaver, 1942; Robertson, 1939; Savage, 1937; Weaver <strong>and</strong> Albertson, 1936,<br />

1939, 1940; Whitman, Hanson <strong>and</strong> Peterson, 1943). During <strong>the</strong> drought <strong>of</strong><br />

<strong>the</strong> 1930s, blue grama abundance was reduced dramatically (by as much as<br />

70 to 80 percent) in Kansas (Weaver <strong>and</strong> Albertson, 1956). In North Dakota<br />

mixed prairie, blue grama was reduced to about 40 percent <strong>of</strong> pre-drought<br />

(1933) levels in 1936–37 (Whitman, Hanson <strong>and</strong> Peterson, 1943). O<strong>the</strong>r species<br />

negatively affected by <strong>the</strong> drought were western wheatgrass , needle-<strong>and</strong>-thread<br />

<strong>and</strong> prairie junegrass (Koeleria macrantha ). The one species not affected<br />

by <strong>the</strong> drought was threadleaf sedge (Carex filifolia ) (Whitman, Hanson <strong>and</strong><br />

Peterson, 1943).<br />

In western Nebraska, tree ring analyses indicated that over <strong>the</strong> last 400 years<br />

nearly 160 were “drought ” years <strong>and</strong> 237 “wet” years (Weakly, 1943). Borchert<br />

(1950) reported that drought years tended to be clumped, with an average<br />

duration <strong>of</strong> nearly 13 years, compounding <strong>the</strong> effects <strong>of</strong> <strong>the</strong> drought.<br />

Geologically, <strong>the</strong> Great Plains consists <strong>of</strong> a valley between <strong>the</strong> relatively<br />

young Rocky Mountains to <strong>the</strong> west <strong>and</strong> <strong>the</strong> older Appalachian chain to <strong>the</strong><br />

east. The valley is drained by <strong>the</strong> Missouri <strong>and</strong> Mississippi River systems ,<br />

which have carried sediment from both <strong>the</strong> Rocky <strong>and</strong> Appalachian Mountains<br />

<strong>and</strong> sorted <strong>and</strong> deposited <strong>the</strong>se sediments (Dix, 1964).<br />

In geological time, <strong>the</strong> central North America n grassl<strong>and</strong>s have undergone<br />

many transformations since <strong>the</strong> late Cretaceous period (Axelrod, 1958; Dix, 1964;<br />

Donart, 1984). At this time <strong>the</strong> deciduous Pan Tropical Forest covered most <strong>of</strong> <strong>the</strong><br />

present USA (Axelrod, 1979). From <strong>the</strong>se forests, two distinct forests developed<br />

during Eocene times: <strong>the</strong> Arcto-tertiary <strong>and</strong> Neotropical-tertiary forests (Dix,


246<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

1964; Axelrod, 1958). Both <strong>of</strong> <strong>the</strong>se forests contributed to <strong>the</strong> central grassl<strong>and</strong>s<br />

that probably developed in more recent times (Pliocene <strong>and</strong> Pleistocene series) as<br />

<strong>the</strong> forests retreated (Dix, 1964). These vegetational shifts were also accompanied<br />

by climatic shifts, geologic events <strong>and</strong> changing patterns <strong>of</strong> herbivore utilization<br />

<strong>of</strong> <strong>the</strong>se grassl<strong>and</strong>s. Glaciation during <strong>the</strong> Pleistocene had dramatic influences on<br />

l<strong>and</strong>scapes <strong>and</strong> vegetation , but <strong>the</strong> influence on <strong>the</strong> grassl<strong>and</strong>s is not completely<br />

understood (Dix, 1964; Flint, 1957; Love, 1959).<br />

Current status <strong>of</strong> grassl<strong>and</strong> research <strong>and</strong> management<br />

Traditionally, research on grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> Great Plains has been conducted<br />

by <strong>the</strong> L<strong>and</strong> Grant Universities. These were established by <strong>the</strong> Morrill Act<br />

<strong>of</strong> 1862, whereby one university in each state was designated <strong>the</strong> L<strong>and</strong> Grant<br />

University (Holechek, Pieper <strong>and</strong> Herbel, 2001). The Hatch Act <strong>of</strong> 1887 <strong>and</strong><br />

<strong>the</strong> Smith-Lever Act <strong>of</strong> 1914 completed <strong>the</strong> tripartite focus <strong>of</strong> <strong>the</strong> L<strong>and</strong> Grant<br />

Universities in teaching, research <strong>and</strong> service (National Research Council,<br />

1996). Each <strong>of</strong> <strong>the</strong>se universities in <strong>the</strong> grassl<strong>and</strong> states has been conducting<br />

research into agricultural practices <strong>and</strong> <strong>the</strong>y have received research support<br />

from federal, state <strong>and</strong> o<strong>the</strong>r grant sources. Departments involved in <strong>the</strong>se<br />

efforts have been those <strong>of</strong> Agronomy, Horticulture, Agricultural Economics,<br />

Animal Science <strong>and</strong> allied disciplines. The Cooperative Extension Service has<br />

served as <strong>the</strong> link between <strong>the</strong> research <strong>and</strong> application by farmers <strong>and</strong> ranchers<br />

(see Plates 6.20 <strong>and</strong> 6.21 with examples from Canada). Range research in <strong>the</strong><br />

L<strong>and</strong> Grant Universities has been conducted by researchers attached to o<strong>the</strong>r<br />

departments in <strong>the</strong> main grassl<strong>and</strong> states: with Animal Science in Montana,<br />

Plate 6.20<br />

Plant identification by range management <strong>of</strong>ficers on native prairie in <strong>the</strong> mixed -<br />

grass zone at Big Muddy, Saskatchewan, Canada.<br />

MAE ELSINGER


MAE ELSINGER<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 247<br />

Plate 6.21<br />

Pasture sampling in <strong>the</strong> mixed -grass zone, Saskatchewan, Canada.<br />

New Mexico, North <strong>and</strong> South Dakota; <strong>and</strong> with Agronomy in Nebraska,<br />

Kansas <strong>and</strong> Oklahoma. The School <strong>of</strong> Forestry at <strong>the</strong> University <strong>of</strong> Montana<br />

also has a range faculty <strong>of</strong>fering degrees in Range Science (Bedell, 1999).<br />

Colorado State University has a separate Range Science Department, as does<br />

Texas Tech (with Wildlife Science) <strong>and</strong> Texas A & M University.<br />

Research in grassl<strong>and</strong> agriculture has also been conducted by <strong>the</strong> Agriculture<br />

Research Service. Experimental stations have concentrated on range <strong>and</strong> livestock<br />

problems in <strong>the</strong> Nor<strong>the</strong>rn Great Plains in North Dakota; Sydney,<br />

Montana (now closed); Central Plains in Colorado; <strong>and</strong> <strong>the</strong> Sou<strong>the</strong>rn Great<br />

Plains in Oklahoma. Research conducted at <strong>the</strong> universities <strong>and</strong> Agricultural<br />

Research Service (ARS) experimental stations has been broad based, featuring<br />

both basic <strong>and</strong> applied research.<br />

Grassl<strong>and</strong> research has also been conducted by ecologists in Biology or<br />

Botany Departments in Great Plains states. The University <strong>of</strong> Nebraska was in<br />

<strong>the</strong> forefront <strong>of</strong> ecological research under <strong>the</strong> direction <strong>of</strong> Dr John E. Weaver<br />

during <strong>the</strong> 1930s <strong>and</strong> 1940s, although earlier scientists, including Dr Frederic<br />

E. Clements, were instrumental in establishing ecology at <strong>the</strong> University <strong>of</strong><br />

Nebraska (Tobey, 1981). Drs Clair Kucera at <strong>the</strong> University <strong>of</strong> Missouri,<br />

Warren Whitman at North Dakota State University, Lloyd C. Hulbert at<br />

Kansas State University, William Penfound, Elroy Rice <strong>and</strong> Paul G. Risser at<br />

Oklahoma State University <strong>and</strong> John Aikman at Iowa State University also<br />

had strong grassl<strong>and</strong> research programmes (Kucera, 1973; Tobey, 1981).


248<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

In <strong>the</strong> late 1960s <strong>and</strong> early 1970s, ano<strong>the</strong>r major research effort in grassl<strong>and</strong><br />

ecology was launched with <strong>the</strong> International Biological Programme (IBP)<br />

(Golley, 1993). The Grassl<strong>and</strong> Biome was established with its focus at Colorado<br />

State University, with Dr George M. Van Dyne as Director. Satellite research<br />

areas were established at <strong>the</strong> Cottonwood site in mixed prairie vegetation in<br />

South Dakota (operated by South Dakota State University); tall-grass vegetation<br />

in Oklahoma at <strong>the</strong> Osage site (operated by Oklahoma State University);<br />

<strong>and</strong> short-grass vegetation at <strong>the</strong> Pantex Site in Texas (operated by Texas Tech<br />

University) <strong>and</strong> <strong>the</strong> Pawnee Site in Colorado (operated by Colorado State<br />

University) (Van Dyne, Jameson <strong>and</strong> French, 1970). O<strong>the</strong>r grassl<strong>and</strong> sites, such as<br />

desert grassl<strong>and</strong>, mountain grassl<strong>and</strong> <strong>and</strong> California annual grassl<strong>and</strong>, were also<br />

included in <strong>the</strong> project. Although <strong>the</strong> project generated much ecological information<br />

<strong>and</strong> extensive literature on aspects <strong>of</strong> grassl<strong>and</strong> ecology, <strong>the</strong> goal <strong>of</strong> publishing<br />

a syn<strong>the</strong>sis volume for each <strong>of</strong> <strong>the</strong> grassl<strong>and</strong> types was not realized (Golley,<br />

1993). Only <strong>the</strong> tall-grass volume was actually published (Risser et al., 1981).<br />

The o<strong>the</strong>r major outcome <strong>of</strong> <strong>the</strong> IBP programme was establishment <strong>of</strong><br />

Long-Term Ecological Research (LTER) sites. The argument was made that<br />

ecological problems could only be approached by looking at dynamics <strong>of</strong><br />

ecosystems in a long time frame – 10 years or more. The Conyza Prairie in<br />

Kansas (Knapp et al., 1998) <strong>and</strong> <strong>the</strong> Central Plains Experimental Range (<strong>the</strong><br />

old Pawnee Site <strong>of</strong> <strong>the</strong> IBP) are currently LTER sites.<br />

Great Plains agriculture is now facing many challenges from various<br />

sources. This analysis will focus on only a few <strong>of</strong> <strong>the</strong>se. In <strong>the</strong> Great Plains,<br />

as well as most <strong>of</strong> <strong>the</strong> West, many small towns <strong>and</strong> communities are facing<br />

extreme economic conditions <strong>and</strong> many are being ab<strong>and</strong>oned (Flores, 1999;<br />

Licht, 1997). Licht (1997) reported that 81 percent <strong>of</strong> <strong>the</strong> Great Plains counties<br />

lost population between 1980 <strong>and</strong> 1990. There are probably multiple reasons<br />

for this decline in rural communities such as reliance on railroads; influence <strong>of</strong><br />

technology <strong>and</strong> government; better transportation to larger urban areas; location<br />

<strong>of</strong> agricultural agents in county seats; <strong>and</strong> governmental policies (Burns,<br />

1982). However, Licht (1997) argues that:<br />

“…<strong>the</strong> main reason for <strong>the</strong> collapse <strong>of</strong> rural communities in <strong>the</strong> Great Plains is indisputable; <strong>the</strong><br />

region’s inhospitable climate, lack <strong>of</strong> economically valuable natural resources , high transportation<br />

costs <strong>and</strong> o<strong>the</strong>r factors meant that it was never capable <strong>of</strong> supporting numerous vibrant<br />

economies with high human densities.”<br />

Along with <strong>the</strong> constriction <strong>of</strong> rural communities , many agricultural enterprises<br />

have been caught in an economic squeeze, with, on <strong>the</strong> one h<strong>and</strong>, high<br />

production costs <strong>and</strong>, on <strong>the</strong> o<strong>the</strong>r, low prices for <strong>the</strong>ir products. This is true in<br />

both intensive agriculture <strong>and</strong> <strong>the</strong> livestock sector. Consequently, many smallscale<br />

operators (such as family farms ) are no longer able to operate economically<br />

(Licht, 1997).<br />

O<strong>the</strong>r biological problems relate to environmental concerns. Even though<br />

Lauenroth et al. (1994) considered that grazing l<strong>and</strong>s in <strong>the</strong> Great Plains had


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 249<br />

changed little since European settlement, farming <strong>and</strong> o<strong>the</strong>r disturbances have<br />

had a great effect. For example, Klopatek et al. (1979) showed that most counties<br />

in <strong>the</strong> Great Plains had lost some <strong>of</strong> <strong>the</strong> potential natural vegetation , with<br />

<strong>the</strong> greatest impact in <strong>the</strong> mesic eastern edge <strong>and</strong> <strong>the</strong> least disturbed being <strong>the</strong><br />

more xeric western short-grass plains. From 85 to 95 percent <strong>of</strong> <strong>the</strong> bluestem<br />

prairie vegetation types had been converted to cropl<strong>and</strong> (Sieg, Fla<strong>the</strong>r <strong>and</strong><br />

McCanny, 1999). These types <strong>of</strong> disturbance <strong>and</strong> vegetation shifts represent<br />

habitat fragmentation for many wildlife species that developed in unbroken<br />

tracts <strong>of</strong> grassl<strong>and</strong> . Conversion to cropl<strong>and</strong> created habitats for o<strong>the</strong>r species,<br />

but loss <strong>of</strong> both plant <strong>and</strong> animal diversity in <strong>the</strong> grassl<strong>and</strong> is a concern<br />

(Sieg, Fla<strong>the</strong>r <strong>and</strong> McCanny, 1999; Leach <strong>and</strong> Givnish, 1996; Licht, 1997).<br />

For example Sieg, Fla<strong>the</strong>r <strong>and</strong> McCanny (1999) reported that in <strong>the</strong> Canadian<br />

province <strong>of</strong> Saskatchewan <strong>and</strong> six Great Plains states in <strong>the</strong> USA , 19 percent<br />

<strong>of</strong> <strong>the</strong> breeding bird species declined in numbers from 1966 to 1996. However,<br />

<strong>the</strong> number <strong>of</strong> listed, threatened <strong>and</strong> endangered (LT&E) plant <strong>and</strong> animal<br />

species is relatively low compared with o<strong>the</strong>r regions <strong>of</strong> <strong>the</strong> country (Ostlie<br />

et al., 1997; Sieg, 1999). No pattern <strong>of</strong> LT&E species could be discerned for<br />

<strong>the</strong> Great Plains. Large blocks <strong>of</strong> counties showed no known LT&E species,<br />

up to a maximum <strong>of</strong> 9–12 species. These counties were scattered throughout<br />

<strong>the</strong> Great Plains (Sieg, 1999). Examples <strong>of</strong> LT&E species are <strong>the</strong> black -tailed<br />

prairie dog (Cynomys ludovicianus), <strong>the</strong> black-footed ferret (Mustela nigrepes)<br />

<strong>and</strong> <strong>the</strong> western prairie fringed orchid (Platan<strong>the</strong>ra praeclara) (Sieg, Fla<strong>the</strong>r<br />

<strong>and</strong> McCanny, 1999).<br />

O<strong>the</strong>r environmental concerns regard use <strong>of</strong> pesticides <strong>and</strong> herbicides, commercial<br />

fertilizers, grazing by introduced domestic livestock, status <strong>of</strong> riparian<br />

areas <strong>and</strong> introduction <strong>of</strong> invasive plants <strong>and</strong> animals. Crested wheatgrass was<br />

introduced into <strong>the</strong> Great Plains in <strong>the</strong> early 1900s (Holechek, 1981; Rogler,<br />

1960). The species played a major role in restoration <strong>of</strong> ab<strong>and</strong>oned wheat fields<br />

in <strong>the</strong> nor<strong>the</strong>rn Great Plains in <strong>the</strong> 1930s (Rogler, 1960), but some workers<br />

regard crested wheatgrass as an invader species leading to near monocultures.<br />

One <strong>of</strong> <strong>the</strong> most troublesome introduced plant species is leafy spurge<br />

(Euphorbia esula ) (Plate 6.22), a perennial forb accidentally introduced into <strong>the</strong><br />

USA from eastern Europe or western Asia (Biesboer <strong>and</strong> Koukkari, 1992). It is<br />

an aggressive weed that currently infests over one million hectares in <strong>the</strong> USA<br />

(DiTomaso, 2000) <strong>and</strong> over 650 000 ha in <strong>the</strong> nor<strong>the</strong>rn Great Plains (Leistritz,<br />

Leitch <strong>and</strong> Bangsund, 1995). Estimates <strong>of</strong> loss <strong>of</strong> livestock grazing because<br />

<strong>of</strong> leafy spurge encroachment onto nor<strong>the</strong>rn Great Plains rangel<strong>and</strong>s were<br />

736 000 Animal Unit Months (AUMs), or US$ 37 million annually (Leistritz,<br />

Leitch <strong>and</strong> Bangsund, 1995).<br />

Introduction <strong>of</strong> annual grasses such as Japanese brome (Bromus japonicus )<br />

has also altered grassl<strong>and</strong> vegetation (Haferkamp et al., 1993; Haferkamp,<br />

Heitschmidt <strong>and</strong> Karl, 1997). Japanese brome occurs throughout <strong>the</strong> Great<br />

Plains (Hitchcock, 1950) <strong>and</strong> <strong>of</strong>ten competes with native perennial grasses.


250<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 6.22<br />

Leafy spurge (Euphorbia esula ) infestation on s<strong>and</strong>y soils in <strong>the</strong> mixed -grass zone,<br />

Saskatchewan, Canada.<br />

Haferkamp, Heitschmidt <strong>and</strong> Karl (1997) reported that presence <strong>of</strong> Japanese<br />

brome reduced yield <strong>of</strong> western wheatgrass in eastern Montana, but removal<br />

<strong>of</strong> Japanese brome reduced total st<strong>and</strong>ing crop since o<strong>the</strong>r species did not completely<br />

replace <strong>the</strong> brome. In addition to economic consequences, Huenneke<br />

(1995) <strong>and</strong> Hobbs <strong>and</strong> Huenneke (1992) listed <strong>the</strong> following ecological impacts<br />

<strong>of</strong> plant invasions (for lack <strong>of</strong> a more appropriate word): spread <strong>of</strong> toxic substances,<br />

replacement <strong>of</strong> native species, alteration <strong>of</strong> hydrological characteristics,<br />

alteration <strong>of</strong> soil properties, <strong>and</strong> changed nutrient cycling.<br />

O<strong>the</strong>r suggestions for managing <strong>the</strong> Great Plains include increasing <strong>the</strong><br />

number <strong>of</strong> national grassl<strong>and</strong>s <strong>and</strong> developing a “buffalo commons” for certain<br />

portions <strong>of</strong> <strong>the</strong> Great Plains (Licht, 1997; Popper <strong>and</strong> Popper, 1994). Although<br />

such proposals have appeal to some environmental groups, Licht (1997) discusses<br />

several limitations <strong>of</strong> such proposals.<br />

Riparian areas in <strong>the</strong> Great Plains are also <strong>of</strong> concern, as <strong>the</strong>y are in many<br />

o<strong>the</strong>r areas <strong>of</strong> <strong>the</strong> country (Johnson, 1999). These systems occupy less than one<br />

percent <strong>of</strong> <strong>the</strong> l<strong>and</strong> surface, yet are vitally important for catchment processes;<br />

plant <strong>and</strong> animal diversity; <strong>and</strong> uses by man, including both industrial <strong>and</strong> agricultural<br />

purposes (Johnson <strong>and</strong> McCormick, 1979; Swanson, 1988). Riparian<br />

systems in <strong>the</strong> Great Plains have been modified by human activities such as<br />

clearing for agriculture, grazing , canalization, damming <strong>and</strong> water diversion<br />

(Johnson, 1999). Johnson (1999) presents case studies on how <strong>the</strong>se activities<br />

have altered <strong>the</strong> Missouri River in North Dakota, <strong>the</strong> Platte River in Nebraska<br />

<strong>and</strong> Foster Creek in South Dakota.<br />

MAE ELSINGER


<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> central North America 251<br />

FUTURE OF THE GREAT PLAINS<br />

It is likely that agriculture will continue to dominate <strong>the</strong> Great Plains into <strong>the</strong><br />

foreseeable future. While technology will continue to develop new approaches,<br />

such as no-till cultivation , more efficient use <strong>of</strong> water <strong>and</strong> fertilizer , <strong>and</strong><br />

methods to survey <strong>and</strong> monitor l<strong>and</strong>scapes, some <strong>of</strong> <strong>the</strong>se technologies will be<br />

difficult to apply because <strong>of</strong> economic, sociological <strong>and</strong> biological constraints.<br />

For example, we now have <strong>the</strong> technology to consider management at<br />

relatively large scales (Ludwig et al., 1997). Modern tools. including remote<br />

sensing (Tueller, 1989), geographical information systems (GIS ) <strong>and</strong> global<br />

positioning systems (GPS), provide <strong>the</strong> opportunity to consider l<strong>and</strong> management<br />

<strong>and</strong> ecological situations across l<strong>and</strong>scapes <strong>and</strong> habitats. However, <strong>the</strong>se<br />

approaches need to be applied with consideration <strong>of</strong> some <strong>of</strong> <strong>the</strong> limitations,<br />

such as lack <strong>of</strong> adequate ground truth data for remote sensing <strong>and</strong> GIS applications.<br />

Development <strong>of</strong> l<strong>and</strong>scape -scale planning for <strong>the</strong> Great Plains might<br />

entail consideration <strong>of</strong> crop agriculture areas, riparian habitats <strong>and</strong> “natural ”<br />

vegetation types . The extent <strong>and</strong> arrangement <strong>of</strong> agricultural areas <strong>and</strong> grassl<strong>and</strong><br />

vegetation types would be challenging, even if all those concerned could<br />

agree on percentages <strong>of</strong> l<strong>and</strong> areas devoted to each <strong>and</strong> <strong>the</strong> spatial distribution<br />

<strong>of</strong> l<strong>and</strong> devoted to different or several uses because <strong>of</strong> differences in l<strong>and</strong> ownership<br />

patterns <strong>and</strong> extent <strong>of</strong> agricultural development . Developments such as<br />

<strong>the</strong> buffalo commons would be difficult to effect because <strong>of</strong> <strong>the</strong> large extent <strong>of</strong><br />

private l<strong>and</strong> in <strong>the</strong> region. Eventually, lack <strong>of</strong> water resources will have heavy<br />

impacts on both agricultural <strong>and</strong> industrial development.<br />

Major cities in <strong>the</strong> Great Plains may not exp<strong>and</strong> into adjacent farml<strong>and</strong> <strong>and</strong><br />

wild l<strong>and</strong> to <strong>the</strong> same extent as those in o<strong>the</strong>r western cities, but <strong>the</strong>re will<br />

probably be some expansion. Cities along <strong>the</strong> western edge <strong>of</strong> <strong>the</strong> Great Plains<br />

– Fort Collins, Denver, Colorado Springs, Pueblo, etc. – will continue to grow<br />

because <strong>of</strong> favourable perceptions <strong>of</strong> location near <strong>the</strong> mountains.<br />

Livestock enterprises, although stressed economically, will probably remain<br />

relatively stable. Walker (1995) stated that grazing systems have largely not<br />

changed <strong>the</strong> selective nature <strong>of</strong> livestock grazing. Stocking rate is <strong>the</strong> primary<br />

factor determining livestock <strong>and</strong> vegetational responses (Holechek,<br />

1988; Walker, 1995). Competition with forages produced under irrigation will<br />

probably continue to erode livestock production from rangel<strong>and</strong>s in <strong>the</strong> Great<br />

Plains (Glimp, 1991).<br />

Genetic modification <strong>of</strong> both plants <strong>and</strong> animals has <strong>the</strong> potential to change<br />

plant <strong>and</strong> animal agriculture in <strong>the</strong> Great Plains (Walker, 1997). However, public<br />

acceptance <strong>of</strong> genetically modified plants <strong>and</strong> animals will influence how<br />

fast <strong>the</strong>se technologies are used.<br />

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Sou<strong>the</strong>rn Great Plains. pp. 694–696, in: D.N. Hyder (ed). Proceedings <strong>of</strong> <strong>the</strong> First<br />

International Rangel<strong>and</strong> Congress. Denver, Colorado, USA , 1978. Society for<br />

Range Management, Denver, Colorado, USA.<br />

Wright, H.A. & Bailey, A.W. 1982. Fire ecology: United States <strong>and</strong> sou<strong>the</strong>rn Canada.<br />

New York, New York, USA : John Wiley <strong>and</strong> Sons.<br />

Yoakum, J.D., O’Gara, B.W. & Howard, V.W. Jr. 1996. Pronghorn on western<br />

rangel<strong>and</strong>s. pp. 211–226, in: P.R. Krausmann (ed). Rangel<strong>and</strong> wildlife . Denver,<br />

Colorado, USA : Society for Range Management.


Grazing management in Mongolia 265<br />

Chapter 7<br />

Grazing management in Mongolia<br />

J.M. Suttie<br />

SUMMARY<br />

Eighty percent <strong>of</strong> Mongolia is extensive grazing <strong>and</strong> a fur<strong>the</strong>r ten percent is forest<br />

or forest scrub that is also grazed. Its climate is arid to semi -arid <strong>and</strong> <strong>the</strong> frostfree<br />

period <strong>of</strong> most <strong>of</strong> <strong>the</strong> steppe is one hundred days; transhumant herding on<br />

natural pasture is <strong>the</strong> only sustainable way <strong>of</strong> using such l<strong>and</strong>. Cattle , with yak in<br />

<strong>the</strong> higher areas, horses, camels , sheep <strong>and</strong> goats are raised; local breeds are used.<br />

During <strong>the</strong> past century management has changed from traditional transhumance,<br />

to collectives that retained herd mobility from <strong>the</strong> fifties, to private herding from<br />

1992. While livestock are now privately owned, grazing rights have not yet been<br />

allocated; this causes problems for maintenance <strong>of</strong> pastoral infrastructure <strong>and</strong><br />

respect <strong>of</strong> good grazing practice. Stock numbers have risen since privatization<br />

<strong>and</strong> are now above <strong>the</strong> previous high <strong>of</strong> 1950; weakness <strong>of</strong> <strong>the</strong> traditional export<br />

market <strong>and</strong> increase in <strong>the</strong> number <strong>of</strong> herding families are contributing factors.<br />

Pasture condition is generally sound, although, recently, localized overgrazing<br />

has occurred close to urban centres <strong>and</strong> main routes. Considerable tracts are<br />

undergrazed because <strong>of</strong> breakdown <strong>of</strong> water supplies or remoteness from services.<br />

Major improvement <strong>of</strong> grazing management <strong>and</strong> pastoral production requires<br />

enactment <strong>of</strong> legislation appropriate to <strong>the</strong> new management system <strong>and</strong> organization<br />

<strong>of</strong> <strong>the</strong> herding population. Increased family hay production from natural<br />

herbage would improve overwintering survival. Transhumant herding <strong>of</strong> hardy,<br />

local stock, has proved sustainable over centuries <strong>and</strong> is still thriving.<br />

INTRODUCTION<br />

Mongolia is one <strong>of</strong> <strong>the</strong> few countries that is truly pastoral <strong>and</strong> its economy<br />

depends largely on livestock, with little crop production, forestry or industry.<br />

The cold , arid climate is only suitable for extensive grazing <strong>and</strong> transhumance<br />

with local, hardy breeds, which are still used, with few inputs o<strong>the</strong>r than <strong>the</strong><br />

hard work <strong>and</strong> skill <strong>of</strong> <strong>the</strong> herders (Plate 7.1). This ancient grazing system has<br />

proved productive <strong>and</strong> sustainable through <strong>the</strong> political changes <strong>of</strong> <strong>the</strong> past<br />

century. The grazing l<strong>and</strong>s are in good condition <strong>and</strong> <strong>the</strong> local breeds intact <strong>and</strong><br />

thriving; this contrasts with <strong>the</strong> situation in some neighbouring countries that<br />

are now facing <strong>the</strong> consequences <strong>of</strong> excessive use <strong>of</strong> exotic breeds <strong>and</strong> reliance<br />

on bought, imported winter feed.<br />

Mongolia lies between 42° <strong>and</strong> 52°N <strong>and</strong> 88° <strong>and</strong> almost 120°E. About half<br />

<strong>the</strong> l<strong>and</strong> is above 1 400 m. It is completely l<strong>and</strong>locked, bordering <strong>the</strong> Russian


266<br />

Figure 7.1<br />

Map <strong>of</strong> Mongolia .<br />

Plate 7.1<br />

Ger <strong>and</strong> sheep fold on summer pastures – Arkhangai.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Federation <strong>and</strong> China (Figure 7.1) <strong>and</strong> with well -defined natural boundaries<br />

delimiting <strong>the</strong> Mongolian steppe: <strong>the</strong> Altai <strong>and</strong> Gobi Altai mountains to <strong>the</strong><br />

west <strong>and</strong> southwest, <strong>the</strong> Khangai mountains in <strong>the</strong> central north, <strong>the</strong> Gobi<br />

J.M. SUTTIE


Grazing management in Mongolia 267<br />

Figure 7.2<br />

Extent <strong>of</strong> grassl<strong>and</strong>s in Mongolia .<br />

desert to <strong>the</strong> south <strong>and</strong> <strong>the</strong> taiga to <strong>the</strong> north; <strong>the</strong>se facilitate nei<strong>the</strong>r trade nor<br />

transport. Access to <strong>the</strong> sea is through <strong>the</strong> Chinese port <strong>of</strong> Tianjin, 1 000 km<br />

from <strong>the</strong> frontier. There are very few hard-surfaced roads; <strong>the</strong> main Russia-<br />

China railway traverses <strong>the</strong> country, but <strong>the</strong>re are few internal lines. Livestock<br />

move to market by droving; o<strong>the</strong>r commodities have to be transported over<br />

poor, unsurfaced roads <strong>and</strong> tracks. The pastoral <strong>and</strong> climatic situation has<br />

close parallels in neighbouring parts <strong>of</strong> Inner Asia: Buryatia, Tuva <strong>and</strong> some<br />

Chinese regions (Inner Mongolia Autonomous Region <strong>and</strong> <strong>the</strong> nor<strong>the</strong>rn part<br />

<strong>of</strong> Xinjiang Autonomous Region), although <strong>the</strong> Mongolian economy <strong>and</strong> lifestyle<br />

are much more pastoral <strong>and</strong> its crop sector vestigial. Under slightly different<br />

climatic conditions, experience in <strong>the</strong> transition from collective to private<br />

herding is also relevant to parts <strong>of</strong> Central Asia – Kazakhstan , Kyrgyzstan <strong>and</strong><br />

Tajikistan. Mongolia’s pastoral industry was less drastically modified by collectivization<br />

than that <strong>of</strong> <strong>the</strong> CIS countries in that herder mobility was maintained<br />

as <strong>the</strong> key to assuring year-round feeding <strong>and</strong> risk avoidance , <strong>and</strong> hardy, local<br />

breeds remained <strong>the</strong> basis <strong>of</strong> <strong>the</strong> industry. Technologies <strong>and</strong> strategies developed<br />

in Mongolia may have relevance throughout <strong>the</strong> region.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>and</strong> arid grazing cover 1 210 000 km 2 (80 percent <strong>of</strong> <strong>the</strong> l<strong>and</strong> area<br />

– see Figure 7.2) <strong>and</strong> forest <strong>and</strong> forest scrub 150 000 km 2 (10 percent). Some<br />

90 000 km 2 are said to be used in settlement <strong>and</strong> infrastructure <strong>and</strong> 52 000 km 2<br />

in national parks. The arable area is under 10 000 km 2 , all mechanized , largescale<br />

farms , although much fell out <strong>of</strong> cultivation following <strong>the</strong> demise <strong>of</strong> <strong>the</strong><br />

state farms (about 7 000 km 2 are estimated to be recoverable). About 80 percent<br />

<strong>of</strong> <strong>the</strong> country, <strong>the</strong>refore, is extensive grazing exploited by traditional, pastoral<br />

methods (Plate 7.2). The five main biogeographical zones are:<br />

• high mountains (70 000 km 2 );


268<br />

TABLE 7.1<br />

L<strong>and</strong> resources <strong>of</strong> Mongolia .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

L<strong>and</strong> use Proportion (%) Area (km 2 )<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>and</strong> arid grazing 80.7 1 210 000<br />

Forest 6.9 104 000<br />

Saxaul forest in Gobi 3.1 46 000<br />

Arable (1) 0.5 7 000<br />

National parks 3.5 52 000<br />

Hay l<strong>and</strong> (1) 1.3 20 000<br />

Roads, buildings <strong>and</strong> miscellaneous 4.0 61 000<br />

Total l<strong>and</strong> area<br />

NOTES: (1) Figures from <strong>the</strong> early 1990s. Much <strong>of</strong> that is now fallow .<br />

SOURCE: Ministry <strong>of</strong> Agriculture <strong>and</strong> Food.<br />

100 1 500 000<br />

Plate 7.2<br />

Mountain pastures above larch forest with yak – Zaghvan.<br />

• mountain taiga (60 000 km 2 );<br />

• forest -mountain <strong>and</strong> steppe – mixed forest <strong>and</strong> grazing (370 000 km 2 );<br />

• dry steppe grassl<strong>and</strong> (410 000 km 2 ); <strong>and</strong><br />

• Gobi – desert steppe <strong>and</strong> desert (580 000 km 2 ).<br />

Extensive livestock production is, by far, <strong>the</strong> country’s major l<strong>and</strong> use <strong>and</strong><br />

industry, as can be seen from Table 7.1.<br />

The level-to-undulating topography <strong>of</strong> <strong>the</strong> Mongolian plateau is frequently<br />

interrupted by low mountain ranges <strong>and</strong> is surrounded by rough topography.<br />

Luvic xerosols associated with Orthic Solonchaks occupy <strong>the</strong> greatest part <strong>of</strong><br />

<strong>the</strong> l<strong>and</strong>: <strong>the</strong> steppes <strong>and</strong> <strong>the</strong> Gobi desert . Associations <strong>of</strong> Haplic Yermosols<br />

<strong>and</strong> Orthic Solonchaks also occur. Luvic Kastanozems associated with Orthic<br />

Solonchaks occupy a large area in <strong>the</strong> north <strong>and</strong> east, <strong>the</strong> best <strong>of</strong> Mongolia ’s<br />

J.M. SUTTIE


Grazing management in Mongolia 269<br />

pasture l<strong>and</strong>s. Mountain ranges are covered by Lithosols associated with Luvic<br />

Xerosols or Haplic Yermosols (FAO/UNESCO, 1978).<br />

The climate is cold , semi -arid <strong>and</strong> markedly continental. High mountain<br />

ranges isolate <strong>the</strong> country from <strong>the</strong> influence <strong>of</strong> <strong>the</strong> Atlantic <strong>and</strong> Pacific climates.<br />

The Siberian anticyclone determines <strong>the</strong> low temperature in winter <strong>and</strong><br />

<strong>the</strong> low precipitation . The frost-free period at <strong>the</strong> capital is around 100 days.<br />

There are four distinct seasons: a windy spring with variable wea<strong>the</strong>r – spring<br />

rain is especially valuable to get <strong>the</strong> pasture growth started before <strong>the</strong> main<br />

summer rains; a hot summer, with <strong>the</strong> main rains falling in <strong>the</strong> earlier part; a<br />

cool autumn ; <strong>and</strong> a long cold winter, with temperatures as low as -30°C. The<br />

growing season is, <strong>the</strong>refore, generally limited to about three months.<br />

Precipitation is low, much falling between June <strong>and</strong> September. The largest<br />

grazing areas, <strong>the</strong> steppe <strong>and</strong> <strong>the</strong> mountain steppe <strong>and</strong> forest , get between<br />

200 mm <strong>and</strong> 300 mm annually; <strong>the</strong> desert steppe receives between 100 <strong>and</strong><br />

200 mm; <strong>the</strong> desert gets below 100 mm; only <strong>the</strong> nor<strong>the</strong>rn zone has over<br />

300 mm. Most <strong>of</strong> <strong>the</strong> precipitation returns to <strong>the</strong> atmosphere through evapotranspiration;<br />

about four percent infiltrates to <strong>the</strong> aquifer <strong>and</strong> six percent<br />

contributes to surface flow. Strong winds (with velocities in excess <strong>of</strong> 20 m/s)<br />

are common in spring <strong>and</strong> early summer , <strong>and</strong> <strong>the</strong>n dust storms can bring disaster<br />

to people <strong>and</strong> livestock. Such storms are commonest in <strong>the</strong> drier tracts.<br />

The vast majority <strong>of</strong> <strong>the</strong> nation, about 80 percent, is Mongol; <strong>the</strong> extreme<br />

west is inhabited by Kazakhs <strong>and</strong> <strong>the</strong>re are some reindeer people in <strong>the</strong> extreme<br />

north. Buryats, Tuvans <strong>and</strong> o<strong>the</strong>r Mongol-related peoples make up <strong>the</strong> rest.<br />

The total population has risen sharply, more rapidly than livestock numbers,<br />

tripling since 1950 (see Table 7.2). The degree <strong>of</strong> urbanization rose very steeply<br />

on collectivization. Originally urban dwellers were only 15 percent, but ten<br />

years on this had risen to 40 percent <strong>and</strong> by 1989, <strong>the</strong> end <strong>of</strong> <strong>the</strong> collective<br />

period, <strong>the</strong> urban population was 57 percent, including those in <strong>the</strong> sum centres.<br />

The 1997 figures show a slight decrease in <strong>the</strong> proportion (but not number) <strong>of</strong><br />

town dwellers, perhaps reflecting some families returning to herding .<br />

The population rise since 1950 has been large <strong>and</strong> rapid: <strong>the</strong> projections for<br />

<strong>the</strong> next twenty years (Table 7.3) show no slowing down, but ra<strong>the</strong>r a near<br />

doubling!<br />

Education from 6 to 16 has been compulsory for many years <strong>and</strong> <strong>the</strong> level <strong>of</strong><br />

literacy in <strong>the</strong> population is very high. There are strong training institutions to<br />

TABLE 7.2<br />

Population change, rural-urban distribution <strong>and</strong> total (‘000s).<br />

Year 1950 1956 1960 1963 1969 1970 1979 1980 1989 1997 1998<br />

Urban n.a. 183.0 n.a. 408.8 527.4 n.a. 817.0 n.a. 1 161.1 1 226.3 n.a.<br />

Rural n.a. 662.5 n.a. 608.3 670.2 n.a. 778.0 n.a. 877.9 1 127.0 n.a.<br />

Total 772.4 845.5 968.1 1 017.1 1 197.6 1 265.4 1 595.0 1 682.0 2 044.0 2 353.3 2 422.8<br />

Urban % 15.3 40.1 44.0 51.2 57.0 52.1<br />

NOTE: n.a. = information not available.<br />

SOURCE: State Statistics Office.


270<br />

TABLE 7.3<br />

Projected total population to 2020.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

2000 2005 2010 2015 2020<br />

2 781 700 3 195 000 3 612 300 3 945 500 4 284 800<br />

SOURCE: Development scenario for 21st century. UNDP pilot project report. Ulaanbaatar, 1998. MAP-21, MON/95-G81.<br />

Plate 7.3<br />

Migrating flock crossing <strong>the</strong> Ulan Dava pass on <strong>the</strong> way to summer pasture – Uvs.<br />

university level – many post-graduates have trained abroad. There are technical<br />

schools in each aimag (� province). More girls than boys follow secondary <strong>and</strong><br />

university studies – <strong>the</strong>ir families do not require <strong>the</strong>m for herding <strong>and</strong> <strong>the</strong>re are<br />

adequate women to attend to dairy duties.<br />

The herders all practice transhumance ; this means that <strong>the</strong>y must move seasonally<br />

(see Plate 7.3) with <strong>the</strong>ir livestock on <strong>the</strong> pastures. They live in gers (yurt<br />

in Russian ), cylindrical, domed structures (Plate 7.4) with a wooden framework<br />

covered with felt; They are free-st<strong>and</strong>ing, not held in place by guy-ropes like<br />

a tent. While <strong>the</strong> ger is easy to take down <strong>and</strong> erect <strong>and</strong> domestic equipment<br />

is designed for ease <strong>of</strong> transport, <strong>the</strong> moving <strong>of</strong> <strong>the</strong> family’s gers <strong>and</strong> baggage<br />

requires frequent hard work <strong>and</strong> transport. Fuel for cooking <strong>and</strong> heating is generally<br />

dried dung, except in <strong>the</strong> forest zone, where firewood is also used.<br />

Mongolia is rich in wildlife <strong>and</strong> its herds share <strong>the</strong> grazing with antelope,<br />

gazelle , elk <strong>and</strong> deer . Rodents are widespread <strong>and</strong> can cause much local damage<br />

to grassl<strong>and</strong> through feeding <strong>and</strong> burrowing; control was once done through<br />

poisoning but this has now stopped. There are abundant predators , hawks, buzzards,<br />

eagles <strong>and</strong> foxes that feed on <strong>the</strong>m. Wolves prey on sheep flocks <strong>and</strong> in<br />

<strong>the</strong> Gobi Altai <strong>the</strong> protected snow-leopard may cause damage.<br />

J.M. SUTTIE


ALICE CARLONI<br />

Grazing management in Mongolia 271<br />

Plate 7.4<br />

Gers <strong>and</strong> autumn grass .<br />

Crops <strong>and</strong> industry are very minor components in <strong>the</strong> present national<br />

economy; mineral resources have yet to be tapped on any scale, <strong>the</strong> forest area<br />

is relatively small <strong>and</strong> slow-growing. Agro-industrial processing, almost entirely<br />

livestock-based, has contracted since economic liberalization. Traditionally,<br />

herders did not till <strong>the</strong> l<strong>and</strong>; <strong>the</strong>ir economy <strong>and</strong> life-style was entirely pastoral<br />

<strong>and</strong> <strong>the</strong> climate gave little incentive to do so with <strong>the</strong> technology available to<br />

<strong>the</strong>m. A little irrigated cropping, mainly wheat <strong>and</strong> barley, was done in <strong>the</strong><br />

region <strong>of</strong> <strong>the</strong> Great Lakes <strong>and</strong> <strong>the</strong> grain parched <strong>and</strong> ground to a pre-cooked<br />

flour (similar to <strong>the</strong> tsampa <strong>of</strong> Tibet ).<br />

With <strong>the</strong> availability <strong>of</strong> suitable agricultural machinery during <strong>the</strong> second<br />

half <strong>of</strong> <strong>the</strong> twentieth century, however, it became possible to undertake largescale<br />

cereal production (Plate 7.5): in some <strong>of</strong> <strong>the</strong> less unfavourable areas <strong>of</strong><br />

Central Mongolia over one million hectares were cultivated. The l<strong>and</strong> used<br />

was, <strong>of</strong> course, among <strong>the</strong> best pasture . Some fodders (discussed in detail<br />

below) <strong>and</strong> potatoes were also grown, but <strong>the</strong> area was small compared to that<br />

<strong>of</strong> grain. The technology used, based on a rotation <strong>of</strong> alternating strips <strong>of</strong> crop<br />

<strong>and</strong> fallow , was adapted from Canadian practice.<br />

State farms <strong>and</strong> negdel (see Plate 7.6) in suitable sites produced enough grain<br />

to satisfy <strong>the</strong> population’s needs – more cereals were eaten during <strong>the</strong> collective<br />

period than previously or nowadays. FAO (1996) quotes a 40 percent reduction<br />

in <strong>the</strong> consumption <strong>of</strong> flour. In a semi -arid area with a very short <strong>the</strong>rmal<br />

growing season, all agricultural operations must be carried out very rapidly,<br />

especially seed-bed preparation <strong>and</strong> sowing; yield potential is low, so production<br />

methods have, <strong>the</strong>refore, to be extensive . Considerable seasonal risk is


272<br />

Plate 7.5<br />

Wheat was once grown over much larger areas in Mongolia .<br />

Plate 7.6<br />

Mountain <strong>and</strong> steppe with negdel complex in background – Tuv.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

involved <strong>and</strong> harvest can be difficult if a dull summer delays ripening or <strong>the</strong>re is<br />

early frost or snow. Cropping is not attractive to smallholders. Production was<br />

highly mechanized , <strong>and</strong> field sizes large – over a square kilometre. Harvesting<br />

was by combine harvester, <strong>of</strong>ten with assisted drying. Straw was recovered as<br />

feed <strong>and</strong> h<strong>and</strong>led mechanically – some straw was ground up as a component <strong>of</strong><br />

S.G. REYNOLDS<br />

J.M. SUTTIE


Grazing management in Mongolia 273<br />

“concentrate” feed. The fallow strips had to be cultivated in summer to control<br />

weeds <strong>and</strong> prepared for <strong>the</strong> coming year’s crop.<br />

With <strong>the</strong> collapse <strong>of</strong> <strong>the</strong> former producing organizations, <strong>the</strong> crop area is<br />

greatly reduced, although some companies are still active. There are many<br />

financial as well as technical problems, including seed supply <strong>and</strong> competition<br />

from imported flour. The country is now very much dependent on its<br />

neighbours for grain supplies, a problem for national food security. Much <strong>of</strong><br />

<strong>the</strong> former crop l<strong>and</strong> is in tumble-down fallow , <strong>the</strong> area is not known but it is<br />

estimated that 700 000 hectares could be recovered for cropping; this provides<br />

some grazing but would require continual weed-control work were it to be<br />

cropped. Straw is not, <strong>the</strong>refore, an important source <strong>of</strong> fodder.<br />

Changes in administrative systems in <strong>the</strong> twentieth century<br />

The cold , arid climate is well suited to extensive grazing <strong>and</strong> transhumance ,<br />

which makes best use <strong>of</strong> pastures, where forage availability in any one place can<br />

vary greatly from season to season <strong>and</strong> from year to year. The ancient, original<br />

systems were transhumance with a wide range <strong>of</strong> possible travel. According to<br />

Humphrey <strong>and</strong> Sneath (1996a)<br />

“Banners were <strong>the</strong> main administrative units <strong>of</strong> <strong>the</strong> Manchu government in Inner Mongolia <strong>and</strong><br />

Mongolia. They approximated in area to <strong>the</strong> present counties (banners) in Inner Mongolia. In<br />

Mongolia, territories <strong>of</strong> banner size no longer exist; <strong>the</strong>y were amalgamated into aimags , which<br />

are divided into sum (more numerous <strong>and</strong> mostly smaller units than <strong>the</strong> previous banners).<br />

The ‘traditional’ practice in <strong>the</strong> pre-revolutionary period in <strong>the</strong> open steppes <strong>of</strong> Inner Asia was<br />

based on general access to <strong>the</strong> bounded pasture territories coordinated by leaders <strong>and</strong> <strong>of</strong>ficials.<br />

In Mongol inhabited areas, along with small herder groups <strong>of</strong> a few families, <strong>the</strong>re were large<br />

institutions, notably Buddhist monasteries <strong>and</strong> <strong>the</strong> economies <strong>of</strong> banners [administrative units]<br />

managed by <strong>the</strong> ruling princes. These institutions held <strong>the</strong>ir own property or funds (jas) consisting<br />

<strong>of</strong> livestock, l<strong>and</strong> <strong>and</strong> money. In Mongolia <strong>and</strong> Inner Mongolia <strong>the</strong> animals were herded by<br />

monastery serfs (shabinar) or banner princes’ serfs (hamjilaga), while a fur<strong>the</strong>r class <strong>of</strong> State<br />

subjects (albat) paid taxes <strong>and</strong> performed labour services. The large monastic foundations, with<br />

<strong>the</strong>ir own territories <strong>and</strong> people, functioned as districts equivalent to banners, but <strong>the</strong>re were also<br />

numerous smaller monasteries located inside <strong>the</strong> princely banners.”<br />

Feudal l<strong>and</strong> ownership was done away with on <strong>the</strong> founding <strong>of</strong> <strong>the</strong><br />

Mongolian Communist State in 1921; transhumance continued with government,<br />

instead <strong>of</strong> feudal, supervision.<br />

In <strong>the</strong> late thirteenth century, Marco Polo described <strong>the</strong> Mongol transhumance<br />

<strong>and</strong> <strong>the</strong>ir gers (Latham, 1958: 67).<br />

“They spend <strong>the</strong> winter in steppes <strong>and</strong> warm regions where <strong>the</strong>re is good grazing <strong>and</strong> pasturage<br />

for <strong>the</strong>ir beasts. In summer <strong>the</strong>y live in cool regions, among mountains <strong>and</strong> valleys, where<br />

<strong>the</strong>y find water <strong>and</strong> pasturage. A fur<strong>the</strong>r advantage is that in <strong>the</strong> cooler regions <strong>the</strong>re are no<br />

horse flies <strong>and</strong> gad flies or similar pests to annoy <strong>the</strong>m <strong>and</strong> <strong>the</strong>ir beasts. They spend two or three<br />

months climbing steadily <strong>and</strong> grazing as <strong>the</strong>y go, because if <strong>the</strong>y confined <strong>the</strong>ir grazing to one<br />

spot <strong>the</strong>re would not be grass enough for <strong>the</strong> multitude <strong>of</strong> <strong>the</strong>ir flocks. They have circular houses


274<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

made <strong>of</strong> wood that <strong>the</strong>y carry about with <strong>the</strong>m on four-wheeled wagons wherever <strong>the</strong>y go. The<br />

framework <strong>of</strong> rods is so neatly <strong>and</strong> lightly constructed that it is light to carry. And every time<br />

<strong>the</strong>y unfold <strong>the</strong> house <strong>and</strong> set it up <strong>the</strong> door is always facing south. They also have excellent twowheeled<br />

carts – <strong>the</strong>se are drawn by oxen <strong>and</strong> camels . And in <strong>the</strong>se carts <strong>the</strong>y carry <strong>the</strong>ir wives <strong>and</strong><br />

children <strong>and</strong> all <strong>the</strong>y need in <strong>the</strong> way <strong>of</strong> utensils.” Polo continues with more that is still apposite:<br />

“And I assure you that <strong>the</strong> womenfolk buy <strong>and</strong> sell <strong>and</strong> do all that is needful for <strong>the</strong>ir husb<strong>and</strong>s<br />

<strong>and</strong> households. For <strong>the</strong> men do not bo<strong>the</strong>r <strong>the</strong>mselves about anything but hunting <strong>and</strong> warfare<br />

<strong>and</strong> falconry.”<br />

The country’s pastures have probably always been heavily stocked – hard<br />

grazing is a historical phenomenon, not something <strong>of</strong> recent development .<br />

Kharin, Takahashi <strong>and</strong> Harahshesh (1999) quote Przevalsky (1883) who “said<br />

that all suitable agricultural l<strong>and</strong>s were reclaimed <strong>and</strong> all grazing l<strong>and</strong>s were<br />

overloaded by livestock.”<br />

A fundamental change took place in 1950 with <strong>the</strong> collectivization <strong>of</strong> <strong>the</strong><br />

livestock industry; while this facilitated <strong>the</strong> provision <strong>of</strong> government services<br />

<strong>and</strong> marketing (<strong>and</strong> probably control <strong>of</strong> a nomadic population), it decreased<br />

<strong>the</strong> range over which herds could travel <strong>and</strong> thus reduced opportunities for<br />

risk -avoidance in times <strong>of</strong> feed scarcity. The unit <strong>of</strong> management during <strong>the</strong><br />

collective period was <strong>the</strong> negdel covering <strong>the</strong> same area as a single district<br />

(sum ); it was primarily an economic unit responsible for marketing livestock<br />

products, supplying inputs <strong>and</strong> consumer goods as well as fodder <strong>and</strong> transport<br />

services to members; it provided health, education <strong>and</strong> veterinary services.<br />

Although livestock was collectivized, each family was allowed to keep two<br />

livestock units (bod 1 ) per person so about a quarter <strong>of</strong> <strong>the</strong> herd was under<br />

private control. Collectivization , as noted above, led to a very large rise in <strong>the</strong><br />

proportion <strong>of</strong> urban population.<br />

During <strong>the</strong> collective period, <strong>the</strong> government was heavily involved in<br />

livestock production through <strong>the</strong> provision <strong>of</strong> breeding stock, fodder,<br />

marketing, transport <strong>and</strong> services. It was a heavily subsidized production<br />

system that did not allocate resources efficiently. The loss <strong>of</strong> mobility through<br />

collectivization was compensated by <strong>the</strong> production <strong>of</strong> supplementary forage<br />

<strong>and</strong> a State Emergency Fodder Fund was established as a mechanism to provide<br />

feed during wea<strong>the</strong>r conditions that would threaten survival, but, with heavily<br />

subsidized transport <strong>and</strong> undervalued prices, herders soon became dependent<br />

on it as a regular source <strong>of</strong> feed. By 1991, <strong>the</strong> State Emergency Fodder Fund<br />

was h<strong>and</strong>ling 157 600 t/yr <strong>and</strong> had become a major component <strong>of</strong> <strong>the</strong> state<br />

budget. A network <strong>of</strong> stock-routes was maintained that allowed slaughter<br />

stock to be trekked to market, fattening en route. There were marketing <strong>and</strong><br />

primary processing facilities for hides, skins, wool <strong>and</strong> cashmere .<br />

Eighteen aimags were subdivided into 225 districts – sum – that in turn<br />

were divided into brigades . Negdel headquarters had administration, schools<br />

1 A large-animal unit: a camel = 1.5 bod ; cattle <strong>and</strong> horses = 1; 7 sheep or 10 goats = 1 bod.


ALICE CARLONI<br />

ALICE CARLONI<br />

Grazing management in Mongolia 275<br />

Plate 7.7<br />

Hay reserves for feed provision under <strong>the</strong> State Emergency Fodder Fund<br />

Plate 7.8<br />

Trucks distributing winter feed<br />

(boarding), medical facilities, a veterinary unit, communications, recreational<br />

facilities <strong>and</strong> shops. Negdels were set production quotas <strong>and</strong> paid accordingly<br />

with bonuses – <strong>the</strong> system was production driven. A vast number <strong>of</strong> salaried<br />

administrators <strong>and</strong> specialist staff was built up at all levels, especially in <strong>the</strong><br />

capital.<br />

Negdels were divided into production herding brigades or teams, which<br />

were fur<strong>the</strong>r sub-divider into suuri – individual units made up <strong>of</strong> one to


276<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

four households (sur ). There were o<strong>the</strong>r, salaried, brigades for haymaking ,<br />

mechanization, etc. Brigades had production targets for each sur, determining<br />

<strong>the</strong> quantity <strong>of</strong> meat , wool <strong>and</strong> o<strong>the</strong>r products to be delivered according<br />

to <strong>the</strong> annual state procurement order. A sur was generally involved in <strong>the</strong><br />

production <strong>of</strong> single-species herds for which a monthly salary was paid (each<br />

household, however, had some private livestock for subsistence). Pasture<br />

management was organized along rational lines <strong>and</strong> <strong>the</strong> seasonal movement<br />

<strong>of</strong> herds (<strong>and</strong> resting <strong>of</strong> grazing l<strong>and</strong> ) planned <strong>and</strong> <strong>the</strong> plans followed by <strong>the</strong><br />

sur. Emphasis was on animal output ra<strong>the</strong>r than pasture improvement but<br />

<strong>the</strong> system did assure better pasture management than today’s anarchy. Hay<br />

l<strong>and</strong>s were reserved <strong>and</strong> managed separately from grazing.<br />

The negdels were privatized in 1991; this was meant to take place in two<br />

stages. Thirty percent <strong>of</strong> negdels’ assets were distributed between members;<br />

a fur<strong>the</strong>r 10 percent <strong>of</strong> <strong>the</strong> livestock was distributed to sum inhabitants<br />

(administrative <strong>and</strong> health workers, etc.). The remaining 60 percent <strong>of</strong> assets<br />

was formed into a limited liability company; <strong>the</strong>se companies were generally<br />

unsuccessful <strong>and</strong> <strong>the</strong> livestock industry reverted towards its earlier familybased<br />

transhumance . In some cases <strong>the</strong> livestock were distributed without <strong>the</strong><br />

formation <strong>of</strong> a company.<br />

Grazing l<strong>and</strong>s , pasture <strong>and</strong> fodder<br />

The natural grazing has a very short growing season, limited by low<br />

temperatures. Pasture growth begins in mid-May <strong>and</strong> usually ceases after mid-<br />

August because <strong>of</strong> drought . Frosts can occur at <strong>the</strong> end <strong>of</strong> August; <strong>the</strong> <strong>the</strong>rmal<br />

growing season is shorter in <strong>the</strong> mountains <strong>and</strong> longer in <strong>the</strong> Gobi . The grazing<br />

l<strong>and</strong>s were surveyed in detail <strong>and</strong> pasture maps covering <strong>the</strong> country produced<br />

about twenty years ago. Under negdel management , pastures were monitored<br />

<strong>and</strong> seasonal movements <strong>of</strong> livestock respected. The monitoring <strong>of</strong> pasture<br />

condition needs updating so that <strong>the</strong> present situation can be defined <strong>and</strong><br />

policies formulated on a basis <strong>of</strong> fact ra<strong>the</strong>r than opinion. The dichotomy <strong>of</strong><br />

interests between <strong>the</strong> grazers <strong>and</strong> <strong>the</strong> grazed is recognized at government level:<br />

livestock are under <strong>the</strong> Ministry <strong>of</strong> Agriculture <strong>and</strong> Food while <strong>the</strong> grazing l<strong>and</strong>s<br />

<strong>and</strong> <strong>the</strong> monitoring <strong>of</strong> <strong>the</strong>ir vegetation are <strong>the</strong> responsibility <strong>of</strong> <strong>the</strong> Ministry <strong>of</strong><br />

<strong>the</strong> Environment <strong>and</strong> Natural Resources; close inter-ministerial collaboration is<br />

essential in any work on pasture management at national level.<br />

Opinions on <strong>the</strong> present state <strong>of</strong> Mongolia ’s pastures vary widely, especially<br />

those <strong>of</strong> external missions. There is general agreement that overstocking now<br />

occurs close to agglomerations, especially <strong>the</strong> capital <strong>and</strong> along roads. Damage<br />

through r<strong>and</strong>om track-making by vehicles, particularly in valley-bottoms,<br />

is also widespread. Thereafter opinions have varied from declaring that <strong>the</strong><br />

nation’s pastures are seriously degraded, risking an ecological disaster, to <strong>the</strong><br />

view that overstocking is a localized phenomenon <strong>and</strong> labour availability, not<br />

pasture production is <strong>the</strong> main constraint to herding . While stock numbers are


Grazing management in Mongolia 277<br />

at an all-time high since recording began in 1918, <strong>the</strong> 1996 levels are only marginally<br />

higher than those <strong>of</strong> 1950. The consensus is that problems vary from<br />

place to place <strong>and</strong> that outlying (summer <strong>and</strong> autumn ) pastures are underutilized,<br />

while winter -spring pastures are <strong>of</strong>ten being abused. Natural control<br />

<strong>of</strong> stock numbers is <strong>the</strong> traditional way to correct overstocking. Periodic zud<br />

[winter natural disaster – discussed later] or prolonged drought kills large numbers,<br />

<strong>and</strong> puts <strong>the</strong> grazing stock back in equilibrium with <strong>the</strong> forage supply,<br />

but however effective natural disasters are in protecting <strong>the</strong> grazing vegetation ,<br />

<strong>the</strong>y inevitably lead to poverty <strong>and</strong> suffering among <strong>the</strong> herders.<br />

The vast grassl<strong>and</strong>s <strong>of</strong> Mongolia are part <strong>of</strong> <strong>the</strong> steppe, a prominent transition<br />

belt in Inner Asia <strong>and</strong> Central Asia between <strong>the</strong>ir forest <strong>and</strong> desert belts.<br />

Steppe vegetation is characterized by a predominance <strong>of</strong> grasses, especially<br />

species <strong>of</strong> Stipa <strong>and</strong> Festuca . Legumes are scarce; <strong>the</strong> commonest are Medicago<br />

sativa subsp. falcata <strong>and</strong> Astragalus spp. Artemisia frigida is frequent <strong>and</strong> is <strong>the</strong><br />

main steppe-forming plant <strong>of</strong> <strong>the</strong> desert steppe . The montane forest steppe has<br />

Festuca spp. <strong>and</strong> Artemisia spp. as dominants.<br />

There are typical plants associated with <strong>the</strong> main pasture zones . High<br />

mountain pasture is dominated by Kobresia bellardii , Ptilagrostis mongolica ,<br />

Arenaria, Formosa <strong>and</strong> Potentilla nivea ; Forest steppe is dominated by Festuca<br />

lenensis , Carex pediformis , Aster alpinus <strong>and</strong> Androsace villosa ; <strong>the</strong> steppe<br />

zone is dominated by Stipa capillata , Elymus chinensis , Cleistogenes squarrosa<br />

, Koeleria macrantha , Agropyron cristatum , Carex duriuscula , Artemisia<br />

frigida <strong>and</strong> Potentilla acaulis ; <strong>the</strong> desert steppe is dominated by Stipa gobica ,<br />

S. glareosa , Allium polyrhizum , Artemisia xerophytica , A. caespitosa , Anabasis<br />

brevifolia <strong>and</strong> Eurotia ceratoides ; <strong>and</strong> <strong>the</strong> desert zone is dominated by shrubs<br />

<strong>and</strong> semi -shrubs like Anabasis brevifolia, Salsola passerina , Sympegma regeli i<br />

<strong>and</strong> Nanophyton erinaceum .<br />

The steppe has five major zones with different livestock production capacities.<br />

The Khangai-Khosvol region in <strong>the</strong> northwest is mountainous with scattered<br />

larch forest . It includes Arkhangai, Khovsgol <strong>and</strong> part <strong>of</strong> Bulgan <strong>and</strong><br />

Zhagvan aimags ; this is mixed grazing , with yaks replacing cattle at <strong>the</strong> higher<br />

altitudes. Selenge-Onon in <strong>the</strong> north central area (Tuv, Selenge <strong>and</strong> parts <strong>of</strong><br />

Bulgan) is <strong>the</strong> main area <strong>of</strong> agricultural production. These two regions drain<br />

to Lake Baikal. Altai (covering Uvs, Bayangol, Khovd <strong>and</strong> parts <strong>of</strong> Zhavakan<br />

<strong>and</strong> Gobi -Altai aimags ) is a high, mountainous, area with internal drainage<br />

<strong>and</strong> contains large lakes. In <strong>the</strong> nor<strong>the</strong>rn part <strong>of</strong> <strong>the</strong> region this again is grazed<br />

by <strong>the</strong> main types <strong>of</strong> livestock with yaks; <strong>the</strong>re is some localized fodder <strong>and</strong><br />

horticultural production under irrigation in <strong>the</strong> lower parts. The Central <strong>and</strong><br />

Eastern steppes (comprising Dornod, Hentii – see Plate 7.9, Sukhbaatar <strong>and</strong><br />

parts <strong>of</strong> Dorongobi <strong>and</strong> Dungovi) are characterized by broad, treeless plains;<br />

<strong>the</strong> Herlen river traverses part <strong>of</strong> <strong>the</strong> region; <strong>the</strong> primary activity is herding <strong>of</strong><br />

horses, cattle, sheep , goats <strong>and</strong> camels . Gobi (mainly Bayankhongor, Omnogobi,<br />

much <strong>of</strong> Ovorkhangai <strong>and</strong> parts <strong>of</strong> Dungobi <strong>and</strong> Gobi-Altai) is desert steppe


278<br />

Plate 7.9<br />

Saddle horses on hitching line in <strong>the</strong> eastern steppe – Hentii.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>and</strong> desert, used for grazing camels, horses, cattle <strong>and</strong> goats, with very limited<br />

hay harvesting; drainage is internal; oases produce vegetables <strong>and</strong> fruit.<br />

Sown fodder<br />

Some fodder was grown during <strong>the</strong> collective period, for hay , by negdels <strong>and</strong><br />

State Farms in <strong>the</strong> higher rainfall areas. Some silage was made by “mechanized<br />

dairies”. The area dropped dramatically with <strong>the</strong> change <strong>of</strong> system, from<br />

147 000 ha in 1989 (Table 7.4) to 25 000 ha in 1993 <strong>and</strong> is probably much<br />

lower now. Oat (Avena sativa ) was <strong>the</strong> main hay crop; its cultivation suited<br />

<strong>the</strong> wheat-growing equipment already available, a crop could be grown to <strong>the</strong><br />

hay stage in <strong>the</strong> short season available, <strong>and</strong> harvesting <strong>and</strong> curing was easy. All<br />

operations were, <strong>of</strong> course, mechanized. Locally-saved seed was mainly used.<br />

Sunflower (Helianthus annuus) was a common silage crop; in <strong>the</strong> main crop<br />

producing areas it can develop to <strong>the</strong> full heading stage with seed set, suitable<br />

for ensiling, before low temperatures affect growth; it is very drought tolerant.<br />

Sunflower seed cannot, however, be successfully ripened in <strong>the</strong> main silagemaking<br />

zone; some farms arranged for seed production at lower, warmer sites<br />

in Eastern Mongolia , but much <strong>of</strong> <strong>the</strong> seed was imported from Central Asia .<br />

Alfalfa (Medicago spp.) has been cultivated on a small scale, under irrigation,<br />

in <strong>the</strong> area <strong>of</strong> <strong>the</strong> Great Lakes in <strong>the</strong> northwest for a very long time. This was<br />

exp<strong>and</strong>ed greatly during <strong>the</strong> collective period but is now on a lesser scale. Local<br />

l<strong>and</strong>races are grown, probably M. media types , <strong>the</strong>ir seed set <strong>and</strong> production<br />

is good in that area; <strong>the</strong> conditions <strong>of</strong> western Mongolia are excellent for haymaking<br />

. Yellow-flowered alfalfa (M. sativa subsp. falcata ), has been grown<br />

J.M. SUTTIE


Grazing management in Mongolia 279<br />

TABLE 7.4<br />

Fodder <strong>and</strong> straw production 1989-1993.<br />

Fodder type 1989 1990 1991 1992 1993<br />

Area <strong>of</strong> fodder ha 147 700 117 800 79 900 52 900 25 600<br />

Hay harvest tonne 1 166 400 866 400 885 500 668 800 698 400<br />

Straw used tonne 99 500 58 300 54 600 31 900 26 500<br />

SOURCE: State Statistical Office, 1994, quoted by FAO, 1996.<br />

under irrigation on some State Farms, including Khar Horin. It was also grown<br />

on several small irrigated areas in <strong>the</strong> Gobi . Gobi sites have generally been converted<br />

to <strong>the</strong> more popular <strong>and</strong> pr<strong>of</strong>itable melons <strong>and</strong> vegetables.<br />

Sown fodder does not have a high priority under <strong>the</strong> present economic <strong>and</strong><br />

social conditions but could play a role in supplementing low quality winter <strong>and</strong><br />

spring feed in favoured sites. Oat hay could be developed as a cash crop on cereal<br />

farms once <strong>the</strong> crop industry is re-established. Screening <strong>and</strong> selection <strong>of</strong> cultivars<br />

will, however, be necessary, as will development <strong>of</strong> a seed supply chain.<br />

Because <strong>of</strong> <strong>the</strong> 1944 zud <strong>the</strong> government decided to encourage <strong>the</strong> creation<br />

<strong>of</strong> reserves <strong>of</strong> fodder by private herders, but this really developed during <strong>the</strong><br />

collective period. The State Emergency Fodder Fund was set up in 1971, operating<br />

twelve centres <strong>and</strong> forty-one distribution points , but its origins date from<br />

<strong>the</strong> 1930s, when haymaking stations were started with horse-drawn technology<br />

brought in from Russia . By 1991, <strong>the</strong> State Emergency Fodder Fund operated<br />

22 centres; because <strong>of</strong> financial problems, most were transferred to aimag<br />

administrations. The State Emergency Fodder Fund played an important part<br />

in reducing <strong>the</strong> impact <strong>of</strong> wea<strong>the</strong>r emergencies but, as economic liberalization<br />

progressed, its ability to continue its role became doubtful since central government<br />

could not provide <strong>the</strong> previous level <strong>of</strong> subsidy.<br />

In 1997 total fodder production was estimated at 340 000 fodder units; <strong>the</strong><br />

national average was 4.9 forage units per sheep , less than a tenth <strong>of</strong> <strong>the</strong> average<br />

<strong>of</strong> 1980. Hay production data for <strong>the</strong> 1960–1985 period are shown in Table 7.5.<br />

In 2000, hay production was estimated at 689 000 tonne. Problems <strong>of</strong> l<strong>and</strong> use<br />

rights are a serious hindrance to herder haymaking ; a fur<strong>the</strong>r problem in some<br />

systems is <strong>the</strong> location <strong>of</strong> <strong>the</strong> hay l<strong>and</strong>s: sometimes <strong>the</strong>y are far from <strong>the</strong> summer<br />

pastures (Plate 7.10) <strong>and</strong> <strong>the</strong> herders are absent at <strong>the</strong> haymaking season; sometimes<br />

<strong>the</strong>y are far from <strong>the</strong> spring <strong>and</strong> winter pastures where <strong>the</strong> hay is needed.<br />

The biggest bottleneck in haymaking by herders is <strong>the</strong> amount <strong>of</strong> labour<br />

involved <strong>and</strong> <strong>the</strong> lack <strong>of</strong> machinery. Herbage reaches its maximum yield <strong>and</strong><br />

feeding quality in <strong>the</strong> second half <strong>of</strong> August in most ecological zones ; this is<br />

a season <strong>of</strong> relatively heavy rainfall <strong>and</strong> it is laborious to mow <strong>and</strong> turn lowyielding<br />

crops <strong>of</strong> hay to give a quality product.<br />

HAY FROM NATURAL PASTURE IN ARKHANGAI<br />

FAO has provided some support for work on haymaking in Arkhangai by <strong>the</strong><br />

High Mountain Research Station, based in Ihk Tamir sum , which concentrates


280<br />

TABLE 7.5<br />

Haymaking by producer <strong>and</strong> year (‘000 tonne).<br />

Plate 7.10<br />

Hayl<strong>and</strong>s – Arkhangai.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Year State farms Cooperatives O<strong>the</strong>r statal Private<br />

1960 49.8 728.8 12.5 –<br />

1970 116.2 328.9 34.4 42.7<br />

1980 246.6 563.2 161.8 98.6<br />

1985 323.8 615.3 228.3 108.2<br />

SOURCE: Ministry <strong>of</strong> Agriculture <strong>and</strong> Food.<br />

on montane pasture <strong>and</strong> livestock management questions, especially yaks .<br />

Arkhangai aimag is in <strong>the</strong> central area <strong>of</strong> <strong>the</strong> Khangai mountains, its headquarters,<br />

Tsetserleg, is about 500 km west <strong>of</strong> Ulan Bator; its latitude is roughly<br />

47° 30� N at 103° 15� E. It covers a range <strong>of</strong> ecological zones , including high<br />

mountain , mountain steppe <strong>and</strong> steppe zones.<br />

The average elevation is 1 700–1 850 m; mean annual precipitation 363 mm,<br />

<strong>of</strong> which 80 percent falls in <strong>the</strong> period May to August; mean maximum temperature<br />

in August is around 16.0°C, falling to -16.0°C in <strong>the</strong> December to<br />

February period, with absolute maximum <strong>and</strong> minimum temperatures <strong>of</strong> 34.5<br />

<strong>and</strong> -36.5°C. The aimag covers 55 300 km 2 , <strong>of</strong> which 41 000 km 2 is pasture ,<br />

540 km 2 hay <strong>and</strong> 8 645 km 2 forest . The steppe zone, in <strong>the</strong> east <strong>of</strong> <strong>the</strong> province,<br />

has <strong>the</strong> mildest climate: mean January temperature is -16°C (absolute minimum<br />

-38°C) <strong>and</strong> July mean is 17.5°C (absolute maximum 35°C), with 98 to 125 frostfree<br />

days. The main ecological zones in Arkhangai are shown in Table 7.6.<br />

The high mountains are summer yak pasture that is not really accessible<br />

to o<strong>the</strong>r species, although it can be used for horses. Because <strong>of</strong> <strong>the</strong> higher<br />

humidity in <strong>the</strong> high zone, small ruminants suffer <strong>the</strong>re from foot-rot. The<br />

S.G. REYNOLDS


Grazing management in Mongolia 281<br />

TABLE 7.6<br />

Ecological zones in Arkhangai.<br />

Ecological zone Altitude range (masl) Rainfall (mm) Frost-free days<br />

Steppe & Mountain steppe 1 300 – 1 700 315 – 360 130 – 165<br />

Mountain steppe 1 700 – 1 900 370 – 480 90 – 150<br />

Mid-mountain 1 900 – 2 350 440 – 470 70 – 140<br />

High mountain 2 350 – 2 500 450 – 550 50 – 120<br />

area is well -watered by mountain streams <strong>and</strong> rivers; water for livestock is<br />

not generally a problem in <strong>the</strong> warmer months, although it may be locally. In<br />

winter , stock must be watered by cutting through ice to water, or by eating<br />

snow, with a consequent extra energy requirement. Forests are common in<br />

<strong>the</strong> mountain <strong>and</strong> mountain-<strong>and</strong>-steppe zones : Larix , Betula <strong>and</strong> aspen in<br />

mountain forests; poplar (Populus) <strong>and</strong> willow (Salix) in riparian forests.<br />

Timber <strong>and</strong> firewood are readily available in much <strong>of</strong> <strong>the</strong> aimag . Generally <strong>the</strong><br />

sward is dominated by grasses, but broad-leaved species, including legumes,<br />

are common in areas <strong>of</strong> favoured moisture status. In <strong>the</strong> higher grazing areas,<br />

Cyperaceae are frequent – <strong>the</strong> dominant pasture in <strong>the</strong> high mountains is a<br />

Carex -Kobresia community.<br />

At present, hay l<strong>and</strong>s are not allocated to herders, so cutting is unregulated<br />

<strong>and</strong> competitive; maintenance or improvement <strong>of</strong> hay l<strong>and</strong> is <strong>the</strong>refore impossible.<br />

The area <strong>of</strong> hay l<strong>and</strong> is inadequate for <strong>the</strong> aimag ’s needs <strong>and</strong> yields are<br />

very low. The growing season is short throughout <strong>the</strong> project area <strong>and</strong> scarcity<br />

<strong>of</strong> winter <strong>and</strong> spring feed is a major constraint to intensification <strong>of</strong> livestock<br />

rearing. Herders are loath to give supplementary feed, except to special classes<br />

<strong>of</strong> stock (milking <strong>and</strong> pregnant animals; riding horses), because fed animals<br />

tend to graze less <strong>and</strong> come home early to wait for feed.<br />

Now almost all hay is h<strong>and</strong>-mown from natural st<strong>and</strong>s. Yields are very low,<br />

600–700 kg/ha at 18 percent moisture, <strong>and</strong> haymaking is slow <strong>and</strong> laborious,<br />

<strong>and</strong> although yields are very strongly affected by rainfall it is likely that most<br />

hay fields are declining in yield <strong>and</strong> quality since <strong>the</strong>y have been mown yearly<br />

over a long period without rest, manure or o<strong>the</strong>r fertilizer . The High Mountain<br />

Research Station has been working on improvement <strong>of</strong> hay yields from natural<br />

st<strong>and</strong>s for some time (variation in cutting dates, dung <strong>and</strong> fertilizer application,<br />

irrigation, etc.). Traditional water-spreading methods practised in <strong>the</strong> mountain<br />

-<strong>and</strong>-steppe involve sporadic diversion <strong>of</strong> spring water in winter to develop<br />

ice-sheets over hay l<strong>and</strong>, ice which will subsequently melt at <strong>the</strong> onset <strong>of</strong> <strong>the</strong><br />

growing season.<br />

Grazing on exposed <strong>and</strong> sheltered hills is reserved for <strong>the</strong> winter ; autumn<br />

<strong>and</strong> spring grazing takes place on <strong>the</strong> slopes leading to <strong>the</strong> higher areas <strong>and</strong><br />

tree covered areas that will be inaccessible in winter because <strong>of</strong> deeper snow.<br />

Haymaking “fields ” (<strong>and</strong> potential sites), <strong>of</strong>ten meadows, lie in <strong>the</strong>se areas in<br />

sheltered spots along streams <strong>and</strong> where natural drainage lines favour a concentration<br />

<strong>of</strong> moisture, one <strong>of</strong> <strong>the</strong> keys to good grass growth. These areas would


282<br />

Plate 7.11<br />

Meadow grazing – Arkhangai.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

be grazed early in spring (Plate 7.11) <strong>and</strong> <strong>the</strong>n left for haymaking (<strong>and</strong> later<br />

autumn <strong>and</strong> winter feed), as <strong>the</strong> livestock (horses, goats , sheep , cattle <strong>and</strong> yak<br />

are moved down to lower elevations.<br />

Haymaking has been carried out for a very long time. Historically, each<br />

herder is entitled to use certain l<strong>and</strong> where hay has been cut for many years.<br />

After privatization, however, every hayfield has become a focus <strong>of</strong> disputes<br />

between individual herders <strong>and</strong> members within social groups, as well as with<br />

people from neighbouring communities . Also, <strong>the</strong> repeated cutting <strong>of</strong> <strong>the</strong> past<br />

few decades has led to a serious decline in <strong>the</strong> natural productivity <strong>of</strong> hay fields<br />

<strong>and</strong> <strong>the</strong>re is no sign, at present, that herders will invest in <strong>the</strong>ir improvement .<br />

Natural hay fields have usually been mown for a long time, so stones <strong>and</strong><br />

obstructions have largely been eliminated. Fur<strong>the</strong>r study is required on sources<br />

<strong>of</strong> animal-drawn equipment such as mowers <strong>and</strong> trip-rakes (carts are available),<br />

as well as on how to finance <strong>the</strong>ir acquisition <strong>and</strong> organize <strong>the</strong>ir management .<br />

Ways <strong>of</strong> raising yields will also have to be investigated if haymaking is to be<br />

improved – haymaking costs, o<strong>the</strong>r than cartage <strong>and</strong> stacking, are proportional<br />

to <strong>the</strong> area dealt with ra<strong>the</strong>r than <strong>the</strong> quantity <strong>of</strong> hay made.<br />

The botanical composition <strong>of</strong> <strong>the</strong> hayfields varies, <strong>of</strong> course, according to<br />

site. In <strong>the</strong> mountain steppe, <strong>the</strong> main grasses would be Leymus chinensis , Stipa<br />

krylovi , Festuca lenensis <strong>and</strong> Koeleria cristata , with Carex duriscula , Artemisia<br />

lacenata , A. glauca , A. commutata <strong>and</strong> Plantago adpressi as <strong>the</strong> main herbs. In<br />

a riparian meadow , <strong>the</strong> grasses would be Leymus chinensis, Koeleria cristata<br />

<strong>and</strong> Agropyron cristatum , with Carex pediformis , Artemisia lacenata, Potentilla<br />

tanacetifolium , P. anserina , Galium verum <strong>and</strong> Plantago adpressa . In a rainfed<br />

J.M. SUTTIE


Grazing management in Mongolia 283<br />

mountain meadow, <strong>the</strong> grasses <strong>and</strong> grass -like species would be Agropyron<br />

cristatum, Poa subfastigata , Festuca spp. <strong>and</strong> Carex pediformis, <strong>and</strong> <strong>the</strong> herbs<br />

would be typically Artemisia lacenata, A. dracunculus , A. glauca, Thalictrum<br />

simplex <strong>and</strong> Galium verum. A mountain meadow on a north-facing slope<br />

would have Bromus inermis , Calamagrostis epidois , Elymus turczanovii , Stipa<br />

baicalensis <strong>and</strong> Carex pediformis as <strong>the</strong> grasses <strong>and</strong> grass-like species, with<br />

Artemisia lacenata, Geranium pratensis <strong>and</strong> Galium boreale as <strong>the</strong> main herbs.<br />

The overall proportion <strong>of</strong> plant types in hay is Carex 11–22 percent; grasses<br />

20–37 percent; legumes 6–18 percent; <strong>and</strong> o<strong>the</strong>r herbs (considered to be <strong>of</strong><br />

poor feeding value) 39–58 percent.<br />

Haymaking trials <strong>and</strong> demonstrations were established in Ikh Tamir district<br />

in 1996. Initial trials focused on different rates <strong>of</strong> dung <strong>and</strong> <strong>the</strong>ir effects, with<br />

50 t/ha being selected as <strong>the</strong> rate to be used in trials with ice irrigation <strong>and</strong> mineral<br />

fertilizer . Ice irrigation, dung <strong>and</strong> mineral fertilizer all increased <strong>the</strong> number<br />

<strong>of</strong> plants per square metre, <strong>the</strong> length <strong>of</strong> vegetative shoots <strong>and</strong> dry matter yield,<br />

but it is unlikely that mineral fertilizer will be an economic proposition under<br />

present conditions. Differences were particularly significant in 1996, but less<br />

so in <strong>the</strong> dry year 1997. In 1997, increases ranged from 253 percent with ice<br />

irrigation to 407 percent with ice irrigation plus dung, <strong>and</strong> 707 percent with<br />

ice irrigation <strong>and</strong> fertilizer. The percentage <strong>of</strong> grass on <strong>the</strong> treated plots rose<br />

while that <strong>of</strong> sedges fell. L<strong>and</strong> ownership (all l<strong>and</strong> is currently state owned) <strong>and</strong><br />

continued access to l<strong>and</strong> are key questions. Although families have traditional<br />

grazing rights (but not ownership), any move to invest time <strong>and</strong> resources to<br />

increase soil fertility <strong>and</strong> haymaking brings with it <strong>the</strong> need for some security<br />

<strong>of</strong> access to an area <strong>of</strong> l<strong>and</strong> for a reasonable period <strong>of</strong> time.<br />

Herders in Arkhangai made 1 340 kg <strong>of</strong> hay per 100 head in 1995, less than<br />

a twelfth <strong>of</strong> <strong>the</strong> <strong>of</strong>ficial norm. Part <strong>of</strong> this may be due to herders overestimating<br />

<strong>the</strong> weight <strong>of</strong> <strong>the</strong>ir harvest by a factor <strong>of</strong> three or four. Two families have<br />

recently taken up contract haymaking , with animal-drawn equipment, accepting<br />

payment in kind or a share <strong>of</strong> <strong>the</strong> crop.<br />

Grazing livestock production<br />

Mongolia ’s livestock are raised at pasture in traditional, extensive grazing ; this is<br />

<strong>the</strong> best – <strong>and</strong> in most cases <strong>the</strong> only – type <strong>of</strong> exploitation suited to <strong>the</strong> grazing<br />

l<strong>and</strong>s . Livestock are herded on <strong>the</strong> open pasture, by mounted stockmen, <strong>and</strong><br />

return to <strong>the</strong> camp each night, to be penned or te<strong>the</strong>red, although camels may<br />

be left at pasture. The intensive sector, which was government-run on state<br />

farms , has largely broken down since it could not be based on natural pasture<br />

<strong>and</strong> depended on large external inputs <strong>of</strong> feed. Local cattle are poor milkers<br />

<strong>and</strong> exotic dairy cattle require good, warm housing to survive <strong>the</strong> long winter ;<br />

provision <strong>of</strong> feed for housed dairy stock is expensive <strong>and</strong> forage for <strong>the</strong> eightmonth<br />

winter has to be saved during a three-month growing season. Some<br />

small semi -intensive dairying is developing in peri-urban areas <strong>and</strong> where


284<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

cropping <strong>and</strong> grazing l<strong>and</strong> intermingle. Swine <strong>and</strong> poultry numbers have<br />

fallen drastically since decollectivization. Dogs were, previously, licensed but<br />

are now breeding rapidly <strong>and</strong> <strong>the</strong>ir numbers are uncontrolled . Gid, “circling<br />

disease” as translated locally, <strong>of</strong> sheep is common, according to herders<br />

interviewed in all areas, <strong>and</strong> is related to <strong>the</strong> dogs that are intermediate hosts<br />

<strong>of</strong> a tapeworm, probably Taenia multiceps, <strong>the</strong> intermediate stage <strong>of</strong> which is<br />

known as Coenurus cerebralis.<br />

The major infectious diseases have been under control for many years<br />

through regular vaccination. Recently, veterinary services in <strong>the</strong> field have been<br />

privatized; <strong>the</strong> state still supplies vaccines, free <strong>of</strong> cost, for <strong>the</strong> major diseases,<br />

but herders now have to pay <strong>the</strong>ir veterinarian to deliver <strong>and</strong> carrying out <strong>the</strong><br />

vaccination.<br />

Nowadays livestock are privately owned: over 95 percent were in private<br />

h<strong>and</strong>s in December 1998; <strong>the</strong>re were 83 600 herding households with 409 600<br />

herders. The average household herd was 170 head; 71 percent <strong>of</strong> <strong>the</strong> total herding<br />

families had herds between 51 <strong>and</strong> 500 head.<br />

Livestock in herding systems<br />

Six species are commonly raised – camels (Bactrian), horses, cattle , yaks , sheep<br />

<strong>and</strong> goats – with <strong>the</strong>ir distribution <strong>and</strong> frequency depending on ecological<br />

conditions <strong>and</strong> pasture type . Although small ruminants are by far <strong>the</strong> most<br />

numerous (Plate 7.12), large stock predominate in terms <strong>of</strong> livestock units –<br />

camels, horses <strong>and</strong> cattle account for about 69 percent <strong>of</strong> <strong>the</strong> total. Some data<br />

on liveweight are given in Table 7.9. Currently, <strong>the</strong> overall livestock population<br />

is estimated at over 31 million head; nation-wide statistics from 1918 to 1996 are<br />

given in Table 7.10 (yak are not differentiated from cattle <strong>and</strong> <strong>the</strong>ir hybrids , but<br />

see Table 7.7). In general, <strong>the</strong>re has been a steady increase in numbers, except<br />

for camels, which have declined from a peak <strong>of</strong> 859 000 in 1960 to 358 000 in<br />

1995. The drop in camel numbers coincided with collectivization, when motor<br />

transport became available for moving camp (<strong>and</strong> probably mechanization<br />

<strong>of</strong> <strong>the</strong> military) – <strong>the</strong>ir lack may be felt by <strong>the</strong>, now unmotorized, private<br />

herders.<br />

The traditional livestock are all, <strong>of</strong> necessity, well adapted to <strong>the</strong> harsh<br />

climate; <strong>the</strong>y can regain condition <strong>and</strong> build up fat reserves rapidly during<br />

<strong>the</strong> short growing season. The hump <strong>of</strong> <strong>the</strong> camel <strong>and</strong> <strong>the</strong> fat rump <strong>of</strong> <strong>the</strong><br />

local sheep breeds provide energy reserves to help tide <strong>the</strong>m over winter <strong>and</strong><br />

spring . Yaks, camels <strong>and</strong> cashmere goats develop winter down among <strong>the</strong>ir<br />

coats, which helps reduce heat loss. All can survive outdoors throughout<br />

<strong>the</strong> long, cold winter with little or no shelter nor supplementary feed. The<br />

young are generally born in spring <strong>and</strong> <strong>the</strong>ir dams benefit from <strong>the</strong> fresh grass ;<br />

generalized breeding seasons are given in Table 7.8. The livestock are generally<br />

small. Table 7.9 gives <strong>the</strong> average liveweight <strong>of</strong> animals sold to <strong>the</strong> national<br />

abattoir, which is probably a fair indication <strong>of</strong> <strong>the</strong> general run <strong>of</strong> stock; some


ALICE CARLONI<br />

Grazing management in Mongolia 285<br />

Plate 7.12<br />

Sheep <strong>and</strong> goats being rounded up for milking .<br />

TABLE 7.7<br />

Cattle , yaks <strong>and</strong> <strong>the</strong>ir hybrids (‘000s).<br />

1940 1950 1960 1970 1980 1990 1994<br />

Total cattle <strong>and</strong> yak 2 634.9 1 950.3 1 905.5 2 107.8 2 397.1 2 848.7 3 005.2<br />

Yak 725.8 561.0 495.6 452.2 554.5 566.9 570.8<br />

Khainag (F1) 73.6 52.4 69.2 69.1 50.7 70.0 56.3<br />

Yak <strong>and</strong> khainag as % <strong>of</strong> total 30.3 31.5 29.7 24.7 25.2 22.4 20.9<br />

NOTE: khainag are yak ×cattle crosses.<br />

SOURCE: after Cai Li <strong>and</strong> Weiner, 1995.<br />

TABLE 7.8<br />

Livestock husb<strong>and</strong>ry patterns.<br />

Species Mating Birth Slaughter<br />

Camels early Dec. – late Feb. late Feb. – mid-May December<br />

Mares mid-May – late Aug. mid-Apr. – late July December<br />

Cows mid-May – late Sep. mid-Mar. – late July December<br />

Yaks early June – late Sep. early Apr. – late May December<br />

Ewes late Sep. – late Dec. late Feb. – mid-May Nov. – Dec.<br />

Does<br />

SOURCE: Telenged, 1996.<br />

mid-Sep. – mid-Nov. mid-Feb. – mid-Mar. Nov. – Dec.<br />

TABLE 7.9<br />

Average liveweight (kg) <strong>of</strong> livestock sold to State Abattoirs.<br />

Species 1950 1960 1970 1980 1985<br />

Cattle 242 248 243 217 259<br />

Sheep 37 36 36 33 41<br />

Goats 28 28 28 26 32


286<br />

TABLE 7.10<br />

Evolution <strong>of</strong> stock numbers, 1918–2003 (‘000 head).<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Year Camels Horses Cattle ( 1 ) Sheep Goats<br />

1918 228.7 1 150.5 1 078.7 5 700.0 1 487.9<br />

1924 275.0 1 389.8 1 512.1 8 444.8 2 204.4<br />

1930 480.9 1 566.9 1 887.3 15 660.3 4 080.8<br />

1940 643.4 2 538.1 2 722.8 15 384.2 5 096.3<br />

1950 844.2 2 317.0 1 987.8 12 574.6 4 978.6<br />

1961 751.7 2 289.3 1 637.4 10 981.9 4 732.6<br />

1970 633.5 2 317.9 2 107.8 13 311.7 4 204.0<br />

1980 591.5 1 985.4 2 397.1 14 230.7 4 566.7<br />

1985 559.0 1 971.0 2 408.1 13 248.8 4 298.6<br />

1992 415.2 2 200.2 2 840.0 14 657.0 5 602.5<br />

1996 357.9 2 270.5 3 476.3 13 560.6 9 134.8<br />

2000 322.9 2 660.7 3 976.0 13 876.4 10 269.8<br />

2003 275.0 2 200.0 2 053.7 11 797.0 8 858.0<br />

NOTE: (1) cattle includes yaks <strong>and</strong> <strong>the</strong>ir hybrids .<br />

SOURCE: Ministry <strong>of</strong> Agriculture <strong>and</strong> Food; Data for 2003 from FAOSTAT.<br />

Plate 7.13<br />

Camels being watered in <strong>the</strong> Gobi.<br />

authors claim heavier weights, which are, no doubt, possible with selected or<br />

better managed flocks.<br />

Bactrian camels are important in <strong>the</strong> Gobi <strong>and</strong> o<strong>the</strong>r dry regions <strong>and</strong> are<br />

used in many o<strong>the</strong>r areas to pull carts or carry baggage; <strong>the</strong>y are <strong>the</strong> only class<br />

<strong>of</strong> pastoral livestock whose numbers are falling – <strong>the</strong> decline has been steady<br />

from 860 000 at collectivization in 1960 (when motor transport for camp moves<br />

became available) to 360 000 today; <strong>the</strong>re is anecdotal evidence to suggest that<br />

<strong>the</strong> fall has ceased <strong>and</strong> numbers may be beginning to rise. Camels are used<br />

for milk <strong>and</strong> meat as well as transport; camel -hair is a minor but high-priced<br />

ALICE CARLONI


Grazing management in Mongolia 287<br />

product. Three breeds are recognized, all from <strong>the</strong> Gobi, but for moving herders’<br />

camps, camels are important in most <strong>of</strong> <strong>the</strong> country. Camel as subsistence<br />

herds <strong>and</strong> camel breeding is mainly found in <strong>the</strong> desert <strong>and</strong> semi -desert zones .<br />

(Plate 7.13).<br />

Horses <strong>of</strong> <strong>the</strong> local breed are small but hardy; <strong>the</strong>y are extremely important<br />

as part <strong>of</strong> <strong>the</strong> herders’ essential equipment, as well as for sport, meat <strong>and</strong><br />

milk – fermented mares ’ milk (airag ) is a favourite, <strong>and</strong> highly saleable, beverage,<br />

although not all areas milk mares – in parts <strong>of</strong> Western Mongolia , such as<br />

Uvs, <strong>the</strong>y are not milked. Only rough estimates <strong>of</strong> milk yields are available but<br />

it is an important revenue source in steppe <strong>and</strong> mountain steppe zones in places<br />

where <strong>the</strong>re are market opportunities; herds <strong>of</strong> dairy mares are <strong>of</strong>ten brought<br />

to roadsides in <strong>the</strong> season. Mares are milked from mid-July through September,<br />

sometimes into October, every two to two-<strong>and</strong>-a-half hours during daylight<br />

– about six times daily. Yields are two to two-<strong>and</strong>-a-half litres – about 150 litres<br />

per lactation. In 2001, fermented mares’ milk was selling at 400 tugriks 2 per<br />

litre at <strong>the</strong> roadside, about 40 US cents. Horse -racing is popular <strong>and</strong> herders’<br />

selection is for speed.<br />

The small local breed <strong>of</strong> cattle is <strong>the</strong> basis <strong>of</strong> <strong>the</strong> pastoral beef industry; in<br />

many areas signs <strong>of</strong> admixture with exotic blood (Alatau, Simmental <strong>and</strong>, most<br />

obviously, White-faced Kazakh) are obvious, but pure Mongolian prevails in<br />

harder areas. They are very hardy, but poor milkers, <strong>and</strong> most dairy products<br />

are reserved for home consumption. Cows are dried <strong>of</strong>f as <strong>the</strong> feed supply<br />

diminishes in late autumn <strong>and</strong> those that do not get in calf may be disposed <strong>of</strong>.<br />

At <strong>the</strong> colder limit <strong>of</strong> <strong>the</strong> range, cattle×yak hybrids (khainag ) are also used.<br />

Yaks <strong>and</strong> <strong>the</strong>ir hybrid with cattle , <strong>the</strong> khainag , are kept in <strong>the</strong> higher areas<br />

(Plate 7.14). There are no named breeds, <strong>and</strong> polled animals are common <strong>and</strong><br />

are preferred by herdsmen. The proportion <strong>of</strong> yak <strong>and</strong> khainag in <strong>the</strong> national<br />

cattle herd fell (see Table 7.7) from one-third to one-fifth between 1950 <strong>and</strong><br />

1994. There is some anecdotal evidence that <strong>the</strong> proportion <strong>of</strong> yak is increasing<br />

again in <strong>the</strong>ir main areas.<br />

Sheep unlike <strong>the</strong> o<strong>the</strong>r species, have several local breeds, adapted to different<br />

ecological zones . These have been described in detail in an article in <strong>World</strong><br />

Animal Review (Batsukh <strong>and</strong> Zagdsuren, 1990). Sheep numbers have been<br />

declining slowly since 1990. In 1996 <strong>the</strong>re were reportedly 13 560 600 sheep ,<br />

which was 90 percent <strong>of</strong> <strong>the</strong> 1990 figure. Mongolian sheep produce mainly<br />

carpet wool <strong>and</strong> average annual production from adult sheep is 2.0 to 2.4 kg<br />

<strong>of</strong> greasy wool .<br />

Mongolian goats are renowned for <strong>the</strong> quality <strong>of</strong> <strong>the</strong>ir cashmere ; <strong>the</strong>ir<br />

number has increased rapidly in recent years, more than doubling since 1988.<br />

This is partly due to <strong>the</strong> ease <strong>of</strong> commercialization <strong>of</strong> a product with a high<br />

price-to-weight ratio since <strong>the</strong> old meat marketing organization broke down;<br />

traders now purchase cashmere direct from herders. Goats were traditionally<br />

kept in drier areas with plentiful browse – now <strong>the</strong>y are increasing in many


288<br />

Plate 7.14<br />

Polled yak in autumn – Arkhangai.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

areas where previously <strong>the</strong>y were a minor herd component. Production <strong>of</strong> raw<br />

combed product varies from 250 g (female) to 340 g (male castrates) per head.<br />

Twinning is commoner in goats than in local sheep , <strong>and</strong> weaning rates <strong>of</strong> 100<br />

percent or more are claimed.<br />

Most <strong>of</strong> <strong>the</strong> dairy products <strong>of</strong> <strong>the</strong> herding sector are consumed at home.<br />

Cows <strong>and</strong> mares are <strong>the</strong> main milk sources, but ewes are milked for a few<br />

weeks after weaning in some areas. Lactations are short <strong>and</strong> all cattle are usually<br />

dried <strong>of</strong>f by December, when feed has become scarce, to avoid strain on <strong>the</strong><br />

developing calf. Much <strong>of</strong> <strong>the</strong> milk in <strong>the</strong> short season is processed domestically<br />

to conserve it for later use. A wide range <strong>of</strong> traditional dairy products are made,<br />

but clotted cream <strong>and</strong> dried curd are <strong>the</strong> main ones. Fermented mares’ milk,<br />

airag , is a favourite <strong>and</strong> saleable beverage; it is also distilled to produce an alcoholic<br />

drink, rakhi , <strong>and</strong> <strong>the</strong> residues <strong>of</strong> <strong>the</strong> distillation may be added to curd.<br />

Evolution <strong>of</strong> stock numbers<br />

The numbers <strong>of</strong> <strong>the</strong> five species between 1918 <strong>and</strong> 1996 were shown in<br />

Table 7.10. Since grazing pressure depends on species as well as overall<br />

numbers, <strong>the</strong>se figures have been transformed into stock unit s (on <strong>the</strong> basis <strong>of</strong><br />

<strong>the</strong> traditional bod ) in Plate 7.3. The transformation is crude <strong>and</strong> does not take<br />

account <strong>of</strong> <strong>the</strong> different stages <strong>of</strong> maturity <strong>of</strong> animals within <strong>the</strong> herd, but serves<br />

for rough comparisons. Present stock numbers are high, but those <strong>of</strong> 1996, in<br />

terms <strong>of</strong> livestock units, are little higher, by about 6 percent, than those <strong>of</strong> 1950<br />

immediately prior to <strong>the</strong> development <strong>of</strong> collective management . Historically,<br />

<strong>the</strong>re was a very rapid rise between 1918, a time <strong>of</strong> troubles, <strong>and</strong> 1930, when <strong>the</strong><br />

national herd reached levels approaching those <strong>of</strong> modern times.<br />

J.M. SUTTIE


Grazing management in Mongolia 289<br />

TABLE 7.11<br />

Evolution <strong>of</strong> <strong>the</strong> national herd in terms <strong>of</strong> composition by species <strong>and</strong> overall size in terms <strong>of</strong><br />

stock unit s (‘000s).<br />

Year Camels % Horses % Cattle % Sheep % Goats % Total SU (1)<br />

1918 9.7 32.5 30.5 23.0 4.2 3 535.3<br />

1924 8.7 29.3 31.9 25.5 4.7 4 741.2<br />

1930 10.6 23.0 27.7 32.8 6.0 6 820.8<br />

1940 9.6 25.3 27.2 30.7 7.2 10 029.0<br />

1950 10.8 28.4 30.5 24.6 5.7 8 933.4<br />

1961 16.1 29.5 25.3 22.8 6.3 7 865.3<br />

1970 15.9 32.2 23.1 22.1 6.7 7 096.4<br />

1980 12.3 30.1 27.4 24.7 5.5 7 698.0<br />

1985 11.1 26.1 31.9 25.1 5.7 7 540.2<br />

1992 7.5 26.5 34.1 25.2 6.7 8 317.1<br />

1996 5.9 24.9 38.6 21.2 10.0 9 134.4<br />

2000 4.8 26.3 39.2 19.6 10.1 10 130.3<br />

2003 5.7 30.4 28.4 23.3 12.2 7 372.7<br />

NOTE: (1) Stock units converted as “bod ” values, derived from Table 7.10.<br />

From 1961 until <strong>the</strong> early 1990s, <strong>the</strong> overall number <strong>of</strong> livestock units<br />

remained relatively stable, reflecting <strong>the</strong> organized management <strong>and</strong> marketing<br />

arrangements <strong>of</strong> <strong>the</strong> period. Since economic liberalization <strong>the</strong>re has been<br />

increase in both stock numbers <strong>and</strong> livestock units, although numbers are<br />

rising most rapidly because <strong>of</strong> <strong>the</strong> great increase in <strong>the</strong> goat flock. The greatest<br />

increase is in cattle , by about a million, or 12 percent <strong>of</strong> all livestock units.<br />

Small ruminants account for about 30 percent <strong>of</strong> <strong>the</strong> total. Between 1950 <strong>and</strong><br />

1996, in terms <strong>of</strong> livestock units, <strong>the</strong> sheep <strong>and</strong> goat population was in a very<br />

narrow range <strong>of</strong> between 28.8 <strong>and</strong> 31.9 million head; large ruminants <strong>and</strong><br />

horses, <strong>the</strong>refore, account for by far <strong>the</strong> greater part <strong>of</strong> <strong>the</strong> grazing pressure .<br />

Mongolia ’s pastures have, <strong>the</strong>refore, already carried livestock populations<br />

equivalent to modern ones (Table 7.11); how <strong>the</strong>y were distributed in space<br />

in <strong>the</strong> early years is not known. The number <strong>of</strong> livestock per head <strong>of</strong> population,<br />

however, has been declining steadily since records began, from 34 head<br />

(11.6 units) in 1950 to 23.6 (8.1) in 1961, to 16.1 (5.6) in 1970, to 13.4 (4.5)<br />

in 1980 <strong>and</strong> to 12 (3.8) in 1996; <strong>the</strong> human population, in a largely livestockbased<br />

economy, now has only one third <strong>of</strong> <strong>the</strong> livestock per capita that it had<br />

in 1950.<br />

The changes in overall stocking over time is shown graphically in<br />

Figure 7.3.<br />

Herd composition , <strong>of</strong> course, reflects ecological conditions <strong>and</strong> <strong>the</strong> type <strong>of</strong><br />

terrain. In Table 7.12 two aimags are compared. One, Tuv, is typical steppe;<br />

<strong>the</strong> o<strong>the</strong>r, Uvs, is semi -desert <strong>and</strong> mountainous. The aimags differ considerably<br />

in herd composition. Uvs, being arid , has far more camels than Tuv. The<br />

difference in horse numbers is striking, Tuv having double <strong>the</strong> Uvs percentage;<br />

Tarialan, at 10 percent, has a very low horse component. The arid sums<br />

have far higher proportions <strong>of</strong> small ruminants.


290<br />

Figure 7.3<br />

Evolution <strong>of</strong> stock unit s<br />

over time.<br />

10 000<br />

9 000<br />

8 000<br />

7 000<br />

6000<br />

5 000<br />

4 000<br />

3 000<br />

2 000<br />

1 000<br />

TABLE 7.12<br />

Proportion <strong>of</strong> species in two aimags .<br />

0<br />

Stock units '000<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

1918 1924 1930 1940 1950 1961 1970 1980 1985 1992 1996<br />

Stock U<br />

Camels % Horses % Cattle % Sheep % Goats %<br />

Uvs aimag 6.4 17.4 24.6 33.3 18.2<br />

Turgen sum 5.7 14.7 25.6 35.4 18.6<br />

Tarialan sum 6.1 10.4 25.0 37.2 21.2<br />

Tuv aimag 0.8 35.9 26.5 26.4 10.4<br />

Zaamar sum 0.0 31.1 34.0 22.2 12.7<br />

Lun sum 0.6 31.6 29.4 27.3 11.0<br />

SOURCE: Final report (September 2002) <strong>of</strong> <strong>the</strong> consultant on haymaking , pasture planning <strong>and</strong> fodder reserves , prepared<br />

for FAO TCP project TCP/MON/0066 – Pastoral risk management strategy.<br />

Plate 7.15<br />

Winter shelter.<br />

ALICE CARLONI


Grazing management in Mongolia 291<br />

Intensive livestock production<br />

Localized intensive livestock production grew up with <strong>the</strong> collective movement;<br />

both state farms <strong>and</strong> some negdels were involved. The main enterprises were<br />

dairying, using exotic stock in “mechanized dairies”, <strong>and</strong> pig <strong>and</strong> poultry rearing.<br />

All were aimed at supplying <strong>the</strong> urban market. An Artificial Insemination<br />

Service supported <strong>the</strong> dairy industry. Keeping exotic dairy stock in such a<br />

climate was always difficult <strong>and</strong> expensive, since <strong>the</strong>y have to be warmly<br />

housed in winter , <strong>and</strong> producing or procuring high-quality feed to suffice for<br />

<strong>the</strong> eight- to nine-month period when <strong>the</strong>re is no fresh grass was expensive in<br />

cultivated fodder <strong>and</strong> concentrates, which <strong>of</strong>ten had to be imported. Likewise<br />

pig <strong>and</strong> poultry farms were largely dependent on imported stock <strong>and</strong> feed.<br />

Since Economic Liberalization, most <strong>of</strong> <strong>the</strong> “mechanized dairies” <strong>and</strong> piggeries<br />

have collapsed, <strong>and</strong> <strong>the</strong>re is a serious scarcity <strong>of</strong> dairy products in urban areas.<br />

Some small-scale, semi -intensive dairying is developing in peri-urban areas<br />

<strong>and</strong> where cropping <strong>and</strong> grazing l<strong>and</strong> intermingle, but its progress is slow <strong>and</strong><br />

economic viability still unclear.<br />

Grazing management<br />

Although <strong>the</strong> first l<strong>and</strong> law was enacted in 1933, <strong>the</strong> introduction <strong>of</strong> collective<br />

production in <strong>the</strong> 1950s was <strong>the</strong> first major change from customary practice.<br />

A new law in 1971 introduced a classification <strong>of</strong> l<strong>and</strong> according to its use, <strong>and</strong><br />

<strong>the</strong> responsibilities, <strong>the</strong> obligations <strong>and</strong> rights <strong>of</strong> economic organizations <strong>and</strong><br />

<strong>the</strong> administration were defined, <strong>and</strong> l<strong>and</strong> tenure arrangements introduced.<br />

The pasture law <strong>of</strong> 2002 takes account <strong>of</strong> <strong>the</strong> changed political situation <strong>and</strong><br />

deals with factors such as: individual ownership (by herders, economic entities<br />

<strong>and</strong> organizations) <strong>and</strong> group owners (bag) <strong>of</strong> natural pasture <strong>and</strong> areas for<br />

winter <strong>and</strong> spring camps; rules for use <strong>of</strong> grazing in emergencies; stock-raising<br />

in settled areas; rules for contracting grazing to rights-holders; setting up <strong>of</strong><br />

inter-aimag <strong>and</strong> inter-sum otor [using distant pasture for fattening] areas; <strong>and</strong><br />

granting <strong>of</strong> haymaking rights to individuals <strong>and</strong> groups <strong>of</strong> herders. There are<br />

three major periods <strong>of</strong> otor: (i) spring otor for grazing young grass ; (ii) summer<br />

otor for developing enough muscle <strong>and</strong> internal fat; <strong>and</strong> (iii) autumn otor for<br />

consolidating fatness. There can also be emergency movement <strong>of</strong> large stock to<br />

grazing reserves in a hard winter. Customary grazing rights , however, remain<br />

powerful, <strong>and</strong> are a major factor when considering l<strong>and</strong> issues.<br />

Transhumance<br />

The regular movement <strong>of</strong> herds between summer <strong>and</strong> winter pastures is a<br />

widespread practice in pastoral areas <strong>of</strong> Europe <strong>and</strong> Asia. The classic cycle is<br />

from low ground in winter to mountain pastures in summer, <strong>of</strong>ten associated<br />

with alpine herbage that is snow-covered in winter. Transhumant grazing<br />

systems in Temperate Asia are dealt with in detail by Suttie <strong>and</strong> Reynolds<br />

(2003). The pattern <strong>of</strong> transhumance in <strong>the</strong> Mongolian steppe is not usually


292<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>of</strong> this classic kind; most <strong>of</strong> <strong>the</strong> precipitation is in <strong>the</strong> warmer months, windchill<br />

is a very serious winter hazard, <strong>and</strong> livestock are not housed in winter.<br />

Winter <strong>and</strong> spring camps, which are <strong>the</strong> key to transhumance, are chosen<br />

for availability <strong>of</strong> some shelter <strong>and</strong> access to forage <strong>and</strong> water. In <strong>the</strong> steppe,<br />

winter camps may be sited in valleys <strong>of</strong> suitable hills <strong>and</strong> in some areas riparian<br />

forests provide shelter. There are suggestions that in feudal times much <strong>of</strong> <strong>the</strong><br />

transhumance in <strong>the</strong> non-desert parts <strong>of</strong> Mongolia was longer, <strong>and</strong> <strong>of</strong> <strong>the</strong> plains<br />

to mountains <strong>and</strong> down again type ; <strong>the</strong>se movements would generally have<br />

been north-south; <strong>the</strong> present aimags tend to run east-west <strong>and</strong> <strong>the</strong>ir alignment<br />

may have been partially intended to change <strong>the</strong> traditional migration pattern.<br />

Movements may be more vertical in mountain areas, with winter camps<br />

generally at <strong>the</strong> hill-foot; mountain transhumance is usually over shorter horizontal<br />

distances than that <strong>of</strong> <strong>the</strong> steppe. Access to summer <strong>and</strong> autumn pasture<br />

is less contested than for winter camps <strong>and</strong>, within a sum or similar sub-unit,<br />

may be almost communally used. Grazing circuits cannot be firmly fixed under<br />

conditions <strong>of</strong> great variation in feed availability, which have many wea<strong>the</strong>rrelated<br />

causes; transhumance must be flexible <strong>and</strong> highly mobile so that herds<br />

can be taken to where feed is available, which may be much fur<strong>the</strong>r in some<br />

years than o<strong>the</strong>rs – this presupposes a degree <strong>of</strong> cooperation between graziers’<br />

groups ins<strong>of</strong>ar as one group will allow ano<strong>the</strong>r group emergency grazing<br />

should wea<strong>the</strong>r events make it necessary.<br />

Feed <strong>and</strong> shelter are not <strong>the</strong> only considerations governing movement; in<br />

some <strong>of</strong> <strong>the</strong> mountainous, western aimags , including Uvs, severe plagues <strong>of</strong><br />

biting insects force <strong>the</strong> population <strong>and</strong> <strong>the</strong>ir stock to seek high altitudes for <strong>the</strong><br />

hotter part <strong>of</strong> summer . Topography may determine migration routes; in high<br />

hills, stock movements may be obliged to use passes <strong>and</strong> this can influence<br />

itineraries <strong>and</strong> grazing systems ; passes may only be open for limited seasons<br />

<strong>and</strong> this again affects timing <strong>of</strong> movements. Detailed studies on systems in Uvs<br />

<strong>and</strong> Khuvsgul are reported by Erdenebaatar (2003).<br />

Risk in herding<br />

Herding in Mongolia is a risky undertaking <strong>and</strong> much <strong>of</strong> <strong>the</strong> herders’ work<br />

<strong>and</strong> planning involves avoiding or minimizing risks. The term zud describes<br />

serious wea<strong>the</strong>r events associated with snow <strong>and</strong> cold ; <strong>the</strong> major risks can<br />

be classified as zud, drought , disease <strong>and</strong> o<strong>the</strong>rs. Serious wea<strong>the</strong>r events, as<br />

defined for forecasting purposes, include: snowstorm: wind speed �12 m/s<br />

<strong>and</strong> visibility 3 hours; hail: �10 mm diameter, with<br />

no duration limit; ice cover on pastures: transformation <strong>of</strong> snow to ice by<br />

warming followed by sudden cold, lasting a week or longer. Risk in herding is<br />

discussed in detail by Baas, Erdenbaatar <strong>and</strong> Swift (2001). Zud <strong>and</strong> drought are<br />

traditional <strong>and</strong> effective controllers <strong>of</strong> stock numbers. From <strong>the</strong> point <strong>of</strong> view<br />

<strong>of</strong> pasture condition , a white zud has a double effect – it provides moisture for<br />

spring regrowth while reducing stock numbers. Zud takes several forms:


J.M. SUTTIE<br />

Grazing management in Mongolia 293<br />

Plate 7.16<br />

Small stock grazing through snow – Tuv.<br />

• Black zud occurs when, in winter , <strong>the</strong>re is a prolonged lack <strong>of</strong> snow <strong>and</strong> continued<br />

want <strong>of</strong> water because <strong>of</strong> freezing <strong>of</strong> surface sources, so both stock <strong>and</strong><br />

herders suffer from lack <strong>of</strong> water to drink. This type <strong>of</strong> zud does not occur<br />

every year, nor does it usually affect large areas. Wells provide water in black<br />

zud conditions, but <strong>of</strong>ten a long trek would be necessary <strong>and</strong>, at <strong>the</strong> wells ,<br />

shelter <strong>and</strong> bedding would not be available in <strong>the</strong> camping area.<br />

• White zud is caused by deep <strong>and</strong> prolonged snow cover (Plate 7.16). It is a<br />

frequent <strong>and</strong> serious disaster that has caused a great number <strong>of</strong> deaths. Opinion<br />

on how deep snow has to be to constitute zud varies: over 7 cm causes difficulties<br />

in Khangai yak pastures, while up to 10 cm leaves fodder accessible to<br />

small stock in <strong>the</strong> forest -steppe <strong>and</strong> steppe; in <strong>the</strong> steppe <strong>of</strong> less mountainous<br />

provinces, 6 cm is considered a zud. White zud is, <strong>of</strong> course, more serious if it<br />

follows a dry summer <strong>and</strong> herbage is short.<br />

• Storm zud is caused by continuous snowfall <strong>and</strong> drifting over large areas. If<br />

it occurs at <strong>the</strong> coldest time <strong>of</strong> year it is very dangerous; animals may run<br />

many kilometres before <strong>the</strong> wind <strong>and</strong> most mortality is through exhaustion<br />

or falling into rivers.<br />

• Khuiten zud is caused by extreme cold or freezing winds; when winter temperatures<br />

are 10°C below seasonal averages, stock can no longer graze freely,<br />

<strong>and</strong> expend much energy in maintaining body heat. It usually occurs when<br />

night temperatures drop sharply for two or more consecutive nights. Serious<br />

losses occur when khuiten zud follows white or storm zud.<br />

Drought , from <strong>the</strong> herders’ viewpoint, is a lack <strong>of</strong> rain during <strong>the</strong> warmer<br />

part <strong>of</strong> <strong>the</strong> year. Drought in late spring <strong>and</strong> early summer is <strong>the</strong> most serious<br />

since, at that season, <strong>the</strong> pasture recommences growth <strong>and</strong> <strong>the</strong> animals are in


294<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

TABLE 7.13<br />

Stock ownership during <strong>the</strong> collective period (percentage distrbution on a per head basis).<br />

Species State farm % Cooperatives % Private %<br />

Camels 1.7 84.5 13.8<br />

Horses 2.4 54.8 40.8<br />

Cattle ( 1) 2.2 46.0 43.6<br />

Sheep 2.0 80.2 17.8<br />

Goats 0.8 74.9 24.3<br />

NOTES: (1) Cattle includes yaks <strong>and</strong> <strong>the</strong>ir hybrids .<br />

SOURCE: Ministry <strong>of</strong> Agriculture <strong>and</strong> Food.<br />

greatest need <strong>of</strong> good forage to rebuild body condition <strong>and</strong> provide milk for<br />

<strong>the</strong>ir young. Drought over a wide area leads to concentration <strong>of</strong> livestock<br />

around water-points <strong>and</strong> areas <strong>of</strong> better grazing <strong>and</strong> thus causes damage to <strong>the</strong><br />

vegetation . In higher, cooler, sites, late summer rain has little effect on pasture<br />

growth since temperatures have already fallen too low.<br />

Uncontrolled fire can be serious; it rarely originates from, or near, gers or<br />

winter shelters since great care is taken in such flammable surroundings. In <strong>the</strong><br />

mountain regions, unprotected fires <strong>of</strong> hunters <strong>and</strong> ga<strong>the</strong>rers <strong>of</strong> wild fruit are a<br />

common cause. While accidental fire destroys st<strong>and</strong>ing forage <strong>and</strong> causes scarcity<br />

<strong>and</strong> wastes much labour in control (to protect gers <strong>and</strong> property as well as<br />

grazing ), controlled burning may be used to remove unpalatable old material<br />

<strong>and</strong> encourage a young flush. Predation, mainly from wolves, is an increasing<br />

risk now that <strong>the</strong> premium for wolf -killing has been removed. Protection <strong>of</strong><br />

snow leopard s in <strong>the</strong> Gobi Altai raises <strong>the</strong> problem <strong>of</strong> how to recompense<br />

herders for stock taken by <strong>the</strong>se rare <strong>and</strong> protected beasts. Stock <strong>the</strong>ft is a very<br />

rare risk, although <strong>the</strong>re have been reports recently <strong>of</strong> trans-border rustling<br />

in nor<strong>the</strong>rn frontier regions.<br />

Grazing management on negdels<br />

The grazing management <strong>of</strong> <strong>the</strong> collective period was based on limited<br />

mobility within <strong>the</strong> bounds <strong>of</strong> <strong>the</strong> negdel , <strong>and</strong> while brigades usually h<strong>and</strong>led<br />

monospecific herds, <strong>the</strong>y might overlap in space to provide multispecies grazing<br />

<strong>of</strong> <strong>the</strong> same pasture for greater efficiency; fur<strong>the</strong>r mixed grazing pressure was<br />

provided by <strong>the</strong> private stock <strong>of</strong> <strong>the</strong> families. The areas <strong>and</strong> seasons <strong>of</strong> grazing<br />

were specified by management , giving a broader coverage than at present <strong>and</strong><br />

avoiding undue concentration <strong>of</strong> stock. Organized marketing avoided both<br />

<strong>the</strong> build up <strong>of</strong> excess stock <strong>and</strong> <strong>the</strong> congregation <strong>of</strong> camps close to roads<br />

<strong>and</strong> centres. Details <strong>of</strong> stock ownership in <strong>the</strong> collective period are given in<br />

Table 7.13.<br />

THE PRESENT GRAZING SITUATION<br />

Change to private ownership shifted <strong>the</strong> responsibility for risk avoidance <strong>and</strong><br />

economic management abruptly from state to household. Herders very rapidly<br />

reverted to traditional mobile transhumance in small family groups. Ex-sala-


Grazing management in Mongolia 295<br />

ried staff took to herding with stock allocated to <strong>the</strong>m from negdel break-up,<br />

but not all succeeded: 100-150 head is considered to be <strong>the</strong> threshold herd size<br />

for a reasonable living; 50 is <strong>the</strong> poverty line. In 1995, over 40 percent <strong>of</strong> households<br />

had under 50 head, 45 percent had over 100, <strong>and</strong> only 15 percent owned<br />

over 200 animals. Controlled grazing has gone – in some areas pasture use is<br />

anarchic, with immigrant herders trespassing on <strong>the</strong> traditional l<strong>and</strong>s <strong>of</strong> o<strong>the</strong>rs.<br />

At neighbourhood <strong>and</strong> community levels, o<strong>the</strong>r customary institutions have<br />

re-emerged. Groups provide an approach to regulating access to grazing. They<br />

are <strong>of</strong>ten kinship-based <strong>and</strong> related to a natural grazing management unit, such<br />

as a valley, or, in dry areas, a water source. Hay <strong>and</strong> fodder are now negligible<br />

– overwintering survival depends on autumn condition <strong>and</strong> herding skills.<br />

Extensive herding , <strong>of</strong> course, continues, but <strong>the</strong> controlled grazing <strong>of</strong> <strong>the</strong><br />

collective period has gone. The transition has, however, given women a far<br />

greater role in decision-making since under <strong>the</strong> collective all <strong>the</strong> governmental<br />

bodies were overwhelmingly male although many veterinarians are women;<br />

women now take an active role in management <strong>and</strong> especially marketing.<br />

Water is a determining factor in pasture use, especially in <strong>the</strong> steppe <strong>and</strong><br />

Gobi regions (<strong>the</strong> mountain -steppe <strong>of</strong>ten has plentiful surface water); some<br />

areas can only be grazed in winter when snow is available as a water source;<br />

elsewhere wells supply, or used to provide, water; in <strong>the</strong> Gobi, herders’<br />

movements are governed by watering places. Breakdown <strong>of</strong> most <strong>of</strong> <strong>the</strong> deep<br />

“mechanical” water points has rendered many areas inaccessible, especially in<br />

<strong>the</strong> eastern steppe, where gazelle numbers are increasing as <strong>the</strong>y colonize <strong>the</strong><br />

deserted grazing .<br />

Much pasture is not used or is under-used. According to studies by FAO<br />

project TCP/MON/0066, as much as one-third <strong>of</strong> <strong>the</strong> total may be under-used.<br />

These pastures include areas along <strong>the</strong> borders, where <strong>the</strong>re are problems <strong>of</strong><br />

stock <strong>the</strong>ft ; in <strong>the</strong> eastern part, infrastructure is poorly developed <strong>and</strong> social<br />

problems <strong>of</strong> herders have not been solved; <strong>and</strong> in parts <strong>of</strong> western Mongolia<br />

<strong>the</strong>re is not enough water <strong>and</strong> o<strong>the</strong>r living materials. In 1990–1997, about 600<br />

new wells were sunk, but 12 800 remained out <strong>of</strong> operation; 10 700 000 ha <strong>of</strong><br />

pasture can not be used because <strong>of</strong> lack <strong>of</strong> water. Most unused l<strong>and</strong> is far from<br />

administrative centres <strong>and</strong> many herders are increasingly loath to travel so far,<br />

especially when infrastructure is deficient. In western Mongolia, where <strong>the</strong>re<br />

is shortage <strong>of</strong> pasture, <strong>the</strong>re are large areas that could be used as joint pasture<br />

between aimags , yet <strong>the</strong>y are not fully used.<br />

All herding families now keep multispecies herds, i.e. have at least three<br />

kinds <strong>of</strong> livestock that each comprise over 15 percent <strong>of</strong> <strong>the</strong> herd; subsidiary<br />

species are those forming under 10 percent, such as camels in many areas <strong>and</strong><br />

yak in <strong>the</strong> foothills <strong>of</strong> <strong>the</strong> mountain -<strong>and</strong>-steppe zone. Multispecies herds have<br />

many advantages, but increase <strong>the</strong> labour needed for herding. The different<br />

species vary in <strong>the</strong>ir grazing habits <strong>and</strong> preferences, so <strong>the</strong>refore a mixture<br />

makes better use <strong>of</strong> <strong>the</strong> overall forage available. Yak <strong>and</strong> horses, for example,


296<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

can go fur<strong>the</strong>r into <strong>the</strong> mountains than o<strong>the</strong>r stock; goats <strong>and</strong> camels make<br />

better use <strong>of</strong> browse. There is a complementarity <strong>of</strong> species in winter grazing:<br />

large stock, especially horses, are used to open trails in heavy snow cover to<br />

facilitate grazing by sheep <strong>and</strong> cattle . A mixed herd spreads risk much more<br />

than a monospecific one. Part <strong>of</strong> <strong>the</strong> necessity <strong>of</strong> mixed herds is, <strong>of</strong> course, <strong>the</strong><br />

herders’ needs for a range <strong>of</strong> products, including transport <strong>and</strong> traction.<br />

At pasture , <strong>the</strong> species (<strong>and</strong> at some seasons <strong>the</strong> sexes may be kept apart)<br />

are, <strong>of</strong> course, grazed in separate flocks. Breeding males may be herded out<br />

<strong>of</strong> season in a communal flock. The degree <strong>of</strong> attention varies with species.<br />

Small ruminants are usually closely supervised <strong>and</strong> brought back to <strong>the</strong> camp<br />

overnight as <strong>the</strong>y are more prone to attacks by predators . Cattle may be left to<br />

graze, except those being milked. Horses <strong>of</strong>ten graze unsupervised. Camels are<br />

usually left to <strong>the</strong>ir own devices except when used for transport.<br />

The herders’ year is divided according to <strong>the</strong> seasons. The winter <strong>and</strong> spring<br />

camps <strong>and</strong> grazing are <strong>the</strong> key to <strong>the</strong>ir overall system; each must provide shelter<br />

as well as accessible forage through that difficult season. Rights to winter<br />

grazing are jealously guarded <strong>and</strong> are frequently subject to dispute; finding<br />

winter grazing is a major problem for many “new” herding families. In contrast<br />

to many transhumance systems elsewhere, herders <strong>of</strong>ten go to <strong>the</strong> hills in<br />

winter to find shelter from <strong>the</strong> cold winds that sweep <strong>the</strong> steppe; <strong>the</strong> hills frequently<br />

have less snow <strong>and</strong> more accessible forage than <strong>the</strong> plains. Some areas<br />

are used in winter because water scarcity precludes <strong>the</strong>ir use when <strong>the</strong>re is no<br />

snow. Spring grazing is also critical, since it is <strong>the</strong>re that most <strong>of</strong> <strong>the</strong> young are<br />

born, at a season when feed is very scarce. Summer <strong>and</strong> autumn pasture is usually<br />

grazed in common, with few problems <strong>of</strong> access or dispute.<br />

Taking livestock to more distant fattening pastures – otor – is an important<br />

part <strong>of</strong> well organized herding <strong>and</strong>, if done with skill, can greatly improve <strong>the</strong><br />

condition <strong>of</strong> stock before <strong>the</strong> long winter . Going on otor, <strong>of</strong> course, requires<br />

effort <strong>and</strong> labour, <strong>and</strong> camping away from <strong>the</strong> main group , <strong>and</strong> may reduce<br />

surveillance <strong>of</strong> winter camp sites, but it is a key to better herd survival. Many<br />

herders now undertake much shorter transhumance circuits than previously.<br />

They also produce far less hay . Herders’ objectives in supplementary feeding<br />

are: to minimize loss <strong>of</strong> condition, ensuring better yield in <strong>the</strong> coming year <strong>and</strong><br />

enable early mating, mainly for cows <strong>and</strong> camels ; to improve disease resistance<br />

<strong>and</strong> lessen <strong>the</strong> incidence <strong>of</strong> abortion in small stock <strong>and</strong> mares ; to support<br />

suckling females <strong>and</strong> <strong>the</strong>ir young; <strong>and</strong> to maintain working stock. The herders<br />

contend that supplements to weak stock, once begun, must not be withdrawn<br />

before both wea<strong>the</strong>r <strong>and</strong> pasture conditions are suitable for <strong>the</strong> stock to forage<br />

for <strong>the</strong>mselves.<br />

Winter <strong>and</strong> spring shelters were a very useful innovation <strong>of</strong> <strong>the</strong> negdel ;<br />

<strong>the</strong>y are generally simple wooden structures sited in a sheltered spot <strong>and</strong> <strong>of</strong>ten<br />

south-facing; <strong>the</strong>y provide valuable protection to stock. With privatization, no<br />

rights to shelters have been assigned to herders, so <strong>the</strong>y are <strong>of</strong>ten now dilapi-


Grazing management in Mongolia 297<br />

dated, although little o<strong>the</strong>r than labour input is required to make <strong>the</strong>m useable.<br />

Mobility is an essential part <strong>of</strong> <strong>the</strong> system; previously ger-moving was facilitated<br />

by <strong>the</strong> provision <strong>of</strong> motor transport; now herders <strong>of</strong>ten have no access to<br />

or funds for lorries, <strong>and</strong> <strong>the</strong>ir movements are restricted. Carts <strong>and</strong> camels are<br />

returning as a means <strong>of</strong> moving, but <strong>the</strong>ir number is insufficient; wheels <strong>and</strong><br />

axles are scarce outside <strong>the</strong> forest zone <strong>and</strong> using <strong>the</strong>m to move requires much<br />

more labour <strong>and</strong> time than did a motorized move.<br />

With state subsidies for inputs removed <strong>and</strong> services reduced or absent,<br />

herders have reverted to traditional risk -management (in what has always been<br />

a risky environment), including keeping multispecies herds <strong>and</strong> cooperating<br />

with o<strong>the</strong>r households in herding tasks to help cope with <strong>the</strong> greater labour<br />

needs <strong>of</strong> diversified herds. The basis <strong>of</strong> this collaboration is <strong>the</strong> khot ail, a<br />

traditional level <strong>of</strong> household collaboration, camping <strong>and</strong> working in a group ,<br />

which existed before collectivization, especially for summer <strong>and</strong> autumn grazing<br />

. The sur <strong>of</strong> <strong>the</strong> negdels partly copied this, but avoided <strong>the</strong> kinship basis that<br />

is common in <strong>the</strong> khot ail. These units are <strong>of</strong>ten, but not necessarily, based on<br />

family ties, but associations between households with common interests are<br />

as important. The size <strong>of</strong> <strong>the</strong> khot ail varies with season <strong>and</strong> ecological zone:<br />

in <strong>the</strong> Gobi <strong>the</strong> khot ail <strong>of</strong>ten consists <strong>of</strong> a single household; in better watered<br />

areas up to five households may group toge<strong>the</strong>r.<br />

At neighbourhood <strong>and</strong> community levels, o<strong>the</strong>r customary institutions have<br />

re-emerged. At neighbourhood level, groups provide an approach to regulating<br />

access to grazing . They are <strong>of</strong>ten kinship-based <strong>and</strong> related to a natural grazing<br />

management unit, such as a valley, or, in dry areas, a water source. They exist<br />

within <strong>the</strong> limits <strong>of</strong> a wider traditional unit, <strong>the</strong> bag, a customary institution that<br />

was responsible for pasture allocation <strong>and</strong> dispute settlement in <strong>the</strong> pre-collective<br />

era. Present bag boundaries are generally based on those <strong>of</strong> <strong>the</strong> brigades . A<br />

fur<strong>the</strong>r type <strong>of</strong> cooperation is appearing, in that many herders now store <strong>the</strong>ir<br />

winter gear that is not required on migration; since winter camps are not secure,<br />

<strong>the</strong> storage is <strong>of</strong>ten with people settled at <strong>the</strong> sum centre; payment may be in<br />

kind or by o<strong>the</strong>r services.<br />

The socio-economic changes have had a marked effect on access to basic<br />

foodstuffs <strong>and</strong> <strong>the</strong> dietary pattern <strong>of</strong> <strong>the</strong> herders. FAO (1996) stated:<br />

“Herders are self-sufficient in meat <strong>and</strong> milk products <strong>and</strong> consumption <strong>of</strong> those products<br />

increased by 30 percent <strong>and</strong> 50 percent, respectively, between 1990 <strong>and</strong> 1992. In <strong>the</strong> same period<br />

<strong>the</strong> consumption <strong>of</strong> o<strong>the</strong>r food decreased, e.g. by 40 percent for flour <strong>and</strong> by more than 80 percent<br />

for various food grains. This was a result <strong>of</strong> <strong>the</strong> worsening <strong>of</strong> rural trading services, as herders<br />

could only get commodity goods in sum centres, instead <strong>of</strong> from brigade centres <strong>and</strong> travelling<br />

agents as previously.”<br />

Reforms have changed a highly organized grazing system into one where<br />

privately-owned livestock graze public l<strong>and</strong>; this is <strong>of</strong>ten a certain recipe for<br />

pasture abuse. Although ownership <strong>of</strong> l<strong>and</strong> is <strong>of</strong>ten a prerequisite for its good<br />

management , this is not <strong>the</strong> case for extensive grazing l<strong>and</strong> in Mongolia (for


298<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

arable , intensive livestock, residential <strong>and</strong> mining l<strong>and</strong> <strong>the</strong> situation is different);<br />

some form <strong>of</strong> group registration <strong>of</strong> grazing rights is considered adequate <strong>and</strong><br />

more desirable. The reasons quoted by Mearns <strong>and</strong> Swift (1996) <strong>and</strong> <strong>the</strong> Policy<br />

Alternatives for Livestock Development (PALD) team (Mearns, 1993), are:<br />

“There are strong arguments in favour <strong>of</strong> increasing security <strong>of</strong> tenure over pasture l<strong>and</strong> in<br />

Mongolia ’s extensive livestock sector in order to promote sustainable l<strong>and</strong> management <strong>and</strong><br />

reduce conflicts over pasture. It is more likely that individualized, private ownership <strong>of</strong> pasture<br />

l<strong>and</strong>, under Mongolian conditions, would actually increase conflict <strong>and</strong> jeopardise environmental<br />

stability, particularly given <strong>the</strong> lack <strong>of</strong> administrative capacity to enforce such rights .<br />

“While ownership <strong>of</strong>ten increases investment <strong>and</strong> creates a dem<strong>and</strong> for <strong>and</strong> a supply <strong>of</strong> credit,<br />

since <strong>the</strong> l<strong>and</strong> would be managed as a capital good in which investments must be made to<br />

promote sustainability <strong>and</strong> prevent l<strong>and</strong> degradation . This assumption does not hold for most<br />

pasture l<strong>and</strong> in Mongolia ’s extensive livestock sector in which few if any external inputs are<br />

required to maintain productivity . Sustainable pasture management in such an environment<br />

depends primarily on mobility <strong>and</strong> flexibility ra<strong>the</strong>r on capital investment. There are certain<br />

exceptions: investment may be made in winter /spring camps <strong>and</strong> shelters <strong>and</strong> in wells <strong>and</strong> o<strong>the</strong>r<br />

water resources <strong>and</strong> <strong>the</strong>re may be a dem<strong>and</strong> for credit to overcome transport constraints in seeking<br />

to maintain mobility. But it is not clear in <strong>the</strong> Mongolian case that lack <strong>of</strong> secure title is <strong>the</strong><br />

principle obstacle to supply <strong>of</strong> such credit, nor that it could not be satisfied by means <strong>of</strong> certified<br />

possession rights at <strong>the</strong> level <strong>of</strong> a group such as <strong>the</strong> khot ail, which is <strong>the</strong> appropriate level at which<br />

most such investments are likely to be made.<br />

“In addition <strong>the</strong>re are strong ecological reasons why <strong>the</strong> development <strong>of</strong> a market in pasture<br />

l<strong>and</strong> would be undesirable. Sustainable l<strong>and</strong> use under an extensive grazing system requires<br />

mobility <strong>of</strong> livestock between pastures suitable for use in each season. Such seasonal pastures must<br />

be shared between neighbouring households since <strong>the</strong>ir patterns <strong>of</strong> movement overlap <strong>and</strong> vary<br />

between years according to forage availability. The spatial arrangement <strong>of</strong> Mongolian l<strong>and</strong>scapes<br />

vary considerably between ecological zones ; larger areas are required to encompass l<strong>and</strong> suitable<br />

for all seasons in desert -steppe zones, while smaller areas are required in <strong>the</strong> steppe <strong>and</strong> mountain<br />

-forest -steppe zones. In most cases <strong>the</strong> risk <strong>of</strong> drought <strong>and</strong>/or zud , among o<strong>the</strong>r natural hazards,<br />

requires that herders have access to traditional areas <strong>of</strong> pasture for emergency use. Taken<br />

toge<strong>the</strong>r <strong>the</strong>se factors account for <strong>the</strong> indivisibility <strong>of</strong> pasture l<strong>and</strong> in Mongolia below a certain<br />

spatial scale varying by ecological zone. On no account should transfers <strong>of</strong> l<strong>and</strong> be permitted that<br />

would fragment in any way <strong>the</strong>se minimum sustainable pasture resource areas.”<br />

Herders can obtain title to <strong>the</strong>ir winter camp-sites, but not to <strong>the</strong> winter<br />

grazing l<strong>and</strong> . Winter migration from drier areas (Plate 7.17) to better watered<br />

sums is a serious problem. The incomers can graze all winter, by right, putting<br />

great pressure on already heavily used winter pasture . They <strong>the</strong>n graze <strong>the</strong><br />

early spring growth before returning to <strong>the</strong>ir home areas (Plate 7.18).<br />

Improving pasture management <strong>and</strong> production<br />

The constraints to sustainable grazing management in Mongolia have been<br />

discussed above. The harsh climatic conditions are not a constraint; <strong>the</strong>y are<br />

<strong>the</strong> reason for <strong>the</strong> extensive , mobile , animal production, based exclusively


J.M. SUTTIE<br />

J.M. SUTTIE<br />

Grazing management in Mongolia 299<br />

Plate 7.17<br />

Desert steppe near Khyargas Lake – Uvs.<br />

Plate 7.18<br />

Baggage camel beside marshl<strong>and</strong> pasture by Uvs Lake.<br />

on natural pasture , that has proved sustainable over many centuries. Many<br />

constraints are organizational ra<strong>the</strong>r than technical, <strong>and</strong> have <strong>the</strong>ir roots ei<strong>the</strong>r<br />

in <strong>the</strong> present economic situation <strong>of</strong> <strong>the</strong> region or changes in governmental<br />

policy during <strong>the</strong> twentieth century. The main organizational constraint is<br />

<strong>the</strong> lack <strong>of</strong> recognition, or title to, grazing rights , especially for winter camps<br />

<strong>and</strong> hayfields; legislation to deal with this is under consideration. Lack <strong>of</strong>


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regulation <strong>of</strong> grazing is becoming serious locally, with <strong>the</strong> ab<strong>and</strong>onment <strong>of</strong><br />

some areas <strong>and</strong> overuse <strong>of</strong> o<strong>the</strong>rs; a revitalized monitoring system is needed to<br />

provide a factual basis for advice <strong>and</strong> control on <strong>the</strong> use <strong>and</strong> maintenance <strong>of</strong><br />

grazing l<strong>and</strong> . Herders are not organized above <strong>the</strong> family group , khot ail, level,<br />

which is too small for decision-making over <strong>the</strong> very large areas <strong>of</strong> l<strong>and</strong> needed<br />

for management under extensive herding .<br />

Guidelines on grazing management are a necessary adjunct to any advice<br />

<strong>and</strong> control <strong>of</strong> use; <strong>the</strong>se must be developed with herder participation , after<br />

organization <strong>of</strong> <strong>the</strong> herding community. National guidelines may be necessary<br />

as a framework, but it will be necessary to develop a series <strong>of</strong> o<strong>the</strong>rs that take<br />

into account <strong>the</strong> ecological conditions, situation, topography <strong>and</strong> production<br />

systems <strong>of</strong> individual areas: it is at that level that very close consultation with<br />

<strong>the</strong> users will be necessary. While rising stock numbers are a cause for concern,<br />

<strong>the</strong>y were up to near present-day levels during <strong>the</strong> 1950s; <strong>the</strong> rapid rise in <strong>the</strong><br />

human population <strong>and</strong> <strong>the</strong> increase in <strong>the</strong> number <strong>of</strong> herding families, however,<br />

is likely to make control <strong>of</strong> grazing pressure even more difficult.<br />

Herders have been affected by a reduction in <strong>the</strong> levels <strong>of</strong> services available<br />

<strong>and</strong> have not yet come to terms with having to help <strong>the</strong>mselves, where previously<br />

decisions were taken <strong>and</strong> services provided centrally. Lack <strong>of</strong> availability<br />

<strong>of</strong> selected breeding stock is noticeable, although that may change if markets<br />

<strong>and</strong> pr<strong>of</strong>itability improve. Lack <strong>of</strong> marketing infrastructure affects access to<br />

outside purchasers as well as both <strong>of</strong>ftake <strong>and</strong> <strong>the</strong> quality <strong>of</strong> products on sale.<br />

Similarly, lack <strong>of</strong> access to consumer goods <strong>and</strong> supplies reduces <strong>the</strong> incentive<br />

to sell, <strong>and</strong> may lead to accumulation <strong>of</strong> non-breeding stock. The closure<br />

<strong>of</strong> <strong>the</strong> State Emergency Fodder Fund has thrown herders back on <strong>the</strong>ir own<br />

resources for supplementary fodder supply. Research, training <strong>and</strong> technical<br />

support services now operate on very reduced budgets.<br />

Opportunities for improving grazing management <strong>and</strong> herbage condition<br />

while maintaining <strong>and</strong> increasing output are many. Mongolia ’s grazing l<strong>and</strong>s<br />

are well suited to extensive livestock raising <strong>and</strong> are generally in good condition.<br />

Herding has always been <strong>the</strong> main national occupation, <strong>and</strong> <strong>the</strong> people<br />

are highly skilled <strong>and</strong> motivated. They also have <strong>the</strong> support <strong>of</strong> a solid body <strong>of</strong><br />

technical expertise <strong>and</strong> knowledge. Once legal problems associated with grazing<br />

rights have been resolved, coupled with <strong>the</strong> organization <strong>of</strong> <strong>the</strong> herding<br />

population, <strong>the</strong> industry should be able to manage its resources properly while<br />

improving <strong>the</strong> livelihood <strong>of</strong> <strong>the</strong> rural population.<br />

Many <strong>of</strong> <strong>the</strong> actions to remove or palliate <strong>the</strong>se constraints require administrative<br />

decisions or actions: definition <strong>and</strong> granting <strong>of</strong> grazing rights , probably<br />

emphasizing winter camps <strong>and</strong> hay l<strong>and</strong>s in <strong>the</strong> first instance; a structure for<br />

<strong>the</strong> organization <strong>of</strong> <strong>the</strong> herding population so that <strong>the</strong>y can participate in <strong>the</strong><br />

regulation <strong>of</strong> local l<strong>and</strong> use as well as pasture management , development <strong>and</strong><br />

maintenance, all <strong>of</strong> which must have functional user participation ; monitoring<br />

<strong>of</strong> pasture condition <strong>and</strong> regulation <strong>of</strong> its use, which will also require <strong>the</strong>


Grazing management in Mongolia 301<br />

participation <strong>of</strong> herders’ associations, as will <strong>the</strong> establishment <strong>of</strong> guidelines<br />

(down to local level) on <strong>the</strong> use <strong>of</strong> grazing l<strong>and</strong> . Research <strong>and</strong> training must be<br />

maintained <strong>and</strong>, at herder level, exp<strong>and</strong>ed. Rehabilitation <strong>of</strong> water supplies <strong>and</strong><br />

revitalization <strong>of</strong> haymaking are two very obvious activities for better pasture<br />

use <strong>and</strong> stock survival; <strong>the</strong>se can now only be tackled by <strong>the</strong> herding communities<br />

, once organized. Haymaking by individual households needs access to<br />

simple implements, security <strong>and</strong> training. Water development must await both<br />

granting <strong>of</strong> grazing rights <strong>and</strong> organization <strong>of</strong> <strong>the</strong> users before it has a realistic<br />

chance <strong>of</strong> success.<br />

Some large tracts <strong>of</strong> unused pasture were previously reserve otor areas for<br />

emergencies <strong>and</strong> could have been useful in recent zuds; however, to be useful,<br />

<strong>the</strong>y require rehabilitation <strong>of</strong> <strong>the</strong> water supply <strong>and</strong> o<strong>the</strong>r basic infrastructure,<br />

<strong>and</strong>, when in use, <strong>the</strong> herders would need access to some sources <strong>of</strong> supplies<br />

<strong>and</strong> facilities.<br />

THE RECENT DROUGHTS AND ZUDS<br />

Stock numbers have risen sharply since decollectivization. A series <strong>of</strong><br />

consecutive dry summers <strong>and</strong> <strong>the</strong> disastrously severe winters <strong>of</strong> 1999–2000<br />

<strong>and</strong> 2000–2001 have shown up this lack <strong>of</strong> preparedness <strong>of</strong> herders for severe<br />

wea<strong>the</strong>r. Over 2 million head <strong>of</strong> stock were lost in each year (see Table 7.14)<br />

<strong>and</strong> much human poverty <strong>and</strong> misery has ensued.<br />

Two consecutive years, 1999–2000 <strong>and</strong> 2000–2001 have had <strong>the</strong> harsh combination<br />

<strong>of</strong> drought followed by zud : stock suffering on thin pastures in <strong>the</strong><br />

growing season <strong>and</strong> being unable to feed because <strong>of</strong> hardened snow in winter .<br />

This is, <strong>of</strong> course, a regular risk in herding under such climatic conditions. The<br />

greatest disaster was 1944–1945, when 8 million adult stock were lost. Eight<br />

zud winters have been recorded since <strong>the</strong>n, <strong>the</strong> worst pre-2000 being in 1967.<br />

These zuds are defined by stock losses, not meteorological data; for much <strong>of</strong> <strong>the</strong><br />

time when zud has been recorded <strong>the</strong>re was a well organized system <strong>of</strong> grazing<br />

management , shelters were maintained <strong>and</strong> winter feed conserved – emergency<br />

TABLE 7.14<br />

Livestock losses through drought <strong>and</strong> zud (head).<br />

Year Type <strong>of</strong> disaster Losses <strong>of</strong> adult stock Losses <strong>of</strong> young stock<br />

1944–45 Drought + zud 8 100 000 1 100 000<br />

1954–55 Zud 1 900 000 300 000<br />

1956–57 Zud 1 500 000 900 000<br />

1967–68 Drought + zud 2 700 000 1 700 000<br />

1976–77 Zud 2 000 000 1 600 000<br />

1986–87 Zud 800 000 900 000<br />

1993–94 Zud 1 600 000 1 200 000<br />

1996–97 Zud 600 000 500 000<br />

1999–00 Drought + zud 3 000 000 1 200 000<br />

2000–01 Drought + zud 3 400 000 n. a.<br />

NOTE: n.a. = data not available.


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systems were probably better equipped as well. It is not clear, <strong>the</strong>refore, to<br />

what extent <strong>the</strong> recent losses are a reflection <strong>of</strong> severe wea<strong>the</strong>r events <strong>and</strong> how<br />

much is due to lack <strong>of</strong> preparedness by herders <strong>and</strong> authorities. Stock numbers<br />

have risen very steeply since 1990, <strong>and</strong> this may have been a contributing factor<br />

to <strong>the</strong> severe losses.<br />

Relief, once zud has struck <strong>and</strong> local reserves are inadequate, is not only<br />

costly, it is <strong>of</strong>ten ineffective, since <strong>the</strong> time taken to procure, mobilize <strong>and</strong><br />

deliver feed is such that <strong>the</strong> relief fodder arrives once many stock have died <strong>and</strong><br />

<strong>of</strong>ten spring has come <strong>and</strong> <strong>the</strong> grass is greening up. This was strikingly demonstrated<br />

in 2001. The quality <strong>of</strong> fodder used in relief work is ano<strong>the</strong>r problem:<br />

local hay is <strong>of</strong> low feeding value <strong>and</strong> <strong>the</strong> economics <strong>of</strong> transporting such a poor<br />

feed over long distances is dubious. Unfortunately, since Mongolia produces<br />

little in <strong>the</strong> way <strong>of</strong> crops , cereals, which would be a far better emergency fodder<br />

<strong>and</strong> cheaper to transport, are not available.<br />

Following <strong>the</strong> 1993 zud , “restocking” <strong>of</strong> herders was undertaken on a fairly<br />

large scale in <strong>the</strong> hope that it would be an effective means <strong>of</strong> poverty alleviation,<br />

notably with IFAD financing in Arkhangai. Restocking is <strong>the</strong> redistribution<br />

<strong>of</strong> stock to herding families that have herds below <strong>the</strong> economic minimum.<br />

The recent zuds, however, have indicated that such restocking on its own is<br />

not really sustainable – restocked herders are just as prone to losses during<br />

zud as <strong>the</strong>y were before. Unless <strong>the</strong> o<strong>the</strong>r faults are dealt with – preparedness<br />

<strong>of</strong> herders, maintenance <strong>of</strong> shelters, reconstitution <strong>of</strong> emergency services <strong>and</strong><br />

resolution <strong>of</strong> <strong>the</strong> grazing rights problem – restocking is likely to be expensive<br />

<strong>and</strong> <strong>of</strong> transient benefit.<br />

SUSTAINABILITY<br />

Herding has been almost <strong>the</strong> sole l<strong>and</strong> use <strong>of</strong> Mongolia for millennia <strong>and</strong> its<br />

pastures, although hard grazed, are still in reasonably good order. Extensive,<br />

mobile grazing systems are <strong>the</strong>refore sustainable <strong>and</strong> will continue to be <strong>the</strong><br />

main economic activity <strong>of</strong> <strong>the</strong> country. During <strong>the</strong> collective period, Mongolia<br />

maintained a modified system <strong>of</strong> mobile grazing, using hardy local breeds <strong>of</strong><br />

livestock <strong>and</strong> without external sources <strong>of</strong> feed; its pastures have remained in<br />

good order in contrast to most <strong>of</strong> <strong>the</strong> neighbouring countries that collectivized<br />

<strong>the</strong>ir livestock industry.<br />

Most <strong>of</strong> <strong>the</strong> neighbouring countries (Kyrgyzstan , Buryatya, parts <strong>of</strong><br />

Nor<strong>the</strong>rn China ) that collectivized livestock modified <strong>the</strong>ir grazing systems ,<br />

<strong>of</strong>ten restricting movement or sedentarizing <strong>the</strong> herders. In some cases, exotic<br />

stock was introduced <strong>and</strong> imported feed brought in, permitting better overwintering<br />

but also leading to severe overstocking. Pasture condition in <strong>the</strong>se countries<br />

is much worse than in Mongolia ; for example, <strong>the</strong> degradation <strong>of</strong> pasture<br />

in <strong>the</strong> Ningxia Autonomous Region <strong>of</strong> China is described by Ho (1996). In <strong>the</strong><br />

case <strong>of</strong> Kyrgyzstan, <strong>the</strong> sheep industry, based on exotic fine-wool breeds <strong>and</strong><br />

imported feed, collapsed after decollectivization, with stock numbers falling


Grazing management in Mongolia 303<br />

from 9 500 000 in 1990 to 3 200 000 in 1999 (van Veen, 1995; Fitzherbert, 2000),<br />

as <strong>the</strong> exotic sheep could not survive without large, uneconomic inputs.<br />

REFERENCES<br />

Baas, S., Erdenbaatar, B. & Swift, J.J. 2001. Pastoral risk management for disaster<br />

prevention <strong>and</strong> preparedness in Central Asia – with special reference to<br />

Mongolia . In: Report <strong>of</strong> <strong>the</strong> Asia-Pacific conference on early warning, prevention,<br />

preparedness <strong>and</strong> management <strong>of</strong> disasters in food <strong>and</strong> agriculture. Chiangmai,<br />

Thail<strong>and</strong>, 12–15 June 2001. FAO RAP Publication No. 2001:4. Doc. no.<br />

APDC/01/REP.<br />

Batsukh, B. & Zagdsuren, E. 1990. Sheep Breeds <strong>of</strong> Mongolia . FAO <strong>World</strong> Animal<br />

Review.<br />

Cai Li & Weiner, J. 1995. The Yak . FAO RAP, Bangkok, Thail<strong>and</strong>.<br />

Erdenebaatar, B. 1996. Socio-economic aspects <strong>of</strong> <strong>the</strong> pastoral movement pattern <strong>of</strong><br />

Mongolian herders. pp. 59–110, in: Humphrey <strong>and</strong> Sneath, 1996b, q.v.<br />

Erdenebaatar, B. 2003. Studies on long distance transhumant grazing systems in Uvs<br />

<strong>and</strong> Khuvsgul aimags <strong>of</strong> Mongolia , 1999–2000. pp. 31–68, in: Suttie <strong>and</strong> Reynolds,<br />

2003, q.v.<br />

FAO. 1996. Trends in pastoral development in Central Asia . Rome, Italy.<br />

FAO/UNESCO. 1978. Soil Map <strong>of</strong> <strong>the</strong> <strong>World</strong>. Vol. III: North <strong>and</strong> Central Asia . Paris,<br />

France: UNESCO.<br />

Fitzherbert, A.R. 2000. Pastoral resource pr<strong>of</strong>ile for Kyrgyzstan . Available at:<br />

http://www.fao.org /waicent/faoinfo/agricult/AGP/AGPC/doc/Counpr<strong>of</strong>/kyrgi.<br />

htm<br />

Ho, P. 1996. Ownership <strong>and</strong> control in Chinese rangel<strong>and</strong> management : <strong>the</strong> case <strong>of</strong><br />

free riding in Ningxia. ODI Pastoral Network Paper, No. 39c.<br />

Humphrey, C. & Sneath, D. 1996a. Pastoralism <strong>and</strong> institutional change in Inner<br />

Asia: comparative perspectives from <strong>the</strong> MECCIA research project. ODI Pastoral<br />

Network Paper, No. 39b.<br />

Humphrey C. & Sneath, D. (eds). 1996b. Culture <strong>and</strong> environment in inner Asia: I.<br />

Pastoral economy <strong>and</strong> <strong>the</strong> environment. Cambridge, UK: White Horse Press.<br />

Kharin, N., Takahashi, R. & Harahshesh, H. 1999. Degradation <strong>of</strong> <strong>the</strong> dryl<strong>and</strong>s <strong>of</strong><br />

Central Asia . Center for Remote Sensing (CEReS), Chiba University, Japan.<br />

Latham, R.E. (translator). 1958. The Travels <strong>of</strong> Marco Polo. Harmondsworth, UK:<br />

Penguin.<br />

Mearns, R. 1993. Pastoral Institutions, L<strong>and</strong> Tenure <strong>and</strong> L<strong>and</strong> Policy Reform in Post-<br />

Socialist Mongolia . PALD Research Report, No. 3. University <strong>of</strong> Sussex, UK.<br />

Mearns, R. & Swift, J. 1996. Pasture <strong>and</strong> l<strong>and</strong> management in <strong>the</strong> retreat from a centrally<br />

planned economy in Mongolia . pp. 96–98, in: N. West (ed). Rangel<strong>and</strong>s for a<br />

Sustainable Biosphere. Proceedings <strong>of</strong> <strong>the</strong> 5th International Rangel<strong>and</strong> Conference,<br />

1995. Denver, Colorado, USA : Society for Range Management.<br />

Przevalsky, N.M. 1883. The third expedition in Central Asia . Sankt-Petersburg.<br />

Quoted by Kharin, Takahashi <strong>and</strong> Harahesh, 1999: 56.


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Suttie, J.M. & Reynolds, S.G. (eds). 2003. Transhumant grazing systems in Temperate<br />

Asia. FAO Plant Production <strong>and</strong> Protection Series, No. 31.<br />

Telenged, B. 1996. Livestock breeding in Mongolia . pp. 161–188, in: Humphrey <strong>and</strong><br />

Sneath, 1996b, q.v.<br />

van Veen, T.W.S. 1995. Kyrgyz sheep herders at crossroads. ODI Pastoral Network<br />

Paper, No. 38d.


The Tibetan Steppe 305<br />

Chapter 8<br />

The Tibetan Steppe<br />

Daniel J. Miller<br />

SUMMARY<br />

The Tibet Plateau is a vast area to <strong>the</strong> north <strong>of</strong> <strong>the</strong> Himalaya between roughly<br />

26°50� <strong>and</strong> 39°11�N. The climate is severe continental, <strong>and</strong> most <strong>of</strong> <strong>the</strong> plateau is<br />

arid to semi -arid . Snow events in winter increase risk . Its high, cold grazing l<strong>and</strong>s<br />

vary from cold deserts <strong>and</strong> semi-arid steppe <strong>and</strong> shrubl<strong>and</strong>s, to alpine steppe<br />

<strong>and</strong> moist alpine meadows. Much is above 4 000 m; some camps are as high as<br />

5 100 m. It is traditionally an area <strong>of</strong> transhumant herding , but has undergone<br />

vast changes in <strong>the</strong> past half century – from feudalism, through a collective period,<br />

to privatized livestock <strong>and</strong> individual grazing rights that are circumscribing <strong>the</strong><br />

mobility necessary for herding risk avoidance in such a climate. Yak , sheep <strong>and</strong><br />

goats are kept, with yak more important in <strong>the</strong> wetter east <strong>and</strong> sheep in <strong>the</strong> west.<br />

The steppe contains <strong>the</strong> headwaters <strong>of</strong> many <strong>of</strong> <strong>the</strong> major rivers <strong>of</strong> Asia <strong>and</strong> has a<br />

very rich flora <strong>and</strong> fauna, with many endemic species, so grazing management is<br />

not only important for herders’ livelihoods but also for catchment maintenance<br />

<strong>and</strong> in situ preservation <strong>of</strong> genetic resources <strong>and</strong> biodiversity .<br />

INTRODUCTION<br />

The Tibetan Steppe is one <strong>of</strong> <strong>the</strong> earth’s important grazing ecosystems ,<br />

encompassing about 1.65 million km2 (Figure 8.1). The Tibetan Steppe<br />

ecosystem actually extends into north western Bhutan , nor<strong>the</strong>rn Nepal <strong>and</strong><br />

northwestern India , but this paper deals only with <strong>the</strong> l<strong>and</strong> within <strong>the</strong> Tibet<br />

Autonomous Region <strong>of</strong> <strong>the</strong> People’s Republic <strong>of</strong> China . Grazing l<strong>and</strong>s vary<br />

from cold deserts to semi -arid steppe <strong>and</strong> shrubl<strong>and</strong>s, to alpine steppe <strong>and</strong><br />

moist alpine meadows. It contains <strong>the</strong> highest grassl<strong>and</strong>s in <strong>the</strong> world, much<br />

is above 4 000 m; some herders maintain permanent camps at elevations as<br />

high as 5 100 m, among <strong>the</strong> highest inhabited places in <strong>the</strong> world. With a<br />

severe continental climate, it is one <strong>of</strong> <strong>the</strong> world’s harshest grazing environments,<br />

yet <strong>the</strong>se pastures supply forage for an estimated 12 million yak <strong>and</strong><br />

30 million sheep <strong>and</strong> goats (Plate 8.1), <strong>and</strong> provide livelihoods for about<br />

5 million pastoralists <strong>and</strong> agropastoralists.<br />

The remote, northwestern Steppe , one <strong>of</strong> <strong>the</strong> last notable examples <strong>of</strong> a grazing<br />

ecosystem relatively undisturbed by man, is home to a unique assemblage<br />

<strong>of</strong> wildlife . Wild yaks are still found in large herds, great concentrations <strong>of</strong><br />

Tibetan antelope continue to migrate between <strong>the</strong>ir winter pastures <strong>and</strong> sum-


306<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Figure 8.1<br />

Location <strong>of</strong> <strong>the</strong> Tibetan Steppe <strong>and</strong> <strong>the</strong> extent <strong>of</strong> grassl<strong>and</strong>s in <strong>the</strong> People’s Republic <strong>of</strong><br />

China .<br />

Plate 8.1<br />

Sheep flock.<br />

mer fawning grounds, <strong>and</strong> troops <strong>of</strong> wild ass (Plate 8.2) run across <strong>the</strong> steppes.<br />

Because <strong>of</strong> its highly distinctive species, ecological processes <strong>and</strong> evolutionary<br />

phenomena, <strong>the</strong> Tibetan Steppe is included in <strong>the</strong> <strong>World</strong> Wildlife Fund’s list <strong>of</strong><br />

Global 200 ecoregions that are priority biodiversity conservation areas (Olson<br />

<strong>and</strong> Dinerstein, 1997).<br />

DANIEL MILLER


DANIEL MILLER<br />

The Tibetan Steppe 307<br />

Plate 8.2<br />

Wild ass (Equus kiang ).<br />

Many major rivers originate in <strong>the</strong> Tibetan Steppe , including <strong>the</strong> Yellow,<br />

Yangtze, Mekong, Salween, Indus, Sutlej, Ganges <strong>and</strong> Brahmaputra. The preservation<br />

<strong>and</strong> management <strong>of</strong> <strong>the</strong>se sources have global implications, as <strong>the</strong>ir<br />

waters will be <strong>of</strong> increasing importance in <strong>the</strong> future. The challenges facing <strong>the</strong><br />

sustainable development <strong>of</strong> <strong>the</strong> steppe are considerable, but its pastures <strong>of</strong>fer<br />

numerous opportunities for achieving <strong>the</strong> twin objectives <strong>of</strong> conservation <strong>and</strong><br />

development <strong>of</strong> grassl<strong>and</strong> resources . Properly managed, grazing l<strong>and</strong>s can<br />

continue to be sources <strong>of</strong> water, provide wildlife habitat , feed for livestock <strong>and</strong><br />

contribute to overall economic development <strong>of</strong> <strong>the</strong> region.<br />

GENERAL DESCRIPTION<br />

The Tibetan Steppe is on <strong>the</strong> Tibet -Qinghai plateau in <strong>the</strong> People’s Republic <strong>of</strong><br />

China <strong>and</strong> adjoining regions <strong>of</strong> Bhutan , Nepal <strong>and</strong> India . The Himalaya marks<br />

its sou<strong>the</strong>rn boundary; <strong>the</strong> Kunlun, Arjin <strong>and</strong> Qilian Mountains delineate <strong>the</strong><br />

nor<strong>the</strong>rn boundary. The western limit is where <strong>the</strong> Himalaya, Karakoram,<br />

Kunlun <strong>and</strong> Pamir Mountains meet. In <strong>the</strong> east, <strong>the</strong> boundary extends along<br />

highl<strong>and</strong>s in Qinghai, western Gansu <strong>and</strong> Sichuan <strong>and</strong> into northwestern<br />

Yunnan. Encompassing about a quarter <strong>of</strong> China’s l<strong>and</strong>, <strong>the</strong> plateau stretches<br />

for almost 1 500 km north to south <strong>and</strong> for about 3 000 km from east to<br />

west – <strong>the</strong> largest plateau on earth. Over 80 percent is above 3 000 m <strong>and</strong> about<br />

half over 4 500 m (Schaller, 1998). The vegetation is mainly grazing l<strong>and</strong> , which<br />

is floristically distinctive, one <strong>of</strong> <strong>the</strong> largest <strong>of</strong> such ecosystems in <strong>the</strong> world<br />

(Schaller, 1998); at about 165 million hectares, it is 42 percent <strong>of</strong> China’s grazing<br />

area (Miller, 1999a). This vast grassl<strong>and</strong> is here termed <strong>the</strong> Tibetan Steppe; it


308<br />

Plate 8.3<br />

Harvested wheat in <strong>the</strong> Yarlung Tsangpo river valley.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

includes all grassl<strong>and</strong> in <strong>the</strong> Tibet Autonomous Region <strong>and</strong> Qinghai Province<br />

(118.4 million hectares), on <strong>the</strong> nor<strong>the</strong>rn flanks <strong>of</strong> <strong>the</strong> Kunlun Mountains in<br />

sou<strong>the</strong>rn Xinjiang (15 million hectares) <strong>and</strong> in western Sichuan (14 million<br />

hectares), northwestern Yunnan (5 million hectares) <strong>and</strong> western Gansu<br />

(12 million hectares). Less than one percent <strong>of</strong> <strong>the</strong> steppe is cultivated, although<br />

crops have exp<strong>and</strong>ed in recent decades, especially in <strong>the</strong> Qaidam Basin. In <strong>the</strong><br />

east <strong>of</strong> <strong>the</strong> plateau, crop l<strong>and</strong> is in <strong>the</strong> lower valleys; in western Tibet, along <strong>the</strong><br />

valley <strong>and</strong> tributaries <strong>of</strong> <strong>the</strong> Yarlung Tsangpo (Brahmaputra River). The upper<br />

limit <strong>of</strong> cultivation , which is as low as 3 300 m in some eastern parts, can reach<br />

4 400 m in <strong>the</strong> west. The major crops are barley, wheat (Plate 8.3), peas, rape<br />

<strong>and</strong> potatoes.<br />

The Tibetan Steppe has several distinct topographic regions determined<br />

by drainage <strong>and</strong> <strong>the</strong> parallel mountain ranges that divide it (Schaller, 1998).<br />

Only <strong>the</strong> east <strong>and</strong> south have outlets to <strong>the</strong> ocean; rivers originating in <strong>the</strong><br />

Kunlun Mountains flow north to <strong>the</strong> Taklimakan <strong>and</strong> Qaidam Deserts. Much<br />

<strong>of</strong> <strong>the</strong> Steppe consists <strong>of</strong> large lake basins with no outlets, ringed by mountains.<br />

Forests are limited to <strong>the</strong> eastern edge in western Sichuan, northwestern<br />

Yunnan, sou<strong>the</strong>astern Qinghai <strong>and</strong> eastern Tibet , <strong>and</strong> in some valleys on <strong>the</strong><br />

nor<strong>the</strong>rn slopes <strong>of</strong> <strong>the</strong> Himalaya .<br />

CLIMATE<br />

The Tibetan Steppe has a severe continental climate <strong>and</strong> is affected by <strong>the</strong><br />

sou<strong>the</strong>astern monsoon in summer <strong>and</strong> western air circulation patterns <strong>and</strong> high<br />

Mongol-Siberian air pressures in winter (Huang, 1987). The Steppe slopes to<br />

<strong>the</strong> sou<strong>the</strong>ast, so moisture from <strong>the</strong> southwest monsoon comes up gorges from<br />

S.G. REYNOLDS


The Tibetan Steppe 309<br />

<strong>the</strong> east <strong>and</strong> south <strong>and</strong> precipitation in summer decreases in a gradient from<br />

east to west <strong>and</strong> from south to north. The east <strong>of</strong> <strong>the</strong> Steppe is humid, <strong>the</strong> south<br />

is semi -arid , <strong>and</strong> far western Tibet is arid . The central Steppe, in a broad b<strong>and</strong><br />

from Gansu <strong>and</strong> Qinghai west through Tibet, is sub-frigid, humid in <strong>the</strong> east<br />

<strong>and</strong> semi-arid in <strong>the</strong> west. The nor<strong>the</strong>rn part Steppe is frigid <strong>and</strong> arid (Schaller,<br />

1998).<br />

In Lhasa, at 3 658 m, <strong>the</strong> average January temperature is -2°C, <strong>and</strong> in July it<br />

is 15°C; <strong>the</strong> absolute minimum is -16°C. Lhasa has about 130 frost-free days.<br />

In Naqu, at 4 507 m in nor<strong>the</strong>rn Tibet , <strong>the</strong> average temperature in January is<br />

-14°C, <strong>and</strong> 9°C in July; <strong>the</strong>re are only 20 frost-free days. Absolute minimum<br />

temperature in Naqu is -41°C. Temperature rises quickly during <strong>the</strong> day, but<br />

drops rapidly after sunset. The diurnal temperature range is 14 to 17°C (Huang,<br />

1987), with an annual average <strong>of</strong> 2 500 to 3 000 sunshine hours.<br />

Annual precipitation varies from about 600 mm in <strong>the</strong> east to under 60 mm<br />

in <strong>the</strong> west, most falls from June to September, <strong>of</strong>ten as wet snow <strong>and</strong> hail.<br />

Most <strong>of</strong> <strong>the</strong> pastoral area receives less than 400 mm per annum. Winters are<br />

generally dry , but periodical heavy snowfalls bury forage; low temperatures<br />

accompanying snowstorms put additional stress on livestock. Much <strong>of</strong> <strong>the</strong><br />

steppe, especially in <strong>the</strong> west, has strong winds, with 100-150 days in a year<br />

with wind speeds over 17 m/s.<br />

The eastern steppe receives enough precipitation (>400 mm) for <strong>the</strong> growth<br />

<strong>of</strong> forage, <strong>and</strong> <strong>the</strong> vegetation <strong>the</strong>re probably exhibits characteristics <strong>of</strong> an<br />

equilibrium system (Schaller, 1998). Dry spells in late spring <strong>and</strong> early summer<br />

may delay growth, but rainfall is fairly reliable <strong>and</strong> many pastures have<br />

luxuriant vegetation. In <strong>the</strong> central <strong>and</strong> western Steppe , forage production is<br />

more variable from year to year due to fluctuating rainfall. There are even<br />

remarkable differences in grass growth within a small area due to local rainfall<br />

events. Here, non-equilibrium ecosystem dynamics may exert more influence<br />

on <strong>the</strong> l<strong>and</strong>scape (Ellis <strong>and</strong> Swift, 1988; Laycock, 1991; Westoby, Walker <strong>and</strong><br />

Noy-Meir, 1989a). Classical equilibrium <strong>the</strong>ory may not be able to capture<br />

<strong>the</strong> uncertainty <strong>and</strong> variability in <strong>the</strong>se environments, making such concepts<br />

as carrying capacity <strong>and</strong> stocking rate less effective in predicting ecosystem<br />

productivity <strong>and</strong> dynamics .<br />

GRASSLAND BIODIVERSITY<br />

Central Asia is normally divided into <strong>the</strong> Mongolian <strong>and</strong> Tibetan floristic<br />

provinces; <strong>the</strong> latter includes <strong>the</strong> entire Tibetan plateau with <strong>the</strong> exception <strong>of</strong><br />

<strong>the</strong> Qaidam Basin, <strong>the</strong> Pamirs <strong>and</strong> southwestern Xinjiang . The Qaidam Basin<br />

is geographically part <strong>of</strong> Tibet , but its vegetation has more affinity with <strong>the</strong><br />

Mongolian province (Walter <strong>and</strong> Box, 1983). The Tibetan floristic province<br />

is divided into four regions: (1) <strong>the</strong> Nan Shan <strong>and</strong> Chamdo in <strong>the</strong> nor<strong>the</strong>ast;<br />

(2) <strong>the</strong> deep river valleys in <strong>the</strong> sou<strong>the</strong>ast; (3) <strong>the</strong> deep longitudinal valley <strong>of</strong><br />

<strong>the</strong> Yarlung Tsangpo in <strong>the</strong> south; <strong>and</strong> (4) <strong>the</strong> vast High Tibetan or Chang


310<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Tang. The steppe is a meeting ground <strong>of</strong> several floras, including Central Asian<br />

desert species, East Asian temperate , <strong>and</strong> Himalayan. In Tibet, over 2 000 plant<br />

species have been identified (Gu, 2000), mainly in <strong>the</strong> families Compositae (330<br />

species), Gramineae (277), Leguminosae (123), Rosaceae (102), Cyperaceae<br />

(102) <strong>and</strong> Polygonaceae (63). Over 1 720 species, accounting for 86 percent <strong>of</strong><br />

forage plants, occur in <strong>the</strong> humid <strong>and</strong> subhumid pastures <strong>of</strong> eastern Tibet, <strong>and</strong><br />

540 species, or 27 percent <strong>of</strong> forages, occur in <strong>the</strong> arid <strong>and</strong> semi -arid grassl<strong>and</strong>s<br />

<strong>of</strong> <strong>the</strong> northwest (Gu, 2000).<br />

The vegetation <strong>of</strong> <strong>the</strong> Plateau <strong>and</strong> its floral elements differ strongly from<br />

<strong>the</strong> subtropical mountain forest vegetation <strong>of</strong> sou<strong>the</strong>astern Tibet <strong>and</strong> adjoining<br />

regions (Chang, 1981). Plateau species have affinities with both Sino-<br />

Himalayan <strong>and</strong> Central Asia tic elements. Endemics comprise about 1 200, a<br />

quarter <strong>of</strong> all Tibetan species. Many dominants are endemics; Stipa purpurea<br />

is a dominant whose centre <strong>of</strong> importance is on <strong>the</strong> plateau. Aristida triseta<br />

, Orinus thoroldii <strong>and</strong> Trikeraia hookeri are also endemics in some <strong>of</strong> <strong>the</strong><br />

drier valleys. Dominants <strong>of</strong> <strong>the</strong> steppe shrubl<strong>and</strong>s (Sophora moorcr<strong>of</strong>tiana ,<br />

Caragana versicolar , Ceratostigma griffithii ) <strong>and</strong> some important companion<br />

species (Artemisia wellbyi , Astragalus malcolmi i ) are also endemics. The<br />

dominant in alpine desert vegetation, Ceratoides compacta , is considered to be<br />

a specialized species that was formed during <strong>the</strong> uplift <strong>of</strong> <strong>the</strong> Tibetan Plateau<br />

(Chang, 1981).<br />

A number <strong>of</strong> plants found on <strong>the</strong> grassl<strong>and</strong>s are valuable forage genetic<br />

resources . These include species such as Brachypodium sylvaticum , Bromus<br />

himalaicus , Dactylis glomerata , Duthiea brachypodium , Elymus nutans ,<br />

E. tangutorum , Festuca ovina , F. rubra , Phleum alpinum , Roegneria melan<strong>the</strong>ra<br />

<strong>and</strong> numerous species <strong>of</strong> Medicago . At least ten wild relatives <strong>of</strong> Medicago<br />

sativa are found <strong>the</strong>re (Gu, 2000). Many forages from <strong>the</strong> steppe are <strong>of</strong> interest<br />

for resistance to cold , arid <strong>and</strong> saline or alkaline conditions. Collaborative<br />

collection expeditions have been carried out by <strong>the</strong> United States Department<br />

<strong>of</strong> Agriculture <strong>and</strong> <strong>the</strong> Chinese Ministry <strong>of</strong> Agriculture to identify <strong>and</strong> collect<br />

forage germplasm.<br />

At <strong>the</strong> junction <strong>of</strong> <strong>the</strong> Palaearctic <strong>and</strong> Indo-Malayan biogeographic realms,<br />

<strong>the</strong> steppe supports diverse mammalian faunas. The northwest Steppe contains<br />

a unique assemblage <strong>of</strong> large mammals (Miller <strong>and</strong> Schaller, 1997). Ungulates,<br />

a number <strong>of</strong> which are endemic, are <strong>of</strong> special significance (Harris <strong>and</strong> Miller,<br />

1995): species such as Tibetan wild ass (Equus kiang ) (Plate 8.2), wild yak<br />

(Bos grunniens ), Tibetan antelope (Pantholops hodgsoni) <strong>and</strong> Tibetan gazelle<br />

(Procapra picticaudata) are found. The mountains provide habitat for blue<br />

sheep (Pseudois nayaur ) <strong>and</strong> Tibetan argali (Ovis ammon hodgsoni ). In <strong>the</strong><br />

mountains <strong>of</strong> <strong>the</strong> eastern Steppe, where forests mix with grassl<strong>and</strong>s, musk deer<br />

(Moschus sifanicus), MacNeil’s deer (Cervus elaphus macneilli), white -lipped<br />

deer (Cervus albirostris), roe deer (Capreolus capreolus bedford) <strong>and</strong> takin<br />

(Budorcas taxicolor) are found (Miller, 1998b). In sou<strong>the</strong>rn Tibet <strong>the</strong>re are still


The Tibetan Steppe 311<br />

scattered populations <strong>of</strong> Tibet red deer (Cervus elaphus wallichi). Around<br />

Qinghai Lake <strong>the</strong>re are some Przewalski’s gazelle (Procapra przewalskii).<br />

Goitered gazelle (Gazella subgutturosa) are found on <strong>the</strong> nor<strong>the</strong>rn edge <strong>of</strong> <strong>the</strong><br />

Plateau. Predators such as brown bear (Ursus arctos ), wolf (Canis lupus ), snow<br />

leopard (Uncia uncia), lynx (Felis lynx ), Tibetan steppe fox (Vulpes ferrilata)<br />

<strong>and</strong> red fox (Vulpes vulpes) are found on <strong>the</strong> grassl<strong>and</strong>s, <strong>and</strong> smaller mammals<br />

such as marmot (Marmota bobak) <strong>and</strong> pika (Ochotona spp.) are common<br />

(Miller <strong>and</strong> Jackson, 1994).<br />

In Tibet alone, over 500 species <strong>of</strong> bird have been recorded (Vaurie, 1970),<br />

including large predators : steppe eagles (Aquila nipalensis), upl<strong>and</strong> buzzards<br />

(Buteo hemilasius), saker falcons (Falco cherrug), goshawks (Accipiter gentilis),<br />

black kites (Milvus migrans) <strong>and</strong> little owls (A<strong>the</strong>ne noctua), several species <strong>of</strong><br />

snow finches (Montifringilla spp.), pheasants (Crossoptilon spp., Tetraogallus<br />

spp.), Tibetan s<strong>and</strong>grouse (Syrrhaptes tibetanus), as well as waterfowl such as<br />

black-necked cranes (Grus nigricollis), bar-headed geese (Anser indicus) <strong>and</strong><br />

ruddy shelduck (Tadorna ferruginea).<br />

Dominant natural vegetation<br />

Kingdom-Ward (1948) identified six subregions: (1) <strong>the</strong> interior plateau; (2) <strong>the</strong><br />

outer plateau; (3) <strong>the</strong> rainy gorge region; (4) <strong>the</strong> arid gorge region; (5) <strong>the</strong><br />

Qaidam Basin; <strong>and</strong> (6) Chinese Tibet , or <strong>the</strong> nor<strong>the</strong>astern part <strong>of</strong> <strong>the</strong> plateau.<br />

Scientific investigation <strong>of</strong> grassl<strong>and</strong> resources began in <strong>the</strong> 1960s, with surveys<br />

(Xizang Integrated Survey Team <strong>of</strong> Chinese Academy <strong>of</strong> Sciences, 1966, <strong>and</strong><br />

Qinghai <strong>and</strong> Gansu Integrated Survey Team <strong>of</strong> Chinese Academy <strong>of</strong> Sciences,<br />

1963). Chang (1981) divided vegetation on <strong>the</strong> Tibetan plateau into five major<br />

regions:<br />

• <strong>the</strong> high-cold or alpine meadow <strong>of</strong> eastern Tibet ;<br />

• xeric shrubl<strong>and</strong> <strong>and</strong> steppe along <strong>the</strong> valleys <strong>of</strong> <strong>the</strong> Yarlung Tsangpo <strong>and</strong><br />

Indus River in sou<strong>the</strong>rn Tibet ;<br />

• high-cold or alpine steppe in nor<strong>the</strong>rn Tibet ;<br />

• high-cold desert in northwestern Tibet ; <strong>and</strong><br />

• temperate desert in southwestern Tibet .<br />

Schaller (1998) followed Chang’s classification , but added a sixth region: <strong>the</strong><br />

Qaidam Basin. Within each region, <strong>the</strong>re is a diverse assortment <strong>of</strong> plant communities<br />

, varying in species composition <strong>and</strong> structure, <strong>and</strong> influenced by factors<br />

such as elevation, aspect, drainage <strong>and</strong> precipitation (Chang, 1983). For example,<br />

Chang <strong>and</strong> Gauch (1986) described 26 plant communities in western Tibet , <strong>and</strong><br />

Achuff <strong>and</strong> Petocz (1988) identified 18 communities in <strong>the</strong> Arjin Shan region<br />

<strong>of</strong> Xinjiang on <strong>the</strong> nor<strong>the</strong>rn edge <strong>of</strong> <strong>the</strong> Tibetan Steppe . The vegetation on <strong>the</strong><br />

plains has a broad horizontal zonation <strong>and</strong> a relatively narrow vertical zonation<br />

on <strong>the</strong> mountain slopes, both reflecting precipitation <strong>and</strong> elevation.<br />

The country’s grassl<strong>and</strong> resources were surveyed <strong>and</strong> mapped in <strong>the</strong> 1980s<br />

<strong>and</strong> classified into 17 types , based on climatic zonation, humidity index, veg-


312<br />

TABLE 8.1<br />

Grassl<strong>and</strong> types <strong>of</strong> <strong>the</strong> Tibetan Steppe .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Type Area ('000 ha) As percentage <strong>of</strong> total area<br />

Temperate meadow- steppe 210 0.16<br />

Temperate steppe 3 833 2.92<br />

Temperate desert - steppe 968 0.74<br />

Alpine meadow- steppe 5 626 4.28<br />

Alpine steppe 37 762 28.75<br />

Alpine desert - steppe 8 679 6.61<br />

Temperate steppe-desert 107 0.08<br />

Temperate desert 2 084 1.59<br />

Alpine desert 5 967 4.54<br />

Tropical tussock 9 –<br />

Tropical shrub tussock 28 0.02<br />

Temperate tussock 1 –<br />

Temperate shrub tussock 140 0.10<br />

Lowl<strong>and</strong> meadow 1 168 0.88<br />

Temperate mountain meadow 6 067 4.61<br />

Alpine meadow 58 652 44.64<br />

Marsh 21 0.01<br />

Total 131 322 99.93<br />

SOURCE: Adapted from Chen <strong>and</strong> Fischer, 1998, <strong>and</strong> Ni, 2002.<br />

etation type <strong>and</strong> importance to <strong>the</strong> livestock industry (CISNR, 1995, 1996).<br />

Within each type, a number <strong>of</strong> formations have been identified. Table 8.1 gives<br />

<strong>the</strong> seventeen types found in <strong>the</strong> steppe.<br />

Alpine meadow<br />

Alpine meadow , which makes up about 45 percent <strong>of</strong> <strong>the</strong> grassl<strong>and</strong> is found<br />

on valley floors <strong>and</strong> mountain slopes from about 3 500 to 4 500 m with annual<br />

precipitation over 400 mm, mainly in <strong>the</strong> east. It is widespread in southwestern<br />

Gansu, western Sichuan <strong>and</strong> sou<strong>the</strong>astern <strong>and</strong> sou<strong>the</strong>rn Qinghai, <strong>and</strong> extends<br />

into Tibet to <strong>the</strong> longitude <strong>of</strong> Lhasa. Fur<strong>the</strong>r west, alpine meadow is primarily<br />

riparian <strong>and</strong> in areas receiving melt water (Cincotta et al., 1991; Schaller, 1998).<br />

The soil is an alpine meadow soil averaging 20–40 cm in depth, <strong>and</strong> rich in<br />

organic matter. The surface layer is a substantial, resilient sod (Huang, 1987).<br />

Ni (2002) concluded that high carbon storage in alpine meadows <strong>of</strong> China , as<br />

a result <strong>of</strong> <strong>the</strong> thick sod layer, could have a significant <strong>and</strong> long-term effect on<br />

global carbon cycles.<br />

Alpine meadow is dominated by sedges <strong>of</strong> <strong>the</strong> genera Kobresia (Huang,<br />

1987); dominant species are Kobresia pygmaea , K. humilis , K. capillifolia ,<br />

K. setschwanensis , K. schoenoides <strong>and</strong> K. littledalei . Carex atr<strong>of</strong>usca , Polygonum<br />

viviparum <strong>and</strong> P. macrophyllum are <strong>the</strong> subdominant species in <strong>the</strong> alpine<br />

meadow, <strong>and</strong> numerous forbs are also found, including species in <strong>the</strong> genera<br />

Leontopodium , Anemone , Anaphalis , Polygonum, Pedicularis , Rheum ,<br />

Androsace , Gentiana , Ranunculus , Aconitum , Astragalus , Oxytropis , Primula<br />

<strong>and</strong> Potentilla . Grasses include Elymus nutans , Roegneria nutans , Koeleria


S.G. REYNOLDS<br />

The Tibetan Steppe 313<br />

Plate 8.4<br />

Elymus nutans .<br />

litwinowii , Helictotrichon tibeticum , Brachypodium sylvaticum , Stipa aliena ,<br />

Festuca rubra , F. ovina <strong>and</strong> Deschampsia cespitosa . Large areas <strong>of</strong> productive<br />

pasture are dominated by Elymus nutans (Plate 8.4) in <strong>the</strong> alpine meadow,<br />

especially in northwestern Sichuan, southwestern Gansu <strong>and</strong> eastern Qinghai.<br />

In swampy depressions in <strong>the</strong> alpine meadow <strong>the</strong>re is hummock vegetation<br />

dominated by Kobresia spp. (30-cm tall K. royleana <strong>and</strong> K. schoenoides). Shrub<br />

communities <strong>of</strong> plants such as Salix spp. , Caragana jubata , Potentilla fruticosa<br />

<strong>and</strong> Rhododendron spp. are common on nor<strong>the</strong>rn aspects in alpine meadow.<br />

Most Tibetan pastoralists <strong>and</strong> <strong>the</strong>ir stock are found in <strong>the</strong> alpine meadow<br />

region. Livestock densities can be high; in eastern Qinghai, stocking rates are<br />

28-70 animals/km 2 , <strong>and</strong> heavy grazing <strong>and</strong> trampling, toge<strong>the</strong>r with solifluction,<br />

have disturbed <strong>the</strong> sod layer, causing extensive rangel<strong>and</strong> degradation<br />

(Schaller, 1998).<br />

Alpine steppe<br />

The alpine steppe comprises almost 29 percent <strong>of</strong> <strong>the</strong> area <strong>and</strong> is found between<br />

3 500 <strong>and</strong> 4 600 m in <strong>the</strong> central <strong>and</strong> western steppe. Unlike <strong>the</strong> alpine meadow ,<br />

<strong>the</strong>re is no sod layer, <strong>and</strong> <strong>the</strong> soil is <strong>of</strong>ten gravel <strong>and</strong> coarse s<strong>and</strong>y loam; it is a<br />

variant <strong>of</strong> <strong>the</strong> temperate steppe under <strong>the</strong> cold conditions <strong>of</strong> <strong>the</strong> Tibetan plateau<br />

(Huang, 1987). Grasses <strong>of</strong> <strong>the</strong> genus Stipa dominate, <strong>of</strong>ten accompanied<br />

by cushion plants, with S. purpurea <strong>and</strong> S. subsessiliflora as <strong>the</strong> dominant<br />

grasses. Associated species are mainly xeric <strong>and</strong> meso-xeric grasses: Poa alpina<br />

(Plate 8.5), P. crymophila , P. dolichachyra , Roegneria nutans , R. thoroldiana ,<br />

Agropyron cristatum , Stipa aliena , Orinus thoroldii , Calamagrostis spp. , Festuca


314<br />

Plate 8.5<br />

Poa alpina .<br />

Plate 8.6<br />

Stock grazing on stubble after harvest.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

rubra , Kobresia spp. <strong>and</strong> Carex moorcr<strong>of</strong>tii . Shrubs include Potentilla fruticosa ,<br />

Ajana spp. , Artemisia spp. <strong>and</strong> Ceratoides compacta . Forbs include Potentilla<br />

bifurca , Dracocephalum heterophyllum , Heteropappus altaicus , Leontopodium<br />

spp. , Pedicularis spp. , Allium spp. , Oxytropis spp. <strong>and</strong> Astragalus spp. , with<br />

<strong>the</strong> cushion plants Androsace tapete , Arenaria musciformis <strong>and</strong> Oxytropis<br />

microphylla .<br />

A. PEETERS<br />

S.G. REYNOLDS


S.G. REYNOLDS<br />

The Tibetan Steppe 315<br />

Plate 8.7<br />

Turnips are becoming a popular crop for winter feed.<br />

Along <strong>the</strong> drainage <strong>of</strong> <strong>the</strong> Yarlung Tsangpo, in <strong>the</strong> rain-shadow <strong>of</strong> <strong>the</strong><br />

Himalaya , between 3 500 to 4 000 m on valley floors <strong>and</strong> lower mountain<br />

slopes, <strong>the</strong> dominant vegetation consists <strong>of</strong> xeric grasses such as Aristida<br />

triseta , Stipa bungeana , Pennisetum flaccidum , Elymus nutans <strong>and</strong> Orinus<br />

thoroldii . Shrubs such as Artemisia webbiana , Berberis spp. , Sophora<br />

moorcr<strong>of</strong>tiana , S. viciifolia , Lonicera spinosa , Leptodermis sauranja <strong>and</strong><br />

Ceratostigma griffithii are <strong>of</strong>ten mixed with grasses, or comprise distinct<br />

communities . On <strong>the</strong> upper slopes, Juniperus shrub communities are found.<br />

Since this central valley region is settled by farmers, most <strong>of</strong> <strong>the</strong> grassl<strong>and</strong>s<br />

have been subjected to heavy, continual grazing for centuries, if not thous<strong>and</strong>s<br />

<strong>of</strong> years, <strong>and</strong> are overgrazed <strong>and</strong> degraded (Meiners, 1991; Ryavec <strong>and</strong><br />

Vergin, 1998). Desertification , with moving s<strong>and</strong> dunes , is a serious problem<br />

in many areas in <strong>the</strong> Yarlung Tsangpo valley.<br />

Stock graze on stubble (Plate 8.6) <strong>and</strong> fodder crops like turnips (Plate 8.7)<br />

are grown for winter feed.<br />

Many plants in <strong>the</strong> alpine steppe have distinctive adaptations to <strong>the</strong> harsh<br />

environment (Huang, 1987). Some have shiny hairs, possibly to retain humidity<br />

<strong>and</strong> reflect heat into <strong>the</strong> interior. Some have large taproots for nutrient storage,<br />

<strong>and</strong> cushion plants create <strong>the</strong>ir own micro-environment by accumulating<br />

windblown soil <strong>and</strong> snow. In <strong>the</strong> alpine steppe, plant canopy cover ranges<br />

from 10 to 30 percent <strong>and</strong> productivity is <strong>of</strong>ten low (


316<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

precipitation (Miller <strong>and</strong> Schaller, 1996). The alpine steppe is important for<br />

pastoral production (Miller <strong>and</strong> Bedunah, 1993). Most is still in quite good<br />

condition , although <strong>the</strong>re are areas <strong>of</strong> overgrazing around settlements. Schaller<br />

(1998) estimated livestock density in <strong>the</strong> alpine steppe in nor<strong>the</strong>rn Tibet at<br />

8.7 animals/km 2 (comprising sheep , 5.71/km 2 ; goats , 2.60/km 2 ; yak , 0.36/km 2 ;<br />

<strong>and</strong> horses, 0.07/km 2 ).<br />

Alpine desert steppe<br />

The alpine desert steppe , which extends out <strong>of</strong> north Tibet into sou<strong>the</strong>rn<br />

Xinjiang , is a bleak <strong>and</strong> arid l<strong>and</strong>scape with large areas almost devoid <strong>of</strong><br />

vegetation (Schaller, 1998). It makes up about 6 percent <strong>of</strong> <strong>the</strong> total grassl<strong>and</strong><br />

<strong>of</strong> <strong>the</strong> Steppe . Vegetation is similar to <strong>the</strong> alpine steppe, but plant cover is less.<br />

The dwarf shrub Ceratoides compacta <strong>and</strong> <strong>the</strong> sedge Carex moorcr<strong>of</strong>tii are <strong>the</strong><br />

dominant plants. There is little livestock in this cold , high desert, <strong>and</strong> even wild<br />

ungulates are limited in number (Miller <strong>and</strong> Schaller, 1998).<br />

Temperate mountain meadow<br />

The temperate mountain meadow is mainly in western Sichuan, sou<strong>the</strong>astern<br />

Qinghai <strong>and</strong> east Tibet , <strong>and</strong> <strong>of</strong>ten found as meadows within forest between<br />

3 330 <strong>and</strong> 4 200 m. It makes up 4.6 percent <strong>of</strong> <strong>the</strong> area. Forests are primarily <strong>of</strong><br />

spruce (Picea spp.). Important grass genera include Festuca , Ptilagrostis , Poa ,<br />

Helictotrichon , Agrostis , Bromus , Elymus , Roegneria <strong>and</strong> Deyeuxia . Common<br />

forbs are <strong>of</strong> <strong>the</strong> genera Polygonum , Aconitum , Delphinium , Rheum <strong>and</strong><br />

Ligularia . Shrubs include Rhododendron , Philadelphus , Sorbus , Salix , Spiraea ,<br />

Prunus <strong>and</strong> Lonicera .<br />

Temperate desert<br />

The temperate desert found in <strong>the</strong> Qaidam Basin is a transition zone between<br />

<strong>the</strong> Mongolian desert <strong>and</strong> <strong>the</strong> alpine steppe <strong>of</strong> <strong>the</strong> Tibetan plateau. It is orogenically<br />

part <strong>of</strong> Tibet , but belongs floristically to <strong>the</strong> Mongolian province (Walter<br />

<strong>and</strong> Box, 1983). The Qaidam basin is 100–200 km wide <strong>and</strong> 600 km long, once<br />

filled by a sea, with mean elevation around 3 000 m, about 1 500 m higher than<br />

<strong>the</strong> Mongolian Plateau <strong>and</strong> about <strong>the</strong> same below <strong>the</strong> Tibetan plateau. Shrubs<br />

<strong>of</strong> <strong>the</strong> genera Calligonum , Haloxylon , Nitraria , Reaumuria , Salsola , Artemisia ,<br />

Tamarix , Ephedra , Kalidium <strong>and</strong> Sympegma dominate. There are large salt flats<br />

scattered across much <strong>of</strong> <strong>the</strong> Basin, <strong>and</strong> marshy areas support communities <strong>of</strong><br />

Phragmites .<br />

Classification <strong>of</strong> grassl<strong>and</strong> types <strong>and</strong> plant communities<br />

The rangel<strong>and</strong>s <strong>of</strong> <strong>the</strong> Tibetan Autonomous Region have been classified into<br />

12 different types (Mou, Deng <strong>and</strong> Gu, 1992; Deng, 1981; Gu, 2000). Table 8.2<br />

lists <strong>the</strong>se different types <strong>and</strong> <strong>the</strong> dominant groups within each type for <strong>the</strong><br />

Tibetan Autonomous Region.


The Tibetan Steppe 317<br />

TABLE 8.2<br />

Grassl<strong>and</strong> types <strong>and</strong> plant communities in <strong>the</strong> Tibetan Autonomous Region.<br />

Formation Community<br />

Alpine meadow Kobresia spp.<br />

Alpine shrub meadow Rhododendron – Kobresia<br />

Subalpine shrub meadow Sabina – Kobresia bellardii<br />

Picea – Kobresia bellardii<br />

Quercus semicarpifolia – Kobresia bellardii<br />

Salix – Spiraea – Berberis<br />

Mountain shrub steppe Sophora viciifolia – Pennisetum flaccidum<br />

Sophora viciifolia – Orinus thoroldii<br />

Mountain steppe Artemisia stracheyi – Kobresia bellardii<br />

Artemisia stracheyi – Stipa sp.<br />

Artemisia stracheyi – Orinus thoroldii<br />

Orinus thoroldii<br />

Achna<strong>the</strong>rum hookeri<br />

Stipa bungeana – Pennisetum flaccidum<br />

Alpine steppe Stipa purpurea<br />

Stipa purpurea – Kobresia sp.<br />

Stipa purpurea – Caragana versicolar<br />

Stipa purpurea – Festuca ovina<br />

Mountain desert steppe Stipa glareosa<br />

Stipa glareosa – Ceratoides latens<br />

Caragana versicolar – Stipa glareosa<br />

Caragana versicolar – Ceratoides latens<br />

Ajania fruticulosa – Stipa glareosa<br />

Mountain desert Ceratoides latens – Stipa sp.<br />

Ceratoides latens<br />

Alpine desert Carex moorcr<strong>of</strong>tii<br />

Ceratoides compacta – Carex moorcr<strong>of</strong>tii<br />

Ceratoides compacta<br />

Alpine cushion vegetation<br />

Lake basin <strong>and</strong> valley meadow grassl<strong>and</strong><br />

Woodl<strong>and</strong> meadow<br />

SOURCE: Adapted from Mou, Deng <strong>and</strong> Gu, 1992, <strong>and</strong> Gu, 2000.<br />

Vegetational attributes<br />

Vegetational attributes <strong>of</strong> <strong>the</strong> Tibetan Steppe vary greatly depending on <strong>the</strong><br />

particular type , topography, soils, precipitation <strong>and</strong> grazing history. Some <strong>of</strong> <strong>the</strong><br />

important vegetation characteristics that can help elucidate rangel<strong>and</strong> dynamics<br />

on <strong>the</strong> Steppe are botanical composition , productivity <strong>and</strong> nutritional content<br />

<strong>of</strong> rangel<strong>and</strong> herbage.<br />

BOTANICAL COMPOSITION<br />

Table 8.3 shows average botanical composition for alpine steppe <strong>and</strong> alpine<br />

desert in <strong>the</strong> Chang Tang Wildlife Reserve <strong>of</strong> nor<strong>the</strong>rn Tibet , where <strong>the</strong> average<br />

elevation is 4 800 m <strong>and</strong> annual precipitation about 250 mm. Much <strong>of</strong> <strong>the</strong><br />

grass is one species, Stipa purpurea . On mountain slopes in <strong>the</strong> alpine steppe,<br />

grasses decrease <strong>and</strong> forbs increase. In <strong>the</strong> alpine desert, sedges become more<br />

important, making up from 48 to almost 70 percent <strong>of</strong> vegetation ; <strong>the</strong> primary<br />

sedge is Carex moorcr<strong>of</strong>tii . Table 8.4 depicts average botanical composition


318<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

TABLE 8.3<br />

Botanical composition in <strong>the</strong> Chang Tang Wildlife Reserve, nor<strong>the</strong>rn Tibet (percentage basis).<br />

Alpine Steppe Alpine Desert Steppe<br />

plains plains mountain<br />

Grasses 61.9 58.8 29.8 42.7 17.5<br />

Sedges 15.2 28.5 22.8 48.5 69.8<br />

Forbs 17.5 10.6 35.2 6.2 9.3<br />

Shrubs 5.4 2.1 12.2 2.6 3.4<br />

SOURCE: Adapted from Miller <strong>and</strong> Schaller, 1997<br />

TABLE 8.4<br />

Botanical composition <strong>of</strong> rangel<strong>and</strong> in Hainan Prefecture, Qinghai (percentage basis).<br />

Alpine Meadow Temperate Meadow- Steppe<br />

Grasses 8.20 68.00<br />

Sedges 40.70 3.87<br />

Legumes 4.05 2.45<br />

Edible forbs 29.33 18.68<br />

Non-edible forbs 17.72 7.00<br />

Total<br />

SOURCE: Lang, Huang <strong>and</strong> Wang, 1997.<br />

100.00 100.00<br />

TABLE 8.5<br />

Annual dry matter production <strong>and</strong> carrying capacity for different grassl<strong>and</strong> types in Hainan<br />

Prefecture, Qinghai Province.<br />

Pasture type Dry matter (kg/ha) Carrying capacity (ha/SU/yr)<br />

Alpine meadow 934 0.78<br />

Temperate meadow- steppe 623 1.17<br />

Alpine steppe 594 1.23<br />

Temperate desert steppe 345 2.11<br />

Temperate desert 228 3.19<br />

Lowl<strong>and</strong> meadow<br />

NOTES: SU = Stock Unit.<br />

SOURCE: Lang, Huang <strong>and</strong> Wang, 1997.<br />

1 341 0.54<br />

in an alpine meadow <strong>and</strong> in temperate meadow-steppe in eastern Qinghai. In<br />

alpine meadow, grasses comprise only 8 percent <strong>of</strong> vegetation, while sedges<br />

comprise 40 percent, with <strong>the</strong> balance being forbs. In temperate meadowsteppe,<br />

a high proportion <strong>of</strong> vegetation (68 percent) is grasses.<br />

GRASSLAND PRODUCTIVITY<br />

The st<strong>and</strong>ing crop on <strong>the</strong> Steppe varies considerably. Alpine meadows are some<br />

<strong>of</strong> <strong>the</strong> most productive, as average annual dry matter (DM) production may<br />

reach 1 000 kg/ha. Productivity <strong>of</strong> desert pasture is low, averaging only 100–<br />

200 kg/DM/ha. Table 8.5 gives annual DM production <strong>and</strong> carrying capacity<br />

<strong>of</strong> different pasture types . Harris <strong>and</strong> Bedunah (2001), in Aksai County, Gansu<br />

Province, found average st<strong>and</strong>ing crop varied from 115 kg/DM/ha in desert<br />

shrub to 790 kg/DM/ha in desert sub-irrigated meadows (Table 8.6).<br />

Nutrient content <strong>of</strong> herbage<br />

On most <strong>of</strong> <strong>the</strong> steppe, natural forage is <strong>the</strong> only source <strong>of</strong> nutrients, except<br />

for small amounts <strong>of</strong> hay <strong>and</strong> purchased concentrates, so underst<strong>and</strong>ing


The Tibetan Steppe 319<br />

TABLE 8.6<br />

St<strong>and</strong>ing crop (kg/DM/ha) for different vegetation types in Aksai County, Gansu (3 100 to<br />

4 400 m).<br />

Vegetation type St<strong>and</strong>ing crop Dominant species<br />

Desert shrub 115 Sympegma regelii , Reaumuria soongarica<br />

Desert steppe 167 Oxytropis aciphylla, Leymus paboanus, Stipa glareosa<br />

Alpine desert shrub 141 Ceratoides compacta, Stipa glareosa<br />

Alpine steppe 245 Stipa purpurea, Poa spp., Festuca spp., Carex<br />

moorcr<strong>of</strong>tii<br />

Desert sub-irrigated meadows 790 Carex spp., Achna<strong>the</strong>rum splendens<br />

Meadows <strong>and</strong> s<strong>and</strong>y grassl<strong>and</strong>s 423 Carex spp., Leymus paboanus, Stipa spp., Kobresia spp.<br />

SOURCE: Harris <strong>and</strong> Bedunah, 2001.<br />

TABLE 8.7<br />

Crude Protein (CP) <strong>and</strong> Total Digestible Nutrients (TDN) <strong>of</strong> vegetation in Guoluo Prefecture,<br />

Qinghai Province (as percentage <strong>of</strong> dry matter).<br />

Plant Form Grasses Forbs Shrubs<br />

CP TDN CP TDN CP TDN<br />

Late June 16.12 79.48 16.60 85.43 19.14 83.11<br />

Late July 15.02 78.21 14.95 83.93 17.76 82.56<br />

Mid-September<br />

SOURCE: Sheehy, 2000.<br />

10.47 79.61 10.46 83.77 9.97 80.69<br />

<strong>the</strong> nutrient dynamics <strong>of</strong> forage in relation to animal needs is critical.<br />

Underst<strong>and</strong>ing temporal <strong>and</strong> spatial dynamics <strong>of</strong> forage is also important,<br />

with regard both to plant <strong>and</strong> animal needs <strong>and</strong> to dem<strong>and</strong> functions in <strong>the</strong><br />

livestock production system (Sheehy, 2000).<br />

Investigations in an alpine meadow environment in Guoluo Prefecture,<br />

Qinghai, provide surprising information about <strong>the</strong> nutrient content <strong>of</strong><br />

forages. Table 8.7 shows average crude protein (CP) content <strong>of</strong> three classes<br />

<strong>of</strong> forage <strong>and</strong> average percent total digestible nutrients (TDN) at three<br />

different times during <strong>the</strong> growing season. An important characteristic <strong>of</strong><br />

<strong>the</strong> forage is <strong>the</strong> high protein <strong>and</strong> nutrient content <strong>of</strong> all growth forms at<br />

<strong>the</strong> end <strong>of</strong> <strong>the</strong> growing season. The total amount <strong>of</strong> nutrients available to<br />

livestock going into <strong>the</strong> autumn <strong>and</strong> winter is much higher than found in<br />

many o<strong>the</strong>r grazing ecosystems . This implies that: (1) sufficient nutrients<br />

remain available on <strong>the</strong> Tibetan Steppe to maintain livestock through normal<br />

periods when forage is not growing; (2) even degraded vegetation has<br />

relatively high nutrients; <strong>and</strong> (3) capacity <strong>of</strong> grassl<strong>and</strong>s to support livestock<br />

needs to be evaluated in a nutrient context as well as a consumable biomass<br />

content (Sheehy, 2000).<br />

Grassl<strong>and</strong> degradation<br />

About a third <strong>of</strong> <strong>the</strong> pasture <strong>of</strong> <strong>the</strong> Steppe is now considered moderately to<br />

severely degraded, calling into question its long-term sustainability under<br />

current use (Sheehy, 2001). In Tibet , <strong>the</strong> percent <strong>of</strong> degraded pasture increased<br />

from 18 to 30 percent <strong>of</strong> total area between 1980 <strong>and</strong> 1990. Degradation is a<br />

growing concern in Naqu, where degraded l<strong>and</strong> makes up almost 40 percent


320<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>of</strong> <strong>the</strong> total degraded rangel<strong>and</strong> in <strong>the</strong> whole <strong>of</strong> <strong>the</strong> Tibetan Autonomous<br />

Region (Ciwang, 2000).<br />

Seriously degraded alpine meadow is <strong>of</strong>ten termed “black beach”, since <strong>the</strong><br />

Kobresia -dominated community has deteriorated to such a degree that most <strong>of</strong><br />

<strong>the</strong> sedges <strong>and</strong> associated grasses have disappeared, leaving annuals <strong>and</strong> bare<br />

soil. The dynamics <strong>of</strong> this degradation are not well understood; it is usually<br />

blamed on overgrazing <strong>and</strong> <strong>the</strong> burrowing <strong>of</strong> pikas, but <strong>the</strong>re is increasing<br />

evidence that climate change <strong>and</strong> desiccation may play a major role in vegetation<br />

changes (Miehe, 1988). Livestock may just accentuate natural ecological<br />

processes instead <strong>of</strong> being <strong>the</strong> underlying cause.<br />

THE TIBETAN PASTORAL PRODUCTION SYSTEM<br />

Tibetan pastoralism has evolved through long-term adaptation <strong>and</strong> persistence<br />

by herders (Ekvall, 1968; Goldstein, 1992; Goldstein <strong>and</strong> Beall, 1991; Miller,<br />

1999b). Pastoralists kept a mix <strong>of</strong> livestock in terms <strong>of</strong> species <strong>and</strong> class <strong>and</strong> used<br />

a mosaic <strong>of</strong> grazing sites, exploiting seasonal <strong>and</strong> annual variability. Herders<br />

bartered products (Plate 8.8) for grain <strong>and</strong> supplies; quite elaborate trade linkages<br />

(Plate 8.9) developed between pastoral <strong>and</strong> agricultural areas; traditional<br />

pastoralism was more than subsistence oriented. Tibetan pastoralism is distinct<br />

ecologically from that <strong>of</strong> o<strong>the</strong>r semi -arid regions, except Mongolia (Ekvall,<br />

1974), since it is separated from agricultural areas by temperature not aridity<br />

(Ekvall, 1968; Barfield, 1993; Goldstein <strong>and</strong> Beall, 1990; Miller, 1998a). The yak<br />

(Plate 8.10), which is superbly adapted to <strong>the</strong> cold Tibetan Steppe , also distinguishes<br />

Tibetan pastoralism (Cai <strong>and</strong> Wiener, 1995; Miller, 1997b).<br />

Plate 8.8<br />

Yaks transporting wool.<br />

DANIEL MILLER


DANIEL MILLER<br />

S.G. REYNOLDS<br />

The Tibetan Steppe 321<br />

Plate 8.9<br />

Yak pack train.<br />

Plate 8.10<br />

The Yak (Bos grunniens ).<br />

Historical <strong>and</strong> cultural aspects<br />

Pastoralists have probably been raising stock on <strong>the</strong> Tibetan Steppe for 4 000<br />

years (Barfield, 1989; Lattimore, 1940). As early as <strong>the</strong> Hsia dynasty (2205-1766<br />

BC), nomadic Qiang were making fine woven woollen material in <strong>the</strong> Kunlun<br />

Mountains. In <strong>the</strong> Shang dynasty (1766-1027 BC) nomads in eastern Tibet<br />

were renowned for <strong>the</strong>ir horses. The development <strong>of</strong> Tibetan pastoralism was


322<br />

Plate 8.11<br />

Kokonor camp with <strong>the</strong> distinctive black yak -hair tents.<br />

Plate 8.12<br />

Amdo woman <strong>and</strong> tent.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

shaped by nomads from Central Asia who brought sheep , goats <strong>and</strong> horses.<br />

The Tibetan black , yak -hair tent (Plates 8.11 <strong>and</strong> 8.12) is strikingly similar to<br />

<strong>the</strong> goat -hair tents <strong>of</strong> Afghanistan , Iran <strong>and</strong> Iraq (M<strong>and</strong>erscheid, 2001). The yak,<br />

domesticated on <strong>the</strong> Steppe (Miller et al., 1994), enabled nomads to exploit <strong>the</strong><br />

high grassl<strong>and</strong> .<br />

DANIEL MILLER<br />

DANIEL MILLER


DANIEL MILLER<br />

The Tibetan Steppe 323<br />

Most herders are Tibetan but <strong>the</strong>re are small groups <strong>of</strong> Mongols <strong>and</strong><br />

Kazakhs in Qinghai. Population density across much <strong>of</strong> <strong>the</strong> Steppe is less than<br />

two persons per square kilometre (Ryavec <strong>and</strong> Vergin, 1998). For a distance <strong>of</strong><br />

almost 3 000 km, Tibetan is spoken <strong>and</strong> has been a written language for about<br />

1 300 years. In recent decades, pastoralists across most <strong>of</strong> <strong>the</strong> Steppe have built<br />

houses <strong>and</strong> livestock shelters, on traditional winter -spring pastures where <strong>the</strong>y<br />

spend up to 6–7 months <strong>of</strong> <strong>the</strong> year. The vast majority <strong>of</strong> herders have been<br />

“settled” for some time, but graze <strong>the</strong>ir livestock in a transhumant manner<br />

(Miller, 1998c).<br />

Livestock management<br />

Pastoral practices are similar across <strong>the</strong> Steppe , although <strong>the</strong> composition <strong>and</strong><br />

size <strong>of</strong> herds differ. Herders keep milking (Plates 8.13 <strong>and</strong> 8.14) <strong>and</strong> dry herds<br />

<strong>of</strong> yak , yak-cattle crosses, sheep (Plate 8.15), goats <strong>and</strong> horses. The yak in many<br />

ways defines pastoralism across <strong>the</strong> plateau; <strong>the</strong>y are preferred for riding in<br />

rough country, at extreme altitudes <strong>and</strong> in snow (Ekvall, 1974); <strong>the</strong>ir dung is an<br />

important fuel. The Tibetan term for yaks, nor, is also translated as “wealth”.<br />

Sheep <strong>and</strong> goats are most important in <strong>the</strong> west where <strong>the</strong>y suit <strong>the</strong> vegetation<br />

better than do yaks; <strong>the</strong>re sheep <strong>and</strong> goats are milked; in <strong>the</strong> east, yaks supply<br />

all <strong>the</strong> nomads’ milk needs. Mutton is <strong>the</strong> preferred meat . Goats yield cashmere<br />

, meat <strong>and</strong> milk; Tibetan cashmere is among <strong>the</strong> best in <strong>the</strong> world. Sheep,<br />

goats <strong>and</strong> camels (Plate 8.16) are also used as pack animals but, with exp<strong>and</strong>ing<br />

road access , <strong>the</strong>ir role for transport has diminished. Horses are used primarily<br />

for riding, but are also used as pack animals. Mares are not milked <strong>and</strong> Tibetans<br />

Plate 8.13<br />

Milking yak .


324<br />

Plate 8.14<br />

Milk collection.<br />

Plate 8.15<br />

Sheep grazing on <strong>the</strong> high plateau.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

do not eat horsemeat. Livestock belong to individual families since <strong>the</strong> communes<br />

were disb<strong>and</strong>ed <strong>and</strong> <strong>the</strong> ‘household responsibility system’ introduced in<br />

<strong>the</strong> early 1980s. Each family is responsible for its livestock <strong>and</strong> <strong>the</strong> processing<br />

<strong>and</strong> marketing <strong>of</strong> livestock products.<br />

The proportion <strong>of</strong> species <strong>and</strong> <strong>the</strong> size <strong>of</strong> herds differs according to grassl<strong>and</strong><br />

factors <strong>and</strong> <strong>the</strong> suitability <strong>of</strong> <strong>the</strong> l<strong>and</strong>scape for different animals. Table 8.8<br />

DANIEL MILLER<br />

S.G. REYNOLDS


DANIEL MILLER<br />

The Tibetan Steppe 325<br />

Plate 8.16<br />

Mongols <strong>and</strong> pack camels .<br />

TABLE 8.8<br />

Average livestock numbers per family in various Counties <strong>and</strong> Townships.<br />

Administrative unit Yak Sheep Goats Horses<br />

Shuanghu County, Tibet 18 282 107 4<br />

Nyima County, Tibet 14 220 144 2<br />

Amdo County, Tibet 45 189 25 4<br />

Takring Township, Naqu County, Tibet 31 57 13 1.5<br />

Tagmo Township, Naqu County, Tibet 30 54 11 1.5<br />

Nyerong County, Tibet 27 46 8 1.4<br />

Aba County, Sichuan 70 34 0 6<br />

Hongyuan County, Sichuan 85 7 0 5<br />

Maqu County, Gansu 46 48 0 6<br />

Marma Twp, Maqu County, Gansu 51 71 0 6<br />

Nyima Township, Maqu County, Gansu 46 81 0 1.8<br />

Luqu County, Gansu<br />

SOURCES: Interviews <strong>and</strong> Government Records.<br />

33 65 0 2<br />

shows herd composition for 16 counties <strong>and</strong> townships across a distance <strong>of</strong><br />

1 500 km from west to east. For example, in Shuanghu County <strong>of</strong> <strong>the</strong> Tibetan<br />

Autonomous Region, yaks make up only 4 percent <strong>of</strong> livestock; whereas in<br />

Hongyuan County <strong>of</strong> Sichuan, about 1 200 km to <strong>the</strong> east, yaks comprise 85<br />

percent. Shuanghu is drier <strong>and</strong> <strong>the</strong> alpine steppe vegetation suits sheep <strong>and</strong><br />

goats . Hongyuan is wetter <strong>and</strong> vegetation is dominated by alpine meadow .<br />

Herd compositions within a geographic area can also differ with <strong>the</strong> skills,<br />

preferences <strong>and</strong> availability <strong>of</strong> labour. Luqu County, in southwestern Gansu, is<br />

close to Aba <strong>and</strong> Hongyuan Counties in Sichuan <strong>and</strong> pastures are comparable,<br />

but in Luqu <strong>the</strong> government encouraged pastoralists to raise sheep, hence it has<br />

a much higher percentage <strong>of</strong> sheep than neighbouring counties.


326<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

The number <strong>of</strong> animals that herder households raise also varies considerably<br />

across <strong>the</strong> Steppe . In Shuanghu County in Tibet , an average-income<br />

family <strong>of</strong> five keeps about 280 sheep , 100 goats , 18 yaks <strong>and</strong> 4 horses. In Naqu<br />

County a family <strong>of</strong> five would have 60–80 sheep <strong>and</strong> goats, 30–35 yaks <strong>and</strong><br />

two horses. A rich family in Naqu may have 200–300 sheep <strong>and</strong> goats <strong>and</strong> 100<br />

yaks. In Hongyuan County in northwest Sichuan a typical family would have<br />

80–100 yaks, five horses <strong>and</strong> no, or a few, sheep. Of <strong>the</strong> 80–100 yaks a family<br />

in Hongyuan has, only 30 to 40 are milking females. In Phala in northwest<br />

Shigatse Prefecture <strong>of</strong> Tibet, <strong>the</strong> richest herding family with six persons in <strong>the</strong><br />

household had 286 sheep, 250 goats, 77 yaks <strong>and</strong> 8 horses.<br />

Herd structure illustrates pastoralists’ expertise in animal husb<strong>and</strong>ry. In<br />

Phala, almost 60 percent <strong>of</strong> <strong>the</strong> adult sheep <strong>and</strong> goats are females. Adult males,<br />

at 30 percent <strong>of</strong> <strong>the</strong> flock, may seem high, but a significant portion <strong>of</strong> herders’<br />

income is from fibre from adult males <strong>and</strong> adult males for meat . In pastoral<br />

areas, livestock graze year-round. Some hay is cut for weak animals <strong>and</strong> horses<br />

in winter <strong>and</strong> spring . In recent years, however, some herders are sowing pastures<br />

for winter-spring grazing or hay.<br />

Herds on <strong>the</strong> move<br />

Traditional extensive grazing management was adapted to local conditions <strong>and</strong><br />

stock were regularly moved between pastures to maintain grassl<strong>and</strong> condition<br />

<strong>and</strong> animal productivity . Grazing l<strong>and</strong>s were parcelled into seasonal pastures<br />

<strong>and</strong> grazed according to managerial <strong>and</strong> production objectives. Pastoralists’<br />

movements were well prescribed by complex social organizations <strong>and</strong> were<br />

highly regulated. Mobility is still vital for most herders (Plate 8.17), although<br />

Plate 8.17<br />

Herders moving on <strong>the</strong> high plain.<br />

DANIEL MILLER


The Tibetan Steppe 327<br />

with escalating settlement, livestock mobility is being curtailed. The system<br />

was designed around <strong>the</strong> seasonal movement <strong>of</strong> livestock; herds rotated<br />

between pastures to use forage in summer <strong>and</strong> reserve grass for autumn <strong>and</strong><br />

early winter to prepare animals for <strong>the</strong> long winter. The survival today <strong>of</strong><br />

numerous, prosperous groups <strong>of</strong> Tibetan pastoralists bears witness to <strong>the</strong>ir<br />

extraordinary indigenous knowledge, resourcefulness <strong>and</strong> animal husb<strong>and</strong>ry<br />

skills. Much <strong>of</strong> <strong>the</strong> grazing ecosystem is intact <strong>and</strong> sustains a unique flora <strong>and</strong><br />

wild fauna, despite centuries <strong>of</strong> grazing, indicating its remarkable resilience.<br />

Now, however, traditional, proven, yet <strong>of</strong>ten quite sophisticated livestock <strong>and</strong><br />

grazing management systems are being altered as modern development sweeps<br />

across <strong>the</strong> Tibetan steppes.<br />

L<strong>and</strong> tenure<br />

Before 1949 <strong>the</strong>re was a feudal “estate” system with l<strong>and</strong> controlled by<br />

religious <strong>and</strong> aristocratic elites (Goldstein <strong>and</strong> Beall, 1990:54). Wealthy,<br />

powerful monasteries controlled huge fiefdoms with numerous pastoral estates<br />

<strong>and</strong> thous<strong>and</strong>s <strong>of</strong> subjects. Herders were bound to an estate <strong>and</strong> not free to<br />

leave it, but owned <strong>the</strong>ir animals <strong>and</strong> managed <strong>the</strong>m as <strong>the</strong>y wished; <strong>the</strong>y paid<br />

taxes <strong>and</strong> provided corvée labour to <strong>the</strong>ir lord.<br />

Traditionally, pastoral estates were divided into numerous pastures, with<br />

borders recorded in a register book (Goldstein <strong>and</strong> Beall, 1990:69). Households<br />

received pastures according to <strong>the</strong> number <strong>of</strong> livestock owned, including<br />

multiple pastures for use at different seasons. Estate <strong>of</strong>ficials enforced pasture<br />

boundaries. Herding households were independent <strong>of</strong> each o<strong>the</strong>r regarding<br />

management <strong>of</strong> <strong>the</strong>ir pastures <strong>and</strong> animals <strong>and</strong> <strong>the</strong>re was no “common” pasture<br />

open to all. On pastoral estates <strong>the</strong> system balanced grassl<strong>and</strong> resources <strong>and</strong><br />

livestock by reallocating pastures between families according to a census conducted<br />

every three years. Herders whose stock had increased were allocated<br />

more pasture <strong>and</strong> those whose herds had declined lost l<strong>and</strong>, <strong>the</strong> aim being to<br />

maintain a specified number <strong>of</strong> livestock on each pasture (Goldstein <strong>and</strong> Beall,<br />

1990:70).<br />

In many areas herders were organized as a confederacy <strong>of</strong> separate kinbased<br />

groups which were <strong>of</strong> different sizes <strong>and</strong> each had customary rights to<br />

l<strong>and</strong> <strong>of</strong> varying extent , used at different seasons. Groups were divided into<br />

‘encampments’ <strong>of</strong> five to ten households <strong>and</strong> each encampment had rights to a<br />

set <strong>of</strong> seasonal grazing areas within <strong>the</strong> wider ‘tribal’ territory. Natural features<br />

like ridges <strong>and</strong> streams (Levine, 1998) marked boundaries. Herders had heritable<br />

grazing rights within a group territory (Clarke, 1998).<br />

Traditionally, in areas outside <strong>the</strong> control <strong>of</strong> large pastoral estates, grazing<br />

rights were very insecure <strong>and</strong> depended on force (Levine, 1998). While <strong>the</strong><br />

rights <strong>of</strong> tribes to certain tracts <strong>of</strong> l<strong>and</strong> were fixed – unless <strong>and</strong> until o<strong>the</strong>r tribes<br />

took <strong>the</strong>m by force – rights <strong>of</strong> encampments were more fluid. The camping<br />

sites <strong>and</strong> grazing grounds <strong>of</strong> <strong>the</strong> various groups could be changed from one


328<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

part <strong>of</strong> <strong>the</strong> tribal territory to ano<strong>the</strong>r at <strong>the</strong> discretion <strong>of</strong> tribal leaders <strong>and</strong> in<br />

response to changing needs <strong>of</strong> <strong>the</strong> encampment (Levine, 1998). In <strong>the</strong> Golog<br />

region <strong>of</strong> <strong>the</strong> nor<strong>the</strong>astern Steppe winter camps had a sense <strong>of</strong> ‘ownership’ by<br />

specific encampment groups. Households in <strong>the</strong> encampment had ‘individual<br />

<strong>and</strong> exclusive rights over certain hayfields’ near winter sites (Ekvall, 1954).<br />

Since 1949 <strong>the</strong> state has induced pr<strong>of</strong>ound changes in l<strong>and</strong> tenure <strong>and</strong><br />

social organization <strong>of</strong> pastoral communities . In <strong>the</strong> 1950s, when l<strong>and</strong> reform<br />

was being implemented throughout China , pasture was nationalized <strong>and</strong><br />

aristocratic <strong>and</strong> monastic lords lost <strong>the</strong>ir estates. State ownership <strong>of</strong> grassl<strong>and</strong><br />

was not incorporated into law until 1982 (Ho, 2000). When communes were<br />

established in <strong>the</strong> late 1950s <strong>and</strong> 1960s, ownership was vested in <strong>the</strong> production<br />

teams, which came to regard <strong>the</strong> grassl<strong>and</strong> as collective property. What<br />

emerged was a de facto situation <strong>of</strong> state <strong>and</strong> collectively owned pasture. All<br />

livestock was <strong>the</strong> property <strong>of</strong> <strong>the</strong> communes. Herders were transformed to<br />

holders <strong>of</strong> a share in <strong>the</strong> communes’ livestock. In <strong>the</strong> commune era, however,<br />

mobile pastoralism continued <strong>and</strong> no attempt was made to reduce <strong>the</strong> geographic<br />

scope <strong>of</strong> livestock production.<br />

Decollectivization <strong>of</strong> <strong>the</strong> agricultural sector in China was authorized in<br />

1978. Institutional rural reforms began in agricultural areas <strong>of</strong> eastern China,<br />

where communes <strong>and</strong> state farms were dismantled <strong>and</strong> <strong>the</strong>ir l<strong>and</strong>s redistributed<br />

under <strong>the</strong> family-based Household Contract Responsibility System<br />

(Ho, 1996). In agricultural areas farmers could lease l<strong>and</strong> <strong>and</strong> l<strong>and</strong> use rights<br />

could be subcontracted or inherited. The contract system became <strong>the</strong> orthodox<br />

form <strong>of</strong> l<strong>and</strong> tenure for agriculture <strong>and</strong> was applied to grassl<strong>and</strong>s with<br />

<strong>the</strong> promulgation <strong>of</strong> <strong>the</strong> Grassl<strong>and</strong> Law in 1985 (Ho, 2000), which states that<br />

<strong>the</strong> user right <strong>of</strong> state or collective pasture may be leased to households for a<br />

‘long term’, although in practice lease periods extend to 30 years <strong>and</strong> in special<br />

circumstances to 50 years. In much <strong>of</strong> <strong>the</strong> pastoral area <strong>of</strong> Qinghai, southwest<br />

Gansu <strong>and</strong> northwestern Sichuan, many herders have settled <strong>and</strong> have fenced<br />

pastures contracted to <strong>the</strong>m. There is evidence that <strong>the</strong> allocation <strong>of</strong> rangel<strong>and</strong><br />

is at <strong>the</strong> community <strong>and</strong> small group level, much as in <strong>the</strong> pre-commune era<br />

(Goldstein <strong>and</strong> Beall, 1991).<br />

Transformation <strong>of</strong> <strong>the</strong> traditional pastoral production system<br />

The pr<strong>of</strong>ound changes <strong>of</strong> recent decades are transforming traditional l<strong>and</strong><br />

use, altering pasture conditions <strong>and</strong> disrupting <strong>the</strong> lives <strong>of</strong> pastoralists. Often<br />

<strong>the</strong>se political, social, economic <strong>and</strong> ecological transformations have altered<br />

previously stable relationships between pastoralists <strong>and</strong> <strong>the</strong> grassl<strong>and</strong>s.<br />

In <strong>the</strong> mid-1980s winter grazing l<strong>and</strong>s were allocated to households <strong>and</strong><br />

winter pastures were fenced (Plate 8.18); this began in <strong>the</strong> Qinghai Lake region,<br />

but quickly spread to herding areas in Gansu <strong>and</strong> Sichuan. Exclusive usufruct<br />

rights to specific grazing l<strong>and</strong>s for herding households, valid in most cases for<br />

30 years, have now been established. These rights can be inherited, but not


DANIEL MILLER<br />

The Tibetan Steppe 329<br />

Plate 8.18<br />

Fenced rangel<strong>and</strong>.<br />

bought or sold. There is no mechanism yet in place for <strong>the</strong> readjustment <strong>of</strong><br />

grazing l<strong>and</strong> to individual families when livestock numbers fluctuate.<br />

In <strong>the</strong> Tibetan Autonomous Region, however, grassl<strong>and</strong> is not yet allocated<br />

to households, but is being allocated to groups <strong>of</strong> herders. One explanation for<br />

<strong>the</strong> difference in <strong>the</strong> privatization process in Tibet is that <strong>the</strong> grassl<strong>and</strong>s are not<br />

as productive <strong>and</strong> <strong>the</strong> expense involved in fencing individual properties would<br />

be prohibitive. A new development is that summer grazing l<strong>and</strong>s are also being<br />

privatized <strong>and</strong> fenced, except again in <strong>the</strong> Tibetan Autonomous Region where<br />

<strong>the</strong>y are being allocated to groups instead <strong>of</strong> households. To complement <strong>the</strong><br />

privatization a ‘Four-Way Programme’ is being implemented <strong>and</strong> consists <strong>of</strong>:<br />

• fencing about 20 to 30 ha <strong>of</strong> productive winter pasture , reserved from grazing<br />

in summer <strong>and</strong> autumn , to provide grazing during <strong>the</strong> late winter <strong>and</strong>/or<br />

spring ;<br />

• construction <strong>of</strong> shelters for livestock;<br />

• construction <strong>of</strong> homes for nomads in <strong>the</strong>ir winter pasture site; <strong>and</strong><br />

• planting small (0.5 to 2 ha) plots <strong>of</strong> oats for hay in <strong>the</strong> corrals around winter<br />

settlements (Plate 8.19).<br />

In some areas, additional interventions include:<br />

• fencing about 20 ha <strong>of</strong> degraded l<strong>and</strong> which is rehabilitated by reseeding ;<br />

<strong>and</strong><br />

• fencing <strong>of</strong> an additional 20 ha which is <strong>the</strong>n improved with fertilizer , chemicals<br />

<strong>and</strong> improved management .<br />

These activities are being undertaken on a large scale, with substantial<br />

government <strong>and</strong> donor investment, in almost all pastoral areas <strong>of</strong> Qinghai,


330<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 8.19<br />

Oats for winter feed (as hay ) being grown in a sheep pen, Qinghai, China .<br />

Gansu <strong>and</strong> Sichuan. However, even in Tibet , great attention is being given to<br />

“scientific” animal husb<strong>and</strong>ry <strong>and</strong> settling <strong>of</strong> herders.<br />

The heavy livestock losses experienced on <strong>the</strong> plateau in recent years has<br />

convinced many authorities that transhumant pastoralism needs to be restructured.<br />

Programmes to settle herders, privatize <strong>and</strong> fence pasture <strong>and</strong> develop<br />

fodder for winter are seen as ways to prevent losses in severe winters <strong>and</strong> control<br />

what is perceived as widespread pasture degradation . While some <strong>of</strong> <strong>the</strong>se<br />

interventions have merit, such as <strong>the</strong> growing <strong>of</strong> annual forage for hay , <strong>the</strong><br />

long-term ecological implications <strong>of</strong> privatizing pasture <strong>and</strong> reducing <strong>the</strong> spatial<br />

movement <strong>of</strong> herds have received little analysis (Miller, 2000). The socioeconomic<br />

<strong>and</strong> l<strong>and</strong>-tenure ramifications <strong>of</strong> herders being settled on defined<br />

properties have also not been examined.<br />

Foggin <strong>and</strong> Smith (2000) concluded that summer -autumn pastures may be<br />

unintentionally degraded fur<strong>the</strong>r as artificially high winter populations <strong>of</strong> stock<br />

are forced to graze on summer-autumn pasture <strong>of</strong> reduced size. Official livestock-management<br />

views technology as having <strong>the</strong> ability to overcome resource<br />

limitations but fails to consider that a greater proportion <strong>of</strong> winter-spring<br />

pasture means a lesser proportion <strong>of</strong> summer-autumn pasture <strong>and</strong> overgrazing<br />

becomes increasingly likely as more livestock graze on a continuously decreasing<br />

area during a short growing season (Foggin <strong>and</strong> Smith, 2000). Considerable<br />

investment may be misdirected or inappropriately divided between winterspring<br />

<strong>and</strong> summer-autumn zones <strong>and</strong> associated projects. For example, in Dari<br />

County <strong>of</strong> Qinghai, grassl<strong>and</strong> condition has continued to deteriorate despite a<br />

decrease in livestock <strong>and</strong> considerable investment in “construction” projects.<br />

J.M. SUTTIE


The Tibetan Steppe 331<br />

The popular government development paradigm in <strong>the</strong> Tibetan Steppe , adopts<br />

a livestock ra<strong>the</strong>r than a grassl<strong>and</strong> management perspective (Foggin <strong>and</strong> Smith,<br />

2000); stock numbers are <strong>of</strong> primary importance <strong>and</strong> attention to vegetation secondary.<br />

As <strong>the</strong> human pastoral population increased <strong>the</strong>re was a strong tendency<br />

to rely more heavily on winter -spring grazing , <strong>the</strong> condition <strong>of</strong> which decreased<br />

as human population density – <strong>and</strong> livestock density – increased. Since winterspring<br />

is when most livestock die from poor nutrition , an increase in <strong>the</strong> area <strong>of</strong><br />

winter-spring grazing l<strong>and</strong> or <strong>the</strong> supply <strong>of</strong> feed in winter-spring is a rational<br />

response to ensure that more stock survive. This focus on maximizing livestock<br />

production detracts from promoting sustainable grassl<strong>and</strong> management.<br />

Snowstorms <strong>and</strong> pastoral system dynamics<br />

Across much <strong>of</strong> <strong>the</strong> Tibetan Steppe , where <strong>the</strong>re is sufficient rainfall <strong>and</strong> <strong>the</strong><br />

pastoral system appears to operate in an equilibrium manner with regards to<br />

forage production, <strong>the</strong> continental climate <strong>and</strong> periodic wea<strong>the</strong>r perturbations<br />

in <strong>the</strong> form <strong>of</strong> sudden <strong>and</strong> brutal snowstorms add to <strong>the</strong> complexity <strong>and</strong><br />

dynamic nature <strong>of</strong> <strong>the</strong> ecosystem (Goldstein, Beall <strong>and</strong> Cincotta, 1990; Miller,<br />

2000). Snowstorms are a fundamental component <strong>of</strong> <strong>the</strong> Tibetan Steppe <strong>and</strong><br />

probably serve as an important regulatory mechanism in <strong>the</strong> pastoral system.<br />

Serious losses occur as a result <strong>of</strong> heavy snowfalls <strong>and</strong> severe cold wea<strong>the</strong>r<br />

(Cincotta et al., 1991; Clarke, 1998; Goldstein, Beall <strong>and</strong> Cincotta, 1990;<br />

Miller, 1998a; Schaller, 1998; Prejevalsky, 1876, in Schaller, 1998). From 1955<br />

to 1990, six severe winters with heavy snow were reported, resulting in 20 to<br />

30 percent losses in livestock each time. Schaller (1998) reported an unusually<br />

heavy snowfall <strong>of</strong> 30 cm in October 1985, followed by temperatures that<br />

dropped to -40°C, in southwestern Qinghai that resulted in large numbers <strong>of</strong><br />

livestock <strong>and</strong> wildlife dying. Goldstein <strong>and</strong> Beall (1990) found that all lambs<br />

<strong>and</strong> kids died in <strong>the</strong> spring <strong>of</strong> 1988 in <strong>the</strong> Phala area <strong>of</strong> Tibet . The winter <strong>of</strong><br />

1989–1990 in Tibet resulted in <strong>the</strong> loss <strong>of</strong> 20 percent <strong>of</strong> livestock in affected<br />

areas. The winter <strong>of</strong> 1995–1996 was severe in many parts <strong>of</strong> <strong>the</strong> plateau, with 33<br />

percent <strong>of</strong> livestock lost in Yushu Prefecture <strong>of</strong> Qinghai. Losses in summer are<br />

not uncommon; Goldstein <strong>and</strong> Beall (1990) found that after five days <strong>of</strong> snow<br />

in <strong>the</strong> summer <strong>of</strong> 1986, a herding area lost 30 percent <strong>of</strong> its stock. Ekvall (1974)<br />

mentions <strong>the</strong> effect <strong>of</strong> hail on Tibetan herds. Much <strong>of</strong> <strong>the</strong> Steppe probably<br />

functions as a non-equilibrium system with stock numbers frequently checked<br />

by climatic factors, such as snowstorms, ra<strong>the</strong>r than by increasing pressure <strong>of</strong><br />

livestock on <strong>the</strong> pastures (Miller, 1997a).<br />

Ano<strong>the</strong>r severe winter was in 1997–98, when usually early <strong>and</strong> severe<br />

snowfalls in September was followed by cold wea<strong>the</strong>r, preventing <strong>the</strong> snow<br />

from melting. More snow followed <strong>and</strong> by November, <strong>the</strong> pasture was buried<br />

under deep snow. By April 1998, more than three million head had been lost.<br />

Thous<strong>and</strong>s <strong>of</strong> families, many <strong>of</strong> which had lost all <strong>the</strong>ir livestock, suddenly<br />

faced poverty. In Naqu prefecture, 20 percent <strong>of</strong> <strong>the</strong> pastoral population <strong>of</strong>


332<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

340 000 lived in poverty prior to <strong>the</strong> severe 1997–98 winter; in <strong>the</strong> following<br />

year <strong>the</strong> percentage had increased to 40 percent.<br />

Officials label heavy snowfalls <strong>and</strong> severe winters as “disasters”; however,<br />

pastoralists have been herding on <strong>the</strong> Tibetan Steppe for centuries <strong>and</strong> have<br />

dealt with snowstorms <strong>and</strong> cold wea<strong>the</strong>r – those <strong>of</strong> <strong>the</strong> winter <strong>of</strong> 1997–1998<br />

are natural events <strong>of</strong> <strong>the</strong> pastoral system. Herding has always been a highrisk<br />

enterprise; pastoralists adopt strategies that minimize risk <strong>and</strong> make best<br />

use <strong>of</strong> <strong>the</strong> resources (Goldstein <strong>and</strong> Beall, 1990; Miller, 1998a). In contrast<br />

to severe droughts in semi -arid pastoral areas, heavy snowfalls do not affect<br />

<strong>the</strong> vegetation negatively. Unlike droughts, where <strong>the</strong> effects on livestock are<br />

more prolonged, severe snowstorms are sudden events, with a very short or no<br />

“warning” period, <strong>and</strong> <strong>of</strong>ten causing livestock deaths in days or weeks.<br />

DILEMMA ON THE TIBETAN STEPPE<br />

With attempts to transform pastoral livestock production towards a market<br />

economy <strong>the</strong> goal has been to increase <strong>of</strong>f-take. This has been promoted<br />

through privatization <strong>of</strong> herds <strong>and</strong> l<strong>and</strong>, settling herders, introduction <strong>of</strong> less<br />

mobile , intensive grazing management <strong>and</strong> <strong>of</strong> rainfed forage. Many <strong>of</strong> <strong>the</strong>se<br />

interventions have been responses to political or economic objectives <strong>and</strong> while<br />

<strong>the</strong>y have improved <strong>the</strong> delivery <strong>of</strong> social services, in many instances, <strong>the</strong>y conflict<br />

with <strong>the</strong> goal <strong>of</strong> maintaining grassl<strong>and</strong> health <strong>and</strong> stability since <strong>the</strong>y limit<br />

<strong>the</strong> mobile nature <strong>of</strong> pastoralism (Miller, 1999a; Goldstein <strong>and</strong> Beall, 1989; Wu,<br />

1997a). Movements between seasonal pastures are being reduced or eliminated;<br />

herd composition is being restructured along commercial lines; herders are<br />

being compelled to become livestock farmers. The environment <strong>and</strong> <strong>the</strong> pastoral<br />

cultures are under threat where mobility has been eliminated or substantially<br />

reduced (Humphrey <strong>and</strong> Sneath, 1999; Sneath <strong>and</strong> Humphrey, 1996).<br />

A disproportionate amount <strong>of</strong> research is oriented to maximizing livestock<br />

productivity , ra<strong>the</strong>r than underst<strong>and</strong>ing how livestock fit into <strong>the</strong> ecological<br />

system in a socially sustainable way. There is also a problem regarding <strong>the</strong><br />

effective privatization <strong>of</strong> pastoral l<strong>and</strong> tenure . Transaction costs associated with<br />

<strong>the</strong> policy are high, including high private costs relative to <strong>the</strong> benefits <strong>and</strong> high<br />

public costs <strong>of</strong> monitoring <strong>and</strong> enforcing contractual provisions related to pasture<br />

management (<strong>World</strong> Bank, 2001). As Banks (1999) has outlined, privatization<br />

policy was based on <strong>the</strong> assumption that, through <strong>the</strong> better definition <strong>of</strong><br />

property rights <strong>and</strong> introduction <strong>of</strong> individual l<strong>and</strong> tenure, security would be<br />

improved <strong>and</strong> this would prevent a “tragedy <strong>of</strong> <strong>the</strong> commons” scenario which<br />

in turn would give herders <strong>the</strong> incentive to manage <strong>the</strong>ir pasture better <strong>and</strong><br />

invest in improvement . It was asserted that private ownership, by combining<br />

interest in both l<strong>and</strong> <strong>and</strong> livestock, would prevent overgrazing (Banks, 1997).<br />

This model has been widely rejected by most pastoral specialists, who have<br />

found it a very poor guide to underst<strong>and</strong>ing transhumant pastoralism <strong>and</strong> planning<br />

development <strong>of</strong> pastoral areas.


The Tibetan Steppe 333<br />

Privatization <strong>of</strong> l<strong>and</strong> in semi -arid pastoral areas <strong>of</strong>ten leads to lower levels <strong>of</strong><br />

production, decreasing numbers <strong>of</strong> people supported on equivalent l<strong>and</strong> <strong>and</strong> in<br />

some cases unsustainable or even destructive use <strong>of</strong> natural resources (Galaty<br />

et al., 1994). Individualization <strong>of</strong> tenure leads to loss <strong>of</strong> flexibility in grazing<br />

management <strong>and</strong> consequently, a means to manage environmental risk . In<br />

Inner Mongolia (Sneath, 1998) found that that <strong>the</strong> highest levels <strong>of</strong> grassl<strong>and</strong><br />

degradation were in areas with <strong>the</strong> lowest stock mobility ; mobility indices<br />

were a better guide to degradation than densities <strong>of</strong> livestock. Williams<br />

(1996a, b) noted that grassl<strong>and</strong> enclosures in Inner Mongolia compound<br />

grazing problems by intensifying stocking rates on highly vulnerable l<strong>and</strong>,<br />

exacerbating wind <strong>and</strong> soil erosion across large areas only to protect small<br />

isolated fields dedicated to poorly financed fodder cultivation .<br />

The fact that many prosperous pastoral groups still populate <strong>the</strong> Tibetan<br />

plateau is evidence <strong>of</strong> <strong>the</strong>ir extensive knowledge about grassl<strong>and</strong>s <strong>and</strong><br />

livestock. Multi-species grazing maximizes <strong>the</strong> use <strong>of</strong> forage but requires<br />

complex management . Multiple species minimizes <strong>the</strong> risk <strong>of</strong> total loss from<br />

disease or winter storms. As McIntire (1993) found for Africa, <strong>the</strong> central<br />

characteristics <strong>of</strong> traditional pastoralism – low productivity , high variability<br />

in forage <strong>and</strong> livestock production, low production density <strong>and</strong> high market<br />

transaction costs – mean that conventional markets in l<strong>and</strong>, labour <strong>and</strong><br />

capital have not become well developed. Tibetans, never<strong>the</strong>less, <strong>of</strong>ten develop<br />

quite sophisticated arrangements for meeting <strong>the</strong>ir labour requirements,<br />

for managing grassl<strong>and</strong> without exclusive private property rights <strong>and</strong> for<br />

allocating <strong>the</strong>ir livestock as capital in <strong>the</strong> absence <strong>of</strong> financial markets.<br />

There is increasing evidence that many <strong>of</strong> current policies for Tibetan pastoral<br />

areas may be based on flawed information about herd sizes <strong>and</strong> incorrect<br />

assumptions about <strong>the</strong> destructiveness <strong>of</strong> traditional pastoral systems .<br />

Political <strong>and</strong> donor-driven pressure to develop <strong>the</strong> hinterl<strong>and</strong> <strong>of</strong> Western<br />

China <strong>and</strong> to alleviate poverty among pastoralists also means that many<br />

<strong>of</strong> <strong>the</strong> underlying ecological <strong>and</strong> socio-economic issues are not adequately<br />

addressed before development programmes are undertaken. As Goldstein,<br />

Beall <strong>and</strong> Cincotta (1990) pointed out, it would be tragic if <strong>the</strong> herding way<br />

<strong>of</strong> life was gradually undermined <strong>and</strong> destroyed by modern notions <strong>of</strong> conservation<br />

<strong>and</strong> development based on faulty evidence, negative stereotypes<br />

<strong>and</strong> untested assumptions.<br />

Mobility<br />

Throughout <strong>the</strong> Steppe , pastoralists who, until a few decades ago, lived in<br />

tents (Plate 8.20) year-round have built houses for <strong>the</strong>mselves <strong>and</strong> shelters<br />

for <strong>the</strong>ir livestock <strong>and</strong> have fenced private winter pastures (Plate 8.18).<br />

Does a ‘home on <strong>the</strong> range’, however, have to signify <strong>the</strong> demise <strong>of</strong> mobile<br />

pastoralism? Or, is <strong>the</strong>re still potential to engage in mobile herding <strong>and</strong><br />

maintain some <strong>of</strong> <strong>the</strong> best aspects <strong>of</strong> traditional management ?


334<br />

Plate 8.20<br />

Longri summer camp.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

The emphasis on settling herders in Western-style, intensive ranching<br />

type <strong>of</strong> operations <strong>and</strong> a conservative approach to stocking <strong>and</strong> fencing has<br />

led to misguided policies <strong>and</strong> projects throughout <strong>the</strong> world. The mobility<br />

paradigm does not argue for <strong>the</strong> ‘good, old days’, nor try to maintain<br />

pastoralists in <strong>the</strong>ir current conditions (Niamir-Fuller, 1999); it seeks to put<br />

in place proper policies, legal frameworks <strong>and</strong> support systems to enable<br />

pastoralism to evolve towards an economically, socially <strong>and</strong> environmentally<br />

sustainable livelihood. It presents a framework for analysing pastoral issues<br />

related to <strong>the</strong>ir resources , <strong>the</strong> herders, <strong>the</strong>ir adaptive strategies <strong>and</strong> <strong>the</strong>ir<br />

common property regimes <strong>and</strong> not only gives mobile livestock production<br />

systems a raison d’être, but tries to redress <strong>the</strong> imbalance caused by<br />

emphasis on intensive production (Niamir-Fuller, 1999).<br />

The mobility paradigm would advocate that livestock mobility is an<br />

essential ingredient for sustainable development in Tibetan grassl<strong>and</strong>s<br />

<strong>and</strong> that houses, shelters <strong>and</strong> privately fenced enclosures for hay <strong>and</strong><br />

winter -spring grazing could be compatible so long as livestock are allowed<br />

opportunistic mobility. It would acknowledge <strong>the</strong> importance <strong>of</strong> “key<br />

sites”, or high-value grazing patches <strong>and</strong> <strong>the</strong> need for access to <strong>the</strong>m. It<br />

would make <strong>the</strong> case for pooling <strong>of</strong> household livestock into larger herds<br />

to be herded on shared pastures <strong>and</strong> seek to revitalize common property<br />

regime institutions. The mobility paradigm would seek ways to manage<br />

uncertainty <strong>and</strong> risk better through risk minimizing <strong>and</strong> risk buffering.<br />

There would also have to be a commitment to decentralization <strong>and</strong> real<br />

participatory processes.<br />

DANIEL MILLER


The Tibetan Steppe 335<br />

CONCLUSION<br />

The economic viability <strong>and</strong> environmental sustainability <strong>of</strong> pastoral production<br />

on <strong>the</strong> Tibetan Steppe is under considerable scrutiny. The Tibetan Steppe has<br />

received little research attention from grassl<strong>and</strong> ecologists <strong>and</strong> specialists in<br />

pastoralism. Lack <strong>of</strong> information limits proper management <strong>and</strong> sustainable<br />

grassl<strong>and</strong> development . Pastoral ecosystem dynamics are poorly understood<br />

<strong>and</strong> data on ecological processes taking place are limited. Many questions<br />

concerning how vegetation functions <strong>and</strong> <strong>the</strong> effect <strong>of</strong> grazing on <strong>the</strong> pastoral<br />

system remain unanswered. There is a critical need for more in-depth studies<br />

<strong>of</strong> <strong>the</strong> relationship between herbivores <strong>and</strong> <strong>the</strong> vegetation resource, <strong>and</strong> <strong>the</strong><br />

relationship between domestic livestock <strong>and</strong> wild herbivores.<br />

For <strong>the</strong> Tibetan Steppe <strong>the</strong>re is need for fresh perspectives <strong>and</strong> information<br />

on ecosystem dynamics <strong>and</strong> pastoral development . Theories <strong>of</strong> plant succession<br />

leading to a single equilibrium community have been found to be inadequate<br />

for underst<strong>and</strong>ing <strong>the</strong> complex successional pathways <strong>of</strong> semi -arid <strong>and</strong> arid<br />

rangel<strong>and</strong> ecosystems (Stringham, Krueger <strong>and</strong> Thomas, 2001; Westoby, Walker<br />

<strong>and</strong> Noy-Meir, 1989a). This recognition has generated a search for an alternative<br />

<strong>the</strong>ory that more adequately reflects <strong>the</strong> dynamics <strong>of</strong> pasture ecosystems.<br />

Theories involving multiple successional pathways, multiple steady states <strong>and</strong><br />

state-<strong>and</strong>-transition processes are gaining in acceptance. On Tibetan Steppe<br />

pastures <strong>the</strong>refore, traditional measures for condition <strong>and</strong> carrying capacities<br />

may not be effective gauges for management . New perspectives regarding nonequilibrium<br />

ecosystem dynamics <strong>and</strong> concepts about plant succession processes<br />

in semi-arid ecosystems provide interesting frameworks for analysing Tibetan<br />

Steppe pastures (Cincotta, Zhang <strong>and</strong> Zhou, 1992; Fern<strong>and</strong>ez-Gimenez <strong>and</strong><br />

Allen-Diaz, 1999; Westoby, Walker <strong>and</strong> Noy-Meir, 1989b).<br />

Nei<strong>the</strong>r are <strong>the</strong> socio-economic dimensions <strong>of</strong> Tibetan pastoral production<br />

systems well known (Clarke, 1992; Goldstein <strong>and</strong> Beall, 1989; Levine, 1998);<br />

greater efforts need to be directed towards developing a better underst<strong>and</strong>ing<br />

<strong>of</strong> current systems <strong>and</strong> how <strong>the</strong>y are changing <strong>and</strong> adapting to development<br />

influences. Practices vary considerably across <strong>the</strong> area <strong>and</strong> need to be analysed<br />

(Clarke, 1987). Why do herders in different areas maintain different herd compositions?<br />

What are current <strong>of</strong>ftake rates <strong>and</strong> how do increasing dem<strong>and</strong>s for<br />

livestock products in <strong>the</strong> marketplace affect livestock sales? What constraints<br />

<strong>and</strong> opportunities for improving livestock productivity are recognized by <strong>the</strong><br />

herders? What forms <strong>of</strong> social organization exist for managing livestock <strong>and</strong><br />

grassl<strong>and</strong>s? How have <strong>the</strong>se practices changed in recent years <strong>and</strong> what are <strong>the</strong><br />

implications <strong>of</strong> <strong>the</strong>se transformations? Answers to <strong>the</strong>se <strong>and</strong> related questions,<br />

will help unravel many <strong>of</strong> <strong>the</strong> complexities <strong>of</strong> Tibetan pastoralism. Analyses<br />

<strong>of</strong> <strong>the</strong> socio-economic processes at work are a key challenge for researchers.<br />

It will also be important to determine which aspects <strong>of</strong> indigenous knowledge<br />

systems <strong>and</strong> traditional pastoral strategies can be used in <strong>the</strong> design <strong>of</strong> new<br />

development interventions on <strong>the</strong> Tibetan Steppe (Miller, 2002; Wu, 1998).


336<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

There is growing appreciation <strong>of</strong> <strong>the</strong> complexity <strong>and</strong> ecological <strong>and</strong> economic<br />

efficacy <strong>of</strong> traditional pastoralism (Wu, 1997b) which provides hope that <strong>the</strong><br />

knowledge that pastoralists possess will be used in designing development<br />

interventions. It also gives a prospect that <strong>the</strong> pastoralists will be listened to <strong>and</strong><br />

involved in <strong>the</strong> planning <strong>and</strong> implementation <strong>of</strong> pastoral development. Herders<br />

must be involved in <strong>the</strong> initial design <strong>of</strong> interventions, <strong>the</strong>ir needs <strong>and</strong> desires must<br />

be heard <strong>and</strong> <strong>the</strong>ir knowledge put to use. An important message for policy-makers<br />

is <strong>the</strong> need for active participation by <strong>the</strong> herders in all aspects <strong>of</strong> <strong>the</strong> development<br />

process <strong>and</strong> for empowered herders to manage <strong>the</strong>ir own development.<br />

Given <strong>the</strong> generally poor experience with settling herders in o<strong>the</strong>r pastoral<br />

areas <strong>of</strong> <strong>the</strong> world, it will be interesting to watch <strong>the</strong> attempts to foster more<br />

sedentary livestock production systems on Tibetan grassl<strong>and</strong>s. What effects<br />

will <strong>the</strong> privatization <strong>of</strong> <strong>the</strong> grazing l<strong>and</strong>s have on pasture condition ? Will<br />

herders overgraze pastures which <strong>the</strong>y now view as <strong>the</strong>ir own property? What<br />

kinds <strong>of</strong> monitoring programmes are needed to look after <strong>the</strong> privatized pastures?<br />

What effect will private l<strong>and</strong> <strong>and</strong> fences have on traditional mechanisms<br />

for pooling livestock into group herds <strong>and</strong> group herding ?<br />

There is a need to re-orient policy objectives in terms <strong>of</strong> grassl<strong>and</strong> management<br />

<strong>and</strong> livestock production, <strong>and</strong> in <strong>the</strong> management <strong>of</strong> rural development .<br />

Maximizing agricultural output is not relevant to current circumstances.<br />

The need in <strong>the</strong> twenty-first century is for ecologically <strong>and</strong> economically<br />

sustainable development <strong>of</strong> pastoral areas, nei<strong>the</strong>r <strong>of</strong> which is consistent with<br />

output maximization (<strong>World</strong> Bank, 2001). Policies <strong>and</strong> development strategies<br />

should be based on consideration <strong>of</strong> ecological constraints, <strong>the</strong> interests <strong>and</strong><br />

aspirations <strong>of</strong> <strong>the</strong> pastoralists <strong>the</strong>mselves <strong>and</strong> alternative methods <strong>of</strong> meeting<br />

social objectives. There is a general need to invest more in grassl<strong>and</strong> <strong>and</strong><br />

livestock research in <strong>the</strong> Tibetan Steppe to guide policies <strong>and</strong> to help herders<br />

develop appropriate technologies for <strong>the</strong> range <strong>of</strong> ecological <strong>and</strong> socioeconomic<br />

conditions found. Research needs to be more participatory <strong>and</strong><br />

herders need to play a larger role in setting priorities <strong>and</strong> in determining <strong>the</strong><br />

merits <strong>of</strong> findings.<br />

Opportunities do exist, however, for improving <strong>the</strong> management <strong>of</strong> pastoral<br />

resources , increasing livestock productivity <strong>and</strong> bettering <strong>the</strong> livelihoods <strong>of</strong> <strong>the</strong><br />

population. Programmes stressing multiple use, participatory development ,<br />

sustainability , economics <strong>and</strong> biodiversity could be realized through complementary<br />

activities in resource management, livestock production <strong>and</strong> wildlife<br />

conservation . Sustainable l<strong>and</strong> use on <strong>the</strong> Tibetan Steppe depends heavily on<br />

<strong>the</strong> local-level users <strong>of</strong> <strong>the</strong> resources – <strong>the</strong> Tibetan herders. It is at this level that<br />

pastoral resource use decisions are made on a daily basis. It is also at this local<br />

level that awareness, incentives <strong>and</strong> institutional <strong>and</strong> infrastructure conditions<br />

must be appropriate in order to secure sustainable grassl<strong>and</strong> management.<br />

Sustainable grassl<strong>and</strong> management <strong>and</strong> pastoral development on <strong>the</strong> Tibetan<br />

Steppe requires: (1) greater concern about <strong>the</strong> welfare <strong>of</strong> herders; (2) increased


The Tibetan Steppe 337<br />

concern about grassl<strong>and</strong> degradation <strong>and</strong> ecosystem processes; <strong>and</strong> (3) <strong>the</strong><br />

political will to address <strong>the</strong> problems. Concern <strong>and</strong> political will are not<br />

enough: <strong>the</strong>re also has to be improved human resource capability to design <strong>and</strong><br />

implement policies <strong>and</strong> actions. Lack <strong>of</strong> capacity at <strong>the</strong> local level is one <strong>of</strong> <strong>the</strong><br />

main constraints to more sustainable pastoral development <strong>and</strong> pasture management<br />

in <strong>the</strong> Tibetan Steppe. It is necessary, <strong>the</strong>refore, to foster an enabling<br />

environment for local-level capacity building. This must take into account <strong>the</strong><br />

local variability <strong>and</strong> site-specific conditions related to climate, soils, ecology,<br />

livestock production <strong>and</strong> socio-economic factors.<br />

REFERENCES<br />

Achuff, P. & Petocz, R. 1988. Preliminary resource inventory <strong>of</strong> <strong>the</strong> Arjin Mountains<br />

Nature Reserve, Xinjiang , People’s Republic <strong>of</strong> China . <strong>World</strong> Wide Fund for<br />

Nature, Gl<strong>and</strong>, Switzerl<strong>and</strong>.<br />

Banks, T.J. 1997. Pastoral l<strong>and</strong> tenure reform <strong>and</strong> resource management in Nor<strong>the</strong>rn<br />

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China . Berlin, Germany: Dietrich Reimer Verlag.


Australian grassl<strong>and</strong>s 343<br />

Chapter 9<br />

Australian grassl<strong>and</strong>s<br />

John G. McIvor<br />

SUMMARY<br />

Australia has a latitudinal range <strong>of</strong> 11°S to 44°S, which, coupled with precipitation<br />

from 100 mm to 4 000 mm, generates a wide range <strong>of</strong> grassl<strong>and</strong> environments.<br />

The l<strong>and</strong>scape is characterized by vast plains with only limited elevated areas.<br />

Native herbage remains <strong>the</strong> basis for a significant portion <strong>of</strong> <strong>the</strong> grazing industry.<br />

Europeans settled in Australia two hundred years ago, <strong>and</strong> have had a massive<br />

impact on vegetation through agricultural development <strong>and</strong> introduction <strong>of</strong><br />

exotic plants <strong>and</strong> animals. Most farms rely on animal products from grassl<strong>and</strong>s.<br />

Grazing l<strong>and</strong> tenure is a mix <strong>of</strong> freehold <strong>and</strong> leasehold from government. Family<br />

owned <strong>and</strong> operated farms remain <strong>the</strong> dominant unit. Most grassl<strong>and</strong> products are<br />

exported. Arid <strong>and</strong> semi- arid tropical areas are used for extensive cattle grazing;<br />

water from artesian wells <strong>and</strong> bores is necessary. Pasture growth is very seasonal<br />

<strong>and</strong> stock lose weight in <strong>the</strong> dry season. The intermediate rainfall zone extends<br />

from south eastern Queensl<strong>and</strong> through New South Wales, nor<strong>the</strong>rn Victoria <strong>and</strong><br />

sou<strong>the</strong>rn South Australia, <strong>and</strong> includes part <strong>of</strong> south western Australia. Crops are<br />

combined with sheep rearing; ley farming systems , where a legume-based pasture<br />

phase <strong>of</strong> two to five years is alternated with crops for one to three years, were<br />

widely adopted in sou<strong>the</strong>rn areas. This high-rainfall zone forms <strong>the</strong> greater part <strong>of</strong><br />

<strong>the</strong> coastal belt <strong>and</strong> adjacent tablel<strong>and</strong>s <strong>of</strong> <strong>the</strong> three eastern mainl<strong>and</strong> states; sown<br />

pastures are widely used. Sheep <strong>and</strong> cattle dominate livestock numbers; wool<br />

sheep <strong>and</strong> beef cattle predominate, but dairying is locally important. Animals<br />

that compete for grazing include a range <strong>of</strong> macropods <strong>and</strong> feral domestic species.<br />

Sown pasture technology is well developed in <strong>the</strong> temperate zone, based on <strong>the</strong><br />

use <strong>of</strong> selected, exotic species, with emphasis on legumes. Development <strong>of</strong> sown<br />

pastures was slower in <strong>the</strong> tropical areas <strong>and</strong> suffered a set-back when disease<br />

affected Stylosan<strong>the</strong>s st<strong>and</strong>s.<br />

INTRODUCTION<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>and</strong> grazing have been important over much <strong>of</strong> Australia since<br />

human colonization <strong>and</strong> grazing remains <strong>the</strong> most widespread l<strong>and</strong> use,<br />

covering approximately 70 percent <strong>of</strong> <strong>the</strong> continent. <strong>Grassl<strong>and</strong>s</strong> support <strong>the</strong><br />

native game hunted by <strong>the</strong> original Aboriginal colonists <strong>and</strong> <strong>the</strong> domestic<br />

grazing animals introduced by European colonists in <strong>the</strong> late eighteenth<br />

century. Native herbs (particularly grasses) <strong>and</strong> shrubs provided <strong>the</strong> initial


344<br />

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grazing but <strong>the</strong>se have been supplemented – <strong>and</strong> in some cases replaced – by<br />

exotic species.<br />

There are a number <strong>of</strong> descriptions <strong>of</strong> Australian grassl<strong>and</strong>s (e.g. McTaggart,<br />

1936; Moore, 1970, 1993; Groves <strong>and</strong> Williams, 1981) that have been drawn<br />

on in preparing this paper. Following Moore (1970), all herbaceous communities<br />

used for livestock production are considered grassl<strong>and</strong>s, <strong>and</strong> include both<br />

native communities that are grazed <strong>and</strong> pastures composed <strong>of</strong> mainly introduced<br />

plants, ei<strong>the</strong>r sown or volunteer. This paper concentrates on dryl<strong>and</strong> or<br />

rainfed pastures, but irrigated pastures are important (approximately one million<br />

hectares), particularly in some dairying areas in sou<strong>the</strong>rn Australia (about<br />

half <strong>of</strong> all irrigation water in Australia is used on pastures).<br />

LOCATION<br />

Australia covers an area <strong>of</strong> 7.68 million km 2 , from 11°S to 44°S, <strong>and</strong> this<br />

latitudinal range, coupled with annual rainfalls ranging from 100 mm to more<br />

than 4 000 mm, both coastal <strong>and</strong> inl<strong>and</strong> areas, <strong>and</strong> a variety <strong>of</strong> soils, generates a<br />

wide range <strong>of</strong> grassl<strong>and</strong> environments.<br />

PHYSICAL FEATURES<br />

The Australian l<strong>and</strong>scape is characterized by vast plains <strong>and</strong> plateaux (threequarters<br />

lie between 180 <strong>and</strong> 460 m above sea level) with only limited elevated<br />

areas. The continent can be divided into three major structural components –<br />

<strong>the</strong> stable Western Shield, <strong>the</strong> gently warped Central Basin, <strong>and</strong> <strong>the</strong> Eastern<br />

Upl<strong>and</strong>s (from Tasmania to north Queensl<strong>and</strong>), which are <strong>of</strong> ancient origin<br />

but have been rejuvenated to some degree. These components determine<br />

<strong>the</strong> pattern <strong>of</strong> relief <strong>and</strong> drainage. The Eastern Upl<strong>and</strong>s contain <strong>the</strong> highest<br />

mountains in Australia (including Mt Kosciusko, 2 200 m) <strong>and</strong> <strong>the</strong> only area<br />

with snow. They form <strong>the</strong> divide between <strong>the</strong> steep eastern-flowing rivers <strong>and</strong><br />

those draining west. The Central Basin has two major drainage systems – <strong>the</strong><br />

Murray-Darling system, which includes run<strong>of</strong>f from <strong>the</strong> sou<strong>the</strong>astern rim, <strong>and</strong><br />

one draining internally to Lake Eyre. The Great Artesian Basin lies to <strong>the</strong> west<br />

<strong>of</strong> <strong>the</strong> Eastern Upl<strong>and</strong>s in Queensl<strong>and</strong>, New South Wales <strong>and</strong> South Australia,<br />

<strong>and</strong> water from this Basin has enabled grazing industries to establish <strong>and</strong><br />

persist over a wide area <strong>of</strong> arid <strong>and</strong> semi -arid inl<strong>and</strong> Australia.<br />

CLIMATE<br />

Rainfall<br />

Total annual precipitation varies from more than 4 000 mm in <strong>the</strong> mountainous<br />

areas <strong>of</strong> nor<strong>the</strong>ast Queensl<strong>and</strong> to approximately 100 mm in <strong>the</strong> north <strong>of</strong><br />

South Australia . Approximately one-third <strong>of</strong> Australia receives over 500 mm<br />

<strong>of</strong> rain, one-third has 250 to 500 mm <strong>and</strong> one-third has less than 250 mm;<br />

rainfall is greatest in coastal areas <strong>and</strong> lower inl<strong>and</strong>. Seasonal distribution varies<br />

markedly over <strong>the</strong> continent, from strong summer dominance in <strong>the</strong> north


Australian grassl<strong>and</strong>s 345<br />

TABLE 9.1<br />

Climate data for selected stations. Rainfall periods are October–March (summer ) <strong>and</strong> April–<br />

September (winter ). Maximum temperature is <strong>the</strong> average daily maximum temperature during <strong>the</strong><br />

hottest month <strong>and</strong> minimum temperature is <strong>the</strong> average daily minimum temperature during <strong>the</strong><br />

coldest month.<br />

Location Lat. Long.<br />

Rainfall (mm)<br />

Summer Winter<br />

Temperature (°C)<br />

Max. Min.<br />

Evaporation<br />

(mm)<br />

Daly Waters 16.26°S 133.37°E 625 43 38.5 11.7 2 508<br />

Cairns 16.89°S 145.76°E 1 567 440 31.5 17.0 2 254<br />

Gayndah 25.66°S 151.75°E 510 196 32.4 6.9 2 035<br />

Charleville 26.41°S 146.26°E 326 156 34.9 4.1 2 583<br />

Narrogin 32.94°S 118.18°E 113 391 30.9 5.6 1 646<br />

Wagga Wagga 35.16°S 147.46°E 276 309 31.2 2.7 1 830<br />

Hamilton 37.83°S 142.06°E 268 432 25.9 4.2 1 311<br />

SOURCE: Data from <strong>the</strong> Bureau <strong>of</strong> Meteorology Climate Averages.<br />

(e.g. Daly Waters in Table 9.1) to strong winter dominance in <strong>the</strong> southwest<br />

(e.g. Narrogin in Table 9.1). The total amounts <strong>and</strong> distribution reflect <strong>the</strong><br />

continental wea<strong>the</strong>r systems . Monsoonal rains fall in <strong>the</strong> extreme north<br />

between November <strong>and</strong> March; tropical cyclones can affect most <strong>of</strong> nor<strong>the</strong>rn<br />

Australia during this time but <strong>the</strong>y are very erratic; <strong>and</strong> trade winds provide<br />

orographic rains to <strong>the</strong> nor<strong>the</strong>ast Queensl<strong>and</strong> coast. In sou<strong>the</strong>rn Australia, in<br />

contrast, <strong>the</strong> most precipitation comes from frontal rains occurring from May<br />

to September.<br />

Erratic rainfall , disastrous droughts <strong>and</strong> occasional floods are a feature <strong>of</strong><br />

<strong>the</strong> Australian climate. When variability is expressed in terms <strong>of</strong> <strong>the</strong> mean<br />

deviation as a percentage <strong>of</strong> <strong>the</strong> annual mean, <strong>the</strong> most reliable areas are <strong>the</strong><br />

northwest coast near Darwin, <strong>the</strong> southwest <strong>of</strong> Western Australia , coastal areas<br />

in South Australia, Victoria <strong>and</strong> New South Wales, <strong>and</strong> Tasmania. Variability<br />

increases inl<strong>and</strong>, <strong>and</strong> <strong>the</strong> great bulk <strong>of</strong> Australian rangel<strong>and</strong>s have highly erratic<br />

rainfall. Maximum variability is found on <strong>the</strong> western coast near <strong>the</strong> Tropic<br />

<strong>of</strong> Capricorn <strong>and</strong> in central Australia. Much <strong>of</strong> <strong>the</strong> variation in rainfall in<br />

eastern Australia can be related to <strong>the</strong> ENSO (El Niño-Sou<strong>the</strong>rn Oscillation)<br />

phenomenon <strong>of</strong> sea surface temperatures <strong>and</strong> atmospheric pressures over <strong>the</strong><br />

Pacific Ocean.<br />

Temperature <strong>and</strong> evaporation<br />

Summers are warm to hot (Table 9.1). Maximum temperatures above 38°C are<br />

common in inl<strong>and</strong> areas <strong>and</strong>, apart from <strong>the</strong> mountains <strong>of</strong> <strong>the</strong> sou<strong>the</strong>ast, can<br />

occur occasionally in o<strong>the</strong>r areas. Winters are warm in nor<strong>the</strong>rn Australia <strong>and</strong><br />

cold in <strong>the</strong> south, with occasional snow above 600 m. Frosts occur in all regions<br />

except <strong>the</strong> extreme north, <strong>and</strong> coastal areas in o<strong>the</strong>r tropical <strong>and</strong> subtropical<br />

regions. Evaporation is lowest in <strong>the</strong> Tasmanian highl<strong>and</strong>s. On <strong>the</strong> mainl<strong>and</strong>,<br />

evaporation is lowest in coastal areas <strong>and</strong> increases inl<strong>and</strong> to maximum values<br />

exceeding 3 000 mm in central Australia. The generally mild conditions make<br />

it unnecessary to house animals during winter .


346<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Growing seasons<br />

Given <strong>the</strong> variation in amount <strong>and</strong> distribution <strong>of</strong> rainfall <strong>and</strong> <strong>the</strong> temperature<br />

range over <strong>the</strong> continent, it is not surprising <strong>the</strong>re is a wide range in growing<br />

seasons – from no reliable season in arid inl<strong>and</strong> areas, to almost year-long<br />

seasons in some coastal areas. Fitzpatrick <strong>and</strong> Nix (1970) described a method<br />

for estimating growing seasons from climatic data. They developed indices<br />

varying in value from zero to one for light, temperature <strong>and</strong> moisture. A value<br />

<strong>of</strong> zero means that <strong>the</strong> level <strong>of</strong> that factor is so low that all growth is prevented;<br />

a value <strong>of</strong> one means that <strong>the</strong>re is no limitation to growth by that factor. The<br />

three indices are <strong>the</strong>n combined to produce a growth index that measures <strong>the</strong><br />

combined impact <strong>of</strong> all factors. Figure 9.1 shows <strong>the</strong> average weekly values <strong>of</strong><br />

<strong>the</strong> temperature <strong>and</strong> moisture indices for four sites in Table 9.1 <strong>and</strong> demonstrates<br />

a range <strong>of</strong> growing seasons (<strong>the</strong> light index has been omitted as radiation is<br />

usually not limiting to growth). At Hamilton (in <strong>the</strong> high rainfall zone <strong>of</strong> <strong>the</strong><br />

section on “pastoral <strong>and</strong> agricultural systems ”, below), moisture limits growth<br />

in summer but <strong>the</strong>re is <strong>of</strong>ten sufficient for some growth. Moisture availability<br />

increases rapidly in autumn <strong>and</strong> <strong>the</strong>re is a period <strong>of</strong> increased growth until<br />

low temperatures limit growth in winter , followed by a spring “flush” before<br />

water again becomes limiting in summer. At Narrogin (wheat-sheep zone)<br />

Index<br />

Index<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

0.0<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

0.0<br />

Hamilton<br />

J M M J S N<br />

Water<br />

Cairns<br />

Temperature<br />

J M M J S N<br />

Index<br />

Index<br />

Narrogin<br />

Figure 9.1<br />

Average weekly water <strong>and</strong> temperature indices for selected Australian locations.<br />

SOURCE: Fitzpatrick <strong>and</strong> Nix, 1970.<br />

NOTES: Water indices were calculated using <strong>the</strong> WATBAL model (Keig <strong>and</strong> McAlpine, 1974) <strong>and</strong> temperature<br />

indices were estimated from <strong>the</strong> relationships <strong>of</strong> Fitzpatrick <strong>and</strong> Nix (1970) for tropical legumes (Cairns <strong>and</strong><br />

Charleville) <strong>and</strong> temperate species (Hamilton <strong>and</strong> Narrogin). A value <strong>of</strong> 0 means that <strong>the</strong> level <strong>of</strong> that factor is<br />

so low that all growth is prevented, <strong>and</strong> a value <strong>of</strong> 1 means that <strong>the</strong>re is no limitation to growth by that factor.<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

0.0<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

0.0<br />

J M M J S N<br />

Charleville<br />

J M M J S N


Australian grassl<strong>and</strong>s 347<br />

<strong>the</strong>re is almost no summer moisture <strong>and</strong> growth occurs mainly in autumn<br />

<strong>and</strong> spring although <strong>the</strong> temperature limitations in winter are not as severe<br />

as those at Hamilton. At Cairns, in <strong>the</strong> wet tropics <strong>of</strong> nor<strong>the</strong>ast Queensl<strong>and</strong>,<br />

both temperature <strong>and</strong> moisture levels are high during <strong>the</strong> wet season <strong>and</strong> <strong>the</strong><br />

major limit to growth is moisture during <strong>the</strong> dry season . At Charleville (in<br />

<strong>the</strong> pastoral zone), average moisture levels are low throughout <strong>the</strong> whole year<br />

(although <strong>the</strong>y can be high at any time <strong>of</strong> <strong>the</strong> year in a particular year) <strong>and</strong><br />

temperatures are severely limiting for tropical species in winter.<br />

SOILS<br />

Hubble (1970) identified three important features <strong>of</strong> Australian soils. First,<br />

<strong>the</strong> generally low nutrient status, with widespread <strong>and</strong> severe deficiencies <strong>of</strong><br />

nitrogen <strong>and</strong> phosphorus (<strong>and</strong> sometimes sulphur), <strong>and</strong> varying deficiencies<br />

<strong>of</strong> trace elements (copper, zinc, molybdenum, cobalt, manganese, boron).<br />

Multiple deficiencies are common <strong>and</strong>, as Morley (1961) remarked, “Australian<br />

soils are rich only in <strong>the</strong> diversity <strong>and</strong> intensity <strong>of</strong> <strong>the</strong>ir deficiencies.” Second,<br />

<strong>the</strong> poor physical condition <strong>of</strong> surface soils, which, over large areas, are massive<br />

or weakly structured with low macroporosity, set hard on drying <strong>and</strong> tend to<br />

surface sealing. As a result, water infiltration is <strong>of</strong>ten poor <strong>and</strong> water storage<br />

low. Third, over large areas, <strong>the</strong> soils have strongly wea<strong>the</strong>red or differentiated<br />

pr<strong>of</strong>iles, including those with strong texture contrast. Good soils (deep, fertile,<br />

well drained) are not common <strong>and</strong> are used for cropping if <strong>the</strong> climate is<br />

suitable, leaving <strong>the</strong> poorer soils for pastures.<br />

LIVESTOCK<br />

Sheep <strong>and</strong> cattle dominate <strong>the</strong> Australian livestock numbers, but <strong>the</strong>re have<br />

been marked changes in <strong>the</strong>ir relative importance over <strong>the</strong> past 30 years. The<br />

majority <strong>of</strong> <strong>the</strong> sheep are Merinos for wool, but British breeds <strong>and</strong> <strong>the</strong>ir<br />

crosses with Merinos are important for lamb production. Sheep numbers<br />

peaked at 180 million in 1970, <strong>the</strong>n declined, but rose again to 170 million<br />

in 1990. Market prospects for wool have been poor since <strong>the</strong>n <strong>and</strong> numbers<br />

declined to 119 million in 2000. Most <strong>of</strong> <strong>the</strong> cattle are beef animals but<br />

dairying is important in wetter coastal areas <strong>and</strong> some irrigation districts,<br />

particularly in Victoria. Cattle numbers reached a peak <strong>of</strong> 33 million in 1976,<br />

<strong>the</strong>n fell until <strong>the</strong> mid -1980s, but have since increased to 24 million beef cattle<br />

<strong>and</strong> 3 million dairy cattle in 2000. There are important goat herds in some<br />

inl<strong>and</strong> areas, <strong>and</strong> an estimated feral goat population <strong>of</strong> 4.5 million <strong>and</strong> a small<br />

deer industry with approximately 200 000 animals.<br />

WILDLIFE<br />

Australia has large populations <strong>of</strong> wildlife , including both native species <strong>and</strong><br />

feral populations <strong>of</strong> exotic animals. There are a number <strong>of</strong> important predators<br />

(dingo , fox , wild pig , raven or crow , eagle ), <strong>and</strong> also a range <strong>of</strong> animals


348<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

that compete for grazing . These include a range <strong>of</strong> macropods (kangaroos ,<br />

wallabies ) <strong>and</strong> also domestic species (rabbits , donkeys, horses, camels ). Rabbits<br />

have been <strong>and</strong> continue to be large competitors with domestic stock, although<br />

<strong>the</strong>ir numbers have been reduced by myxoma virus since <strong>the</strong> 1950s, <strong>and</strong> more<br />

recently by rabbit calicivirus. Australia had no equivalent <strong>of</strong> <strong>the</strong> huge herds <strong>of</strong><br />

herbivores in parts <strong>of</strong> Africa or America, <strong>and</strong> <strong>the</strong> native plants evolved under<br />

conditions <strong>of</strong> generally light grazing, which has had serious consequences for<br />

<strong>the</strong>ir survival under increased grazing pressures since European settlement.<br />

SOCIAL ASPECTS AND INSTITUTIONS<br />

People<br />

The date <strong>of</strong> settlement <strong>of</strong> Australia by humans is debated, but <strong>the</strong>re have been<br />

Aborigines in Australia for over 60 000 years; <strong>the</strong>y were primarily hunters <strong>and</strong><br />

<strong>the</strong>ir major influence on <strong>the</strong> grassl<strong>and</strong>s would have been through widespread<br />

use <strong>of</strong> fire , to encourage feed for <strong>the</strong>ir prey <strong>and</strong> to assist with hunting.<br />

In contrast to this long period <strong>of</strong> Aboriginal occupation, Europeans only<br />

settled in Australia a little over 200 years ago, but in this time <strong>the</strong>y have had<br />

massive impacts on <strong>the</strong> vegetation , both intentional (tree clearing , cropping <strong>and</strong><br />

sown pasture introductions, fertilizer application, domestic grazing animals,<br />

etc.) <strong>and</strong> accidental (weeds, pest animals). Settlement was rapid <strong>and</strong> almost all<br />

suitable l<strong>and</strong>s were occupied by <strong>the</strong> end <strong>of</strong> <strong>the</strong> nineteenth century. Despite this<br />

rapid spread, <strong>the</strong> population remains concentrated in major cities <strong>and</strong> coastal<br />

urban areas, with only a sparse population in <strong>the</strong> interior. Approximately<br />

80 percent <strong>of</strong> Australia, including all <strong>the</strong> pastoral zone (see section below), has<br />

a population density <strong>of</strong> less than 1 person/km 2 . For example, <strong>the</strong> Diamantina<br />

Shire in southwest Queeensl<strong>and</strong> has an area <strong>of</strong> 94 832 km 2 <strong>and</strong> had a resident<br />

population <strong>of</strong> 319 in <strong>the</strong> 2001 Census.<br />

Political system<br />

Until 1901, Australia consisted <strong>of</strong> six self-governing British colonies, which<br />

federated in 1901 to become states <strong>of</strong> <strong>the</strong> Commonwealth <strong>of</strong> Australia, with<br />

democratically elected governments at national, state <strong>and</strong> local levels. Specific<br />

powers were transferred to <strong>the</strong> Commonwealth government (e.g. defence,<br />

immigration, social welfare) but many important powers affecting agriculture<br />

remain State responsibilities, including l<strong>and</strong> use <strong>and</strong> ownership, water supplies,<br />

<strong>and</strong> control <strong>of</strong> pests <strong>and</strong> noxious weeds.<br />

L<strong>and</strong> tenure <strong>and</strong> ownership<br />

Grazing l<strong>and</strong> tenure in Australia is a mix <strong>of</strong> freehold <strong>and</strong> leasehold from<br />

government. Freehold is commonest in <strong>the</strong> higher rainfall areas, with leasehold<br />

most important in <strong>the</strong> extensive grazing l<strong>and</strong>s in <strong>the</strong> tropics <strong>and</strong> arid inl<strong>and</strong><br />

Australia. Overall, only approximately 10 percent <strong>of</strong> l<strong>and</strong> is privately owned,<br />

but <strong>the</strong> proportion varies widely between states <strong>and</strong> territories, from less than


Australian grassl<strong>and</strong>s 349<br />

1 percent in <strong>the</strong> Nor<strong>the</strong>rn Territory to approximately 60 percent in Victoria.<br />

Leases vary from state to state, from annual to perpetual, although <strong>the</strong><br />

majority are for long periods, <strong>and</strong> <strong>the</strong> conditions also vary, e.g. improvements<br />

(buildings, fences , water supplies) to be made, <strong>and</strong> stock numbers to be carried.<br />

There have been some important changes in <strong>the</strong> last decade: Aboriginal l<strong>and</strong><br />

rights have raised uncertainties concerning <strong>the</strong> rights <strong>of</strong> pastoral lessees;<br />

increasing emphasis on l<strong>and</strong> condition in pastoral leases; <strong>and</strong> increasingly<br />

restrictive conditions on <strong>the</strong> use <strong>and</strong> management <strong>of</strong> freehold l<strong>and</strong> in relation<br />

to vegetation management, particularly tree clearing .<br />

Approximately 90 000 <strong>of</strong> Australia ’s 145 000 agricultural properties rely on<br />

animal products from pastures <strong>and</strong> grassl<strong>and</strong>s (Anon., 1999). Family owned <strong>and</strong><br />

operated farms have been, <strong>and</strong> remain, <strong>the</strong> dominant structural unit in Australian<br />

agriculture. In a 1994–95 survey by <strong>the</strong> Australian Bureau <strong>of</strong> Agricultural <strong>and</strong><br />

Resource Economics (ABARE), 99.6 percent <strong>of</strong> all broadacre (grazing , cropping)<br />

<strong>and</strong> dairy farms were family owned <strong>and</strong> only 0.4 percent were corporately<br />

operated (i.e. at least partially owned by a publicly listed company) (Martin,<br />

1996). Corporate ownership is most significant in <strong>the</strong> beef industry, particularly<br />

in nor<strong>the</strong>rn Australia. However, even in <strong>the</strong> beef industry in 1996–97, only<br />

1.1 percent <strong>of</strong> specialist beef properties were corporately owned (Martin et al.,<br />

1998). The corporate properties were much larger (47 percent <strong>of</strong> <strong>the</strong> total property<br />

area) <strong>and</strong> owned more cattle (19 percent <strong>of</strong> total numbers). The majority<br />

<strong>of</strong> family-owned properties are in New South Wales (31 percent <strong>of</strong> all family-owned<br />

farms), Queensl<strong>and</strong> (28 percent) <strong>and</strong> Victoria (26 percent), whereas<br />

<strong>the</strong> corporate properties are mainly in Queensl<strong>and</strong> (40 percent <strong>of</strong> all corporate<br />

properties) <strong>and</strong> <strong>the</strong> Nor<strong>the</strong>rn Territory (32 percent). Farm numbers are declining<br />

as properties amalgamate, <strong>and</strong> numbers have halved in <strong>the</strong> last forty years.<br />

Authorities responsible for l<strong>and</strong> management<br />

L<strong>and</strong> is a State government responsibility under <strong>the</strong> Australian Constitution.<br />

All states <strong>and</strong> territories have l<strong>and</strong>s departments responsible for titles <strong>and</strong><br />

some aspects <strong>of</strong> management . During <strong>the</strong> early years <strong>of</strong> European settlement<br />

emphasis was placed on <strong>the</strong> occupation <strong>of</strong> l<strong>and</strong> <strong>and</strong> establishing <strong>and</strong> maintaining<br />

agricultural production. After <strong>the</strong> gold rushes in <strong>the</strong> 1850s, <strong>the</strong>re were dem<strong>and</strong>s<br />

for large numbers <strong>of</strong> small farms to develop <strong>the</strong> country <strong>and</strong> stimulate economic<br />

development . Closer Settlement Acts were passed in <strong>the</strong> 1860s <strong>and</strong> Government<br />

sponsored closer settlement schemes to promote rural development remained<br />

important until <strong>the</strong> 1970s, especially after both <strong>World</strong> Wars. This emphasis on<br />

agricultural production continued until recently; now increased stress has been<br />

placed on l<strong>and</strong> management issues.<br />

Market systems<br />

Agricultural production is privately controlled , but Australia has had a<br />

variety <strong>of</strong> marketing mechanisms for agricultural products. However, with <strong>the</strong>


350<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

cessation <strong>of</strong> <strong>the</strong> wool reserve price scheme in 1992, <strong>the</strong>se mechanisms are no<br />

longer important for products from grassl<strong>and</strong>s.<br />

Most <strong>of</strong> <strong>the</strong> production from grassl<strong>and</strong>s is exported. For <strong>the</strong> three years from<br />

1994 to 1997 (ABARE, 1998) Australia produced an average <strong>of</strong> 1 800 000 t <strong>of</strong><br />

beef <strong>and</strong> veal <strong>and</strong> 582 000 t <strong>of</strong> mutton <strong>and</strong> lamb – 42 percent <strong>and</strong> 56 percent,<br />

respectively, <strong>of</strong> which was exported, toge<strong>the</strong>r with 628 000 live cattle <strong>and</strong> 5.6<br />

million live sheep . Whole milk production averaged 8 650 million litres, <strong>and</strong><br />

although only a small amount was exported as whole milk (71 million litres),<br />

64 percent <strong>of</strong> <strong>the</strong> 739 000 t <strong>of</strong> dairy products (butter, cheese, whole milk<br />

powder, skim milk powder, casein) were exported. Average wool production<br />

during this period was 718 000 t <strong>and</strong> <strong>the</strong> amount exported exceeded this figure<br />

with <strong>the</strong> sell-<strong>of</strong>f <strong>of</strong> accumulated supplies. This dependence on exports means<br />

that international prices have a large impact on returns to producers.<br />

Pastoral <strong>and</strong> agricultural systems<br />

Many factors affect <strong>the</strong> agricultural system adopted in an area – climate <strong>and</strong><br />

growing conditions, soil type , topography, markets, distance to markets, labour<br />

availability, etc. Animal production systems can be conveniently considered in<br />

<strong>the</strong> three zones used by ABARE – <strong>the</strong> pastoral zone, <strong>the</strong> wheat-sheep zone <strong>and</strong><br />

<strong>the</strong> high rainfall zone. These differ in <strong>the</strong> manner in which l<strong>and</strong> <strong>and</strong> resources<br />

are used <strong>and</strong> <strong>the</strong> commodities produced.<br />

Pastoral zone<br />

This zone includes <strong>the</strong> arid <strong>and</strong> semi -arid regions <strong>and</strong> most <strong>of</strong> <strong>the</strong> nor<strong>the</strong>rn tropical<br />

areas. Agricultural l<strong>and</strong> use in this zone is characterized by extensive grazing<br />

<strong>of</strong> native vegetation . Although some cropping is undertaken, it is impractical on<br />

most properties because <strong>of</strong> inadequate rainfall . Corporate property ownership is<br />

more important than in <strong>the</strong> o<strong>the</strong>r two zones .<br />

The native vegetation in <strong>the</strong> arid interior has been used since <strong>the</strong> mid -nineteenth<br />

century, with wool production most important in sou<strong>the</strong>rn Australia<br />

<strong>and</strong> beef most important in central <strong>and</strong> nor<strong>the</strong>rn Australia. Sown pastures are<br />

<strong>of</strong> very restricted <strong>and</strong> minor importance. The zone has no reliable growing<br />

season, droughts occur frequently <strong>and</strong> production <strong>and</strong> financial returns vary<br />

from year to year. Water supplies from artesian <strong>and</strong> sub-artesian bores are<br />

critical for continued animal production over wide areas. The beef industry is<br />

based on breeding, with some animals grown <strong>and</strong> fattened locally, but many<br />

sent elsewhere for fattening, including to <strong>the</strong> flooded natural pastures <strong>of</strong> <strong>the</strong><br />

Channel country in western Queensl<strong>and</strong>.<br />

The wool industry is based almost entirely on grazing Merinos on native<br />

pastures for medium quality wool. Properties are large (5 000 to more than<br />

100 000 ha, with 5 000 to 20 000 sheep ) <strong>and</strong>, due to wide fluctuations in pasture<br />

yield <strong>and</strong> quality, stocking rates are low (one sheep to 2–40 ha). Wool production<br />

levels are satisfactory, but lambing percentages are <strong>of</strong>ten low in <strong>the</strong> harsh


Australian grassl<strong>and</strong>s 351<br />

environment. Despite this, most operations are breeding flocks. In times <strong>of</strong><br />

high cereal prices <strong>the</strong>re is some cropping on <strong>the</strong> higher rainfall margins <strong>of</strong> <strong>the</strong><br />

zone, but animal products are <strong>the</strong> major source <strong>of</strong> income.<br />

The tropical grazing l<strong>and</strong>s have a reliable summer growing season <strong>and</strong><br />

winter dry season . Pasture growth is rapid during <strong>the</strong> early growing season<br />

<strong>and</strong> herbage quality is high, but later drops to low levels; animals gain weight<br />

during <strong>the</strong> growing season <strong>and</strong> lose in <strong>the</strong> dry season. Beef production is <strong>the</strong><br />

only major l<strong>and</strong> use. Initially all cattle were Bos taurus breeds (especially<br />

Shorthorn); now almost all are Bos indicus or <strong>the</strong>ir crosses, which are better<br />

adapted, with greater resistance to heat stress, stronger resistance to ticks ,<br />

increased foraging ability <strong>and</strong> a higher forage intake (Frisch <strong>and</strong> Vercoe,<br />

1977; Siebert, 1982), leading to superior growth, breeding performance <strong>and</strong><br />

survival.<br />

The zone is an important source <strong>of</strong> stores for fattening elsewhere, <strong>and</strong> production<br />

<strong>of</strong> grade beef for <strong>the</strong> United States <strong>of</strong> America market has been a major<br />

outlet. In <strong>the</strong> past decade, an important trade in live cattle to sou<strong>the</strong>ast Asia has<br />

developed. This has been particularly important for beef producers in northwestern<br />

Australia , who are close to <strong>the</strong>se markets but remote from markets in<br />

Australia <strong>and</strong> also from abattoirs.<br />

The tropical grazing l<strong>and</strong>s range from <strong>the</strong> more productive areas <strong>of</strong> coastal<br />

<strong>and</strong> central Queensl<strong>and</strong> to <strong>the</strong> remote parts <strong>of</strong> <strong>the</strong> Kimberley <strong>and</strong> Cape York<br />

Peninsula. There are major differences between <strong>the</strong>se regions. In coastal <strong>and</strong><br />

central Queensl<strong>and</strong>, <strong>the</strong> properties <strong>and</strong> herds are smaller (typically less than<br />

10 000 ha <strong>and</strong> carrying 500 to 2 000 cattle ), animal husb<strong>and</strong>ry <strong>and</strong> management<br />

inputs are greater, animal productivity is higher <strong>and</strong> <strong>the</strong> north Asian markets<br />

are important. In <strong>the</strong> remote areas, properties <strong>and</strong> herds are much larger<br />

(200 000 to 500 000 ha, with 6 000 to 8 000 cattle), animal productivity is lower<br />

<strong>and</strong> <strong>the</strong> live export, store <strong>and</strong> American markets are most important.<br />

Sown pastures are important in eastern <strong>and</strong> central Queensl<strong>and</strong>, but, apart<br />

from limited areas in <strong>the</strong> “Top End” <strong>of</strong> <strong>the</strong> Nor<strong>the</strong>rn Territory, <strong>the</strong>y are <strong>of</strong><br />

minor importance elsewhere, <strong>and</strong> cattle depend on native pastures. A number<br />

<strong>of</strong> introduced species are now naturalized (e.g. Stylosan<strong>the</strong>s spp., Cenchrus ciliaris<br />

). The use <strong>of</strong> feed supplements (particularly urea-based ones) is widespread.<br />

Cereal cropping is important in central <strong>and</strong> sou<strong>the</strong>rn Queensl<strong>and</strong> <strong>and</strong> is sometimes<br />

integrated with animal production in ley pasture rotation s.<br />

Wheat-sheep zone<br />

The wheat-sheep zone has a climate <strong>and</strong> topography that generally allows<br />

regular cropping <strong>of</strong> grains in addition to <strong>the</strong> grazing <strong>of</strong> sheep <strong>and</strong> cattle on a<br />

more intensive basis than in <strong>the</strong> pastoral zone. Rainfall is generally adequate<br />

for a range <strong>of</strong> pasture species, usually in a crop-pasture rotation . Farms are<br />

much smaller than those in <strong>the</strong> pastoral zone but larger than those in <strong>the</strong> high<br />

rainfall zone.


352<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

This zone <strong>of</strong> intermediate rainfall extends from sou<strong>the</strong>astern Queensl<strong>and</strong><br />

(500–750 mm annual rainfall) through <strong>the</strong> slopes <strong>and</strong> plains <strong>of</strong> New South<br />

Wales (300–600 mm), nor<strong>the</strong>rn Victoria (300–550 mm) <strong>and</strong> sou<strong>the</strong>rn South<br />

Australia (250–500 mm), <strong>and</strong> includes part <strong>of</strong> southwestern Australia (250–<br />

700 mm). The most important crops are wheat, barley, oats, grain legumes,<br />

pulses <strong>and</strong> oilseeds, with sorghum important in <strong>the</strong> nor<strong>the</strong>rn areas. Merino<br />

wool growing (medium fibre diameter), fat lamb <strong>and</strong> beef production are <strong>the</strong><br />

major animal industries. Both crop <strong>and</strong> animal products are important income<br />

sources <strong>and</strong> <strong>the</strong> balance between l<strong>and</strong> uses depends largely on relative financial<br />

returns; in recent years <strong>the</strong>re has been an increase in crops <strong>and</strong> a large decrease<br />

in wool. The more reliable seasonal conditions than in <strong>the</strong> pastoral zone <strong>and</strong><br />

<strong>the</strong> flexibility <strong>of</strong> multiple income sources leads to more stable income. Family<br />

owned farms dominate in this zone.<br />

Ley farming systems , where a pasture phase <strong>of</strong> two to five years is alternated<br />

with a crop phase <strong>of</strong> one to three years, were widely adopted in sou<strong>the</strong>rn<br />

areas after <strong>the</strong> Second <strong>World</strong> War. The short -term pastures are important for<br />

improving soil fertility <strong>and</strong> providing disease breaks for subsequent crops , as<br />

well as animal production. Almost all pasture plants are annuals, reflecting<br />

both <strong>the</strong> length <strong>of</strong> <strong>the</strong> growing season <strong>and</strong> <strong>the</strong> ease <strong>of</strong> removing <strong>the</strong>m for <strong>the</strong><br />

cropping phase. Subterranean clover (Trifolium subterraneum ) is widely used<br />

on <strong>the</strong> acidic soils <strong>and</strong> annual medics (Medicago spp.) on more alkaline soils<br />

in drier areas. These pastures provide both high quality grazing for animals<br />

<strong>and</strong> improved soil structure <strong>and</strong> increased soil nitrogen for utilization by<br />

crops. However, as discussed later, productivity <strong>of</strong> <strong>the</strong>se legume pastures has<br />

declined. This has led to some farmers switching to continuous cropping using<br />

grain legumes <strong>and</strong> fertilizer to supply nitrogen, minimum tillage to maintain<br />

soil physical conditions, alternation <strong>of</strong> cereals with grain legumes, pulses <strong>and</strong><br />

oilseeds for disease control , <strong>and</strong> herbicides for weed control.<br />

Feedlots (where cattle are confined in yards <strong>and</strong> completely h<strong>and</strong> or mechanically<br />

fed to attain high levels <strong>of</strong> production) has become important in Australia<br />

in <strong>the</strong> last 30 years. There are about 800 accredited feedlots with a capacity <strong>of</strong><br />

900 000 head. They are mostly in Queensl<strong>and</strong> <strong>and</strong> New South Wales <strong>and</strong> serve<br />

both <strong>the</strong> domestic <strong>and</strong> export markets (especially Japan). Cattle which previously<br />

would have been grass fed are finished on a diet <strong>of</strong> grain for 30 to 300<br />

days (but most commonly 90–120 days) depending on <strong>the</strong> market.<br />

High rainfall zone<br />

This zone forms <strong>the</strong> greater part <strong>of</strong> <strong>the</strong> coastal belt <strong>and</strong> adjacent tablel<strong>and</strong>s <strong>of</strong><br />

<strong>the</strong> three eastern mainl<strong>and</strong> states, small areas in sou<strong>the</strong>astern South Australia<br />

<strong>and</strong> southwestern Western Australia, <strong>and</strong> <strong>the</strong> whole <strong>of</strong> Tasmania. Rainfall is<br />

summer -dominant or spread throughout <strong>the</strong> year in Queensl<strong>and</strong> <strong>and</strong> nor<strong>the</strong>rn<br />

New South Wales, <strong>and</strong> winter -dominant in sou<strong>the</strong>rn areas. Higher rainfall ,<br />

steeper topography, more adequate surface water <strong>and</strong> greater humidity make


Australian grassl<strong>and</strong>s 353<br />

this zone less suitable than <strong>the</strong> wheat-sheep zone for grain-based cropping,<br />

but more suitable for grazing <strong>and</strong> growing o<strong>the</strong>r crops , but <strong>the</strong>re has been an<br />

increase in cereal growing with new cultivars in recent years. These wetter areas<br />

have a longer growing season than <strong>the</strong> o<strong>the</strong>r zones <strong>and</strong> pasture improvement<br />

is widespread, with Trifolium subterraneum <strong>and</strong>, in <strong>the</strong> wetter areas, T. repens<br />

<strong>and</strong> Lolium perenne as important species.<br />

Production <strong>of</strong> wool, prime lambs <strong>and</strong> beef are important, <strong>and</strong> all three are<br />

carried out on some properties, giving increased stability <strong>of</strong> income. Farm sizes<br />

range from small, <strong>of</strong>ten part-time operations, to large enterprises <strong>of</strong> more than<br />

5 000 ha. In contrast to <strong>the</strong> pastoral <strong>and</strong> wheat belt farms , where medium quality<br />

wool dominates, fine wool production is more important in <strong>the</strong>se wetter areas.<br />

Dairying is limited to areas with a long growing season (or irrigation) for<br />

<strong>the</strong> production <strong>of</strong> high quality pastures. Victoria <strong>and</strong> New South Wales are <strong>the</strong><br />

major dairy producing states. Although <strong>the</strong> feeding <strong>of</strong> concentrates is increasing,<br />

production is pasture -based <strong>and</strong> farms consist almost entirely <strong>of</strong> sown<br />

pastures. Income is derived from milk sales for whole milk consumption <strong>and</strong><br />

manufacturing <strong>and</strong> sales <strong>of</strong> surplus cattle . Most dairy farms are operated by<br />

<strong>the</strong>ir owners, with <strong>the</strong> family providing most <strong>of</strong> <strong>the</strong> labour. There have been<br />

massive changes in <strong>the</strong> dairy industry during <strong>the</strong> past 30 years, with fewer<br />

farms <strong>and</strong> farmers <strong>and</strong> large increases in production per cow <strong>and</strong> per hectare.<br />

Average herd size has increased to 150 head, with some herds <strong>of</strong> more than<br />

1 000 cows.<br />

NATURAL VEGETATION<br />

Despite <strong>the</strong> amount <strong>of</strong> pasture development , native herbage remains <strong>the</strong> base<br />

<strong>of</strong> a significant portion <strong>of</strong> <strong>the</strong> grazing industry. There have been a number <strong>of</strong><br />

classifications <strong>and</strong> descriptions <strong>of</strong> <strong>the</strong> Australian vegetation (e.g. Leeper, 1970;<br />

Carnahan, 1989; Thackway <strong>and</strong> Cresswell, 1995). Moore (1970) classified<br />

<strong>the</strong> Australian grazing l<strong>and</strong>s into 13 groups on <strong>the</strong> basis <strong>of</strong> climate, <strong>the</strong><br />

characteristics <strong>and</strong> height <strong>of</strong> <strong>the</strong> major grasses (tall : >90 cm; mid : 45–90 cm;<br />

short :


354<br />

Figure 9.2<br />

Natural vegetation zones <strong>of</strong> Australia .<br />

SOURCE: Adapted from Moore, 1970.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 9.1<br />

Tropical tall -grass community dominated by Themeda tri<strong>and</strong>ra in nor<strong>the</strong>ast<br />

Queensl<strong>and</strong>.<br />

J.G. McIVOR


Australian grassl<strong>and</strong>s 355<br />

Figure 9.3<br />

Extent <strong>of</strong> grassl<strong>and</strong>s in Australia .<br />

in <strong>the</strong> nor<strong>the</strong>rn Kimberley region <strong>of</strong> Western Australia, <strong>the</strong> “Top End” <strong>of</strong> <strong>the</strong><br />

Nor<strong>the</strong>rn Territory, <strong>and</strong> nor<strong>the</strong>rn Cape York Peninsula in Queensl<strong>and</strong>. In<br />

contrast, <strong>the</strong> tropical (nor<strong>the</strong>astern Queensl<strong>and</strong>) <strong>and</strong> subtropical (sou<strong>the</strong>astern<br />

Queensl<strong>and</strong>) tall -grass communities have a less defined <strong>and</strong> more unreliable<br />

rainfall pattern, <strong>and</strong> usually less than 750 mm annual rainfall.<br />

Within <strong>the</strong> monsoon tall -grass communities , those dominated by perennial<br />

grasses (Themeda tri<strong>and</strong>ra (Plate 9.1), Chrysopogon fallax , Sorghum plumosum ,<br />

Sehima nervosum , Heteropogon contortus <strong>and</strong> Aristida spp. ) occur on texture<br />

contrast <strong>and</strong> earth soils, <strong>and</strong> communities dominated by annuals (Sorghum spp. ,<br />

Schizachyrium fragile ) grow on s<strong>and</strong>s <strong>and</strong> skeletal soils. Heteropogon contortus<br />

is an important species in <strong>the</strong> tropical <strong>and</strong> subtropical tall -grass communities<br />

in eastern Queensl<strong>and</strong>. Originally, Themeda tri<strong>and</strong>ra was commoner, <strong>and</strong> in<br />

some areas Heteropogon contortus is decreasing <strong>and</strong> <strong>the</strong> stoloniferous grasses<br />

Bothriochloa pertusa <strong>and</strong> Digitaria didactyla are increasing. O<strong>the</strong>r important<br />

genera are Bothriochloa, Dichanthium , Chrysopogon <strong>and</strong> Aristida. Treeless<br />

grassl<strong>and</strong>s dominated by Dichanthium <strong>and</strong> Bothriochloa spp. occur on<br />

cracking clays. Tree clearing to increase herbage growth has been widespread in<br />

<strong>the</strong> subtropical tall -grass, but less important in <strong>the</strong> tropical <strong>and</strong> monsoon areas,<br />

where <strong>the</strong> yield responses are less (Mott et al., 1985).<br />

Brigalow<br />

Brigalow (Acacia harpophylla ) forest <strong>and</strong> woodl<strong>and</strong>s extend from central<br />

Queensl<strong>and</strong> to nor<strong>the</strong>rn New South Wales on medium to high fertility clays


356<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

or loams. A variety <strong>of</strong> o<strong>the</strong>r woody species also occur (Eucalyptus , Acacia,<br />

Casuarina , Terminalia ). The native understoreys are sparse <strong>and</strong> unproductive,<br />

with major grasses being species <strong>of</strong> Paspalidium , Bothriochloa , Aristida <strong>and</strong><br />

Chloris . These communities have been extensively cleared for development<br />

to exploit <strong>the</strong>ir natural fertility by sown introduced pastures (mainly based<br />

on <strong>the</strong> grasses Cenchrus ciliaris , Chloris gayana <strong>and</strong> Panicum maximum var.<br />

trichoglume ) <strong>and</strong> cropping.<br />

Xerophytic mid-grass<br />

These grassl<strong>and</strong>s form <strong>the</strong> herbaceous layer <strong>of</strong> semi -arid low woodl<strong>and</strong>s<br />

on a wide range <strong>of</strong> light soils <strong>of</strong> poor to moderate fertility in both nor<strong>the</strong>rn<br />

<strong>and</strong> sou<strong>the</strong>rn Australia . In nor<strong>the</strong>rn Australia <strong>the</strong>y occur in a subcoastal arc<br />

inl<strong>and</strong> from <strong>the</strong> tropical tall -grass communities , in Western Australia, <strong>the</strong><br />

Nor<strong>the</strong>rn Territory <strong>and</strong> Queensl<strong>and</strong> in areas with 350–750 mm annual rainfall .<br />

They have variable composition, with a range <strong>of</strong> dominant species including<br />

Aristida spp. , Chloris spp., Bothriochloa decipiens , B. ewartiana , Eriachne spp. ,<br />

Digitaria spp. <strong>and</strong> Chrysopogon fallax . Annuals are also important (Sporobolus<br />

australasicus, Aristida spp., Dactyloctenium radulans ). The sou<strong>the</strong>rn component<br />

is widespread in western New South Wales, where Danthonia spp., Chloris<br />

truncata , C. acicularis , Stipa variabilis , S. setacea , S. aristiglumis <strong>and</strong> species <strong>of</strong><br />

Eragrostis , Aristida, Enneapogon <strong>and</strong> Enteropogon are important.<br />

These woodl<strong>and</strong>s have variable tree <strong>and</strong> shrub layers. Tree clearing has been<br />

important in central <strong>and</strong> sou<strong>the</strong>rn Queensl<strong>and</strong> <strong>and</strong> New South Wales. Major<br />

increases in <strong>the</strong> density <strong>of</strong> <strong>the</strong> shrub layer (species <strong>of</strong> Eremophila , Cassia ,<br />

Dodonaea <strong>and</strong> Acacia ) have reduced grass production <strong>and</strong> threaten <strong>the</strong> viability<br />

<strong>of</strong> grazing in some areas.<br />

Temperate tall -grass<br />

Dichelachne spp. , Poa labillardieri <strong>and</strong> Themeda tri<strong>and</strong>ra give sparse grazing<br />

in <strong>the</strong> wetter forest <strong>and</strong> heath areas <strong>of</strong> eastern New South Wales, Victoria <strong>and</strong><br />

Tasmania, <strong>and</strong> also in <strong>the</strong> dry sclerophyllous forests, where Danthonia pallida is<br />

also important. These pastures are <strong>of</strong> low grazing value <strong>and</strong> animal production<br />

in <strong>the</strong>se areas depends on clearing <strong>and</strong> <strong>the</strong> development <strong>of</strong> sown pastures.<br />

Temperate short -grass<br />

Apart from small areas <strong>of</strong> treeless grassl<strong>and</strong> , <strong>the</strong>se communities form <strong>the</strong><br />

herbaceous layer <strong>of</strong> temperate woodl<strong>and</strong>s growing on a range <strong>of</strong> soils<br />

extending from sou<strong>the</strong>rn Queensl<strong>and</strong> through New South Wales <strong>and</strong> Victoria<br />

to sou<strong>the</strong>ast South Australia , with o<strong>the</strong>r areas near Adelaide, in Tasmania<br />

<strong>and</strong> in <strong>the</strong> southwest <strong>of</strong> Western Australia. Annual rainfall varies from 400 to<br />

650 mm, with summer dominance in <strong>the</strong> north <strong>and</strong> winter dominance in <strong>the</strong><br />

south. These woodl<strong>and</strong>s were among <strong>the</strong> first areas used for domestic livestock<br />

<strong>and</strong> have been extensively modified by clearing , grazing , fertilizer application


J.G. McIVOR<br />

Australian grassl<strong>and</strong>s 357<br />

<strong>and</strong> <strong>the</strong> introduction <strong>of</strong> exotic species. They were originally composed <strong>of</strong><br />

taller, warm-season grasses (Themeda tri<strong>and</strong>ra , T. avenacea , Stipa bigeniculata ,<br />

S. aristiglumis , Poa labillardieri ) but with higher grazing pressures since<br />

European settlement <strong>the</strong>se have been replaced by short , cool-season species<br />

(Danthonia spp., Stipa variabilis , Chloris spp.) <strong>and</strong> exotic annuals (Hordeum<br />

leporinum , Bromus spp. , Trifolium spp., Medicago spp., Erodium spp. <strong>and</strong><br />

Arcto<strong>the</strong>ca calendula ).<br />

Sub-alpine sodgrass<br />

Small areas <strong>of</strong> this community occur as treeless grassl<strong>and</strong>s or <strong>the</strong> understorey<br />

<strong>of</strong> subalpine woodl<strong>and</strong>s on acid soils with annual rainfall above 750 mm in <strong>the</strong><br />

sou<strong>the</strong>astern highl<strong>and</strong>s. The principal grasses are Poa spp. , Danthonia nudiflora<br />

<strong>and</strong> Themeda tri<strong>and</strong>ra . Historically, <strong>the</strong>se grassl<strong>and</strong>s were used for summer<br />

grazing , <strong>of</strong>ten after burning during early summer, but grazing has declined as<br />

emphasis is now placed on water supply, tourism <strong>and</strong> conservation .<br />

Saltbush-xerophytic mid -grass<br />

These communities are <strong>of</strong>ten treeless <strong>and</strong> are characterized by chenopod<br />

shrubs, usually less than one metre tall , from <strong>the</strong> genera Atriplex , Maireana ,<br />

Sclerolaena , Rhagodia <strong>and</strong> Enchylaena . They are important in New South<br />

Wales, South Australia (Plate 9.2) <strong>and</strong> Western Australia, with smaller amounts<br />

in Queensl<strong>and</strong> <strong>and</strong> <strong>the</strong> Nor<strong>the</strong>rn Territory in areas with 125 to 400 mm<br />

rainfall . The space between <strong>the</strong> shrubs is covered with annual grasses <strong>and</strong> forbs<br />

Plate 9.2<br />

Saltbush community in South Australia .


358<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

after rain – in <strong>the</strong> south <strong>the</strong>y are Danthonia caespitosa , Stipa variabilis , Chloris<br />

truncata <strong>and</strong> species <strong>of</strong> Cal<strong>and</strong>rinia , Ptilotus <strong>and</strong> Sclerolaena. In <strong>the</strong> north,<br />

Enneapogon spp., Eragrostis spp., Aristida spp. <strong>and</strong> Dactyloctenium radulans<br />

are important. Grazing animals show marked preferences for different species in<br />

<strong>the</strong>se communities. Studies in sou<strong>the</strong>rn New South Wales (Leigh <strong>and</strong> Mulham,<br />

1966a,b, 1967) showed animals prefer green grasses <strong>and</strong> forbs, <strong>the</strong>n dry grass<br />

<strong>and</strong> forbs, followed by annual <strong>and</strong> short -lived perennial chenopods, with <strong>the</strong><br />

perennial Atriplex <strong>and</strong> Maireana shrubs least preferred. The perennial saltbush<br />

plants confer stability to <strong>the</strong> soils <strong>and</strong> vegetation <strong>and</strong> serve as an important<br />

drought reserve ; during droughts , saltbush may be a major part <strong>of</strong> <strong>the</strong> diet. The<br />

combination <strong>of</strong> drought <strong>and</strong> overgrazing has led to loss <strong>of</strong> saltbush, with <strong>the</strong><br />

palatable Atriplex <strong>and</strong> Maireana species disappearing.<br />

Acacia shrub–short -grass<br />

Acacia shrubl<strong>and</strong>s are widespread in arid Australia on lighter textured infertile<br />

soils in all states except Victoria. Mulga (Acacia aneura ) is <strong>the</strong> major shrub,<br />

but o<strong>the</strong>r Acacia, Cassia <strong>and</strong> Eremophila species are also important, plus<br />

chenopods in sou<strong>the</strong>rn areas. These shrubs provide important “top feed” <strong>and</strong><br />

mulga in particular is lopped or pushed over to provide feed for stock during<br />

droughts . The herbage layer is dominated by annual <strong>and</strong> short -lived perennial<br />

grasses <strong>and</strong> forbs. The principal grasses are Eragrostis spp., Monacha<strong>the</strong>r<br />

paradoxus , Eriachne spp. , Aristida contorta , Thyridolepsis mitchelliana , Stipa<br />

spp. , Neurachne spp. <strong>and</strong> Enneapogon spp. Common forbs are species <strong>of</strong><br />

Calotis, Helipterum <strong>and</strong> Ptilotus .<br />

Plate 9.3<br />

Acacia nilotica thicket <strong>and</strong> seedlings (foreground) in a Mitchell grass<br />

community.<br />

J.G. McIVOR


Australian grassl<strong>and</strong>s 359<br />

Animal production depends on <strong>the</strong> herbage layer, <strong>the</strong> composition <strong>of</strong> which<br />

varies widely, depending on <strong>the</strong> timing <strong>of</strong> <strong>the</strong> unreliable rainfall in <strong>the</strong>se arid<br />

areas. Winter rain produces a flush <strong>of</strong> ephemerals with forbs (particularly<br />

members <strong>of</strong> <strong>the</strong> Asteraceae) prominent; summer rain favours perennial <strong>and</strong><br />

annual grasses <strong>and</strong> is responsible for <strong>the</strong> bulk <strong>of</strong> <strong>the</strong> herbage.<br />

Xerophytic tussockgrass<br />

Communities dominated by Mitchell grass (Astrebla species ) are widespread<br />

(40 million hectares) on heavy, cracking clay plains <strong>of</strong> inl<strong>and</strong> nor<strong>the</strong>rn<br />

Australia , particularly in Queensl<strong>and</strong>. Many <strong>of</strong> <strong>the</strong>se are true grassl<strong>and</strong>s,<br />

with no trees, but large areas also have scattered trees <strong>and</strong> shrubs. Some<br />

areas have been invaded by <strong>the</strong> exotic tree Acacia nilotica (see Plate 9.3).<br />

The perennial Astrebla plants provide stability <strong>and</strong> drought reserve feed, but<br />

animal production is closely related to <strong>the</strong> growth <strong>of</strong> short -lived, nutritious<br />

inter-tussock species, mainly annual grasses (particularly Iseilema spp. , but<br />

also Dactyloctenium spp. <strong>and</strong> Brachyachne convergens ) <strong>and</strong> forbs (species<br />

<strong>of</strong> Boerhavia , Sida , Portulaca <strong>and</strong> Ipomoea ). Cattle can gain weight on dry<br />

annual herbage, but lose weight when depending on dry Mitchell grass . O<strong>the</strong>r<br />

perennial grasses may also be important – Panicum decompositum , Aristida<br />

latifolia , Eragrostis spp., Bothriochloa spp. , Dichanthium spp. , Eulalia aurea<br />

<strong>and</strong> Chrysopogon fallax .<br />

The Mitchell grass l<strong>and</strong>s are <strong>the</strong> most productive <strong>of</strong> <strong>the</strong> semi -arid <strong>and</strong> arid<br />

grazing l<strong>and</strong>s in Australia . They have been stable, withst<strong>and</strong>ing prolonged<br />

heavy grazing, although <strong>the</strong>re is concern about invasion by Aristida latifolia<br />

in some areas.<br />

Xerophytic hummockgrass<br />

These communities – characterized by perennial species <strong>of</strong> Plectrachne <strong>and</strong><br />

Triodia (“spinifex ”) – occupy large areas <strong>of</strong> s<strong>and</strong>y soils with annual rainfalls <strong>of</strong><br />

200 to 400 mm, <strong>and</strong> shallow skeletal soils in higher rainfall areas. Plectrachne<br />

<strong>and</strong> Triodia plants form hummocks or mounds from 1 to 6 m in diameter,<br />

<strong>and</strong> <strong>the</strong>re are sparse populations <strong>of</strong> shrubs <strong>and</strong> small trees (Acacia spp. <strong>and</strong><br />

Eucalyptus spp.) throughout much <strong>of</strong> <strong>the</strong> area. These areas have low <strong>and</strong> erratic<br />

rainfall <strong>and</strong> include waterless deserts <strong>of</strong> little or no value for grazing . Although<br />

<strong>the</strong> spinifex grasses are generally unpalatable to stock except after fire , <strong>and</strong><br />

<strong>the</strong> mature herbage is very low quality, <strong>the</strong>se l<strong>and</strong>s provide important grazing<br />

(mainly for breeding cattle ), especially if o<strong>the</strong>r, more palatable, perennial<br />

species (e.g. Chrysopogon fallax , Eragrostis spp.) are present. After rain, annual<br />

grasses <strong>and</strong> forbs provide valuable grazing.<br />

SOWN PASTURES<br />

Pasture improvement in Australia has been <strong>and</strong> continues to be, based on <strong>the</strong><br />

use <strong>of</strong> selected, exotic species, with particular emphasis on legumes. Many


360<br />

6 000<br />

4 000<br />

2 000<br />

0<br />

(a) Queensl<strong>and</strong><br />

Area <strong>of</strong><br />

pasture<br />

Area<br />

fertilized<br />

1950 1960 1970 1980 1990<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Figure 9.4<br />

Changes since 1950 in <strong>the</strong> area <strong>of</strong> sown pastures <strong>and</strong> <strong>the</strong> area <strong>of</strong> pasture fertilized.<br />

(a) Queensl<strong>and</strong>. This area is mainly tropical pastures <strong>and</strong> includes most <strong>of</strong> <strong>the</strong> tropical<br />

pastures sown in Australia . (b) Remainder <strong>of</strong> Australia. This area is almost all temperate<br />

pastures <strong>and</strong> occurs mainly in Western Australia, New South Wales, Victoria <strong>and</strong> South<br />

Australia.<br />

SOURCE: Data from <strong>the</strong> Australian Bureau <strong>of</strong> Statistics <strong>and</strong> ABARE.<br />

30 000<br />

20 000<br />

10 000<br />

(b) Australia - remainder<br />

<strong>of</strong> <strong>the</strong>se have been intentional introductions, but o<strong>the</strong>rs are local strains <strong>of</strong><br />

accidental introductions, such as many Trifolium subterraneum cultivars.<br />

Although <strong>the</strong> native communities described in <strong>the</strong> section on natural vegetation<br />

still remain important, introduction <strong>of</strong> exotic pasture species commenced<br />

at or soon after European settlement. The poor quality <strong>of</strong> pastures near Sydney<br />

was soon recognized <strong>and</strong> requests for pasture legumes <strong>and</strong> grasses were made<br />

before 1800, <strong>and</strong> lucerne <strong>and</strong> clovers were among <strong>the</strong> non-indigenous plants<br />

growing in <strong>the</strong> Colony in 1803 (Davidson <strong>and</strong> Davidson, 1993). By <strong>the</strong> early<br />

twentieth century, many <strong>of</strong> <strong>the</strong> pasture plants currently used were already<br />

being exploited, although on a much smaller scale than at present (Lolium perenne<br />

, L. multiflorum , Dactylis glomerata , Medicago sativa , Trifolium repens ,<br />

T. pratense , T. fragiferum , Paspalum dilatatum , Panicum maximum ) (Davies,<br />

1951). In addition, <strong>the</strong>re had been a number <strong>of</strong> accidental introductions that<br />

were to be <strong>of</strong> great importance, although <strong>the</strong>ir potential had not been recognized<br />

(e.g. Trifolium subterranean, annual Medicago spp., Cenchrus ciliaris <strong>and</strong><br />

Stylosan<strong>the</strong>s humilis ).<br />

There have been considerable differences between <strong>the</strong> development <strong>of</strong><br />

temperate <strong>and</strong> tropical pastures <strong>and</strong> <strong>the</strong>se are considered separately in <strong>the</strong> following<br />

sections.<br />

Figure 9.4 shows <strong>the</strong> changes in <strong>the</strong> area <strong>of</strong> sown pastures from 1950<br />

onwards for Queensl<strong>and</strong> (mainly tropical pastures) <strong>and</strong> <strong>the</strong> remainder <strong>of</strong><br />

Australia (mainly temperate pastures).<br />

Temperate pastures<br />

During <strong>the</strong> first 50 years <strong>of</strong> <strong>the</strong> twentieth century, much information was<br />

ga<strong>the</strong>red on temperate pasture species <strong>and</strong> <strong>the</strong>ir growth requirements: A.W.<br />

Howard had actively promoted subterranean clover; <strong>the</strong> superphosphate<br />

responses by pastures had been documented; <strong>and</strong> <strong>the</strong> role <strong>of</strong> trace elements<br />

0<br />

1950 1960 1970 1980 1990


Australian grassl<strong>and</strong>s 361<br />

had been discovered. Until <strong>the</strong> 1920s, emphasis was on identifying suitable<br />

species, but <strong>the</strong>reafter <strong>the</strong> search shifted to strains <strong>and</strong> cultivars within<br />

species.<br />

These developments provided <strong>the</strong> base for sown pastures but <strong>the</strong> depression<br />

<strong>of</strong> <strong>the</strong> 1930s <strong>and</strong> drought <strong>and</strong> war during <strong>the</strong> 1940s meant large-scale<br />

pasture improvement (<strong>the</strong> “sub <strong>and</strong> super” revolution based on widespread<br />

sowing <strong>of</strong> Trifolium subterraneum <strong>and</strong> <strong>the</strong> application <strong>of</strong> superphosphate)<br />

was delayed until <strong>the</strong> early 1950s (Cr<strong>of</strong>ts, 1997). During this period, <strong>the</strong>re<br />

were high or record prices for wool, wheat, butter <strong>and</strong> beef; myxoma virus<br />

dramatically reduced <strong>the</strong> rabbit population; seasons were favourable; <strong>and</strong> a<br />

period <strong>of</strong> rapid <strong>and</strong> sustained pasture development commenced, which continued<br />

until <strong>the</strong> late 1960s (Figure 9.4).<br />

As Figure 9.4 shows, <strong>the</strong>re has been little change in <strong>the</strong> area <strong>of</strong> temperate<br />

sown pastures since 1970. This decline in pasture development has had a<br />

number <strong>of</strong> causes – periods <strong>of</strong> unpr<strong>of</strong>itable prices for wool, beef <strong>and</strong> wheat;<br />

continuing cost-price pressures on farmers; major widespread droughts ;<br />

rapid increase in <strong>the</strong> price <strong>of</strong> superphosphate during <strong>the</strong> oil crisis in <strong>the</strong> 1970s;<br />

removal <strong>of</strong> <strong>the</strong> superphosphate bounty; <strong>and</strong> reduced income tax deductions<br />

for pasture improvement (Cr<strong>of</strong>ts, 1997).<br />

Fertilizer application has been a key component <strong>of</strong> pasture development in<br />

temperate areas <strong>and</strong> approximately 90 percent <strong>of</strong> <strong>the</strong> fertilizer used is superphosphate.<br />

Superphosphate was tested on pastures in sou<strong>the</strong>rn Australia early<br />

in <strong>the</strong> twentieth century <strong>and</strong> its impacts on pasture <strong>and</strong> animal production<br />

documented (e.g. Trumble <strong>and</strong> Donald, 1938). Figure 9.4 shows that during<br />

<strong>the</strong> 1950s <strong>the</strong> area <strong>of</strong> pasture treated with fertilizer was similar to <strong>the</strong> total<br />

sown pasture area, but <strong>the</strong> proportion fertilized <strong>the</strong>n declined to 80 percent<br />

during <strong>the</strong> 1960s, to 56 percent in <strong>the</strong> 1970s <strong>and</strong> 46 percent in <strong>the</strong> 1980s. This<br />

decline has continued since, <strong>and</strong> a recent ABARE survey <strong>of</strong> grain-producing<br />

farms found that less than 10 percent <strong>of</strong> <strong>the</strong> pastures were fertilized (Hooper<br />

<strong>and</strong> Helati, 1999).<br />

The results <strong>of</strong> a number <strong>of</strong> surveys <strong>of</strong> commercial sown pastures were<br />

summarized by Wilson <strong>and</strong> Simpson (1993). There were numerous reports<br />

<strong>of</strong> “legume decline ” covering Trifolium subterraneum , Medicago species <strong>and</strong><br />

Trifolium repens in both <strong>the</strong> high-rainfall <strong>and</strong> wheat-sheep zones . Weedy<br />

annual grasses <strong>and</strong> forbs were prominent in both zones. Many reasons<br />

have been suggested for <strong>the</strong> legume decline, including reduced phosphate<br />

application; o<strong>the</strong>r nutrient deficiencies; soil acidity <strong>and</strong> associated nutrient<br />

imbalances; increased nitrogen levels; insect pests; diseases; <strong>and</strong> increased<br />

grazing pressure (Wilson <strong>and</strong> Simpson, 1993). These changes have had serious<br />

consequences – herbage quantity <strong>and</strong> quality have declined, reducing animal<br />

production, while in <strong>the</strong> cropping areas, where <strong>the</strong> legume-based pastures<br />

had maintained soil fertility, soil nitrogen levels have fallen <strong>and</strong> soil structure<br />

deteriorated.


362<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Tropical pastures<br />

Development <strong>of</strong> sown pastures was slower in <strong>the</strong> tropical areas, but <strong>the</strong> success<br />

<strong>of</strong> introduced pastures in sou<strong>the</strong>rn Australia during <strong>the</strong> 1950s provided a model<br />

for similar development in tropical Australia. A number <strong>of</strong> species had been<br />

introduced during <strong>the</strong> late nineteenth <strong>and</strong> early twentieth centuries, ei<strong>the</strong>r<br />

intentionally (e.g. Panicum maximum , Chloris gayana <strong>and</strong> Brachiaria mutica )<br />

or accidentally (e.g. Stylosan<strong>the</strong>s humilis <strong>and</strong> Cenchrus ciliaris (Plate 9.4)).<br />

Plant introduction <strong>and</strong> evaluation has continued, with initial emphasis on<br />

grasses, but increasing attention has since been paid to legumes, especially<br />

after a major expansion <strong>of</strong> research in <strong>the</strong> 1950s (Eyles <strong>and</strong> Cameron, 1985).<br />

Most <strong>of</strong> <strong>the</strong> tropical pastures have been sown in Queensl<strong>and</strong>, with smaller<br />

areas in nor<strong>the</strong>rn New South Wales, <strong>the</strong> Nor<strong>the</strong>rn Territory <strong>and</strong> Western<br />

Australia . Figure 9.6 shows a slow increase in <strong>the</strong> area <strong>of</strong> sown pasture in<br />

Queensl<strong>and</strong> until 1960, followed by a rapid expansion in pasture sowings<br />

from <strong>the</strong> 1960s onwards, about ten years after a similar increase in temperate<br />

Australia. This expansion continued until <strong>the</strong> 1990s, apart from decreases in<br />

<strong>the</strong> late 1990s <strong>and</strong> late 1980s associated with disease outbreaks in Stylosan<strong>the</strong>s<br />

humilis st<strong>and</strong>s, poor returns for animal products <strong>and</strong> expansion <strong>of</strong> cropping<br />

areas (Walker <strong>and</strong> Weston, 1990). About 70 percent <strong>of</strong> <strong>the</strong> area sown to<br />

pasture has been sown solely to grasses. These grass -only pastures are mainly<br />

on fertile soils, particularly those which previously supported brigalow<br />

(Acacia harpophylla ) <strong>and</strong> gidgee (A. cambagei ). In contrast, sown grass-<br />

Plate 9.4<br />

Buffel grass (Cenchrus ciliaris ), <strong>the</strong> most widely planted grass in semi -arid tropical<br />

areas. Buffel grass can support high levels <strong>of</strong> animal production, but has also<br />

been listed as an environmental weed.<br />

J.G. McIVOR


J.G. McIVOR<br />

Australian grassl<strong>and</strong>s 363<br />

Plate 9.5<br />

Sward <strong>of</strong> Stylosan<strong>the</strong>s hamata growing under trees in <strong>the</strong> Nor<strong>the</strong>rn Territory.<br />

legume pastures are more important on less fertile soils (Walker <strong>and</strong> Weston,<br />

1990). A special development has been <strong>the</strong> use <strong>of</strong> shallow ponds to grow<br />

flood -tolerant grasses (Brachiaria mutica , Hymenachne amplexicaulis <strong>and</strong><br />

Echinochloa polystachya ) to provide green herbage during <strong>the</strong> dry season .<br />

In contrast to sou<strong>the</strong>rn Australia , fertilizer application has been much less<br />

important in tropical pasture development . This partly reflects <strong>the</strong> use <strong>of</strong><br />

grass -only pastures on fertile soils <strong>and</strong> also <strong>the</strong> importance <strong>of</strong> <strong>the</strong> Stylosan<strong>the</strong>s<br />

species (see Plate 9.5) with <strong>the</strong>ir low phosphorus requirements <strong>and</strong> ability to<br />

grow well on soils with low available phosphorus (4–8 ppm) levels (McIvor,<br />

1984; Jones et al., 1997). As for sou<strong>the</strong>rn Australia, superphosphate dominates<br />

fertilizer usage on pasture, comprising approximately 70 percent <strong>of</strong> <strong>the</strong><br />

total fertilizer applied. However, nitrogen-fertilized grasses have important<br />

specialized roles, including pastures based on temperate species for winter<br />

production on some dairy farms .<br />

There have been no surveys for sown tropical pastures equivalent to those<br />

noted above in temperate areas. However, <strong>the</strong>re are problems with some<br />

sown pastures, with approximately 100 000 ha per year going out <strong>of</strong> production<br />

during <strong>the</strong> period 1986/87 to 1989/90 (Walker, 1991) due to a decline in<br />

sown species (Walker <strong>and</strong> Weston, 1990). Although grass -only pastures on<br />

fertile soils are initially very productive, this phase generally lasts only four<br />

to ten years <strong>the</strong>n plant <strong>and</strong> animal productivity declines due to reductions<br />

in available nitrogen <strong>and</strong> sometimes loss <strong>of</strong> desirable species (Myers <strong>and</strong><br />

Robbins, 1991; Jones, McDonald <strong>and</strong> Silvey, 1995).


364<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

AVAILABLE SPECIES AND CULTIVARS<br />

There are currently nearly 500 cultivars registered or where applications<br />

for plant breeders’ rights have been granted. These include fodder crops ,<br />

lawn-amenity grasses <strong>and</strong> shrub legumes, but most are pasture grasses <strong>and</strong><br />

herbaceous legumes. The cultivars come from 70 tropical <strong>and</strong> subtropical<br />

species (37 grass , 33 legume) <strong>and</strong> 60 temperate (24 grass, 36 legume) species.<br />

Not all <strong>the</strong> cultivars are still used, <strong>and</strong> only a few are important. Almost all<br />

cultivars are from introduced species, except for a few native grasses (Astrebla<br />

spp., Danthonia spp., Themeda tri<strong>and</strong>ra , Microlaena stipoides ). In addition to<br />

<strong>the</strong> registered cultivars, <strong>the</strong>re are some additional introductions that are used<br />

although not <strong>of</strong>ficially registered.<br />

SEED PRODUCTION<br />

Although pastures are grown over a wide area, seed production is restricted to<br />

much smaller areas, where <strong>the</strong>re is a reliable growing season (or irrigation is<br />

available) <strong>and</strong> also a reliably dry harvesting season. Seed production <strong>of</strong> tropical<br />

<strong>and</strong> sub-tropical species is concentrated on <strong>the</strong> east coast <strong>of</strong> Queensl<strong>and</strong> <strong>and</strong><br />

nor<strong>the</strong>rn New South Wales, with small amounts produced in <strong>the</strong> Nor<strong>the</strong>rn<br />

Territory. South Australia , Victoria <strong>and</strong> Western Australia are <strong>the</strong> major states<br />

for <strong>the</strong> production <strong>of</strong> clovers <strong>and</strong> medics, while alfalfa <strong>and</strong> temperate perennial<br />

grasses are produced in all sou<strong>the</strong>rn states. The average pasture seed production<br />

during <strong>the</strong> three years 1996–98 was 26 000 t, with most production in Victoria<br />

<strong>and</strong> South Australia (Anon., 1999).<br />

CURRENT GRASSLAND ISSUES<br />

Research<br />

Pasture development in Australia has drawn on research <strong>and</strong> experiences<br />

elsewhere, but local research has been vitally important to solve uniquely<br />

Australian problems, <strong>and</strong> Australia has developed a strong pasture research<br />

effort. Most <strong>of</strong> this research has been publicly funded. While pasture research<br />

continues to be important, <strong>the</strong> funding <strong>and</strong> level <strong>of</strong> activity have declined<br />

in recent years. Indeed, reduced funding for pasture research (by both<br />

government <strong>and</strong> industry) was rated <strong>the</strong> most severe constraint in a recent<br />

survey <strong>of</strong> threats <strong>and</strong> limitations to <strong>the</strong> use <strong>of</strong> tropical pastures (McDonald <strong>and</strong><br />

Clements, 1999).<br />

Not only has <strong>the</strong> amount <strong>of</strong> pasture research changed in recent years, <strong>the</strong><br />

research approach has also altered. Research stations now have a smaller role<br />

<strong>and</strong> a greater proportion <strong>of</strong> <strong>the</strong> research is conducted on private properties,<br />

some <strong>of</strong> it with producers participating in <strong>the</strong> design <strong>and</strong> conduct <strong>of</strong> experiments,<br />

<strong>and</strong> interpretation <strong>of</strong> <strong>the</strong> results.<br />

A major part <strong>of</strong> <strong>the</strong> research effort has been <strong>the</strong> development <strong>of</strong> new cultivars<br />

(plant introduction, breeding, characterization <strong>and</strong> evaluation ), <strong>and</strong> major<br />

national programmes were established for grasses <strong>and</strong> legumes (Pearson, 1994).


Australian grassl<strong>and</strong>s 365<br />

These studies have included identifying suitable species for new or difficult<br />

environments or for changed farming systems , <strong>and</strong> also <strong>the</strong> development <strong>of</strong><br />

superior strains within existing commercial species. Although cultivar development<br />

has been predominantly publicly funded, private industry plays an<br />

important role in temperate perennial species.<br />

While <strong>the</strong> development <strong>of</strong> new cultivars continues, <strong>the</strong>re is now increased<br />

research effort on pasture management <strong>and</strong> <strong>the</strong> role <strong>of</strong> pastures in farming<br />

systems . The importance <strong>of</strong> high quality pastures for increased animal production<br />

continues, but <strong>the</strong>re are a number <strong>of</strong> “new” issues (see next section) that<br />

have become important areas for research. These include increased water use<br />

by deep rooted species (e.g. Medicago sativa , Phalaris aquatica ) to dry out soil<br />

pr<strong>of</strong>iles to reduce soil salinization; <strong>the</strong> role <strong>of</strong> perennial grasses for improving<br />

soil structure <strong>and</strong> organic matter levels; <strong>and</strong> <strong>the</strong> role <strong>of</strong> pastures in cereal rotations,<br />

both as sources <strong>of</strong> nitrogen <strong>and</strong> also for weed control in areas where herbicide-resistant<br />

weeds have become a problem. This research is complemented<br />

by <strong>the</strong> commercial evaluation <strong>of</strong> recently released cultivars <strong>and</strong> identification<br />

<strong>of</strong> <strong>the</strong> best ways to incorporate pastures into farming systems.<br />

Management <strong>of</strong> grassl<strong>and</strong>s<br />

Management <strong>of</strong> grassl<strong>and</strong>s aims for a desirable composition that gives<br />

both high production (including crop products as well as animal products)<br />

<strong>and</strong> maintenance <strong>of</strong> <strong>the</strong> resources . The desirable composition varies both<br />

temporally <strong>and</strong> spatially <strong>and</strong>, given <strong>the</strong> range <strong>of</strong> requirements, a mix <strong>of</strong> species<br />

is almost always needed.<br />

There are management problems in all pasture zones . In <strong>the</strong> high rainfall <strong>and</strong><br />

wheat-sheep zones, low nutritive value <strong>of</strong> herbage over <strong>the</strong> summer dry season<br />

<strong>and</strong> low herbage availability in <strong>the</strong> autumn <strong>and</strong> winter are important limitations<br />

to animal production (Wilson <strong>and</strong> Simpson, 1993). Productive legumes<br />

are important both to provide nitrogen for associate grasses (<strong>and</strong> following<br />

crops ) <strong>and</strong> for <strong>the</strong>ir high herbage quality, but, as noted earlier, legume decline<br />

is a major issue.<br />

In <strong>the</strong> pastoral zone, major limitations to animal production are herbage<br />

quality <strong>and</strong> quantity, <strong>and</strong>, in wool-growing areas, vegetable contamination <strong>of</strong><br />

wool by seeds <strong>and</strong> fruiting structures <strong>of</strong> problem species. High grazing pressures<br />

have led to <strong>the</strong> replacement <strong>of</strong> palatable species by species that avoid high<br />

grazing pressure by <strong>the</strong>ir unpalatable, fibrous or ephemeral nature. This leads<br />

to low herbage quantity (particularly in sou<strong>the</strong>rn <strong>and</strong> central Australia , where<br />

grasses are replaced by inedible shrubs) <strong>and</strong> poor quality (particularly in nor<strong>the</strong>rn<br />

Australia, where pastures are dominated by C4 grasses <strong>and</strong> <strong>the</strong>re is a long<br />

dry season ). Native shrubs (e.g. species <strong>of</strong> Cassia , Dodonea <strong>and</strong> Eromophila )<br />

are a major problem in sou<strong>the</strong>rn <strong>and</strong> central Australia, while, in <strong>the</strong> nor<strong>the</strong>rn<br />

areas exotic species are also important (e.g. Acacia nilotica (Plate 9.3),<br />

Cryptostegia gr<strong>and</strong>iflora (Plate 9.6), Prosopis spp. , Parkinsonia aculeata <strong>and</strong>


366<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 9.6<br />

Exotic woody weeds in nor<strong>the</strong>rn Australia . Dense st<strong>and</strong> <strong>of</strong> Cryptostegia<br />

gr<strong>and</strong>iflora , with some climbing over trees along a watercourse.<br />

Ziziphus mauritiana ). Tothill <strong>and</strong> Gillies (1992) made a major assessment <strong>of</strong> <strong>the</strong><br />

condition <strong>of</strong> native pastures in nor<strong>the</strong>rn Australia. They divided <strong>the</strong> pastures<br />

into three classes – sustainable (main desirable species maintaining >75 percent<br />

dominance); deteriorating (increased presence (>25 percent) <strong>of</strong> undesirable<br />

pasture species <strong>and</strong>/or woody weeds); <strong>and</strong> degraded (predominance <strong>of</strong> undesirable<br />

species). Overall, only 56 percent <strong>of</strong> pasturel<strong>and</strong>s were rated sustainable,<br />

with 32 percent deteriorating <strong>and</strong> 12 percent degraded.<br />

In sown tropical pastures both legume dominance <strong>and</strong> lack <strong>of</strong> legume persistence<br />

are problems in different regions. In <strong>the</strong> semi -arid tropics, where some<br />

stylo (Stylosan<strong>the</strong>s spp.) pastures are now nearly 30 years old, stylo dominance<br />

(particularly Stylosan<strong>the</strong>s scabra ) is causing some concern. The problem is<br />

worst on infertile soils, where stylos have been over-sown into native pastures.<br />

In stylo-grass pastures, animal preference for grass is very strong during <strong>the</strong><br />

early wet season (Gardener, 1980) leading to heavy selective grazing <strong>of</strong> <strong>the</strong><br />

grasses, which are susceptible at this stage <strong>of</strong> <strong>the</strong>ir growth (Hodgkinson et al.,<br />

1989; Mott et al., 1992). A number <strong>of</strong> measures have been recommended to<br />

reduce <strong>the</strong> stylo dominance – fire , pasture spelling, sowing grazing-tolerant<br />

grasses, <strong>and</strong> raising soil phosphorus levels (McIvor, Noble <strong>and</strong> Orr, 1998).<br />

In <strong>the</strong> drier subtropics, legume persistence remains a problem, <strong>and</strong> <strong>the</strong> success<br />

<strong>of</strong> legume-based pastures has been more variable. Weeds continue to be a<br />

problem. During <strong>the</strong> past decade, unpalatable Sporobolus species (pyramidalis,<br />

natalensis, indicus var. major) have increased <strong>and</strong> extended inl<strong>and</strong>, <strong>and</strong> Siam<br />

weed (Chromolaena odorata ) has been recorded for <strong>the</strong> first time.<br />

J.G. McIVOR


Australian grassl<strong>and</strong>s 367<br />

A number <strong>of</strong> approaches to pasture management have been suggested.<br />

Westoby, Walker <strong>and</strong> Noy-Meir (1989) proposed a state-<strong>and</strong>-transition model<br />

<strong>of</strong> vegetation change, where vegetation exists in a number <strong>of</strong> more-or-less<br />

stable states, <strong>and</strong> moves between <strong>the</strong>se under <strong>the</strong> influence <strong>of</strong> management<br />

<strong>and</strong> climatic factors. State-<strong>and</strong>-transition models have been developed for<br />

<strong>the</strong> major native grassl<strong>and</strong> communities in nor<strong>the</strong>rn Australia (McIvor <strong>and</strong><br />

Scanlan, 1994; Stockwell et al., 1994; Orr, Paton <strong>and</strong> McIntyre, 1994; Hall<br />

et al., 1994; McArthur, Chamberlain <strong>and</strong> Phelps, 1994; Jones <strong>and</strong> Burrows,<br />

1994) <strong>and</strong> provide a basis for management by highlighting opportunities to<br />

make desirable changes, <strong>and</strong> also <strong>the</strong> risks <strong>of</strong> undesirable changes occurring if<br />

management is not proactive. Jones (1992) applied state-<strong>and</strong>-transition models<br />

to sown pastures <strong>of</strong> Macroptilium atropurpureum <strong>and</strong> Setaria sphacelata .<br />

These pastures can be converted to Digitaria didactyla <strong>and</strong> Axonopus affinis<br />

with sustained heavy grazing ; resting from grazing reverses this conversion,<br />

but becomes progressively less effective <strong>the</strong> longer <strong>the</strong> heavy grazing is<br />

maintained.<br />

Drawing on a model proposed by Spain, Pereira <strong>and</strong> Gauldron (1985) for<br />

<strong>the</strong> evaluation <strong>of</strong> tropical pastures, Kemp (1991) developed a “pasture management<br />

envelope”, where management aims to maintain pastures within upper<br />

<strong>and</strong> lower limits for productive stable pastures (proportion <strong>of</strong> key species,<br />

e.g. legumes) <strong>and</strong> for animal performance (forage on <strong>of</strong>fer). Legume contents<br />

below <strong>the</strong> lower limit are unlikely to make important contributions to feed<br />

supply <strong>and</strong> nitrogen fixation, while, above <strong>the</strong> upper limit, pastures are likely<br />

to be unstable <strong>and</strong> prone to invasion by nitrophilous weeds. Above <strong>the</strong> upper<br />

limit to forage on <strong>of</strong>fer, much <strong>of</strong> <strong>the</strong> herbage would not be utilized, while,<br />

below <strong>the</strong> lower limit, herbage intake (<strong>and</strong> possibly animal survival) would<br />

suffer, pasture growth would be reduced <strong>and</strong> reduced ground cover would<br />

expose <strong>the</strong> soil to erosion. Where pastures are outside this envelope <strong>of</strong> limiting<br />

conditions, management needs to be altered to move <strong>the</strong> pasture into <strong>the</strong> envelope.<br />

This will <strong>of</strong>ten involve changing seasonal grazing pressure (e.g. resting<br />

tropical pastures during <strong>the</strong> early wet season; heavy spring grazing <strong>of</strong> cloverbased<br />

pastures). Fire is also used in some areas. While <strong>the</strong>re is little use <strong>of</strong> fire<br />

with sown pastures, it is important for native pastures, particularly in tropical<br />

areas to remove accumulated dry herbage, alter grazing behaviour <strong>and</strong> control<br />

woody weeds.<br />

In Australia in recent years <strong>the</strong>re has been widespread interest in grazing<br />

systems , with considerable debate over <strong>the</strong> merits <strong>of</strong> systems based on short<br />

grazing periods <strong>and</strong> long rest periods (e.g. short-duration grazing , time-control<br />

grazing , cell grazing ) compared with continuous grazing . A number <strong>of</strong> producers<br />

have enthusiastically adopted <strong>the</strong>se systems <strong>and</strong> report large benefits,<br />

both for financial performance <strong>and</strong> for sustainability <strong>of</strong> resources (McCosker,<br />

1994; McArthur, 1998; Gatenby, 1999), although o<strong>the</strong>r producers have not had<br />

positive results (e.g. Waugh, 1997). In contrast to <strong>the</strong> positive benefits reported


368<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

from <strong>the</strong>se grazing systems, reviews <strong>of</strong> grazing systems research conclude that<br />

continuous grazing is no worse than rotational grazing , <strong>and</strong> may be better for<br />

animal production (Norton, 1998). Norton (1998) considered reasons for this<br />

divergence <strong>of</strong> views, <strong>and</strong> concluded that differences were related to uniformity<br />

<strong>of</strong> utilization – this was constant, even in small experimental paddocks,<br />

irrespective <strong>of</strong> grazing system, so <strong>the</strong> experiments showed no benefit for rotational<br />

grazing. However, utilization is <strong>of</strong>ten not uniform in large commercial<br />

paddocks, <strong>and</strong> more even utilization is achieved when <strong>the</strong>y are subdivided for<br />

rotational systems, leading to production benefits.<br />

Resource issues <strong>and</strong> rehabilitation<br />

Despite <strong>the</strong> success <strong>of</strong> much pasture development <strong>the</strong>re are major resource issues<br />

in Australian grassl<strong>and</strong>s. Soil degradation is estimated to cost Australian agriculture<br />

more than one billion dollars annually in lost rural production (Williams,<br />

1999). While soil erosion continues to be a problem, it is not as severe in many<br />

areas as during <strong>the</strong> early to mid -twentieth century, but salinity, accelerated acidification<br />

<strong>and</strong> tree dieback have emerged as important grassl<strong>and</strong> problems in <strong>the</strong> last<br />

twenty years.<br />

Whilst some soils are naturally acid, <strong>the</strong>re has been accelerated acidification<br />

<strong>of</strong> soils under legume pastures, both in temperate (e.g. Williams, 1980; Ridley,<br />

Helyar <strong>and</strong> Slattery, 1990) <strong>and</strong> in tropical areas (Noble, Cannon <strong>and</strong> Muller,<br />

1997). A number <strong>of</strong> processes contribute to this: removal <strong>of</strong> plant (particularly<br />

hay making) <strong>and</strong> animal products; net transfer <strong>of</strong> nutrients as dung <strong>and</strong> urine<br />

within paddocks; leaching <strong>of</strong> nitrate (<strong>and</strong> associated cations) below <strong>the</strong> root<br />

zone; <strong>and</strong> increases in soil organic matter <strong>and</strong> cation exchange capacity . The<br />

use <strong>of</strong> acid-tolerant species may provide a partial solution to <strong>the</strong> problem, but<br />

overcoming long-term acidification will require <strong>the</strong> use <strong>of</strong> lime.<br />

The removal <strong>of</strong> trees <strong>and</strong> <strong>the</strong>ir replacement by crops <strong>and</strong> annual pastures<br />

has brought about major changes to <strong>the</strong> hydrological cycle. Dryl<strong>and</strong> salinity<br />

now affects about 2.5 million hectares <strong>of</strong> l<strong>and</strong>, <strong>and</strong> <strong>the</strong>re is potential for<br />

this to increase to more than 12 million hectares (Williams, 1999). Western<br />

Australia <strong>and</strong> Victoria are <strong>the</strong> states most affected, but New South Wales, South<br />

Australia <strong>and</strong> Queensl<strong>and</strong> also have increasing areas. Reversing <strong>the</strong>se changes<br />

to <strong>the</strong> hydrological cycle will require deeper-rooted plants to reduce recharge<br />

by transpiring water before it enters <strong>the</strong> groundwater, <strong>and</strong> plants to increase<br />

discharge <strong>and</strong> lower <strong>the</strong> watertable. Deep-rooted perennial pasture species<br />

(e.g. Medicago sativa <strong>and</strong> Phalaris aquatica ) have a role (e.g. Ridley et al., 1997;<br />

McCallum et al., 1998; Pitman, Cox <strong>and</strong> Belloti, 1998), but major tree replanting<br />

will probably be required, <strong>and</strong> has begun in some areas.<br />

Native tree dieback (progressive, usually protracted, dying back <strong>of</strong> branches,<br />

<strong>of</strong>ten ending in tree death) has become important, <strong>and</strong> is most severe in long settled,<br />

intensively farmed areas, such as <strong>the</strong> New Engl<strong>and</strong> Tablel<strong>and</strong> <strong>of</strong> New South<br />

Wales. Repeated defoliation by leaf eating insects is one <strong>of</strong> many factors involved


Australian grassl<strong>and</strong>s 369<br />

TABLE 9.2<br />

Impact <strong>of</strong> pasture development on <strong>the</strong> number <strong>of</strong> species recorded in experimental pastures near<br />

Charter Towers, north Queensl<strong>and</strong>. The values are <strong>the</strong> means <strong>of</strong> three years (1990–92) <strong>and</strong> two<br />

sites where <strong>the</strong> treatments have been fully imposed for at least 4 years.<br />

Pasture<br />

% sown<br />

species<br />

Number <strong>of</strong> species<br />

Sown Native Exotic Total<br />

Lightly grazed, live trees, native pasture 0.1 1.0 27.9 1.4 30.3<br />

Heavily grazed, live trees, fertilized over-sown legumegrass<br />

pasture<br />

86.1 4.2 15.0 1.7 20.9<br />

Heavily grazed, trees cleared, fertilized legume-grass<br />

pasture sown on cultivated seedbed<br />

93.2 4.5 11.4 0.5 16.4<br />

SOURCE: From McIvor, 1998.<br />

in <strong>the</strong> tree dieback syndrome, <strong>and</strong> sown pastures are implicated in <strong>the</strong> higher<br />

levels <strong>of</strong> insect defoliation. Two mechanisms are suggested. Firstly, <strong>the</strong> fertilized<br />

improved pastures improve <strong>and</strong> increase <strong>the</strong> supply <strong>of</strong> food for insect larvae <strong>and</strong><br />

support higher populations <strong>of</strong> soil invertebrates than native pastures (King <strong>and</strong><br />

Hutchison, 1983). Secondly, <strong>the</strong> higher soil nutrient levels also improve <strong>the</strong> feed<br />

quality <strong>and</strong> attractiveness <strong>of</strong> <strong>the</strong> tree leaves for adult insects. The combination<br />

<strong>of</strong> larger populations <strong>and</strong> attractive foliage greatly increases <strong>the</strong> grazing <strong>of</strong> trees<br />

by insects. A survey <strong>of</strong> Queensl<strong>and</strong> properties found increased severity <strong>of</strong> tree<br />

dieback symptoms on properties where more than 50 percent <strong>of</strong> <strong>the</strong> area was<br />

improved pasture (Wylie et al., 1993).<br />

Biodiversity in grassl<strong>and</strong>s<br />

The impacts <strong>of</strong> pasture development on biodiversity are still being debated.<br />

While new species have been added, <strong>and</strong> become naturalized in many cases, at<br />

least some native species have been disadvantaged. However, as surveys show,<br />

many o<strong>the</strong>r species are present in sown pastures.<br />

Pasture development has a number <strong>of</strong> components, all <strong>of</strong> which may influence<br />

biodiversity – tree clearing , sowing introduced species, fertilizer application,<br />

increased grazing pressures , herbicide use, <strong>and</strong> irrigation. McIvor (1998)<br />

examined some <strong>of</strong> <strong>the</strong>se (tree clearing, superphosphate application, sown<br />

species, cultivation , <strong>and</strong> stocking rates ), both separately <strong>and</strong> in combination,<br />

at two sites in north Queensl<strong>and</strong>. The individual management treatments all<br />

affected diversity, but <strong>the</strong> responses varied with season, site <strong>and</strong> measurement<br />

scale. The density <strong>of</strong> native species decreased with pasture sowing <strong>and</strong> cultivation,<br />

but increased at high stocking rates, <strong>and</strong> with tree killing at one <strong>of</strong> <strong>the</strong><br />

sites. When <strong>the</strong> treatments were combined, <strong>the</strong>re was a decline in native species<br />

as intensity <strong>of</strong> development increased <strong>and</strong> <strong>the</strong> extra sown species were insufficient<br />

to prevent a decline in <strong>the</strong> total number <strong>of</strong> species (Table 9.2).<br />

Environmental management<br />

While much has been learned about <strong>the</strong> development <strong>and</strong> use <strong>of</strong> pastures,<br />

pasture management does not exist in isolation <strong>and</strong> must be combined with<br />

o<strong>the</strong>r aspects <strong>of</strong> property management if we are to have sustainable use <strong>of</strong> our


370<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

grassl<strong>and</strong>s. Both on- <strong>and</strong> <strong>of</strong>f-farm impacts <strong>and</strong> l<strong>and</strong>scape - <strong>and</strong> regional-scale<br />

relationships need to be considered. McIntyre, McIvor <strong>and</strong> MacLeod (2000)<br />

have outlined a set <strong>of</strong> principles for <strong>the</strong> grazing <strong>of</strong> eucalypt woodl<strong>and</strong>s that<br />

provide guidelines for achieving environmental sustainability. These need<br />

to be combined with o<strong>the</strong>r aspects <strong>of</strong> property <strong>and</strong> enterprise management<br />

<strong>and</strong> regional planning to give both pr<strong>of</strong>itability <strong>and</strong> conservation <strong>of</strong> natural<br />

resources . Such management will not be easy with a variable <strong>and</strong> changing<br />

climate <strong>and</strong> variable <strong>and</strong> <strong>of</strong>ten low prices for products, but will be needed<br />

for sustainable l<strong>and</strong> use. The strong development <strong>of</strong> both <strong>the</strong> L<strong>and</strong>care<br />

movement <strong>and</strong> Integrated Catchment Management groups over <strong>the</strong> last decade<br />

provides some hope. These groups <strong>of</strong> producers <strong>and</strong> o<strong>the</strong>r concerned people<br />

have recognized that some problems are beyond <strong>the</strong> capacity <strong>of</strong> individual<br />

producers, <strong>and</strong> have combined <strong>the</strong>ir resources to conduct activities that aim to<br />

improve resource management.<br />

SUSTAINABLE PASTURE MANAGEMENT : LEARNING FROM THE PAST,<br />

MANAGING FOR THE FUTURE<br />

Pasture management will always be complex, as we are dealing with mixed<br />

plant populations that are defoliated to varying degrees growing in a widely<br />

varying climate. There have been great increases in <strong>the</strong> underst<strong>and</strong>ing <strong>of</strong><br />

<strong>the</strong> limits to pasture growth <strong>and</strong> production under Australian conditions,<br />

<strong>and</strong> continuing changes to farming systems in <strong>the</strong> past <strong>and</strong> <strong>the</strong> future will<br />

continue to throw up new challenges requiring continuing new knowledge <strong>and</strong><br />

adaptations. Higher production levels have been a major <strong>the</strong>me for research<br />

<strong>and</strong> commercial development , but <strong>the</strong>re is an increasing realization that<br />

stability <strong>and</strong> optimization <strong>of</strong> production systems within an inherently variable<br />

environment are objectives that are preferable to an exclusive emphasis on<br />

maximizing productivity .<br />

European farming in Australia commenced with attempts to transfer<br />

European practices to <strong>the</strong> new environment. However, as <strong>the</strong> limitations <strong>of</strong><br />

<strong>the</strong> new environment were discovered, major changes were made to farming<br />

systems as more was learned about <strong>the</strong> constraints <strong>and</strong> ways to overcome <strong>the</strong>m.<br />

This can be illustrated by historical changes in <strong>the</strong> wheat industry (Donald, 1965;<br />

Malcolm, Sale <strong>and</strong> Egan, 1996). Initially, poorly adapted, late maturing English<br />

varieties were grown each year, depleting soil nutrient levels, so that by <strong>the</strong> end<br />

<strong>of</strong> <strong>the</strong> nineteenth century yields declined to half those originally achieved from<br />

virgin soils. Major changes were made early in <strong>the</strong> twentieth century: superphosphate<br />

began to be widely used, overcoming <strong>the</strong> widespread phosphorus<br />

deficiency ; long fallows (more than one year) were adopted, increasing water<br />

supply <strong>and</strong> nitrogen availability from <strong>the</strong> breakdown <strong>of</strong> organic matter; <strong>and</strong> <strong>the</strong><br />

early maturing variety Federation was bred for Australian conditions. Yields<br />

returned to levels achieved from virgin soils. However, <strong>the</strong> long fallows meant<br />

soils were bare for long periods <strong>and</strong> erosion (by both water <strong>and</strong> wind) was a


Australian grassl<strong>and</strong>s 371<br />

major problem <strong>and</strong> <strong>the</strong> soil organic matter levels fell, reducing both nitrogen<br />

supply <strong>and</strong> soil stability, so that <strong>the</strong>re was no fur<strong>the</strong>r yield improvement after<br />

<strong>the</strong> 1920s. After 1950, ley -farming rotations were widely used, with legume<br />

pastures improving both <strong>the</strong> soil nitrogen status <strong>and</strong> physical condition . This<br />

resulted in spectacular yield increases, but, as mentioned elsewhere, <strong>the</strong> legumes<br />

have become less effective. With <strong>the</strong> decline <strong>of</strong> legume pastures <strong>and</strong> low<br />

prices for animal products, some farmers switched from ley-pasture rotation s<br />

to continuous cropping using grain legumes <strong>and</strong> nitrogen fertilizer to provide<br />

nitrogen, no- or minimum-tillage to maintain soil structure, <strong>and</strong> herbicides<br />

for weed control . Herbicide-resistant plants have developed in a number <strong>of</strong><br />

troublesome weeds (e.g. Avena spp., Lolium rigidum <strong>and</strong> Raphanus raphanistrum)<br />

<strong>and</strong> <strong>the</strong>re are doubts if such a system can maintain soil organic matter<br />

<strong>and</strong> physical properties (Malcolm, Sale <strong>and</strong> Egan, 1996). A pasture phase in <strong>the</strong><br />

farming systems may be necessary to overcome <strong>the</strong>se problems.<br />

Importance <strong>of</strong> legumes<br />

Nitrogen is a major limiting nutrient in grassl<strong>and</strong>s, but nitrogen fertilizer use<br />

on grassl<strong>and</strong>s has been low in Australia due to <strong>the</strong> high costs relative to <strong>the</strong><br />

value <strong>of</strong> livestock products, <strong>and</strong> <strong>the</strong>re are also problems with soil acidification<br />

<strong>and</strong> nitrate contamination <strong>of</strong> water supplies. Use <strong>of</strong> nitrogen fertilizers remains<br />

restricted to situations <strong>of</strong>fering high financial returns, such as for winter feed<br />

supplies on dairy farms in <strong>the</strong> subtropics.<br />

The productive use <strong>of</strong> legumes has been a major success story <strong>of</strong> Australian<br />

farming. Prior to <strong>the</strong> rapid period <strong>of</strong> pasture development that commenced in<br />

<strong>the</strong> 1950s (Figure 9.4) many pastures were sparse, heavily infested with rabbits ,<br />

contained inferior annual species, <strong>and</strong> soils were badly eroded. In <strong>the</strong> cereal<br />

growing areas, dust storms occurred regularly, removing much <strong>of</strong> <strong>the</strong> surface<br />

soil, <strong>and</strong> soil organic matter levels had fallen, reducing soil stability <strong>and</strong> lowering<br />

soil nitrogen levels (Malcolm, Sale <strong>and</strong> Egan, 1996). Temperate pastures<br />

based on Trifolium <strong>and</strong> Medicago species, with application <strong>of</strong> superphosphate,<br />

provided greatly increased animal <strong>and</strong> crop production <strong>and</strong> improved soil fertility<br />

from <strong>the</strong> 1950s (Donald, 1965). However, as outlined above, <strong>the</strong> effectiveness<br />

<strong>of</strong> this system has declined. Despite this, legume-based pastures continue<br />

to provide production benefits, even if at a lower level than in <strong>the</strong> past.<br />

The experiences in sou<strong>the</strong>rn Australia provided a model for nor<strong>the</strong>rn<br />

Australia <strong>and</strong> optimistic estimates were made <strong>of</strong> <strong>the</strong> area suitable for sown<br />

pastures in <strong>the</strong> tropics, such as 50–60 million hectares in Queensl<strong>and</strong> (Davies<br />

<strong>and</strong> Eyles, 1965; Ebersohn <strong>and</strong> Lee, 1972; Weston et al., 1981), although later<br />

estimates reduced this to 22 million hectares (Walker <strong>and</strong> Weston, 1990). Initial<br />

hopes for twining legumes (e.g. Macroptilium atroprupureum <strong>and</strong> Desmodium<br />

spp.) were not fulfilled, although some use <strong>of</strong> <strong>the</strong>se species continues. Their<br />

elevated growing points are sensitive to grazing (Clements, 1989) <strong>and</strong> <strong>the</strong>se<br />

species lack persistence under heavy grazing. There are successful developments


372<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 9.7<br />

Leucaena leucocephala , a high quality productive shrub legume capable <strong>of</strong><br />

providing high levels <strong>of</strong> animal production.<br />

based on Stylosan<strong>the</strong>s species <strong>and</strong> Leucaena leucocephala (Plate 9.7) <strong>and</strong> <strong>the</strong><br />

area sown to <strong>the</strong>se species continues to increase. A number <strong>of</strong> o<strong>the</strong>r tropical<br />

legumes have smaller but still successful roles e.g. Aeschynomene americana ,<br />

Chamaecrista rotundifolia , Centrosema pascuorum <strong>and</strong> Vigna parkeri . There<br />

is an increasing dem<strong>and</strong> for ley legumes for cropping systems in <strong>the</strong> tropics<br />

<strong>and</strong> sub-tropics. The cropping industry is situated mainly on clay soils which<br />

previously supported grassl<strong>and</strong> or brigalow . However years <strong>of</strong> continuous<br />

cropping has depleted soil fertility <strong>and</strong> yields <strong>and</strong> grain protein content s are<br />

falling. There is an urgent need to restore <strong>the</strong> fertility <strong>and</strong> legume-leys (e.g.<br />

Clitoria ternatea ) can play a key role (Dalal et al., 1991).<br />

While <strong>the</strong>re have been positive changes from <strong>the</strong> use <strong>of</strong> legumes, such as<br />

increased production <strong>and</strong> soil improvement , legumes can also have negative<br />

impacts, such as accelerated soil acidification. There will be a continuing need for<br />

research <strong>and</strong> development to overcome problems that arise, as well as continuing<br />

management – using legumes is not simply a matter <strong>of</strong> selecting <strong>and</strong> sowing a<br />

species <strong>and</strong> expecting it to survive <strong>and</strong> produce with little management.<br />

Role <strong>of</strong> native pastures<br />

Much <strong>of</strong> <strong>the</strong> research (<strong>and</strong> commercial) activity with pastures has concentrated<br />

on exotic ra<strong>the</strong>r than native species. Although <strong>the</strong> possible value <strong>of</strong> native species<br />

was realized along with <strong>the</strong> need for scientific study <strong>of</strong> <strong>the</strong>ir characteristics <strong>and</strong><br />

value (Davies, 1951), <strong>the</strong> widespread conclusion was<br />

J.G. McIVOR


Australian grassl<strong>and</strong>s 373<br />

“our native plants have nei<strong>the</strong>r actual or potential value as artificially sown species … <strong>the</strong>y are<br />

incapable <strong>of</strong> high production, <strong>of</strong> response to high levels <strong>of</strong> fertility. They are adapted … to poor<br />

soils, to light grazing …<strong>and</strong> drier climatic conditions …” Donald, 1970.<br />

However, few pastures contain only sown species <strong>and</strong> some native species<br />

have survived – in <strong>the</strong> strongly winter dominant rainfall areas <strong>the</strong>re are few, but<br />

where <strong>the</strong>re is a summer rainfall component (Wilson <strong>and</strong> Simpson, 1993), or in<br />

<strong>the</strong> tropics where rainfall is summer dominant, important native species remain<br />

in sown pastures <strong>and</strong> many areas have not been sown.<br />

While <strong>the</strong> conclusion <strong>of</strong> Donald (1970) remains generally true for high fertility<br />

conditions, <strong>the</strong> increases in soil fertility following <strong>the</strong> widespread use <strong>of</strong><br />

subterranean clover <strong>and</strong> superphosphate have not been sustained , <strong>and</strong> many<br />

areas have “poor soils, drier conditions” where <strong>the</strong> native species are adapted.<br />

Many early comparisons <strong>of</strong> native <strong>and</strong> introduced species were biased (Wilson<br />

<strong>and</strong> Simpson, 1993) <strong>and</strong> more recent assessments have concluded that <strong>the</strong>re<br />

is a role for native species as <strong>the</strong>y have valuable agronomic features <strong>and</strong> can<br />

provide good quality herbage at times <strong>of</strong> <strong>the</strong> year (Archer <strong>and</strong> Robinson, 1988;<br />

Robinson <strong>and</strong> Archer, 1988). The native pastures will generally not support <strong>the</strong><br />

high stocking rates that fertilized, introduced pastures can support. However,<br />

at low to moderate rates, <strong>the</strong>ir presence <strong>and</strong> contribution can be exploited <strong>and</strong><br />

<strong>the</strong>y will have a continuing role in animal production.<br />

Environmental weeds<br />

Although exotic pasture species have provided large economic benefits to<br />

Australia , as a number <strong>of</strong> pasture plants have become naturalized increasing<br />

attention is being given to <strong>the</strong>ir impacts on <strong>the</strong> environment. A number have<br />

been listed as environmental weeds, i.e. species that invade native communities<br />

<strong>and</strong> cause changes to <strong>the</strong> vegetation structure (species composition <strong>and</strong><br />

abundance) or <strong>the</strong> function <strong>of</strong> ecosystems , or both. Two features important<br />

in pasture species are common in <strong>the</strong>se environmental weeds – <strong>the</strong> ability<br />

to invade or colonize new or unsown areas, <strong>and</strong> <strong>the</strong> ability to dominate<br />

vegetation where <strong>the</strong>y occur. In a recent list <strong>of</strong> environmental weeds in<br />

Australia, 11 <strong>of</strong> <strong>the</strong> 55 major <strong>and</strong> significant ones were pasture species; <strong>of</strong><br />

<strong>the</strong> top 18, six were pasture species – Brachiaria mutica , Cenchrus ciliaris ,<br />

Echinochloa polystachya , Glyceria maxima , Hymenachne amplexicaulis<br />

<strong>and</strong> Pennisetum polystachyon (Humphries, Groves <strong>and</strong> Mitchell, 1991).<br />

Where conditions are suitable (e.g. little competing vegetation, suitable soil<br />

fertility <strong>and</strong> grazing regimes) all <strong>the</strong>se species are capable <strong>of</strong> forming almost<br />

monospecific st<strong>and</strong>s. Under <strong>the</strong> recently developed National Weeds Strategy ,<br />

<strong>the</strong> import entry protocols for assessing <strong>the</strong> weed potential <strong>of</strong> all proposed<br />

new plant imports have been streng<strong>the</strong>ned to prevent <strong>the</strong> introduction <strong>of</strong><br />

plants with weed potential. However, <strong>the</strong>re are a number <strong>of</strong> pasture species<br />

now well established or naturalized that are not currently considered weeds,<br />

but might well be in <strong>the</strong> future.


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FUTURE<br />

Products from pastures <strong>and</strong> grassl<strong>and</strong>s have made great contributions to <strong>the</strong><br />

Australian economy – during <strong>the</strong> nineteenth century <strong>the</strong> native grassl<strong>and</strong>s<br />

supported <strong>the</strong> grazing industries (particularly wool) that, toge<strong>the</strong>r with<br />

gold, made Australia prosperous. During <strong>the</strong> twentieth century, temperate<br />

pastures based on subterranean clover <strong>and</strong> o<strong>the</strong>r legumes, <strong>and</strong> to a lesser extent<br />

tropical pastures, raised production levels <strong>and</strong> financial returns to previously<br />

unachievable levels.<br />

Future pasture management will involve concerns for both productivity<br />

<strong>and</strong> <strong>the</strong> environment both on- <strong>and</strong> <strong>of</strong>f-property. As a recent assessment <strong>of</strong><br />

<strong>the</strong> sustainability <strong>of</strong> Australian agriculture has shown, long-term productivity<br />

has been increasing for all broadacre <strong>and</strong> dairy industries, but resource issues<br />

– sodic <strong>and</strong> acid soils, native vegetation , salinity – have also become important<br />

<strong>and</strong> increasing problems (SCARM, 1998). Pastures, both sown <strong>and</strong> native, will<br />

continue to be important for both production <strong>and</strong> environmental impacts. As<br />

discussed earlier, rates <strong>of</strong> pasture development are closely linked to seasonal<br />

conditions <strong>and</strong> <strong>the</strong> pr<strong>of</strong>itability <strong>of</strong> farming enterprises, <strong>and</strong> this situation is<br />

likely to continue. Costs <strong>of</strong> pasture development <strong>and</strong> maintenance have been<br />

<strong>and</strong> remain a major concern to growers. A recent survey (Clements, 1996;<br />

McDonald <strong>and</strong> Clements, 1999) found that <strong>of</strong> 21 possible constraints to <strong>the</strong><br />

future use <strong>of</strong> tropical pasture plants, farmers rated uncertain commodity prices,<br />

high cost <strong>of</strong> establishment <strong>and</strong> costs <strong>of</strong> maintaining improved pastures among<br />

<strong>the</strong> top four.<br />

Agriculture is declining in relative importance in <strong>the</strong> economy <strong>and</strong> will continue<br />

to do so, but it will remain an important contributor to both <strong>the</strong> national<br />

<strong>and</strong> regional economies for many years. <strong>Grassl<strong>and</strong>s</strong> <strong>and</strong> pastures will remain<br />

important – in many areas <strong>the</strong>y provide <strong>the</strong> only means <strong>of</strong> producing a valuable<br />

product where <strong>the</strong>re are no viable alternatives. In arable areas, grassl<strong>and</strong>s will<br />

continue to have a role in crop rotations for increasing nitrogen supply, disease<br />

breaks <strong>and</strong> weed control as herbicide resistance reduces <strong>the</strong> effectiveness <strong>of</strong><br />

herbicides.<br />

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Seibert, B.D. 1982. Research findings in relation to future needs. Proceedings <strong>of</strong><br />

<strong>the</strong> Australian Society <strong>of</strong> Animal Production, 14: 191–196.<br />

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grasses <strong>and</strong> legumes. pp. 1153–1155, in: Proceedings <strong>of</strong> <strong>the</strong> 15th International<br />

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Society <strong>of</strong> Grassl<strong>and</strong> Science.<br />

Stockwell, T.G.H., Andison, R.T., Ash, A.J., Bellamy, J.A. & Dyer, R.M.<br />

1994. Development <strong>of</strong> state <strong>and</strong> transition models for pastoral management<br />

<strong>of</strong> <strong>the</strong> golden beard grass <strong>and</strong> limestone grass pasture l<strong>and</strong>s <strong>of</strong> NW Australia .<br />

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Regionalisation for Australia . Canberra ACT, Australia: Australian Nature<br />

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Research Institute Research Paper, No. 16.


The Russian Steppe 381<br />

Chapter 10<br />

The Russian Steppe<br />

Joseph G. Boonman <strong>and</strong> Sergey S. Mikhalev<br />

SUMMARY<br />

The steppe crosses <strong>the</strong> Russian plain, south <strong>of</strong> <strong>the</strong> taiga , penetrating deep into<br />

Siberia. It comprises three main types , which run in roughly parallel b<strong>and</strong>s from<br />

east to west: forest steppe in <strong>the</strong> north, through steppe, to semi -desert steppe in<br />

<strong>the</strong> south. Within <strong>the</strong>se belts, zones <strong>of</strong> temporary inundation on floodplains or in<br />

zones <strong>of</strong> internal drainage provide valuable hay l<strong>and</strong>. The steppe was increasingly<br />

ploughed for crops during <strong>the</strong> twentieth century; initially crops were rotated with<br />

naturally regenerated grassl<strong>and</strong> , but from mid-century cultivation was increasingly<br />

intensive. During <strong>the</strong> collective period, <strong>the</strong> emphasis was on industrial stock<br />

rearing, with housed cattle <strong>and</strong> high inputs; since decollectivization, intensive<br />

enterprises are closing for economic reasons, <strong>and</strong> systems have yet to stabilize.<br />

If ploughed l<strong>and</strong> is left undisturbed it will return naturally to steppe vegetation<br />

in six to fifteen years. Hay is very important for winter feed, <strong>and</strong> much is made<br />

from seasonally flooded meadows. Many marginal, semi-arid areas <strong>of</strong> <strong>the</strong> steppe<br />

have been put under crops, but are not economically viable; much <strong>of</strong> <strong>the</strong> cereals<br />

so produced are fed to livestock, but grain yields are very low <strong>and</strong> yield no more<br />

livestock products than would natural grassl<strong>and</strong>, but at far higher cost. Marginal<br />

cropl<strong>and</strong> should return to grass .<br />

INTRODUCTION<br />

North <strong>of</strong> <strong>the</strong> Black <strong>and</strong> Caspian Seas, straddling both Don <strong>and</strong> Volga<br />

catchments, lies a stretch <strong>of</strong> steppe that saw some <strong>of</strong> <strong>the</strong> last horse-mounted<br />

nomadic tribes <strong>of</strong> Europe in action as late as <strong>the</strong> end <strong>of</strong> <strong>the</strong> fifteenth century.<br />

These were <strong>the</strong> Tatar <strong>of</strong> <strong>the</strong> Golden Horde. Then an equally heroic force, now<br />

<strong>of</strong> self-proclaimed free farmer-soldiers, whose mixed -farming with crop <strong>and</strong><br />

livestock was community- <strong>and</strong> family-based, later called Cossacks, emerged to<br />

hold <strong>the</strong> newly acquired frontiers <strong>of</strong> Tsarist Russia .<br />

Throughout history, <strong>the</strong> Russian steppe had been a natural boundary that<br />

deterred major civilizations or migrations from entering through its sou<strong>the</strong>rn<br />

gateways. Not physical obstacles – in fact both Don <strong>and</strong> Volga are major navigable<br />

rivers <strong>and</strong> run from north to south – but <strong>the</strong> sheer size <strong>and</strong> emptiness<br />

<strong>of</strong> country that had to be traversed effectively separated <strong>the</strong> north from <strong>the</strong><br />

south. Although in search <strong>of</strong> new granaries, ancient Greek colonization did not<br />

extend much fur<strong>the</strong>r than <strong>the</strong> coastal rims <strong>of</strong> <strong>the</strong> Black Sea. In a similar fashion,


382<br />

Figure 10.1<br />

Extent <strong>of</strong> grassl<strong>and</strong>s in <strong>the</strong> Russian Federation.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>the</strong> empires <strong>of</strong> Rome <strong>and</strong> even nearby Byzantium made very few inroads into<br />

what would develop, at <strong>the</strong> start <strong>of</strong> this millennium, into <strong>the</strong> Russian heartl<strong>and</strong>.<br />

The only, yet major, exceptions were invasions by <strong>the</strong> Huns in <strong>the</strong> fourth <strong>and</strong><br />

by <strong>the</strong> Mongols in <strong>the</strong> thirteenth century, but <strong>the</strong>se emerged from <strong>the</strong> same<br />

long stretch <strong>of</strong> steppe, near its far eastern fringe .<br />

This vast Eurasian plain – with taiga in <strong>the</strong> north, forest in <strong>the</strong> middle<br />

<strong>and</strong> <strong>the</strong> steppe as its sou<strong>the</strong>rn flank – stretches over 10 000 km from west<br />

to (south)east, from <strong>the</strong> Baltic Sea <strong>and</strong> crosses <strong>the</strong> Dnepr, Don <strong>and</strong> Volga<br />

rivers, deep into Siberia across <strong>the</strong> Urals, which convention has designated<br />

as <strong>the</strong> border between Europe <strong>and</strong> Asia (Figure 10.1). Most <strong>of</strong> <strong>the</strong> country’s<br />

farm l<strong>and</strong> is in <strong>the</strong> so-called “fertile triangle”, with its base along <strong>the</strong> western<br />

border from <strong>the</strong> Baltic to <strong>the</strong> Black Sea <strong>and</strong> that tapers eastward to <strong>the</strong><br />

sou<strong>the</strong>rn Urals, where it narrows to a strip about 400 km wide extending<br />

across <strong>the</strong> southwestern fringes <strong>of</strong> Siberia.<br />

This chapter discusses <strong>the</strong> steppe; an overall description <strong>of</strong> Russian pastures<br />

<strong>and</strong> ruminant production systems is given in <strong>the</strong> Country Pasture Pr<strong>of</strong>ile<br />

for <strong>the</strong> Russian Federation (Blagoveshchenskii et al., 2002), to be found on<br />

<strong>the</strong> FAO Grassl<strong>and</strong> Web site .<br />

THE STEPPE IN PERSPECTIVE<br />

Truly virgin steppe has become a rarity, especially west <strong>of</strong> <strong>the</strong> Urals. The<br />

last major onslaught took place in <strong>the</strong> 1950s, when huge campaigns to raise<br />

agricultural production led to 43 million hectares <strong>of</strong> steppe being sacrificed to<br />

<strong>the</strong> plough, seemingly for ever (Maslov, 1999). It virtually meant <strong>the</strong> end <strong>of</strong> <strong>the</strong><br />

virgin steppe in <strong>the</strong> Volga region, in Kazakhstan <strong>and</strong> western Siberia. The l<strong>and</strong><br />

put to <strong>the</strong> plough rivalled in size <strong>the</strong> whole <strong>of</strong> Canada’s agricultural area.<br />

As part <strong>of</strong> <strong>the</strong> collateral damage, interest in <strong>and</strong> knowledge <strong>of</strong> <strong>the</strong> steppe as<br />

a natural resource became rare in <strong>the</strong> eyes <strong>of</strong> <strong>the</strong> authorities, <strong>and</strong> faded as <strong>the</strong>


The Russian Steppe 383<br />

experts <strong>the</strong>mselves passed from <strong>the</strong> scene. Should active extensification <strong>and</strong><br />

steppe rehabilitation , <strong>of</strong> which <strong>the</strong>re is little sign at present, appear at some<br />

stage again on <strong>the</strong> agendas, it will have to draw on <strong>the</strong> old literature records,<br />

such as are being recalled in this chapter. These records are <strong>of</strong> fur<strong>the</strong>r importance<br />

as <strong>the</strong>y developed independently from scientific <strong>and</strong> managerial thinking<br />

in <strong>the</strong> West, especially in <strong>the</strong> USA , where similar vegetation types seem to have<br />

given rise to quite different approaches, both in science <strong>and</strong> in management .<br />

Recent literature from <strong>the</strong> Russian Federation on <strong>the</strong> subject is mostly related<br />

to satellite imagery <strong>and</strong> ecological modelling (Gilmanov, Parton <strong>and</strong> Ojima,<br />

1997). To avoid confusion, <strong>and</strong> because <strong>of</strong> <strong>the</strong> reliance here on older literature,<br />

<strong>the</strong> botanical names will be quoted as originally reported. Consequently, we<br />

use Euagrypyron <strong>and</strong> Agropyron repens ra<strong>the</strong>r than Elytrigia repens.<br />

Current tendencies in Russian agriculture are that <strong>the</strong> large-style arable<br />

units <strong>of</strong> <strong>the</strong> former Kolkhozy <strong>and</strong> Sovkhozy collective production units are<br />

retained as <strong>the</strong> central <strong>and</strong> collective core, mainly for cereal production, with<br />

only a little livestock held centrally. Livestock will be divorced fur<strong>the</strong>r from<br />

<strong>the</strong> collective by <strong>the</strong> kolkhozniki <strong>the</strong>mselves <strong>and</strong> become more family-based.<br />

Sooner or later, family herds will have to rely on family-run pastures, hayfields<br />

<strong>and</strong> by-products <strong>of</strong> <strong>the</strong>ir own arable operations. At present, communal <strong>and</strong><br />

public grazing resource s are used by privately owned livestock.<br />

Is history repeating itself? Grazing rights shared out by or among <strong>the</strong><br />

village community (mir) were typical <strong>of</strong> <strong>the</strong> pre-revolution era. While <strong>the</strong><br />

grazing l<strong>and</strong> – <strong>and</strong> <strong>of</strong>ten <strong>the</strong> grazing itself – was communal , livestock were<br />

family-owned. Fenced-<strong>of</strong>f grazing blocks <strong>and</strong> “ranches ” were rare. Although<br />

large l<strong>and</strong>holdings in <strong>the</strong> more prosperous agricultural regions were <strong>the</strong> rule,<br />

l<strong>and</strong>lords invariably had to cope with large resident communities <strong>of</strong> peasants<br />

<strong>and</strong> with <strong>the</strong>ir dem<strong>and</strong>s for cropl<strong>and</strong>, pasture <strong>and</strong> hay for <strong>the</strong>ir cattle in return<br />

for labour. Does <strong>the</strong> present-style Kolkhoze fulfil <strong>the</strong> role <strong>of</strong> <strong>the</strong> pre-revolution<br />

l<strong>and</strong>lord? Do peasants continue to expect to be provided for as before? Is<br />

a Russia with family-based autonomous farms still a long way <strong>of</strong>f?<br />

The Russian steppe, like many <strong>of</strong> <strong>the</strong> major natural grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> world,<br />

is a formidable natural resource. With <strong>the</strong> present l<strong>and</strong>-reform programmes<br />

following a new, <strong>of</strong>ten uncharted, course it may well be that <strong>the</strong> natural grassl<strong>and</strong><br />

<strong>and</strong>, in particular, <strong>the</strong> steppe will resume a large part <strong>of</strong> its old significance<br />

as a primary grazing resource . The Former Soviet Union (FSU)-industrialstyle<br />

Kolkhozy <strong>and</strong> Sovkhozy , with livestock housed throughout <strong>the</strong> year,<br />

have proved uneconomic <strong>and</strong> unsustainable . Family-based mixed farming with<br />

paddock grazing may develop in parallel with <strong>the</strong> current tendency <strong>of</strong> grazing<br />

<strong>the</strong> kolkhozniki herds on natural grassl<strong>and</strong> <strong>and</strong> steppe. Permanent or temporary<br />

pasture as a resource <strong>of</strong> grazing <strong>and</strong> fodder may regain prominence at <strong>the</strong><br />

expense <strong>of</strong> annual fodder <strong>and</strong> grain crop. Half <strong>of</strong> <strong>the</strong> cereal crop, it was claimed,<br />

was fed to livestock. Maize used to be grown for silage on more than 10 million<br />

hectares, <strong>of</strong>ten in areas ei<strong>the</strong>r too cold or too dry , whe<strong>the</strong>r aided or not


384<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

with supplementary irrigation. The agronomic, economic <strong>and</strong> environmental<br />

implications <strong>of</strong> <strong>the</strong>se new developments for outdoor grazing, though largely<br />

positive on balance, provide a formidable challenge.<br />

SEMANTICS<br />

Luga, senokosy i pastbishcha [meadows, hay meadows <strong>and</strong> pastures] <strong>and</strong><br />

Lugovodstvo [meadow cultivation ] are Russian terminology to emphasize<br />

<strong>the</strong> distinction commonly drawn between l<strong>and</strong> for hay or for grazing ,<br />

respectively, where <strong>the</strong> English language would simply refer to grassl<strong>and</strong> .<br />

Russian terminology tends to distinguish between “meadows” as dominated<br />

by hay-type grasses <strong>and</strong> “pastures” as utilized through grazing, whereas this<br />

distinction has little meaning in contemporary English. However, in Russian<br />

terminology, <strong>the</strong> term “meadows” (composed <strong>of</strong> mesophytes) is <strong>of</strong>ten used in<br />

contrast to “steppe” (xerophytes), <strong>and</strong> assumes significance in dry steppe l<strong>and</strong><br />

crossed by rivers, which are bordered by extensive floodplains that harbour<br />

<strong>the</strong> meadows. Meadows have a more temperate <strong>and</strong> humid climate resonance<br />

(Shennikov, 1950). Meadow <strong>and</strong> steppe are used as descriptive terms away from<br />

<strong>the</strong> l<strong>and</strong>scape or geographical zones <strong>the</strong>y represent. The continued usage in<br />

Russian <strong>of</strong> terms such as meadow steppe, desert steppe <strong>and</strong> mountain steppe<br />

add to <strong>the</strong> confusion (Gilmanov, 1995). In this chapter, grassl<strong>and</strong> is used in <strong>the</strong><br />

general sense, including steppe, whereas pasture refers to a particular field or<br />

application. Maize silage is a fodder <strong>and</strong> so are Sudan grass <strong>and</strong> alfalfa, but <strong>the</strong><br />

latter are called forages when grazed.<br />

Emphasis on hay as <strong>the</strong> principal source <strong>of</strong> fodder to see cattle through <strong>the</strong><br />

winter has been typical <strong>of</strong> Russian “grassl<strong>and</strong> ” terminology. Early mention<br />

<strong>of</strong> haymaking by <strong>the</strong> nor<strong>the</strong>rn Slavs date back to <strong>the</strong> birth <strong>of</strong> <strong>the</strong>ir civilization,<br />

around 1000 A.D. Numerous are <strong>the</strong> references in <strong>the</strong> arts to “village<br />

hay-festivals” as <strong>the</strong> entire peasant community was engaged in <strong>the</strong> process<br />

<strong>of</strong> mowing <strong>and</strong> bringing in <strong>the</strong> hay. Hay , ra<strong>the</strong>r than fodder crops , was <strong>the</strong><br />

rule. A high ratio <strong>of</strong> meadow to arable l<strong>and</strong> was essential to sustain farming<br />

(Chayanov, 1926). Fodder beet, rape <strong>and</strong> turnips were much less grown than in<br />

more Atlantic climates fur<strong>the</strong>r west. One reason was that most <strong>of</strong> <strong>the</strong> hay was<br />

derived from low-lying meadow l<strong>and</strong> that had no o<strong>the</strong>r economic use. Second,<br />

<strong>the</strong> growing season for fodder crops is ei<strong>the</strong>r too short, in <strong>the</strong> north, or too dry ,<br />

in <strong>the</strong> east <strong>and</strong> south, or both. Even alfalfa is a late arrival; it is believed to have<br />

been grown in Tajikistan <strong>and</strong> Uzbekistan before <strong>the</strong> Greco-Persian wars <strong>of</strong> <strong>the</strong><br />

sixth <strong>and</strong> fifth centuries BC; it is, however, unlikely to have reached <strong>the</strong> Volga<br />

region earlier than it did Western Europe because <strong>of</strong> <strong>the</strong> geographic northsouth<br />

isolation mentioned above.<br />

CLIMATE, VEGETATION AND SOILS<br />

Somewhat Atlantic in climate at its start near <strong>the</strong> Baltic Sea, on its way east<br />

<strong>the</strong> Eurasian plain is met by an increasing severity <strong>and</strong> length <strong>of</strong> continental


The Russian Steppe 385<br />

winters, precluding arable cropping at <strong>the</strong> eastern extreme. High latitudes <strong>and</strong><br />

absence <strong>of</strong> moderating maritime influences determine <strong>the</strong> harsh continental<br />

climate prevalent in Russia . Huge mountain ranges along <strong>the</strong> sou<strong>the</strong>rn borders<br />

<strong>and</strong> Central Asia preclude penetration <strong>of</strong> maritime tropical air masses. The<br />

Arctic Ocean acts as a snow-covered, frozen mass ra<strong>the</strong>r than a relatively warm<br />

ocean influence. As <strong>the</strong> territory lies in a westerly wind belt, warm influences<br />

from <strong>the</strong> Pacific Oceans do not reach far inl<strong>and</strong>. In winter a large cold highpressure<br />

cell, centred in Mongolia , spreads over much <strong>of</strong> Siberia.<br />

In <strong>the</strong> low-pressure system <strong>of</strong> summer , warm <strong>and</strong> moist air pushes from <strong>the</strong><br />

Atlantic Ocean well into Siberia. In many areas, however, <strong>the</strong> summer rainfall<br />

distribution is not always advantageous for agriculture. June <strong>and</strong> July are <strong>of</strong>ten<br />

dry , while rain may interfere with cereal harvest in August. Annual precipitation<br />

decreases from over 800 mm in western Russia to below 400 mm along <strong>the</strong><br />

Caspian Sea.<br />

Climate <strong>and</strong> vegetation fuse in zones that extend across <strong>the</strong> country in<br />

eastern-western belts. The tundra <strong>of</strong> <strong>the</strong> Arctic coast, with its permafrost <strong>and</strong><br />

vegetation <strong>of</strong> mosses, lichens <strong>and</strong> low shrubs, is too cold for trees. The next (sub-<br />

Arctic) zone is <strong>the</strong> boreal (coniferous) forest , <strong>the</strong> taiga , occupying two-fifths <strong>of</strong><br />

European Russia <strong>and</strong> most <strong>of</strong> Siberia. Much <strong>of</strong> this region also has permafrost.<br />

Large areas are devoid <strong>of</strong> trees, primarily because <strong>of</strong> poor local drainage, <strong>and</strong> <strong>the</strong><br />

vegetation is marshy. The soils <strong>of</strong> <strong>the</strong> taiga are podsolic <strong>and</strong> infertile.<br />

Fur<strong>the</strong>r south stretches a belt <strong>of</strong> mixed forest from Saint Petersburg in<br />

<strong>the</strong> north to <strong>the</strong> border with Ukraine in <strong>the</strong> south. The mixed-forest grades<br />

through a narrow zone <strong>of</strong> forest-steppe before passing into <strong>the</strong> true steppe.<br />

True steppe, as distinct from <strong>the</strong> forest -steppe fur<strong>the</strong>r north, is predominantly<br />

a grass vegetation with a few stunted trees only in sheltered valleys. The<br />

true steppe belt begins along <strong>the</strong> Black Sea coast, encompasses <strong>the</strong> western half<br />

<strong>of</strong> <strong>the</strong> nor<strong>the</strong>rn Caucasian plain, <strong>and</strong> extends nor<strong>the</strong>ast across <strong>the</strong> lower Volga,<br />

<strong>the</strong> sou<strong>the</strong>rn Urals <strong>and</strong> <strong>the</strong> sou<strong>the</strong>rn parts <strong>of</strong> western Siberia.<br />

Toge<strong>the</strong>r with <strong>the</strong> forest -steppe, <strong>the</strong> steppes form <strong>the</strong> chernozem belt, <strong>the</strong><br />

agricultural heartl<strong>and</strong> <strong>of</strong> Russia . The forest-steppe is black chernozem soil,<br />

high in organic matter (OM) <strong>and</strong> minerals, <strong>and</strong> better watered than <strong>the</strong> steppe.<br />

Steppe soils are somewhat lower in OM, but high in minerals, <strong>and</strong> many are<br />

also classified as brown-steppe (chestnut).<br />

ECOLOGICAL CLASSIFICATION<br />

In <strong>the</strong> Russian Federation with its vast uninterrupted plains, zones delineating<br />

<strong>the</strong> major vegetation types agree conveniently with climatic zones <strong>and</strong>, in a<br />

way, also with major soil types. Typically, <strong>the</strong>se zones tend to run in semi -<br />

parallel belts in a slightly northwesterly to sou<strong>the</strong>asterly direction.<br />

Topography, watercourses <strong>and</strong> variation in soil conditions become relevant<br />

at <strong>the</strong> rayon [a small territorial administrative division] or ra<strong>the</strong>r at <strong>the</strong> (former)<br />

Kolkhoz or Sovkhoz level. It was at this unit level that grassl<strong>and</strong> description


386<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

was to be refined <strong>and</strong> effected for l<strong>and</strong> management <strong>and</strong>, ultimately, grassl<strong>and</strong><br />

improvement . Both <strong>the</strong> objective <strong>and</strong> framework <strong>of</strong> <strong>the</strong> approach were prescribed.<br />

However, more than elsewhere in <strong>the</strong> world, classification in <strong>the</strong> country<br />

lost itself in attempts to be all-USSR in compass, ending up with hundreds<br />

<strong>of</strong> codes <strong>and</strong> numbers. Colloquial terms could have summed it all up in one<br />

word (e.g. mochazina – non-peaty swamp; liman – flooded steppe in <strong>the</strong> lower<br />

reaches <strong>of</strong> rivers). Impeded drainage means swamp in <strong>the</strong> nor<strong>the</strong>rn forest country,<br />

but lush pasture in <strong>the</strong> steppe. Conversely, overgrazing can lead to bareness<br />

to an extent that <strong>the</strong> vegetation assumes <strong>the</strong> appearance <strong>of</strong> a drier climate than<br />

rainfall data suggest. <strong>Grassl<strong>and</strong>s</strong> – <strong>and</strong> steppe are no exception – are an integration<br />

<strong>of</strong> climate, soil, animal <strong>and</strong> man-made conditions. Vegetation may <strong>of</strong>ten<br />

provide a better guide to <strong>the</strong> agricultural environment than <strong>the</strong> instruments <strong>of</strong><br />

meteorologist or geologist (Whyte, 1974). “What are <strong>the</strong> main species <strong>and</strong> what<br />

do <strong>the</strong>y tell us?” is <strong>of</strong>ten a most relevant question.<br />

<strong>Grassl<strong>and</strong>s</strong> are subject to fluctuations in composition, but recurring patterns<br />

are recognized. The major features, physiognomy (<strong>the</strong> aspect in terms<br />

<strong>of</strong> height, density <strong>and</strong> cover) <strong>and</strong> species, are fairly constant or <strong>the</strong>y oscillate<br />

around a certain equilibrium, both between <strong>and</strong> within woody <strong>and</strong> herbaceous<br />

species. Major changes are usually a long-term affair. Only when grassl<strong>and</strong><br />

is artificially drained permanently <strong>of</strong> excess water, or altered dramatically by<br />

repeated ploughing <strong>and</strong> cropping, can changes in <strong>the</strong> vegetation become irreversible.<br />

As we will see, steppe is relatively quick to restore.<br />

ECOLOGICAL (SITE) POTENTIAL<br />

Much as early classifications were based on botanical composition , awareness<br />

was growing that ecological potential could be related to a recognizable<br />

vegetation group . To many observers, however, current vegetation is a very<br />

poor indicator <strong>of</strong> ecological potential <strong>and</strong> possible l<strong>and</strong> use. The problem is <strong>the</strong>n<br />

how to reconcile current vegetation with ecological potential. Classification<br />

means one thing to <strong>the</strong> specialist in phytogeography, but quite ano<strong>the</strong>r to <strong>the</strong><br />

planner concerned with grassl<strong>and</strong> improvement . Site potential – that is, <strong>the</strong><br />

vegetation that ecological factors indicate should dominate – is <strong>the</strong> guiding<br />

factor. A climax vegetation can be reconstructed based on natural succession<br />

towards an equilibrium with <strong>the</strong> environment. This process may be interrupted<br />

<strong>and</strong> vegetation may <strong>the</strong>n be described as, say, a “fire subclimax ” or a “grazing<br />

subclimax”. The concept <strong>of</strong> climax should relate to site potential as determined<br />

by physical factors <strong>of</strong> <strong>the</strong> environment: climate, soil <strong>and</strong> topography. Tundra,<br />

steppe <strong>and</strong> semi -desert are <strong>the</strong>n ecoclimatic zones , which can be characterized<br />

fur<strong>the</strong>r by plant species <strong>and</strong> associations to delineate recognizable types <strong>of</strong><br />

vegetation.<br />

The term grassl<strong>and</strong> or steppe is here used to denote a vegetation that is<br />

dominated by grasses <strong>and</strong> occasionally herbs, whatever <strong>the</strong> plant succession.<br />

The grasses used in cultivation today are those found growing in <strong>the</strong> wild


The Russian Steppe 387<br />

TABLE 10.1<br />

Important species <strong>of</strong> <strong>the</strong> Russian steppe.<br />

Maturity group ( 1 ) Typical species <strong>and</strong> <strong>the</strong>ir characteristics<br />

Very early<br />

(April/May)<br />

Poa bulbosa L. Tufted


388<br />

Plate 10.1<br />

Agropyron pectiniforme.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

vegetation occur. Ramenskii’s classifications are known as “phytotopological”<br />

with major emphasis on <strong>the</strong> habitat . First, all natural grassl<strong>and</strong> is divided into<br />

dryl<strong>and</strong> or floodplain. Second, subdivisions are based on topography <strong>and</strong><br />

moisture conditions. No less than 50 categories were formulated, each with<br />

22 subdivisions based on moisture conditions. Within similar habitats, several<br />

plant associations occur.<br />

For instance, on dark-chestnut loamy soil <strong>of</strong> <strong>the</strong> dry steppe plains, Ramenskii<br />

found <strong>the</strong> following associations as grazing intensity increases:<br />

• in virgin steppe, a low-grass sward with Stipa lessingiana (Plate 10.2), but less<br />

Festuca sulcata ;<br />

• after a few years, predominantly Festuca sulcata ;<br />

• under intensive grazing , Poa bulbosa associations; <strong>and</strong><br />

• finally, after excessive grazing , an association with Polygonum aviculare .<br />

This is typical succession-regression (see also Table 10.2). Ramenskii’s<br />

analysis <strong>of</strong> <strong>the</strong> constituents <strong>of</strong> <strong>the</strong> vegetation itself was not quantitative, but<br />

estimated by so-called vertical “projection”, by simply estimating <strong>the</strong> degree<br />

<strong>of</strong> cover at one particular date. No mechanical devices for ranking constituent<br />

species or for weighing samples were employed. Potential yields were estimated<br />

from empirically established st<strong>and</strong>ard graphs (see also section below on<br />

Botanical condition ).<br />

After ploughing <strong>and</strong> cropping steppe for several years, <strong>the</strong> following appear<br />

in <strong>the</strong> fallow :


The Russian Steppe 389<br />

TABLE 10.2<br />

The effect <strong>of</strong> grazing intensity on grassl<strong>and</strong> changes<br />

Grazing<br />

intensity<br />

Oka<br />

floodplain meadows<br />

Nor<strong>the</strong>rn Caucasus<br />

Common Chernozem<br />

Plate 10.2<br />

Stipa lessingiana<br />

Absent Stipa spp., Festuca sulcata; herbs;<br />

Agropyron spp. <strong>and</strong> Bromus spp.<br />

frequent<br />

Weak Phleum pratense, Agrostis alba,<br />

Geranium pratense<br />

Moderate Festuca rubra, Carum carvi,<br />

Bromus inermis, Alopecurus<br />

pratensis, Agrostis alba<br />

Intensive Poa pratensis, Achillea<br />

millefolium, Leontodon spp.,<br />

Medicago falcata, Carex<br />

schreberi, Trifolium repens,<br />

Alopecurus pratensis<br />

Excessive Polygonum aviculare <strong>and</strong> a few<br />

<strong>of</strong> <strong>the</strong> above<br />

SOURCE: Larin, 1956.<br />

Stipa , Festuca sulcata; fewer<br />

herbs; Agropyron spp. <strong>and</strong><br />

Bromus spp.<br />

Western Kazakhstan<br />

Dark chestnut<br />

Stipa lessingiana, Festuca<br />

sulcata, Stipa capillata, Artemisia<br />

austriaca<br />

Festuca sulcata Festuca sulcata, Koeleria gracilis,<br />

Stipa capillata, Artemisia<br />

austriaca<br />

Poa bulbosa, much Carex<br />

schreberi, Artemisia austriaca<br />

<strong>and</strong> Euphorbia seguieriana<br />

Polygonum aviculare <strong>and</strong><br />

Ceratocarpus arenarius<br />

Artemisia austriaca, Poa bulbosa,<br />

Euphorbia virgata<br />

Polygonum aviculare, Agropyron<br />

spp., Ceratocarpus arenarius,<br />

Bassia spp.<br />

• First year: annuals.<br />

• Second <strong>and</strong> third year: biennial <strong>and</strong> perennial herbs.<br />

• Third <strong>and</strong> fourth year: Agropyron racemosum emerging.<br />

• Fifth to eighth year: Agropyron racemosum over 80 percent <strong>of</strong> <strong>the</strong> herbage,<br />

with Festuca sulcata (Plate 10.3) emerging.<br />

• Festuca sulcata predominant.


390<br />

Plate 10.3<br />

Festuca sulcata<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

• To about <strong>the</strong> fifteenth year: Stipa lessingiana becomes predominant (return to<br />

<strong>the</strong> initial virgin steppe).<br />

Thus, at least five distinct associations are found. Depending on <strong>the</strong> management<br />

<strong>of</strong> <strong>the</strong> fallow <strong>and</strong> on <strong>the</strong> previous cropping history <strong>of</strong> <strong>the</strong> l<strong>and</strong>, several<br />

tens <strong>of</strong> associations may be distinguished. Although each modification has significance<br />

for current utilization, habitat potential remains very much <strong>the</strong> same.<br />

Shennikov, <strong>the</strong>refore, preferred to allocate Ramenskii’s virgin low-sward grass<br />

stage to “herbaceous steppe”; <strong>the</strong> Agropyron fallow to “(mesophilic) meadow<br />

type ” <strong>and</strong> <strong>the</strong> Polygonum association to “herbaceous annual vegetation ”, all<br />

forming part <strong>of</strong> <strong>the</strong> Herbosa basic type <strong>of</strong> vegetation (see below). Shennikov’s<br />

was a commendable effort <strong>of</strong> amalgamating <strong>the</strong> elements that unite ra<strong>the</strong>r than<br />

divide.<br />

The emphasis at <strong>the</strong> time on terminology such as “phytocoenosis ” <strong>and</strong><br />

“zoocoenosis ”, toge<strong>the</strong>r forming <strong>the</strong> biocoenosis <strong>and</strong> interrelating with <strong>the</strong><br />

biogeocoenosis , is worth noting (Sukachev, 1945). Ano<strong>the</strong>r emphasis was <strong>the</strong><br />

division into four vegetation types : 1. Lignosa – tree-shrub; 2. Herbosa – herbaceous<br />

plants (see above); 3. Deserta – desert plants; <strong>and</strong> 4. Errantia – various.<br />

Shennikov’s hierarchy for a particular situation might be: 1. Vegetation -type<br />

group : Herbosa. 2. Type <strong>of</strong> vegetation : meadow (humid-grassl<strong>and</strong> mainly used<br />

for hay ). 3. Class <strong>of</strong> formations: true meadow (as against steppe or swamp).<br />

4. Formation group: coarse grass , coarse sedge. 5. Formation: Alopecurus


The Russian Steppe 391<br />

pratensis dominant. 6. Association group: various admixtures <strong>of</strong> Alopecurus<br />

pratensis. 7. Associations.<br />

Sukachev’s classification is “phytocoenological”, whereas Ramenskii’s is<br />

“phytotopological”, <strong>and</strong> <strong>the</strong> latter’s example was followed by Dmitriev (1948)<br />

<strong>and</strong> Chugunov (1951). However, <strong>the</strong> distinction is <strong>of</strong>ten blurred. Ramenskii’s<br />

seral stages <strong>of</strong> plant succession, although not coined as such by him or his successors,<br />

are classical examples <strong>of</strong> linear Clementsian succession.<br />

Conversely, bare ground is colonized by ruderals, which give place to<br />

seral grassl<strong>and</strong> stages as organic matter accumulates <strong>and</strong> <strong>the</strong>se are eventually<br />

replaced by taller bunch grasses. Clements (1916) ideas proved applicable not<br />

only in USA , but also in Canada (Coupl<strong>and</strong>, 1979, whose work used to be<br />

quoted in Russia ) <strong>and</strong> in East <strong>and</strong> South Africa (Phillips, 1929). It is doubtful<br />

if it ever was Clements’ aim to apply <strong>the</strong> succession model to all situations<br />

liable to transition, or to claim that climax vegetation was <strong>the</strong> most desirable<br />

or most productive from <strong>the</strong> agricultural point <strong>of</strong> view in all situations. Plant<br />

succession can be studied with <strong>the</strong> aim <strong>of</strong> identifying <strong>the</strong> preferred seral stages<br />

with desirable composition. As we will see in Russia, many instances can also<br />

be found in which some <strong>of</strong> <strong>the</strong> seral stages (fallow l<strong>and</strong>) are considerably more<br />

diverse <strong>and</strong> productive in herbage than <strong>the</strong> climax vegetation itself. It goes too<br />

far, however, to regard this as counter-evidence for <strong>the</strong> succession model. As in<br />

<strong>the</strong> Great Plains <strong>of</strong> USA, <strong>the</strong> climax grasses <strong>of</strong> <strong>the</strong> Russian steppe are productive<br />

<strong>and</strong> acceptable to livestock; <strong>the</strong>y provide ground cover to protect soil <strong>and</strong><br />

are effective plants in utilizing environmental growth factors to fix carbon <strong>and</strong><br />

to cycle nutrients.<br />

The interplay <strong>of</strong> biotic, climatic <strong>and</strong> edaphic components <strong>of</strong> <strong>the</strong> environment<br />

is relevant, as <strong>the</strong>se modify <strong>the</strong> dynamics <strong>of</strong> grassl<strong>and</strong> communities . Efforts at<br />

grassl<strong>and</strong> improvement are directed at manipulating <strong>the</strong> botanical composition<br />

to encourage <strong>the</strong> more desirable species <strong>and</strong> suppress those less desirable. A basic<br />

thrust in current grassl<strong>and</strong> improvement has been <strong>the</strong> comparison <strong>of</strong> <strong>the</strong> current<br />

site condition with what it ought to be, i.e. site potential . Acknowledgement <strong>of</strong><br />

various stable vegetation states at a particular site widens <strong>the</strong> scope for opportunistic<br />

management that is responsive to abiotic events <strong>and</strong> that is not bound<br />

under all circumstances by doctrines that abhor fire or that only value stocking<br />

rates that are moderate.<br />

BOTANICAL CONDITION (ECOLOGICAL MONITORING )<br />

Few are <strong>the</strong> instances where ecological techniques can have such an impact<br />

on practical management decisions in agriculture as those developed in<br />

grassl<strong>and</strong> science. Botanical assessment has proved a more reliable <strong>and</strong> efficient<br />

criterion <strong>of</strong> condition , <strong>and</strong>, <strong>the</strong>refore, <strong>of</strong> productivity <strong>of</strong> grassl<strong>and</strong>, than yield<br />

measurements <strong>the</strong>mselves. Given <strong>the</strong> enormous tasks <strong>of</strong> natural resource<br />

management ahead, it is appropriate here to draw attention to new techniques<br />

<strong>of</strong> botanical grassl<strong>and</strong> surveys.


392<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

The FSU had “State Institutes for L<strong>and</strong> Control” in each republic, which<br />

carried out surveys about every ten years on <strong>the</strong> same (grass )l<strong>and</strong>. Surveys<br />

were <strong>and</strong> are applied with strict adherence to FSU-wide methodology that has<br />

seen little change over <strong>the</strong> decades. The emphasis was primarily on maximizing<br />

production, that is, on setting animal production levels <strong>and</strong>, ultimately,<br />

<strong>the</strong> levels <strong>of</strong> grants <strong>and</strong> credits extended to <strong>the</strong> agricultural enterprises to meet<br />

<strong>the</strong>se production levels regularly. For <strong>the</strong>ir part, Kolkhozy <strong>and</strong> Sovkhozy were<br />

required to produce grassl<strong>and</strong> inventories, with a denomination <strong>of</strong> vegetation ,<br />

soil type , o<strong>the</strong>r physical conditions as well as details <strong>of</strong> current utilization <strong>and</strong><br />

proposed improvements for each area on <strong>the</strong> map.<br />

The methodology in use for <strong>the</strong> measurement <strong>of</strong> yield-on-<strong>of</strong>fer in quadrats<br />

(rope-frames) is quite complex <strong>and</strong> labour intensive. Components are separated<br />

by h<strong>and</strong> <strong>and</strong> analysed. The chemical analysis estimates feed units <strong>and</strong> protein<br />

<strong>of</strong> <strong>the</strong> edible portion, which is equated with <strong>the</strong> green material present in <strong>the</strong><br />

sample. To achieve this, <strong>the</strong> technique uses a variable height <strong>of</strong> cutting, giving<br />

that portion <strong>of</strong> growth that is most likely to be grazed. Conversion <strong>of</strong> <strong>the</strong>se<br />

data to animal production is not, however, flawless. True growth – not just<br />

yield-on-<strong>of</strong>fer – can only be assessed by placing protective cages <strong>and</strong> moving<br />

<strong>the</strong>m around at each sampling. Without reference data, carrying capacity<br />

cannot be assessed instantaneously.<br />

Botanical analysis using <strong>the</strong> current methodology provides relative proportions,<br />

on an air-dry basis, <strong>of</strong> <strong>the</strong> species present in <strong>the</strong> quadrat, but <strong>the</strong> data are<br />

not used to full ecological potential. Since <strong>the</strong> emphasis is on measuring for setting<br />

animal production, botanical data are not applied to monitor composition or<br />

succession-regression compared with <strong>the</strong> preferred composition. In fact, <strong>the</strong> said<br />

proportions could provide more valuable information on <strong>the</strong> successional status<br />

<strong>of</strong> a pasture than any o<strong>the</strong>r observations made. Botanical data are more powerful<br />

predictors <strong>of</strong> pasture condition than yield data <strong>and</strong> can be assessed in a meaningful<br />

<strong>and</strong> less laborious way, e.g. by <strong>the</strong> dry weight rank (DWR ) technique (‘t Mannetje<br />

<strong>and</strong> Jones, 2000).<br />

Production measurement used to be <strong>the</strong> approach in <strong>the</strong> FSU surveys. With<br />

<strong>the</strong> shift from being a part <strong>of</strong> <strong>the</strong> centrally planned production administration<br />

to agencies responsible for <strong>the</strong> resource management <strong>of</strong> <strong>the</strong> country, <strong>the</strong>re has<br />

to be a reassessment <strong>of</strong> what technology is now relevant. The ultimate objective<br />

<strong>of</strong> <strong>the</strong> new-style monitoring is to rehabilitate <strong>the</strong> grassl<strong>and</strong>s to acceptable<br />

preferred composition <strong>and</strong> to keep <strong>the</strong>m at <strong>the</strong> preferred composition.<br />

Decentralized development <strong>and</strong> devolved management <strong>of</strong> grazing rights – at<br />

<strong>the</strong> level <strong>of</strong> rayon, village, if not <strong>of</strong> <strong>the</strong> individual – call for a change in methodology<br />

<strong>and</strong> its ultimate application, in keeping with <strong>the</strong> requirement for natural<br />

resource management at <strong>the</strong> national level. New technologies proposed for<br />

monitoring <strong>and</strong> measurement that are accurate <strong>and</strong> cost efficient are <strong>the</strong> DWR<br />

technique for botanical composition <strong>and</strong>, when required but not essential, <strong>the</strong><br />

comparative yield estimate (CYE) technique for yield-on-<strong>of</strong>fer. Additional


The Russian Steppe 393<br />

information to determine condition is also needed (plant size, sward density,<br />

soil condition).<br />

Monitoring involves checking changes in <strong>the</strong> condition <strong>of</strong> grassl<strong>and</strong> through<br />

monitoring <strong>the</strong> changes in composition <strong>and</strong> <strong>the</strong> changes in soil condition. With<br />

<strong>the</strong> data acquired, management <strong>and</strong> stocking rates can be adjusted to prevent<br />

or reverse degradation . Conversely, measuring involves assessing <strong>the</strong> productivity<br />

<strong>of</strong> grassl<strong>and</strong> through measurement <strong>of</strong> true growth ra<strong>the</strong>r than <strong>of</strong> yieldon-<strong>of</strong>fer.<br />

With <strong>the</strong> data acquired, stocking rates can be adjusted to maintain<br />

livestock productivity. Ra<strong>the</strong>r than production-oriented measurement, ecological<br />

parameters have been found to be <strong>the</strong> most valuable <strong>and</strong> cost-effective<br />

approach to monitor grassl<strong>and</strong> condition. An up-to-date description <strong>of</strong> grassl<strong>and</strong><br />

monitoring methods, approaches <strong>and</strong> tools can be found in ‘t Mannetje<br />

<strong>and</strong> Jones (2000).<br />

Husb<strong>and</strong>ry should be directed towards maintaining a dynamic equilibrium<br />

around <strong>the</strong> preferred botanical composition that is <strong>the</strong> target pasture<br />

composition for sustainable development . The preferred composition differs<br />

from earlier, more orthodox, interpretations <strong>of</strong> Clementsian succession,<br />

which hold that <strong>the</strong> most desirable <strong>and</strong> only stable or sustainable composition<br />

is <strong>the</strong> climax . Numerous are <strong>the</strong> examples whereby climax grasses are<br />

found to be less productive than those at an intermediate position in <strong>the</strong><br />

succession.<br />

STEPPE DYNAMICS IN RELATION TO BOTANICAL COMPOSITION<br />

Wea<strong>the</strong>r<br />

A few examples should suffice. Poa pratensis in <strong>the</strong> forest zone as well as<br />

Festuca sulcata <strong>and</strong> Agropyron sibiricum in <strong>the</strong> steppe preserve <strong>the</strong>ir green<br />

shoots under <strong>the</strong> snow until spring <strong>and</strong> some growth may occur, even under<br />

<strong>the</strong> snow. Assimilation <strong>and</strong> growth begin in spring at temperatures <strong>of</strong> 3–5°C.<br />

Ephemerals <strong>and</strong> “ephemeroids” (Russian term denoting perennials whose<br />

vegetative parts die down annually, e.g. Poa bulbosa ) flower in spring, <strong>the</strong><br />

rest in early summer . Plants dry <strong>of</strong>f as summer peaks, dormancy sets in, <strong>and</strong><br />

tillering is not resumed until <strong>the</strong> rains return in autumn . Wea<strong>the</strong>r conditions <strong>of</strong><br />

<strong>the</strong> preceding season have a marked effect. Without snow cover, a whole range<br />

<strong>of</strong> plants perish, including clovers <strong>and</strong> ryegrass . When <strong>the</strong> soil is not frozen but<br />

has a thick cover <strong>of</strong> 30 cm <strong>of</strong> snow for more than three months, <strong>the</strong>se <strong>and</strong> o<strong>the</strong>r<br />

plants will die <strong>of</strong>f (vyprevanie), probably because <strong>of</strong> continued respiration. A<br />

snowless winter followed by a cold spring <strong>and</strong> drought may prevent seed set<br />

in <strong>the</strong> surviving grasses.<br />

From fallow to steppe<br />

The following transitional stages from fallow onto virgin steppe used to be<br />

considered characteristic: 1. Annual weeds. 2. Perennial weeds. 3. Rhizomatous<br />

plants. 4. Bunch grasses. 5. Secondary virgin steppe. However, in more modern


394<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

thinking, <strong>the</strong> earlier <strong>of</strong> <strong>the</strong>se stages are not necessarily hierarchical but <strong>of</strong>ten<br />

run parallel, with <strong>the</strong> rhizomatous stage at times little in evidence.<br />

Russia ’s foremost early grassl<strong>and</strong> improvement pioneer, V.R. Vil’yams, had<br />

repeatedly pointed out, circa 1920, that <strong>the</strong> interrelationships between plant<br />

<strong>and</strong> environment are such that one soil-plant complex is replaced by ano<strong>the</strong>r.<br />

He even took this to <strong>the</strong> extreme that, in <strong>the</strong> sod-formation process, forests<br />

thin out naturally <strong>and</strong> finally give way to grassl<strong>and</strong>. Shennikov (1941) repudiated<br />

this part <strong>of</strong> Vil’yams concept <strong>and</strong> argued that a forest -to-grassl<strong>and</strong> conversion<br />

is not observed in nature, unless man-assisted by clearing <strong>and</strong> burning<br />

<strong>and</strong>, occasionally, under <strong>the</strong> influence <strong>of</strong> mass destruction by insects active in<br />

<strong>the</strong> forest floor.<br />

Vil’yams had, however, rightly drawn attention to <strong>the</strong> phenomenon <strong>of</strong><br />

organic matter accumulation in grassl<strong>and</strong> soil, as well as to <strong>the</strong> ageing <strong>and</strong> subsequent<br />

decline (“depression”) in productivity <strong>of</strong> (new) grassl<strong>and</strong> (Mid-term<br />

depression; Soil-chemical effects <strong>of</strong> grasses). In his view, grassl<strong>and</strong> that has<br />

reached <strong>the</strong> “densely-tufted phase” is degenerate, beyond rehabilitation <strong>and</strong><br />

should be ploughed <strong>and</strong> re-sown , fertilizer at this stage not being worthwhile.<br />

However, as we will see below, attempts aimed at arresting <strong>and</strong> encouraging<br />

<strong>the</strong> fallow grass phases dominated by more desirable plants can bring about <strong>the</strong><br />

improvement wanted.<br />

The Steppe <strong>and</strong> its types<br />

In 1954, <strong>of</strong> <strong>the</strong> whole territory <strong>of</strong> Russia (1 690 million hectares), some<br />

144 million hectares were under natural grassl<strong>and</strong> (hay meadow <strong>and</strong> pasture )<br />

before <strong>the</strong> crop expansion campaigns (Table 10.3). If tundra were included,<br />

ano<strong>the</strong>r 206 million hectares should be added. Kazakhstan had a relatively<br />

small area under meadows (12 million hectares against 176 million hectares)<br />

while Ukraine, in contrast, had relatively little grassl<strong>and</strong> as a whole. Fallow is<br />

usually included under arable <strong>and</strong> not under grassl<strong>and</strong>.<br />

Data for 1998, from <strong>the</strong> Russian Academy <strong>of</strong> Agricultural Sciences<br />

(RASHN), put <strong>the</strong> total for Russia at 83.6 million hectares <strong>of</strong> grassl<strong>and</strong><br />

(37 percent <strong>of</strong> agricultural l<strong>and</strong>), with 21.6 million hectares <strong>and</strong> 62.0 million<br />

hectares for hay meadows <strong>and</strong> pastures, respectively. The difference from<br />

1954, 60 million hectares, is estimated to be 17 million hectares, representing<br />

steppe that was ploughed in <strong>the</strong> 1950s (Maslov, 1999).<br />

TABLE 10.3<br />

Area under natural grass (millions <strong>of</strong> hectares), not including tundra, 1954.<br />

L<strong>and</strong> Hay meadows Pastures Grassl<strong>and</strong><br />

Total Total Fallow Total Fallow Total (1)<br />

Russian Federation 1 690 49 4.6 95 4.0 144<br />

Kazakhstan 275 12 2.2 176 2.2 188<br />

Ukraine 60 3.2 0.03 4.7 0.2 7.9<br />

FSU (USSR) 2 227 74 7.2 347 8.8 421<br />

NOTES: (1) Excluding fallow l<strong>and</strong>.<br />

SOURCE: Administrativno territorialnoe delenie soyznykh respublik, 1954.


S.S. MIKHALEV<br />

The Russian Steppe 395<br />

Forest steppe<br />

Between <strong>the</strong> forest zone in <strong>the</strong> north <strong>and</strong> <strong>the</strong> semi -desert in <strong>the</strong> south stretches <strong>the</strong><br />

steppe belt. Characteristic <strong>of</strong> forest steppe is <strong>the</strong> alternation <strong>of</strong> forest isl<strong>and</strong>s <strong>and</strong><br />

large areas <strong>of</strong> more herbaceous vegetation . The European part is considerably<br />

more humid (460–560 mm) than <strong>the</strong> Asian part (315–400 mm), <strong>and</strong> warmer.<br />

Whereas, in <strong>the</strong> forest-steppe zone, <strong>the</strong> relief is hilly on <strong>the</strong> western side <strong>of</strong><br />

<strong>the</strong> Urals, lowl<strong>and</strong> plains prevail in western Siberia, with many depressions<br />

occupied by lakes <strong>and</strong> marshes.<br />

In <strong>the</strong> European forest steppe , practically all catchment areas occupied<br />

by chernozems are under cultivation . Small areas <strong>of</strong> forests consist <strong>of</strong> birch,<br />

aspen <strong>and</strong> oak. <strong>Grassl<strong>and</strong>s</strong> have remained on steep slopes <strong>and</strong> near <strong>the</strong><br />

riverbeds (flood meadow s). Because <strong>of</strong> intensive grazing , Poa angustifolia<br />

<strong>and</strong> Festuca sulcata predominate. On better preserved hayfields (Plate 10.4),<br />

a wide variety <strong>of</strong> grasses (Calamagrostis epigeios <strong>and</strong> species <strong>of</strong> Agropyron ,<br />

Bromus , Festuca, Phleum <strong>and</strong> Poa) <strong>and</strong> legumes (Trifolium pratense , T. repens<br />

<strong>and</strong> Medicago , Vicia <strong>and</strong> Lathyrus spp.) <strong>and</strong> herbs are found. Hay yields<br />

<strong>of</strong> 1 000–1 500 kg/ha used to be recorded, <strong>and</strong> were considered good. In<br />

overgrazed areas, yields are only a third <strong>of</strong> that.<br />

In <strong>the</strong> Asian part <strong>of</strong> <strong>the</strong> forest steppe , forests used to occupy up to<br />

15 percent <strong>of</strong> <strong>the</strong> territory <strong>and</strong> consisted <strong>of</strong> birch, aspen <strong>and</strong> willow , but no<br />

oak. Groundwater levels are high, so swamps are common. Much less <strong>of</strong><br />

<strong>the</strong> l<strong>and</strong> has been ploughed than on <strong>the</strong> western side <strong>of</strong> <strong>the</strong> Urals, <strong>and</strong> <strong>the</strong>n<br />

mostly on <strong>the</strong> ridges. On <strong>the</strong> plains, solonetzic soils <strong>and</strong> typical chernozems<br />

(mainly solonetzic) predominate. The predominant plant is Calamagrostis<br />

epigeios , which is very typical <strong>of</strong> western Siberia. O<strong>the</strong>r species are Poa<br />

pratensis , Galatella punctata <strong>and</strong> Peucedanum ru<strong>the</strong>nicum . Hay yields are<br />

600–800 kg/ha.<br />

Plate 10.4<br />

Haymaking in a forest -steppe floodplain.


396<br />

TABLE 10.4<br />

Climate data <strong>of</strong> <strong>the</strong> chernozem-steppe.<br />

Sum <strong>of</strong> mean daily<br />

temperatures over 10°C<br />

Precipitation<br />

mm/year<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

January, mean temperature<br />

(°C)<br />

Nor<strong>the</strong>rn Caucasus 3 000-3 500 400-600 0 to -7<br />

Central Chernozem 2 600-3 200 350-500 -5 to -12<br />

Volga Territory 2 200-2 800 300-400 -12 to -16<br />

Ural 2 000-2 900 300-400 -15 to -17<br />

Western Siberia 1 800-2 100 300-350 -16 to -19<br />

Eastern Siberia<br />

SOURCE: Chibilev, 1998.<br />

1 600-2 000 200-400 down to -30<br />

Steppe<br />

The steppe zone covers an area <strong>of</strong> 143 million hectares. The climate (Table 10.4)<br />

is more continental but becomes more humid towards <strong>the</strong> foothills <strong>of</strong> <strong>the</strong><br />

mountain ranges (Caucasus, Urals <strong>and</strong> Altai foothills).<br />

The principal soils <strong>of</strong> <strong>the</strong> steppe are chernozems <strong>and</strong> dark chestnut soils.<br />

However, in <strong>the</strong> Rostov (Salsk <strong>and</strong> Primanchy steppe) <strong>and</strong> Volgograd regions,<br />

as well as in Kazakhstan , solonetz <strong>and</strong> solonchaks are numerous.<br />

Characteristic <strong>of</strong> <strong>the</strong> steppe are treeless plains with a dominance <strong>of</strong> Stipa spp.<br />

<strong>and</strong> Festuca sulcata . Trees <strong>and</strong> shrubs are confined to depressions <strong>and</strong> ravines<br />

<strong>and</strong> include Caragana frutex , Spiraea spp. , Amygdalus nana , <strong>and</strong> Cytisus spp.<br />

Steppe grasses, including <strong>the</strong> xerophytic types , cease activity in summer <strong>and</strong><br />

dry up entirely. With new rains in late August <strong>and</strong> early September, tillering<br />

recommences. In sharp contrast to <strong>the</strong> forest <strong>and</strong> forest-steppe zones , ephemerals<br />

<strong>and</strong> ephemeroids appear in spring <strong>and</strong> conclude <strong>the</strong>ir cycle <strong>of</strong> development<br />

in 60–70 days. From <strong>the</strong> husb<strong>and</strong>ry point <strong>of</strong> view, <strong>the</strong> following subdivision<br />

seems useful: 1. Virgin steppe <strong>and</strong> old fallows . 2. Mid-term fallows <strong>of</strong> 2–3 to<br />

7–10 years. 3. Young fallows.<br />

Virgin steppe<br />

Only small isolated isl<strong>and</strong>s <strong>of</strong> steppe were preserved in <strong>the</strong> European part <strong>of</strong> <strong>the</strong><br />

FSU: Askaniya, Starobelsk, Khrenovskaya, Streletskaya (Olikova <strong>and</strong> Sycheva,<br />

1996). Larger areas used to occur in Russia in <strong>the</strong> Salsk <strong>and</strong> Primanchy steppe<br />

in Rostov Oblast [region], in Volgograd Oblast <strong>and</strong> in Stavropol Kray. Closer<br />

to <strong>the</strong> Caspian Sea, in <strong>the</strong> nor<strong>the</strong>rn parts <strong>of</strong> <strong>the</strong> Dagestan Republic, stretches<br />

<strong>the</strong> s<strong>and</strong>y, semi -arid Nogayskaya steppe. The largest areas are in Kazakhstan ,<br />

but, apart from <strong>the</strong> solononetz <strong>and</strong> solonetzic soils, millions <strong>of</strong> hectares were<br />

sacrificed to cropping in <strong>the</strong> 1950s <strong>and</strong> 1960s.<br />

As pointed out earlier, <strong>the</strong> distinguishing lines between <strong>the</strong> vegetation <strong>of</strong><br />

virgin steppe <strong>and</strong> old ab<strong>and</strong>oned fallows are blurred, so that much <strong>of</strong> <strong>the</strong><br />

uncropped l<strong>and</strong> may soon return to steppe <strong>and</strong> not bear much sign <strong>of</strong> having<br />

been cropped for so long. The underlying processes that help to facilitate this<br />

return are emphasized here, with a focus on <strong>the</strong> work done in <strong>the</strong> period when<br />

virgin steppe still formed a formidable grazing <strong>and</strong> hay resource.


The Russian Steppe 397<br />

In fact, <strong>the</strong> grass swards <strong>of</strong> <strong>the</strong> steppe are – also when still green <strong>and</strong> in active<br />

growth – low (1 m high) is found in nearby flood -meadows. This contrast, which is<br />

especially evident in early summer , is simply too large to be explained away<br />

by limitations posed by nitrogen availability (immobilization versus silt deposition),<br />

drought versus flooding, or by early grazing versus late haymaking .<br />

The hypo<strong>the</strong>sis formulated here is that <strong>the</strong> lack <strong>of</strong> vigorous growth in steppe<br />

vegetation is largely because – by <strong>the</strong> time <strong>of</strong> stem elongation in April/May –<br />

insufficient moisture (in <strong>the</strong> form <strong>of</strong> rain) is available or can be drawn upon to<br />

make mineralized nitrogen available. In addition, because <strong>of</strong> severe winters,<br />

very little <strong>of</strong> <strong>the</strong> soil organic matter has decomposed by that time. Crop nutrition<br />

studies have shown that, on arable l<strong>and</strong> in chernozem soils, some 75 kg/ha<br />

nitrogen is mineralized <strong>and</strong> ano<strong>the</strong>r 75 kg P2O5 is made available each year.<br />

Steppe vegetation was mainly used for extensive grazing in spring <strong>and</strong> autumn .<br />

Where Festuca sulcata is plentiful <strong>and</strong> snow not too heavy, winter grazing can<br />

be satisfactory in sou<strong>the</strong>rn regions.<br />

Semi-desert<br />

The semi -desert stretches in a crescent along <strong>the</strong> nor<strong>the</strong>rn shores <strong>of</strong> <strong>the</strong><br />

Caspian Sea in European Russia <strong>and</strong> <strong>the</strong>n covers large parts <strong>of</strong> Kazakhstan .<br />

Western Siberia has no typical semi-desert . The crescent begins with <strong>the</strong><br />

Nogaskaya steppe in nor<strong>the</strong>rn Dagestan, crosses Kalmykia <strong>and</strong> south <strong>of</strong><br />

Volgograd towards Astrakhan, on <strong>the</strong> Volga estuary, <strong>and</strong> past Guryev, into<br />

Kazakhstan. In <strong>the</strong> FSU, semi-desert totalled 127 million hectares. Snow in<br />

winter is light enough to permit winter grazing . The climate <strong>of</strong> <strong>the</strong> semi-desert<br />

is, however, more continental than that <strong>of</strong> <strong>the</strong> steppe. Low moisture <strong>and</strong> high<br />

temperatures in summer are conducive to <strong>the</strong> development <strong>of</strong> solonchaks<br />

<strong>and</strong>, especially, <strong>of</strong> solonetz, although <strong>the</strong> soils are mainly light chestnut <strong>and</strong><br />

brown. Small variations in microrelief, with very shallow depressions, add to<br />

<strong>the</strong> heterogeneity <strong>of</strong> <strong>the</strong> vegetation . Typical <strong>of</strong> <strong>the</strong> semi-desert are large s<strong>and</strong>y<br />

stretches (“barkhan ” dunes) <strong>and</strong> “liman ” (flood meadow s in lower reaches <strong>of</strong><br />

semi-desert rivers). Flat areas (“plakor”) east <strong>of</strong> <strong>the</strong> Volga typically consist <strong>of</strong><br />

sub-shrub associations: Artemisia pauciflora + Kochia prostrata (Plate 10.5) ,<br />

interspersed with ephemerals <strong>and</strong> ephemeroids (e.g. Poa bulbosa , Tulipa spp.<br />

<strong>and</strong> Allium spp. ). Near shallow depressions, grasses consist <strong>of</strong> Festuca sulcata ,<br />

predominantly, followed by Agropyron pectiniforme , Stipa lessingiana <strong>and</strong><br />

Stipa capillata <strong>and</strong> a mixture <strong>of</strong> herbs. Incidentally, Festuca sulcata toge<strong>the</strong>r<br />

with Stipa capillata or Stipa lessingiana are also typical <strong>of</strong> “mountain steppe”<br />

at 1 000–3 000 m altitude.


398<br />

Plate 10.5<br />

Kochia prostrata<br />

Plate 10.6<br />

Artemisia lercheana<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world


The Russian Steppe 399<br />

MEADOW TYPES<br />

Liman<br />

Due to <strong>the</strong> exceptional flatness <strong>of</strong> <strong>the</strong> surrounding area, semi -desert rivers<br />

that spread out over enormous areas in spring <strong>of</strong>ten never reach <strong>the</strong> Caspian<br />

Sea, <strong>and</strong> form <strong>the</strong> meadow areas called limans (Mamin <strong>and</strong> Savel’eva,<br />

1986). Such areas can be 30–40 km wide, but shallow enough for wheeled<br />

transport to pass. Intense evaporation <strong>and</strong> high watertables promote <strong>the</strong><br />

development <strong>of</strong> solonchaks <strong>and</strong> solonetz, with predominance <strong>of</strong> halophytes<br />

or tolerant plants (Artemisia spp. (Plate 10.6), Puccinellia spp. , Atriplex<br />

verrucifera <strong>and</strong> Agropyron repens ). Patterns <strong>of</strong> concentric rings emerge,<br />

with water receding from <strong>the</strong> perimeter towards <strong>the</strong> centre, a pattern that<br />

is reflected in <strong>the</strong> vegetation . Artemisia monogyna <strong>and</strong> Atriplex verrucifera<br />

are in <strong>the</strong> outer rings that are rarely flooded <strong>and</strong> <strong>the</strong>n only for a few days.<br />

The area may be hundreds <strong>of</strong> hectares in size. Fur<strong>the</strong>r towards <strong>the</strong> centre,<br />

<strong>the</strong> rings or strips flooded once in two to three months with water in a layer<br />

<strong>of</strong> 30–60 cm until June/July produce st<strong>and</strong>s <strong>of</strong> almost pure Agropyron spp.<br />

that grows up to 150 cm <strong>and</strong> gives hay yields <strong>of</strong> 6 000–7 000 kg/ha. The<br />

centre <strong>and</strong> lowest parts <strong>of</strong> <strong>the</strong> liman may consist <strong>of</strong> reed thickets. In <strong>the</strong><br />

FSU, limans used to occupy over 7 million hectares. Needless to say, limans<br />

are <strong>of</strong> great economic significance in <strong>the</strong> Saratov <strong>and</strong> Volgograd region, <strong>and</strong><br />

may take much <strong>of</strong> <strong>the</strong> pressure <strong>of</strong>f <strong>the</strong> surrounding catchment grazing areas.<br />

Only minor ditches need to be constructed to lead water to areas with <strong>the</strong><br />

most valuable fodder plants (Agropyron repens, Agropyron pectiniforme <strong>and</strong><br />

Euagropyron spp., with Medicago sativa ssp. falcata, Bromus inermis <strong>and</strong><br />

Beckmannia spp. ).<br />

Typical plants <strong>of</strong> <strong>the</strong> favourable parts <strong>of</strong> <strong>the</strong> s<strong>and</strong>y (loam) stretches<br />

are Artemisia arenaria , A. astrachanica , Carex colchica , Kochia prostrata ,<br />

Agropyron sibericum , Stipa capillata <strong>and</strong> S. joannis . In lower places, <strong>the</strong> water<br />

table may be at 100–200 cm. Agropyron sibericum is <strong>the</strong> most valuable grass in<br />

this environment, yielding up to 1 000 kg DM/ha. Heavy grazing is believed<br />

to pulverize <strong>the</strong> top soil <strong>and</strong> increase Agropyron sibericum at <strong>the</strong> expense <strong>of</strong><br />

Artemisia astrachanica.<br />

Floodplain meadows<br />

The steppe is traversed (Plate 10.7), in a north-south direction, by some <strong>of</strong><br />

Europe’s largest rivers. When in spate, large areas on ei<strong>the</strong>r side are inundated.<br />

First in early spring , with <strong>the</strong> snow melting in <strong>the</strong> region itself; second, in late<br />

spring, when <strong>the</strong> waters <strong>of</strong> snow melting in <strong>the</strong> north arrive. Flood meadows<br />

are found over <strong>the</strong> whole length <strong>of</strong> <strong>the</strong> river course. The limans, in contrast, are<br />

confined to <strong>the</strong> lower reaches <strong>and</strong> in flat semi -desert country.<br />

In <strong>the</strong> FSU, <strong>the</strong> total area covered by floodplain meadows (Plate 10.8) was<br />

over 30 million hectares, divided equally between hay <strong>and</strong> grazing . Their value<br />

is rated higher <strong>the</strong> drier <strong>the</strong> nearby catchment. As with <strong>the</strong> limans described


400<br />

Plate 10.7<br />

Forest -steppe with a floodplain in <strong>the</strong> distance.<br />

Plate 10.8<br />

Forest -steppe floodplain.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

earlier, vegetation is much determined by <strong>the</strong> frequency, duration <strong>and</strong> depth <strong>of</strong><br />

flooding, as well as by <strong>the</strong> degree <strong>and</strong> quality <strong>of</strong> silt sedimentation. All sorts <strong>of</strong><br />

classifications have been thought out. Prolonged flooding over 40 days or more<br />

is withstood by Phalaris spp., Bromus inermis , Stipa pratensis <strong>and</strong> many Carex<br />

spp. (Table 10.5). Prolonged flooding is <strong>the</strong> rule in <strong>the</strong> floodplains <strong>of</strong> <strong>the</strong> greater<br />

steppe rivers (Dnepr, Don, Volga, Ural). Salination (solonchaks) is common in<br />

<strong>the</strong> outer reaches (upper flood meadow s).<br />

Three major zonal strips can be distinguished:<br />

S.S. MIKHALEV<br />

S.S. MIKHALEV


The Russian Steppe 401<br />

TABLE 10.5<br />

Distribution <strong>of</strong> flood meadow vegetation .<br />

Flooded for no<br />

more than 15–20<br />

days<br />

Flooded annually<br />

for 20–40 days<br />

Flooded annually<br />

for >40 days<br />

Woody <strong>and</strong><br />

shrubby<br />

vegetation<br />

Forest Zone Steppe Zone Desert Zone<br />

Festuca ovina, Nardus stricta,<br />

Phalaris spp.<br />

Herbs, Agrostis alba, white<br />

clover <strong>and</strong> o<strong>the</strong>r legumes.<br />

Tall gramineae with Phleum<br />

spp., Alopecurus spp., Festuca<br />

pratensis. Moist Deschampsia<br />

spp., Agrostis spp.<br />

Phalaris spp., with sedges, sedge<br />

– Bromus spp., Deschampsia spp.<br />

with Carex caespitosa <strong>and</strong> reeds.<br />

Bogged-up alder st<strong>and</strong>s, osier<br />

beds, tussocky swamps<br />

Conifers <strong>and</strong> partially deciduous<br />

forests, mainly in <strong>the</strong> central<br />

floodplains. Much willow <strong>and</strong><br />

alder<br />

Festuca sulcata, Euagropyron<br />

spp., <strong>of</strong>ten solonetzic or<br />

solonchakic with Artemisia spp.,<br />

Glycyrrhiza spp. <strong>and</strong> Puccinellia<br />

spp. Herbs with shrubs.<br />

Tall gramineae with Agropyron<br />

repens or Alopecurus spp., with<br />

a small quantity <strong>of</strong> herbs, Vicia<br />

cracca <strong>and</strong> Lathyrus spp. More<br />

rarely, Poa pratensis with herbs.<br />

Reeds, bulrushes, cattail,<br />

Agropyron spp., less <strong>of</strong>ten<br />

Alopecurus spp., Cirsium spp. <strong>and</strong><br />

Carex acuta, boggy osier beds, a<br />

few sedge marshes.<br />

Deciduous forests on <strong>the</strong><br />

floodplain near a river <strong>and</strong> on<br />

<strong>the</strong> central plain. Much willow<br />

<strong>and</strong> steppe shrubs.<br />

Poplar <strong>and</strong> Elaeagnus<br />

spp. forests, thorny<br />

shrubs, Glycyrrhiza<br />

spp., Alhagi spp.,<br />

Chenopodiaceae.<br />

Aeluropus littoralis,<br />

Agropyron spp. <strong>and</strong><br />

Glycyrrhiza spp.<br />

1. Close to <strong>the</strong> river: Artemisia dracunculus , A. pontica , A. campestris , Glycyrrhiza<br />

spp. (liquorice, in floodplains – a very common but high-tannin legume),<br />

Calamagrostis epigeios , Bromus inermis <strong>and</strong> Stipa capillata . Bromus inermis<br />

dominates in <strong>the</strong> lower parts.<br />

2. Central: Festuca sulcata , Euagropyron spp. <strong>and</strong> Agropyron spp. on <strong>the</strong> higher<br />

parts. Agropyron spp. dominant in <strong>the</strong> lower parts, with Carex spp. in <strong>the</strong><br />

depressions.<br />

3. Periphery, close to <strong>the</strong> watershed: Festuca sulcata , Stipa capillata <strong>and</strong> Agropyron<br />

sibiricum on <strong>the</strong> more elevated <strong>and</strong> non-saline sites, toge<strong>the</strong>r with various<br />

herbs <strong>and</strong> steppe shrubs. In <strong>the</strong> lower, solonetzic, parts Agropyron pectiniforme<br />

predominates, or Glycyrrhiza spp. with Agropyron spp. <strong>and</strong> Alopecurus spp.<br />

On solonchaks, Puccinellia spp. with Artemisia monogyna is most prevalent.<br />

Flood meadows are a principal source <strong>of</strong> hay . In <strong>the</strong> steppe itself, hay yields<br />

<strong>of</strong>f Euagropyron <strong>and</strong> Puccinellia meadows are 1 000 kg/ha. Tall-grass associations<br />

(species <strong>of</strong> Bromus , Agropyron , Festuca , Alopecurus <strong>and</strong> Phleum) give hay<br />

yields <strong>of</strong> 5 000 kg/ha. With Phalaris spp., yields can be even higher. Inevitably,<br />

abuse by overexploitation occurs. Grazing hay meadows in early spring or in<br />

late fall should be discouraged. Alternative uses for early or late hay on <strong>the</strong> one<br />

h<strong>and</strong> <strong>and</strong> for grazing on <strong>the</strong> o<strong>the</strong>r should be encouraged. Swamps with reed,<br />

bulrush <strong>and</strong> sedge are common. When deciduous trees (aspen , poplar, elm,<br />

oak) are found in <strong>the</strong> steppe, it is mostly close to <strong>the</strong> watercourses.<br />

FALLOW<br />

Mid-term to old fallow<br />

From <strong>the</strong> tenth to fifteenth years <strong>of</strong> fallow , Stipa spp. <strong>and</strong> Festuca sulcata begin<br />

to dominate <strong>and</strong> <strong>the</strong> l<strong>and</strong> resembles virgin steppe.<br />

Reeds. There are almost<br />

no sedge marshes.<br />

Poplars, tamarisks,<br />

oleaster (Elaeagnus spp.)<br />

forests. Few willows,<br />

many thorny shrubs <strong>and</strong><br />

shrub-Chenopodiaceae.


402<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Young fallow<br />

In <strong>the</strong> first year, botanical composition is little different from <strong>the</strong> previous<br />

arable weed composition, which reflects preceding crops <strong>and</strong> <strong>the</strong>ir husb<strong>and</strong>ry.<br />

The commonest plants are annuals such as Chenopodium album , Salsola kali ,<br />

Setaria spp. , Artemisia absinthium , A. sieversiana , Brassica campestris , Sonchus<br />

arvensis , Polygonum aviculare , P. convulvulus , Avena fatua , Camel ina spp. ,<br />

Thlaspi arvense , Lappula spp. , Sisymbrium spp. , Berteroa spp. , Lactuca spp. ,<br />

various thistles, Erigeron canadensis , Urtica cannabina , Crepis tectorum , Bromus<br />

tectorum , <strong>and</strong> Cannabis sativa . Perennials develop <strong>and</strong> begin to predominate:<br />

Cirsium arvense , Sonchus arvensis, Artemisia campestris , A. frigida , A. austriaca ,<br />

Melilotus alba , Gypsophila spp. , Achillea millefolium , Falcaria vulgaris , spurge<br />

(Euphorbiaceae) <strong>and</strong> Potentilla argentea , toge<strong>the</strong>r with rhizomatous grasses<br />

such as Agropyron repens , A. racemosum , Calamagrostis epigeios <strong>and</strong> Bromus<br />

inermis .<br />

Much higher herbage yields are obtained in <strong>the</strong> fallow phase. Larin (1956)<br />

speaks <strong>of</strong> 4 000–8 000 kg/ha <strong>of</strong> fresh <strong>and</strong> 1 000–2 000 kg/ha <strong>of</strong> dry matter,<br />

whereas <strong>the</strong> steppe produces no more than 800 kg/ha <strong>of</strong> hay ! Low productivity<br />

<strong>of</strong> <strong>the</strong> virgin steppe itself, in comparison with high productivity <strong>of</strong> (unsown)<br />

green fallow on top <strong>of</strong> intermittent crop yields, has no doubt been a major<br />

incentive to plough virgin steppe, at least on <strong>the</strong> richer <strong>and</strong> better watered<br />

soils.<br />

However, green fallows are heterogeneous <strong>and</strong> many <strong>of</strong> <strong>the</strong> herbaceous<br />

weeds are ignored by <strong>the</strong> grazing animal, such as Chenopodium album ,<br />

Artemisia spp. , Thlaspi spp., Salsola kali <strong>and</strong> o<strong>the</strong>r thistles. Herbs are grazed<br />

highly selectively, not least because <strong>of</strong> <strong>the</strong> wide range in date <strong>of</strong> flowering <strong>and</strong><br />

maturity. This is an advantage in summer , when <strong>the</strong> virgin steppe itself has<br />

dried <strong>of</strong>f. Hay is <strong>the</strong>n a better alternative <strong>and</strong> many Russian authors claim that<br />

when <strong>the</strong> mixed herbage is turned into silage, <strong>the</strong> rate <strong>of</strong> utilization is higher<br />

than when grazed. Conversely, Agropyron repens , Avena fatua , Bromus spp.<br />

<strong>and</strong> Setaria spp. , toge<strong>the</strong>r with herbs such as Sonchus arvensis , Polygonum<br />

convolvulus , Polygonum aviculare <strong>and</strong> Brassica campestris provide relatively<br />

good pasture , with 2 500–3 500 kg/ha <strong>of</strong> edible fresh matter.<br />

As <strong>the</strong> fallow period develops, rhizomatous perennials take over in about<br />

<strong>the</strong> fourth to fifth year: Agropyron repens on chestnut soils, A. racemosum on<br />

lighter soils, <strong>and</strong> Bromus inermis <strong>and</strong> Calamagrostis spp. This is <strong>the</strong> most valuable<br />

fallow phase from <strong>the</strong> herbage point <strong>of</strong> view. Agropyron hay is highly valued.<br />

Patches with Achillea spp., Artemisia austriaca <strong>and</strong> A. frigida may still be<br />

much in evidence. In <strong>the</strong> final stages <strong>of</strong> return to <strong>the</strong> virgin steppe, rhizomatous<br />

grasses <strong>and</strong> Artemisia spp. begin to give way to Festuca sulcata <strong>and</strong> Stipa spp.<br />

Avenues <strong>of</strong> steppe improvement<br />

L<strong>and</strong> <strong>and</strong> grass resources in <strong>the</strong> steppe zone are grossly underutilized. Most<br />

farms are overstocked, yet even on <strong>the</strong> better farms in favourable areas, yields


The Russian Steppe 403<br />

<strong>of</strong> both milk <strong>and</strong> cereals are not high enough. Such farming is prodigal with<br />

l<strong>and</strong>, nutrients <strong>and</strong> labour. In <strong>the</strong> continuing debate on how to preserve <strong>the</strong><br />

environmental resource base, it is high time to point out that <strong>the</strong>re can be no<br />

excuse for <strong>the</strong> deterioration <strong>of</strong> very large areas <strong>of</strong> l<strong>and</strong> in order to produce<br />

crops or livestock at such low efficiency (Boonman, 1993).<br />

Efforts towards intensification need not necessarily imply high costs. Lowinput<br />

strategies must optimize results from <strong>the</strong> efforts already made. Correct<br />

timing can double <strong>the</strong> effect <strong>of</strong> a particular input, e.g. early sowing or fertilizer<br />

application. Conversely, cash inputs should not be dismissed too lightly as<br />

“uneconomic” or “outside <strong>the</strong> reach <strong>of</strong> poor farmers” because it is well known<br />

that farmers recognize <strong>and</strong> adopt an improvement (e.g. using seed <strong>of</strong> a superior<br />

new cultivar) when <strong>the</strong>y see its value. Dairy production is a pr<strong>of</strong>itable part <strong>of</strong><br />

mixed farming since milk , if produced throughout <strong>the</strong> year, tends to comm<strong>and</strong><br />

high prices <strong>and</strong> bring in regular cash income. Great advances are <strong>of</strong>ten made by<br />

simple measures, especially in animal nutrition .<br />

As for grass resources , natural grassl<strong>and</strong>s may seen insignificant in <strong>the</strong>ir<br />

outward appearance <strong>and</strong> even less so in <strong>the</strong>ir response to improved husb<strong>and</strong>ry.<br />

In spring <strong>the</strong>ir start is slow <strong>and</strong> growth ceases earlier in autumn , compared with<br />

elite sown grasses. However with <strong>the</strong> same amount <strong>of</strong> intelligent care, primary<br />

(natural or virgin ) grassl<strong>and</strong> <strong>of</strong>ten needs no replacement at all by sown pasture<br />

grasses, let alone by legumes. Secondary grassl<strong>and</strong> (fallow l<strong>and</strong>) is not very<br />

static as it passes through its various stages <strong>of</strong> transition or succession, which<br />

differ with different husb<strong>and</strong>ry systems . If <strong>the</strong> rhizomatous or Agropyron<br />

stages are <strong>the</strong> most productive <strong>of</strong> all, it is advantageous to extend <strong>and</strong> maintain<br />

that phase for as long as possible. Rotational grazing shows advantage over<br />

continuous grazing in situations where <strong>the</strong> quantity <strong>of</strong> available herbage is low,<br />

<strong>and</strong> this is <strong>the</strong> case throughout <strong>the</strong> year on most <strong>of</strong> <strong>the</strong> steppe. The proportion<br />

<strong>of</strong> desirable grasses, legumes or herbs can be manipulated with <strong>the</strong> aid <strong>of</strong> <strong>the</strong><br />

grazing animal. Cutting can be ano<strong>the</strong>r useful tool. Many hay meadows, in<br />

well -watered if not periodically flooded areas, have developed under age-long<br />

haymaking . Apart from providing feed for winter , cutting would seem an automatic<br />

tool to control many shrubs.<br />

MANAGEMENT INTERVENTIONS<br />

Grazing<br />

Grazing is <strong>the</strong> most potent <strong>of</strong> biotic factors; many palatable, annual herbs<br />

disappear forthwith. Russian authors at one time generally held that taller<br />

grasses, especially those with sizeable aftermath, maintain <strong>the</strong>mselves well in<br />

hay meadows but much less under grazing only <strong>and</strong> are, consequently grazed<br />

out first. In <strong>the</strong> steppe, Stipa capillata is such an example, compared with<br />

Festuca sulcata , Euagropyron spp. <strong>and</strong> Koeleria gracilis . A note <strong>of</strong> caution needs<br />

to be sounded here. No doubt, some <strong>of</strong> <strong>the</strong> less competitive species may have<br />

long flowering culms. Between species, however, height <strong>of</strong> <strong>the</strong> vegetative sward


404<br />

Plate 10.9<br />

Poa bulbosa.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>and</strong> eventual height <strong>of</strong> flowering culms are poorly correlated. Lolium perenne<br />

<strong>and</strong> Festuca rubra are obvious contrasts. Also, it is not entirely clear what <strong>the</strong><br />

confounding effects in a sward are <strong>of</strong> growth stage, palatability <strong>and</strong> residual<br />

leaf area <strong>of</strong> any given species in competition with o<strong>the</strong>rs. Whe<strong>the</strong>r plants with<br />

“lower cauline-leaved ra<strong>the</strong>r than upper cauline-leaved foliage” are necessarily<br />

more competitive under grazing, is <strong>the</strong>refore doubtful. Competitiveness <strong>of</strong><br />

a genotype is also poorly related with potential herbage yield in pure st<strong>and</strong>s<br />

(Boonman <strong>and</strong> van Wijk, 1973). See also <strong>the</strong> sections on Haymaking <strong>and</strong> on<br />

Sown forage, below.<br />

Poa bulbosa (Plate 10.9) heads early in spring <strong>and</strong> is <strong>the</strong>reafter not eaten.<br />

Artemisia austriaca forms a rosette. As grazing intensity increases, Polygonum<br />

spp. <strong>and</strong> o<strong>the</strong>r annuals (Cruciferae, Compositae) remain <strong>and</strong> take over. The<br />

factors responsible are not necessarily <strong>the</strong> actual grazing itself but associated<br />

phenomena, such as compaction due to treading. The effects <strong>of</strong> grazing on soil<br />

compaction <strong>and</strong> soil moisture retention are recurrent <strong>the</strong>mes. Ho<strong>of</strong> impact is<br />

<strong>the</strong> cause <strong>of</strong> disappearance <strong>of</strong> moss <strong>and</strong> lichen from grassl<strong>and</strong> . Positive effects<br />

<strong>of</strong> scattered dung <strong>and</strong> urine are only evident when <strong>the</strong> pasture is sufficiently<br />

moist <strong>and</strong> stocked by at least 0.5 Livestock Unit (LU) per ha. In <strong>the</strong> steppe, <strong>the</strong>


The Russian Steppe 405<br />

effects are minimal, if not negative, because grass on <strong>and</strong> around dung pats is<br />

avoided by <strong>the</strong> grazing animal. The grazing animal is also believed to assist in<br />

plant pollination <strong>and</strong> in <strong>the</strong> distribution <strong>of</strong> seed, although volunteer seedlings<br />

contribute little to <strong>the</strong> productive sward (Rabotnov, 1969), <strong>and</strong> when <strong>the</strong>y do<br />

so it is mostly in <strong>the</strong> form <strong>of</strong> annuals to make up for loss <strong>of</strong> cover.<br />

Grazing (stocking) management<br />

Russian authors generally agree about <strong>the</strong> advantage <strong>of</strong> rotational grazing .<br />

If <strong>the</strong> ultimate aim is to match, if not to synchronize, <strong>the</strong> supply <strong>of</strong> available<br />

forage with <strong>the</strong> dem<strong>and</strong>s <strong>of</strong> <strong>the</strong> grazing animals or to maintain <strong>the</strong> vigour<br />

<strong>of</strong> acceptable pastures, <strong>the</strong>n various scenarios are possible. Haymaking is a<br />

strong Russian tradition. A lot <strong>of</strong> <strong>the</strong> debate in o<strong>the</strong>r countries such as USA<br />

<strong>and</strong> Australia on <strong>the</strong> pros <strong>and</strong> cons <strong>of</strong> rotational versus continuous grazing<br />

has ignored <strong>the</strong> very role <strong>and</strong> place <strong>of</strong> grass conservation . Grass conservation<br />

is essential to carry productive dairy stock through winter or dry season , but<br />

mowing is also a convenient husb<strong>and</strong>ry tool to regulate <strong>the</strong> supply <strong>of</strong> fresh<br />

grass <strong>and</strong> put a brake on grass growing too fast in <strong>the</strong> most favourable parts<br />

<strong>of</strong> <strong>the</strong> season (Boonman, 1993). It is obvious that no hay can be made under<br />

continuous grazing, so direct comparisons with rotational grazing may be<br />

meaningless. However, <strong>the</strong> lines dividing <strong>the</strong> two allegedly opposite systems<br />

are blurred. Are fields , grazed in daytime by animals that are housed elsewhere<br />

at night, grazed “continuously”, or is this not ra<strong>the</strong>r a fixed form <strong>of</strong> “rotational”<br />

grazing <strong>of</strong> 12 hours on + 12 hours <strong>of</strong>f? Is a field grazed continuously if for <strong>the</strong><br />

greater part <strong>of</strong> <strong>the</strong> dry season it is excluded from grazing? Fields grazed only<br />

once every 15 days, however lightly, are also difficult to portray as being grazed<br />

continuously. What if animals are te<strong>the</strong>red <strong>and</strong> moved daily within <strong>the</strong> same<br />

field? The arguments are <strong>of</strong>ten largely academic, but <strong>the</strong> choice in practice is<br />

<strong>of</strong>ten one <strong>of</strong> simple convenience.<br />

In Europe, with emphasis on dairying, which implies daily h<strong>and</strong>ling <strong>of</strong> <strong>the</strong><br />

animals, rotational grazing within fenced but relatively small areas is <strong>the</strong> rule.<br />

Rotational grazing goes h<strong>and</strong> in h<strong>and</strong> with crop-pasture rotation s in mixed<br />

farming, as all fields need to be protected from unwanted grazing. On large beef<br />

cattle estates, fencing, if any, may be reduced to <strong>the</strong> perimeter. Still, absence <strong>of</strong><br />

fencing <strong>and</strong> <strong>the</strong> imposition <strong>of</strong> herding does not imply that grazing is continuous .<br />

On <strong>the</strong> free range, grazing rotations are naturally imposed by <strong>the</strong> presence or<br />

absence <strong>of</strong> water <strong>and</strong> by seasonal differences in <strong>the</strong> vegetation , so that rotation<br />

may take <strong>the</strong> form <strong>of</strong> a grazing procession ra<strong>the</strong>r than <strong>of</strong> a rotation. Seasonal<br />

grazing areas may develop as separate entities (Boonman, 1993).<br />

Haymaking<br />

Like grazing , cutting also has direct <strong>and</strong> indirect effects. The haymaking<br />

season in Russia is relatively late, in hot mid-summer (July). Soil is exposed,<br />

topsoil dries out <strong>and</strong> is compacted by subsequent rain. In mixed vegetation ,


406<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

shade-loving species perish <strong>and</strong> this is particularly so in secondary grassl<strong>and</strong><br />

following forest clearing . Late-heading species are also at a disadvantage. As we<br />

have seen above (in Grazing), species with upper cauline-leaved foliage were<br />

believed to be at an advantage under haymaking regimes. It should be repeated<br />

that although species differ in <strong>the</strong>ir reaction to ei<strong>the</strong>r grazing or cutting <strong>and</strong>,<br />

as a result, produce a different botanical composition , it is difficult to attribute<br />

this to plant stature alone. Red clover <strong>and</strong> o<strong>the</strong>r herbs produced distinct types<br />

whe<strong>the</strong>r under cutting or grazing regimes with early <strong>and</strong> late heading types,<br />

respectively (Shennikov, 1941). Variation in cutting date also has considerable<br />

effect on species composition. L<strong>and</strong> that is continually used for haymaking<br />

becomes more <strong>and</strong> more impoverished <strong>and</strong> yields decline. In <strong>the</strong> forest zone,<br />

moss reappears. Floodplains in <strong>the</strong> Yenisei valley, after being cleared from<br />

willows <strong>and</strong> alders, changed under continuous haymaking, with dominance<br />

first by Calamagrostis langsdorffii , five to eight years later by Anthriscus<br />

silvestris <strong>and</strong> finally by Alopecurus pratensis (Vershinin, 1954).<br />

Fire<br />

Burning is an additional factor, if not a tool, in <strong>the</strong> management <strong>of</strong> steppe <strong>and</strong><br />

semi -desert . Some even believe that <strong>the</strong> tree-less steppe is <strong>the</strong> result <strong>of</strong> burning ,<br />

ra<strong>the</strong>r than <strong>of</strong> climate or soil. Burning is necessary to deal with “starika” – dead<br />

vegetation or st<strong>and</strong>ing hay <strong>of</strong> previous year(s). Burnt soil covered with ash<br />

warms up <strong>and</strong> dries out more quickly. Soil nitrogen is released. Subsequent<br />

herbage yield may not be increased, is ra<strong>the</strong>r decreased, but regrowth after<br />

burning is more nutritious. On <strong>the</strong> negative side, absence <strong>of</strong> cover by <strong>the</strong><br />

onset <strong>of</strong> winter adds to reduced snow <strong>and</strong> moisture retention for subsequent<br />

spring regrowth. In Festuca /Stipa /Artemisia steppe, burning increases Stipa<br />

spp. (Plate 10.10), Agropyron desertorum (Plate 10.11) <strong>and</strong> Festuca sulcata , but<br />

decreases Artemisia spp.<br />

Ploughing<br />

Of all <strong>the</strong> husb<strong>and</strong>ry measures, ploughing has <strong>the</strong> most dramatic effect on<br />

botanical composition . The effect is largely temporary, with <strong>the</strong> steppe returning<br />

to its “original” state within ten years. It is not clear whe<strong>the</strong>r <strong>the</strong> length <strong>of</strong> this<br />

moratorium is linearly related to <strong>the</strong> intensity <strong>and</strong> kind <strong>of</strong> cropping. Most <strong>of</strong><br />

<strong>the</strong> steppe has seen <strong>the</strong> plough at some stage, but <strong>the</strong> last <strong>and</strong> major onslaught<br />

in terms <strong>of</strong> area came in <strong>the</strong> 1950s, when millions <strong>of</strong> hectares <strong>of</strong> <strong>the</strong> remaining<br />

virgin steppe were sacrificed to cropping. Fortunately, however, <strong>the</strong> insight that<br />

permanent cropping was impossible without disastrous effects on soil quality<br />

prevailed. Fallowing was <strong>the</strong> rule, ideally until <strong>the</strong> “transition <strong>of</strong> fallow l<strong>and</strong><br />

into virgin l<strong>and</strong>”, as formulated by N.G. Vysotskii in 1915, was completed.<br />

Never<strong>the</strong>less in more recent decades, new policies <strong>and</strong> campaigns <strong>of</strong> heavy<br />

mechanization, combined with fertilizer , herbicides <strong>and</strong> irrigation, posed as<br />

serious a threat to <strong>the</strong> fallow as <strong>the</strong> plough had earlier meant to <strong>the</strong> steppe itself.


The Russian Steppe 407<br />

Plate 10.10<br />

Stipa species.<br />

Plate 10.11<br />

Agropyrum desertorum.<br />

Uncontrolled tumble-down fallow is a nuisance to subsequent cropping as it<br />

encourages ra<strong>the</strong>r than suppresses some <strong>of</strong> <strong>the</strong> principal weeds. Conversely,<br />

bare fallows, however desirable from <strong>the</strong> weed control <strong>and</strong> perhaps <strong>the</strong> water<br />

conservation points <strong>of</strong> view, are not conducive to restoring soil structure.


408<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Physical improvements<br />

The principal step in steppe improvement is to prevent deterioration by<br />

inferior or harmful material <strong>and</strong> species. Dominance <strong>of</strong> superior constituents<br />

cannot, in many instances, be achieved by grazing with a specific or varied<br />

kind <strong>of</strong> livestock alone. Intentional elimination <strong>of</strong> less desirable species <strong>and</strong><br />

starika is needed to complement <strong>the</strong> action <strong>of</strong> grazing, cutting or even burning .<br />

Oversowing (without adequate soil preparation) is rarely worth <strong>the</strong> effort<br />

as seedlings have great difficulty in establishing <strong>the</strong>mselves in an established<br />

sward, however sparse, except perhaps in genuinely humid environments.<br />

Some effective measures are: 1. removal <strong>of</strong> tussocks, shrubs <strong>and</strong> starika;<br />

2. removal <strong>of</strong> litter <strong>and</strong> brushwood after floods; 3. regulation <strong>of</strong> silt deposition<br />

on floodplain meadows; <strong>and</strong> 4. regulation <strong>of</strong> <strong>the</strong> water regime (drainage <strong>of</strong><br />

stagnant surface waters; liman irrigation; temporary flooding <strong>of</strong> floodplain<br />

meadows; construction <strong>of</strong> ice dykes; protection for snow retention).<br />

A lot <strong>of</strong> <strong>the</strong> clearing can be done with appropriate machinery <strong>and</strong> <strong>the</strong> same<br />

applies to <strong>the</strong> levelling that is needed to enable a field to be mown for hay . The<br />

removal <strong>of</strong> major deficiencies in moisture <strong>and</strong> fertility conditions contributes<br />

to <strong>the</strong> prevalence <strong>of</strong> more desirable grasses <strong>and</strong> or clovers; <strong>the</strong> same applies to<br />

regimes <strong>of</strong> alternate grazing <strong>and</strong> mowing on <strong>the</strong> one h<strong>and</strong> <strong>and</strong> <strong>of</strong> early <strong>and</strong> late<br />

mowing on <strong>the</strong> o<strong>the</strong>r. By assisting <strong>the</strong> correct distribution <strong>of</strong> spring waters,<br />

natural limans can be improved without great effort. Solonchaks <strong>and</strong> boggy<br />

places should not receive water.<br />

Snow retention through windbreaks <strong>and</strong> st<strong>and</strong>ing vegetation is ano<strong>the</strong>r<br />

effective measure in <strong>the</strong> forest steppe , steppe <strong>and</strong> semi -desert zones . Crop<br />

yields are greatly increased. In experiments by N.G. Andreev in <strong>the</strong> 1930s in<br />

Saratov Oblast, yields <strong>of</strong> Agropyron racemosum on fallow l<strong>and</strong> were raised by<br />

50–75 percent (see also Andreev, 1974a,b). Elsewhere, Stipa -Festuca sulcata<br />

pastures increased by 16–31 percent in yield (Larin, 1956). Snow retention<br />

can be combined with arrangement <strong>of</strong> ridges <strong>and</strong> furrows to block <strong>the</strong> flow <strong>of</strong><br />

water from melting snow.<br />

EXAMPLES OF THE EFFECT OF MANAGEMENT ON BOTANICAL<br />

COMPOSITION<br />

Stipa capillata , common on virgin steppe <strong>and</strong> old fallow in <strong>the</strong> Rostov,<br />

Volgograd <strong>and</strong> Stavropol areas, is troublesome since <strong>the</strong> seed has awns which,<br />

when caught in <strong>the</strong> wool not only spoil it, but bore through <strong>the</strong> skin <strong>and</strong><br />

when in greater numbers can cause death <strong>of</strong> goats <strong>and</strong> sheep . Burning has<br />

proved useless. Grazing with larger herbivores is recommended. Light grazing ,<br />

especially when early, <strong>and</strong> early mowing increases ra<strong>the</strong>r than decreases this<br />

grass . Pastures should not be grazed earlier than <strong>the</strong> heading phase <strong>of</strong> Festuca<br />

sulcata <strong>and</strong> Stipa lessingiana . These grasses will <strong>the</strong>n remain almost uneaten<br />

<strong>and</strong> will go to seed, while <strong>the</strong> later heading Stipa capillata will be eaten out<br />

selectively. Mowing <strong>of</strong> Stipa spp. must be conducted systematically from early


The Russian Steppe 409<br />

head-emergence right up to <strong>the</strong> flowering stage <strong>and</strong> aftermath growth must be<br />

grazed or mown in fall. These pastures are best grazed by cattle (<strong>and</strong> horses)<br />

<strong>and</strong>, when <strong>the</strong>re is little Stipa spp., by sheep. Stocking pressure should be<br />

increased for two to three consecutive years.<br />

Medicago polymorpha can be abundant in <strong>the</strong> steppe <strong>of</strong> European Russia .<br />

Although it is well eaten, M. polymorpha can be a most harmful plant because<br />

<strong>the</strong> pods spoil <strong>the</strong> wool. It can be suppressed by hard <strong>and</strong> prolonged grazing .<br />

Herbicides are also effective.<br />

Artemisia spp. (A. lercheana , A. pauciflora , A. astrachanica ) are reduced by<br />

burning , <strong>and</strong> grasses such as Festuca sulcata , Euagropyron spp. <strong>and</strong> Stipa spp.<br />

are encouraged.<br />

FERTILIZER<br />

Fertilizing <strong>the</strong> steppe is only mentioned in passing here. The effects <strong>of</strong><br />

nitrogen, phosphorus <strong>and</strong> potassium on yield, on quality <strong>and</strong> on botanical<br />

composition are well established (Smurygin, 1974) <strong>and</strong> differ little from what is<br />

found in similar soil conditions in <strong>the</strong> West. Unlike in steppe, phosphorus <strong>and</strong><br />

potassium are a pre-condition in lowl<strong>and</strong> marshy conditions <strong>and</strong> in acid soils<br />

in <strong>the</strong> north. The most spectacular fertilizer is nitrogen. However, l<strong>and</strong>-tocapital<br />

ratios in most <strong>of</strong> Russia are such that nitrogen fertilizer is best reserved<br />

to those situations where all <strong>the</strong> limiting factors mentioned earlier have been<br />

removed <strong>and</strong> where moisture conditions are favourable to enable <strong>the</strong> grass to<br />

benefit fully from <strong>the</strong> fertilizer applied. Such circumstances are rare. However,<br />

most <strong>of</strong> all, fertilizer should be pr<strong>of</strong>itable in terms <strong>of</strong> <strong>the</strong> produce from <strong>the</strong><br />

livestock fed from it. Most <strong>of</strong> <strong>the</strong> fertilizer is used on dairy farms in <strong>the</strong> forest<br />

zone in <strong>the</strong> north near <strong>the</strong> major cities. Yield increases in dry matter from 2<br />

to 8 t/ha were reported from <strong>the</strong> Tula <strong>and</strong> Kaluga regions (Larin, 1956). In <strong>the</strong><br />

view <strong>of</strong> <strong>the</strong> authors, grassl<strong>and</strong> <strong>and</strong> grazing will soon regain <strong>the</strong>ir rightful place<br />

in Russia at <strong>the</strong> expense <strong>of</strong> arable fodder crops such as maize grown for silage.<br />

More <strong>and</strong> better use will also have to be made <strong>of</strong> manure <strong>and</strong> urine, one <strong>of</strong> <strong>the</strong><br />

most neglected resources at present, especially from <strong>the</strong> storage point <strong>of</strong> view.<br />

Night grazing, through mobile camps if necessary, should be <strong>the</strong> rule, were it<br />

only to benefit by <strong>the</strong> manure <strong>and</strong> urine dropped on <strong>the</strong> spot.<br />

Legumes should also fare better under balanced manure <strong>and</strong> fertilizer<br />

regimes. In <strong>the</strong> view <strong>of</strong> <strong>the</strong> authors, clovers should be highly appreciated where<br />

<strong>the</strong>ir continuous presence can be assured. Inducing clovers by sowing <strong>and</strong><br />

o<strong>the</strong>r measures is <strong>of</strong>ten not only costly but also temporary in its effect. Savings<br />

on nitrogen fertilizers may be <strong>of</strong>fset by <strong>the</strong> extra requirements for o<strong>the</strong>r fertilizers,<br />

especially phosphate.<br />

As far as <strong>the</strong> steppe zone is concerned, <strong>the</strong> same development as regards<br />

fertilizer is forecast for <strong>the</strong> better-watered areas, <strong>the</strong> floodplains. P <strong>and</strong> K are<br />

usually not in short supply. Some botanical effects observed in <strong>the</strong> steppe<br />

vegetation are worth mentioning. At <strong>the</strong> Baskhir Experimental Station,


410<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Mikheev <strong>and</strong> Musatova (1940) found that Festuca sulcata gave way to Poa<br />

pratensis as <strong>the</strong> result <strong>of</strong> manure (30 t/ha). The same manure increased hay<br />

yield by (only) 1 900 kg/ha. Sedges also tend to be reduced <strong>and</strong> Agropyron spp.<br />

are encouraged.<br />

MID-TERM DEPRESSION<br />

Newly established grassl<strong>and</strong>s tend to go through a depression after a few years,<br />

<strong>and</strong> this was recognized early by Vil’yams. More persistent varieties, toge<strong>the</strong>r<br />

with better N-nutrition , have done much to alleviate this problem. Steppe<br />

fallow l<strong>and</strong> with Agropyron repens is highly valued. After a few years, however,<br />

it tends to give way to <strong>the</strong> less valuable Poa angustifolia <strong>and</strong> Festuca sulcata , <strong>and</strong><br />

yields may be reduced by half. Re-ploughing <strong>the</strong> field helps to rejuvenate <strong>the</strong><br />

Agropyron repens, especially when combined with N-fertilizer <strong>and</strong> when used<br />

first for hay <strong>and</strong> subsequently for grazing . The same applies to A. racemosum<br />

in <strong>the</strong> Volgograd area, western Siberia <strong>and</strong> Kazakhstan , where it formerly<br />

covered millions <strong>of</strong> hectares. Hay yields were <strong>of</strong>ten doubled. Measures to<br />

promote snow retention are essential. The introduction <strong>of</strong> machinery like <strong>the</strong><br />

rotovator facilitated destroying <strong>the</strong> existing sward. A more recent <strong>and</strong> valuable<br />

aid is glyphosate as an effective but very safe herbicide.<br />

SOWN FORAGE<br />

For many engaged in increased fodder production, all <strong>the</strong> measures mentioned<br />

above are not effective enough. Refuge is sometimes sought in sowing<br />

perennial grasses, with or without legumes <strong>and</strong> with or without intermittent<br />

arable cropping. However annual fodders such as maize for silage <strong>and</strong> oats,<br />

lent <strong>the</strong>mselves more easily to <strong>the</strong> industrial style agriculture sought after in <strong>the</strong><br />

FSU. A lot <strong>of</strong> maize is grown in Russia in areas north <strong>of</strong> latitude 55°N, which<br />

are considered too cold in <strong>the</strong> West (e.g. Scotl<strong>and</strong>, Denmark), <strong>and</strong> many <strong>of</strong> <strong>the</strong><br />

areas are too dry for silage maize. Late springs with late frosts <strong>and</strong> winter frosts<br />

as early as <strong>the</strong> first half <strong>of</strong> September shorten <strong>the</strong> growing season for maize<br />

even more radically. Existing, commercial early-maturing hybrids are not early<br />

enough for large parts <strong>of</strong> Russia; <strong>the</strong> problem has still not been solved, nei<strong>the</strong>r<br />

agronomically nor economically, let alone from <strong>the</strong> environmental point <strong>of</strong><br />

view.<br />

Short <strong>of</strong> complete ploughing <strong>and</strong> reseeding , over-sowing has been recommended<br />

at times. Perhaps this was inspired by positive results obtained with<br />

over-sowing in areas that had been cleared <strong>of</strong> trees <strong>and</strong> shrubs in <strong>the</strong> more<br />

nor<strong>the</strong>rly forest zone. However doubtful in economic terms such advice<br />

might be for steppe conditions, <strong>the</strong> species recommended are worth mentioning:<br />

Bromus inermis , B. erectus , Agropyron pectiniforme , A. sibiricum ,<br />

A. desertorum , Euagropyron spp., Festuca sulcata , Medicago sativa , M. s. subsp.<br />

falcata, Melilotus alba , sainfoin (Onobrychis viciifolia ) <strong>and</strong> Kochia prostrata<br />

(Chenopodiaceae). In regions east <strong>of</strong> <strong>the</strong> Urals with abundant late-summer


The Russian Steppe 411<br />

rainfall , annual forages such as oats, rye, Sorghum sudanense, vetches <strong>and</strong><br />

peas were experimented with for over-sowing but <strong>the</strong> recommended list is<br />

considerably reduced for normal pasture sowing (after proper l<strong>and</strong> cultivation<br />

): Medicago sativa, M. s. subsp. falcata, Onobrychis, Bromus inermis, <strong>and</strong><br />

Agropyron pectiniforme with, in addition, for <strong>the</strong> dry steppe: Agropyron sibiricum<br />

<strong>and</strong> Festuca sulcata (Larin, 1956). No indications exist as to what extent<br />

such sowings have been experimental or commercial, nor to what extent implementation<br />

was hindered by <strong>the</strong> obvious limitations <strong>of</strong> seed availability <strong>of</strong> some<br />

<strong>of</strong> <strong>the</strong>se unusual species. Remarkable in this listing is <strong>the</strong> absence <strong>of</strong> Festuca<br />

arundinacea . More recent experience has shown that Agropyron cristatum is<br />

perhaps <strong>the</strong> best grass for sowing (T. Veenstra, pers. comm.).<br />

As was customary at <strong>the</strong> time, complex mixtures were considered superior<br />

to single-species as a matter <strong>of</strong> course, on purely <strong>the</strong>oretical grounds, such as<br />

risk aversion . More modern thinking – not shared by biodiversity adherents<br />

– has it that less competitive species, however productive, are better left out<br />

from mixtures from <strong>the</strong> start because <strong>the</strong>y are doomed to disappear rapidly<br />

from <strong>the</strong> sward anyway. The aim should be <strong>the</strong> “ecological combining ability”<br />

<strong>of</strong> potential partners, an ability that does not necessarily have much to do<br />

with morphological or botanical differences. As long as alleged advantages <strong>of</strong><br />

complex mixtures cannot be substantiated, simple mixtures are advocated, if<br />

only to reduce seed costs. A considerable amount <strong>of</strong> energy was spent in FSU<br />

days on calculating “norms” for sowing <strong>of</strong> each species in accordance with<br />

Gostst<strong>and</strong>art (All-Union State St<strong>and</strong>ards).<br />

THE DILEMMA<br />

Many observers regard virgin steppe as not productive enough as a grazing<br />

or fodder resource. Sown pastures have great potential but require a high<br />

level <strong>of</strong> expertise <strong>and</strong> are <strong>of</strong>ten too short-lived. Continuous arable cropping<br />

consists mostly <strong>of</strong> wheat, with yields <strong>of</strong> grain scarcely higher than that <strong>of</strong> <strong>the</strong><br />

old steppe’s hay . The irony is that in FSU over half <strong>of</strong> <strong>the</strong> grain was fed back<br />

to livestock. The steppe is on <strong>the</strong> one h<strong>and</strong> too fertile not to be cropped <strong>and</strong><br />

to be left to “ranching”, but on <strong>the</strong> o<strong>the</strong>r too dry to be cropped intensively<br />

<strong>and</strong> permanently. All three pathways – grazing, cropping <strong>and</strong> an integration <strong>of</strong><br />

<strong>the</strong> two – have in <strong>the</strong> past been explored, both empirically <strong>and</strong> experimentally.<br />

In <strong>the</strong> view <strong>of</strong> <strong>the</strong> authors, <strong>the</strong> best alternative l<strong>and</strong> use is one crop <strong>of</strong> wheat<br />

alternated with long spells under grass fallow , or sown pastures <strong>of</strong> shorter<br />

duration. Alfalfa is grown separately on <strong>the</strong> best <strong>and</strong> irrigated l<strong>and</strong>. Grass hay<br />

is brought in from <strong>the</strong> floodplains. Marginal l<strong>and</strong> is best returned to steppe.<br />

CROP-PASTURE ROTATION S<br />

V.R. Vil’yams (1922, 1951) was one <strong>of</strong> <strong>the</strong> first scientists to publish research<br />

results on <strong>the</strong> subject (“travopol’naya”) <strong>and</strong> on <strong>the</strong> special role <strong>of</strong> grasses in soil<br />

fertility. Crop rotation regimes used to be strictly preached, but in FSU practice


412<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

it was lip service to <strong>the</strong> “rotation” doctrine ra<strong>the</strong>r than consistent application<br />

<strong>of</strong> Vil’yams’ example. Much value was attached to having a fodder crop or a<br />

grain legume in <strong>the</strong> rotation, irrespective <strong>of</strong> <strong>the</strong> fact that <strong>the</strong>se covered <strong>the</strong> soil<br />

for no more than six months <strong>and</strong> were harvested whole, without much residue<br />

left or returned to <strong>the</strong> soil. Maize is <strong>of</strong>ten harvested first for grain <strong>and</strong> in <strong>the</strong><br />

second pass for <strong>the</strong> stalks <strong>and</strong> foliage made into silage. If a crop-rotation effect<br />

does appear it is perhaps just as likely to be due to “just ano<strong>the</strong>r crop” than to<br />

<strong>the</strong> specific effects usually attributed to semi -permanent grasses or legumes. In<br />

actual fact, <strong>the</strong> effect may be simply one <strong>of</strong> suppression <strong>of</strong> specific weeds, pests<br />

or diseases, <strong>and</strong> may also be brought about by o<strong>the</strong>r arable crops .<br />

PHYSICAL EFFECTS OF GRASSES ON THE SOIL<br />

Soil science used to be highly developed in Russia , not only soil classification .<br />

The unique role that grass plays in restoring soil quality lost after cropping<br />

was recognized in Russia earlier than in <strong>the</strong> West. In investigations carried out<br />

by N.I. Savvinov at <strong>the</strong> Saratov Malouzenski Solonetz Station, <strong>the</strong> length <strong>of</strong><br />

all roots in <strong>the</strong> top 40 cm soil layer was, six months after sowing, almost three<br />

times greater in Agropyron pectiniforme than in alfalfa <strong>of</strong> <strong>the</strong> same age (Larin,<br />

1956). Intensity, ra<strong>the</strong>r than depth, <strong>of</strong> rooting was considered important.<br />

Soil organic matter <strong>and</strong> methods <strong>of</strong> increasing it are commonly associated<br />

with high soil quality, because a soil rich in organic matter is <strong>of</strong>ten productive<br />

<strong>and</strong> can sustain arable cropping for long periods. Such a soil will also trap rainwater<br />

ra<strong>the</strong>r than let it cause erosion (Klimentyev <strong>and</strong> Tikhonov, 1995).<br />

Cultivation, in contrast, is accompanied by a decline in organic matter <strong>and</strong><br />

by subsequent mineralization. Under continuous cropping without inputs,<br />

little organic matter is added or returned whereas losses are much greater. In<br />

capitalized farming systems in temperate climates, with high input <strong>of</strong> fertilizers<br />

<strong>and</strong> mechanical or chemical weed control , organic matter is commonly<br />

regarded as less critical <strong>and</strong> organic matter may be left to find its own level <strong>and</strong><br />

may be maintained by crop residues . High, albeit not <strong>the</strong> highest, yields have<br />

been obtained under continuous cropping without special attention to adding<br />

organic matter.<br />

Evidence has been presented to indicate that a grass break in crop rotations<br />

preserves soil structure <strong>and</strong> punctuates <strong>the</strong> nutrient drain in crop removal.<br />

Improved structure may reveal itself in less erosion or in better plant establishment<br />

<strong>and</strong>, finally, in better yields . However, <strong>the</strong> immediate effects on topsoil<br />

structure are <strong>the</strong> most obvious. Erosion control also applies to conditions <strong>of</strong><br />

grazing . Overgrazed l<strong>and</strong> is not only more liable to erosion, it suffers more<br />

from drought , due to loss <strong>of</strong> snow cover <strong>and</strong> <strong>of</strong> rainwater.<br />

MIXED FARMING BASED ON CROP-GRASS ROTATIONS<br />

In Russia , alternatives to deal effectively with maintaining soil quality <strong>and</strong><br />

combating soil erosion are not within easy reach <strong>of</strong> <strong>the</strong> small-scale farmer


The Russian Steppe 413<br />

<strong>and</strong> – unless good basic husb<strong>and</strong>ry is guaranteed – <strong>of</strong>ten not economically<br />

justified. The impression is that continuous cropping cannot be sustained<br />

on <strong>the</strong> majority <strong>of</strong> soils at <strong>the</strong> present low levels <strong>of</strong> fertilizer , biocides <strong>and</strong><br />

mechanization. In present-day farming practice, however, improved production<br />

<strong>of</strong> grass for feeding cattle is <strong>the</strong> main motive inducing farmers to plant pastures.<br />

If stock that help to improve soil fertility are kept, <strong>the</strong>y should <strong>the</strong>mselves be<br />

pr<strong>of</strong>itable. In <strong>the</strong> same fashion it is not pr<strong>of</strong>itable to grow legumes for <strong>the</strong> main<br />

purpose <strong>of</strong> fixing nitrogen.<br />

The large expansion in arable area in <strong>the</strong> 1950s <strong>and</strong> 1960s in <strong>the</strong> FSU was<br />

at <strong>the</strong> expense <strong>of</strong> <strong>the</strong> steppe. The first crops after ploughing were good. Most<br />

<strong>of</strong> <strong>the</strong> remaining grassl<strong>and</strong> was soon broken <strong>and</strong> converted into arable l<strong>and</strong>.<br />

Very little new grass was sown . It was perhaps not appreciated that <strong>the</strong> fertility<br />

encountered had been built up through grassl<strong>and</strong>. Conversely, forage production<br />

was promoted primarily as a means <strong>of</strong> improving animal production.<br />

Efforts were directed at separate components, e.g. dairying based on maize<br />

silage or on zero-grazing , with little regard for <strong>the</strong> soil-degrading effect this<br />

practice has.<br />

In <strong>the</strong> 1970s <strong>and</strong> 1980s in <strong>the</strong> FSU, direct grazing became rare <strong>and</strong> was<br />

sacrificed to large-scale stall-feeding <strong>and</strong> to zero-grazing operations based on<br />

fodder crops such as maize <strong>and</strong> oats. Many <strong>of</strong> <strong>the</strong>se operated on <strong>the</strong> extreme<br />

edges <strong>of</strong> <strong>the</strong> mixed -farming scene, <strong>and</strong> lost sight <strong>of</strong> <strong>the</strong> crop-livestock integration<br />

perspective.<br />

In <strong>the</strong> past decade, by contrast, village herds have increasingly began to<br />

roam <strong>the</strong> surrounding countryside. Communal or public grazing resource s<br />

are increasingly threatened by livestock privately owned. Workable solutions<br />

are needed to come to <strong>the</strong> aid <strong>of</strong> vulnerable grassl<strong>and</strong>s, livestock, crops <strong>and</strong><br />

soils, especially for <strong>the</strong> small mixed -farm family. Although <strong>the</strong> former large<br />

Kolkhoz-style arable farming units may be retained as <strong>the</strong> central <strong>and</strong> collective<br />

core, livestock production will continue to become more <strong>and</strong> more family-based.<br />

Sooner or later, family herds will have to be fed from family-run<br />

pastures <strong>and</strong> from by-products <strong>of</strong> <strong>the</strong> arable operations. This should provide a<br />

sound basis for crop-pasture rotation s.<br />

CONCLUSIONS<br />

The political <strong>and</strong> social changes <strong>of</strong> <strong>the</strong> past fifteen years have had a marked<br />

effect on grassl<strong>and</strong> <strong>and</strong> livestock production systems . The great industrial<br />

livestock units based on indoor feeding are now few, <strong>and</strong> many have broken up<br />

for economic reasons. Much <strong>of</strong> <strong>the</strong> ruminant livestock is now in small familyowned<br />

herds, <strong>of</strong>ten too small for economic herding . A fresh approach to<br />

grazing rights <strong>and</strong> stock management is needed to ensure that <strong>the</strong> new grazing<br />

situation maintains livestock production while avoiding environmental damage<br />

through overuse <strong>of</strong> nearby grassl<strong>and</strong> while neglecting more distant pastures.<br />

This will require interventions in two fields : first, facilitating <strong>the</strong> development


414<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>of</strong> group herding so that families can collaborate to hire a common herder<br />

to manage <strong>the</strong>ir joint herds; <strong>and</strong>, second, by allocating grazing rights <strong>and</strong><br />

responsibility for pasture maintenance to such groups.<br />

Much marginal l<strong>and</strong> has been ploughed to produce meagre crops <strong>of</strong> cereals,<br />

which has largely been used for stock feed. Such l<strong>and</strong> can be returned to<br />

grassl<strong>and</strong> fairly simply: steppe is relatively easy to restore when cropl<strong>and</strong> is<br />

ab<strong>and</strong>oned to fallow . If economic conditions are propitious, it can be reseeded<br />

– reseeding techniques <strong>and</strong> adapted ecotypes <strong>of</strong> suitable grasses are known.<br />

Sown grasses may bring temporary relief , but <strong>the</strong>y should be sufficiently persistent<br />

<strong>and</strong> economically justified, compared with spontaneous fallow grasses.<br />

Sown pastures require careful husb<strong>and</strong>ry <strong>and</strong> considerable expertise. Return<br />

<strong>of</strong> large areas <strong>of</strong> unpr<strong>of</strong>itable cropl<strong>and</strong> to grassl<strong>and</strong> makes sense both environmentally<br />

<strong>and</strong> economically.<br />

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Smurygin, M.A. 1974. Basic trends <strong>of</strong> grassl<strong>and</strong> research in <strong>the</strong> USSR. pp. 76-88,<br />

in: Proceedings <strong>of</strong> <strong>the</strong> 12th International Grassl<strong>and</strong> Congress. Moscow, Russia,<br />

11–24 June 1974.<br />

Sorokina, V.A. 1955. Some results <strong>of</strong> applying <strong>the</strong> methods <strong>of</strong> L.G. Ramenskii.<br />

Herbage Abstracts (Review Article), 25(4): 209–218.<br />

Sukachev, V.N. 1945. Biogeotsenologiya i fitotsenologiya [Biogeocoenology <strong>and</strong><br />

phytocoenology]. Doklady An SSSR, 47.<br />

Vershinin, L.G. 1954. Sroki senokosheniya na zalivnykh lugakh nizov’ev Eniseya<br />

[Times <strong>of</strong> haymaking on flood meadow s <strong>of</strong> <strong>the</strong> lower reaches <strong>of</strong> <strong>the</strong> Yenisey].<br />

Leningrad, Russia : Selkhozgiz.<br />

Vil’yams, V.R. 1922. Estestwenno-nauchnye osnowy lugowodstwa, ili lugowedeniye<br />

[Natural <strong>and</strong> Historical Fundamentals <strong>of</strong> Grassl<strong>and</strong> Husb<strong>and</strong>ry]. Moscow,<br />

Russia : ”Nowaya Derewnya”.


416<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Vil’yams, V.R. 1951. Izbrannie sotchineniya po woprosam bor’bi c zasuchoi.”Klassiki<br />

russkoi agronomii w bor’be s zasuchoi” [Classics <strong>of</strong> Russian agronomy in combating<br />

drought ]. Moscow, Russia : Izdatel’stwo Academii Nauk SSSR.<br />

Whyte, R.O. 1974. Tropical Grazing L<strong>and</strong>s. Communities <strong>and</strong> Constituent Species.<br />

The Hague, The Ne<strong>the</strong>rl<strong>and</strong>s: W. Junk.


O<strong>the</strong>r grassl<strong>and</strong>s 417<br />

Chapter 11<br />

O<strong>the</strong>r grassl<strong>and</strong>s<br />

INTRODUCTION<br />

As indicated in Chapter 1, this section attempts to cover some <strong>of</strong> <strong>the</strong> gaps in <strong>the</strong><br />

description <strong>of</strong> grassl<strong>and</strong> zones <strong>and</strong> <strong>the</strong>ir problems. Summaries <strong>of</strong> <strong>the</strong> grassl<strong>and</strong><br />

<strong>and</strong> grazing situation in areas not addressed in <strong>the</strong> main chapters are presented.<br />

The basis <strong>of</strong> <strong>the</strong> summaries is <strong>the</strong> series <strong>of</strong> Country Pasture Resource Pr<strong>of</strong>iles<br />

published by <strong>the</strong> FAO Grassl<strong>and</strong> <strong>and</strong> Pasture Crops Group <strong>and</strong> which provide<br />

basic information about <strong>the</strong> pasture <strong>and</strong> forage resources <strong>of</strong> countries; <strong>the</strong>se<br />

pr<strong>of</strong>iles provide more detailed information <strong>and</strong> extensive bibliographies (see<br />

<strong>the</strong> Web site <br />

<strong>and</strong> <strong>the</strong> CD-ROM “Country Pasture Pr<strong>of</strong>iles” (Reynolds, Suttie <strong>and</strong> Staberg,<br />

2005)); developing countries have been <strong>the</strong> main focus since this is FAO’s<br />

major zone <strong>of</strong> interest.<br />

AFRICA<br />

North Africa<br />

This section draws on Pasture Pr<strong>of</strong>iles for Algeria (Nedjraoui, 2001), Morocco<br />

(Berkat <strong>and</strong> Tazi, 2004) <strong>and</strong> Tunisia (Kayouli, 2000). These North Africa n<br />

countries have large areas <strong>of</strong> grazed l<strong>and</strong> <strong>and</strong> many pastoral features in<br />

common, <strong>and</strong> stretch from 13°E to 12°E <strong>and</strong> from 19°N to 37°19�N; vast areas<br />

<strong>of</strong> <strong>the</strong>ir sou<strong>the</strong>rn part is desert . The relief is in two broad categories, <strong>the</strong> Atlas<br />

<strong>and</strong> <strong>the</strong> Sahara. The Atlas are a group <strong>of</strong> ranges running southwest to nor<strong>the</strong>ast<br />

roughly adjacent <strong>and</strong> parallel to <strong>the</strong> Mediterranean coastline. South <strong>of</strong> <strong>the</strong><br />

Atlas, a series <strong>of</strong> steppic plateaux descend to <strong>the</strong> Sahara, which is a great barrier<br />

between <strong>the</strong> Mediterranean zone <strong>and</strong> <strong>the</strong> tropics.<br />

The nor<strong>the</strong>rn mountains capture most <strong>of</strong> <strong>the</strong> precipitation <strong>and</strong> agriculture<br />

l<strong>and</strong>s are concentrated in <strong>the</strong> north; <strong>the</strong> highest Atlas l<strong>and</strong>s are forest <strong>and</strong><br />

summer grazing . The climate is typically Mediterranean, with hot summers<br />

<strong>and</strong> rain occurring during <strong>the</strong> cool season. Temperature is governed both by<br />

altitude <strong>and</strong> <strong>the</strong> degree <strong>of</strong> continentality. The region has all <strong>the</strong> Mediterranean<br />

bioclimates, from perhumid to perarid for bioclimatic levels, <strong>and</strong> from cold to<br />

hot for temperatures.<br />

Livestock are important throughout <strong>the</strong> zone <strong>and</strong> in most farming systems :<br />

sheep are <strong>the</strong> most important <strong>and</strong> are <strong>the</strong> main livestock <strong>of</strong> <strong>the</strong> steppe, although<br />

small flocks are kept in most areas for domestic use; several local breeds are<br />

used according to regional adaptation. Cattle are mainly kept in <strong>the</strong> nor<strong>the</strong>rn<br />

farming areas <strong>and</strong> are commonly fed on crop residues , by-products <strong>and</strong> concentrates;<br />

<strong>the</strong> traditional breeds were taurins <strong>of</strong> <strong>the</strong> Atlas Brown type , but <strong>the</strong>re<br />

are now many crosses with exotic dairy breeds, notable black <strong>and</strong> white ones.


418<br />

Plate 11.1<br />

Trifolium fragiferum .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Goats are widespread although much less numerous than sheep. Camels are a<br />

mainstay in <strong>the</strong> desert areas.<br />

The mountains <strong>of</strong> <strong>the</strong> north once had a Mediterranean forest vegetation,<br />

which has been greatly reduced by clearing for agriculture or felling; in some<br />

places forest is degraded to matorral . The steppes are <strong>the</strong> great traditional grazing<br />

l<strong>and</strong>s ; Artemisia steppes (Artemisia herba-alba ) are extremely widespread<br />

<strong>and</strong> <strong>the</strong>re are large st<strong>and</strong>s <strong>of</strong> Stipa tenacissima (‘alfa) <strong>and</strong> Lygeum spartum<br />

(esparto ). Stipa tenacissima <strong>and</strong> Lygeum spartum are mediocre fodders but are<br />

commercially important since <strong>the</strong>y are harvested for papermaking <strong>and</strong> basketry<br />

on such a scale that <strong>the</strong>se populations have been damaged. An unusual<br />

browse formation in western Morocco is <strong>the</strong> argan (Argania spinosa ) zone,<br />

where this shrub is browsed by goats , which clamber into <strong>the</strong> trees to feed;<br />

argan seed yields an edible oil.<br />

Cereals are <strong>of</strong>ten grown in rotation with fallow , which produces large<br />

areas <strong>of</strong> high-quality grazing . Many Mediterranean fallow plants have been<br />

domesticated in Australia <strong>and</strong> incorporated into cereal-fallow rotations;<br />

<strong>the</strong>re have been many attempts to re-import <strong>the</strong>se plants <strong>and</strong> <strong>the</strong> associated<br />

technology into North Africa but with very limited success, as large cereal<br />

farmers are not livestock owners <strong>and</strong> fallows are <strong>of</strong>ten let to passing transhumant<br />

herds, which graze <strong>the</strong>m to bare ground. The rich pastoral flora <strong>of</strong> <strong>the</strong><br />

fallows includes: Avena spp., Bromus spp. , Hordeum spp., Lolium rigidum ,<br />

Hippocrepis spp., Lathyrus aphaca , Lotus spp. , Medicago ciliaris , M. littoralis ,<br />

SARDI


O<strong>the</strong>r grassl<strong>and</strong>s 419<br />

M. orbicularis , M. polymorpha (<strong>the</strong> commonest, with many highly productive<br />

forms), M. rugosa , M. scutellata , M. truncatula , Melilotus spp. , Scorpiurus spp.<br />

<strong>and</strong> Trifolium spp.<br />

Sown pasture is uncommon in <strong>the</strong> region, but many valuable pasture plants<br />

native to North Africa have been widely used elsewhere. They include Dactylis<br />

glomerata , Festuca arundinacea , Lolium multiflorum , L. rigidum , L. perenne ,<br />

Phalaris aquatica , Hedysarum coronarium , Medicago sativa <strong>and</strong> Trifolium<br />

fragiferum (see Plate 11.1).<br />

Fodder is grown in specialized dairy enterprises in <strong>the</strong> farming areas; oats are<br />

a common winter fodder, as is maize in summer . Oat hay is produced by large<br />

cereal farms , mainly for sale, <strong>and</strong> dem<strong>and</strong> <strong>of</strong>ten exceeds supply <strong>and</strong> prices are<br />

high, making it an expensive feed per unit <strong>of</strong> energy. Oat <strong>and</strong> hay production in<br />

<strong>the</strong> region are described by Chaouki et al. (2004).<br />

Traditional sheep rearing was based on transhumance , with variants according<br />

to local conditions; frequently it involved moving to agricultural l<strong>and</strong>s<br />

to graze stubbles <strong>and</strong> straw in summer , <strong>and</strong> to <strong>the</strong> desert fringe in winter .<br />

Recently, transhumance has been greatly reduced: much <strong>of</strong> <strong>the</strong> steppe has been<br />

cleared for rainfed cereal growing <strong>of</strong> doubtful sustainability , even down to <strong>the</strong><br />

300 mm isohyet in some cases; this clearing was <strong>of</strong>ficially encouraged <strong>and</strong> those<br />

who “developed” <strong>the</strong> steppe by clearing gained title to <strong>the</strong>ir holding. Many<br />

<strong>of</strong> <strong>the</strong> rural population are now agropastoralists, with a little cropl<strong>and</strong> <strong>and</strong><br />

small flocks. The human population <strong>of</strong> <strong>the</strong> steppe has exploded: in Algeria <strong>the</strong><br />

steppe population was 925 700 in 1954; in 2003 it was about 4 000 000; during<br />

<strong>the</strong> same period, <strong>the</strong> number <strong>of</strong> nomads only rose from 595 240 to 625 000.<br />

Nomadism in Algeria is now sporadic <strong>and</strong> most only make short movements,<br />

<strong>the</strong> feed shortage being met by crop residues , stubble grazing <strong>and</strong> purchased<br />

grain; only owners <strong>of</strong> large flocks continue long migration, <strong>and</strong> <strong>the</strong>y are<br />

equipped with transport.<br />

Tunisia shows a similar pattern <strong>of</strong> disappearing transhumance . Increasing<br />

settlement <strong>of</strong> nomads, increase in sheep numbers in marginal zones , expansion<br />

<strong>of</strong> cultivation <strong>and</strong> reduction <strong>of</strong> fallow have greatly increased pressure on<br />

available l<strong>and</strong> <strong>and</strong> reduced soil fertility. Grazing l<strong>and</strong> is becoming scarcer <strong>and</strong><br />

meagre as more <strong>and</strong> more l<strong>and</strong> is put under crops . Sheep <strong>and</strong> goats traditionally<br />

grazed on hillsides <strong>and</strong> steppes in winter in <strong>the</strong> centre, <strong>and</strong> stubble in summer<br />

in <strong>the</strong> north during transhumance. This continues, but is much reduced.<br />

Increased purchasing power has raised <strong>the</strong> dem<strong>and</strong> for livestock products so<br />

farmers are changing to intensive sheep rearing with feed supplements, based<br />

on imported cereals.<br />

West Africa<br />

West Africa has great grazing areas, between <strong>the</strong> humid forest in <strong>the</strong> south <strong>and</strong> <strong>the</strong><br />

desert in <strong>the</strong> north. Rainfall decreases from south to north so <strong>the</strong> vegetation belts<br />

run east-west. In <strong>the</strong> extreme north <strong>the</strong> Saharan zone is hyper-arid with skeletal


420<br />

Plate 11.2<br />

Millet, a major crop in <strong>the</strong> arid <strong>and</strong> semi -arid areas.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

soils; crops are only possible under special conditions; stock-rearing, where it is<br />

possible, reigns without competition . Detailed descriptions are available in <strong>the</strong><br />

pasture pr<strong>of</strong>iles for Burkina Faso (Kagoné, 2002), Mali (Coulibally, 2003) Niger<br />

(Geesing <strong>and</strong> Djibo, 2002) <strong>and</strong> Ghana (Oppong-Anane, 2001).<br />

The Sahelian zone , from <strong>the</strong> Atlantic through Chad , is arid , with a summer<br />

rainfall <strong>of</strong> 250–500 mm <strong>and</strong> a dry season <strong>of</strong> nine to eleven months. In <strong>the</strong><br />

nor<strong>the</strong>rn Sahel , which belongs to <strong>the</strong> Saharan-Sindian floristic domain according<br />

to Wickens (1997), <strong>the</strong> 150 mm isohyet corresponds to <strong>the</strong> sou<strong>the</strong>rn limit <strong>of</strong><br />

<strong>the</strong> Saharan species Cornulaca monacantha , Panicum turgidum <strong>and</strong> Stipagrostis<br />

pungens <strong>and</strong> to <strong>the</strong> nor<strong>the</strong>rn limit <strong>of</strong> such Sahelian shrubs as Boscia senegalensis<br />

<strong>and</strong> Commiphora africana <strong>and</strong> <strong>the</strong> grass Cenchrus biflorus .<br />

The Sahel ’s sou<strong>the</strong>rn limit adjoins <strong>the</strong> deciduous woodl<strong>and</strong>s <strong>of</strong> <strong>the</strong> Sudanian<br />

domain at between 450 <strong>and</strong> 500 mm/yr precipitation . Acacia spp. dominate <strong>the</strong><br />

thin scrub along with Balanites aegyptiaca ; laterite outcrops <strong>and</strong> cuirasses are<br />

colonized by Combretum nigricans , Guiera senegalensis , Lannea acida <strong>and</strong><br />

Sclerocarya birrea . The grass component <strong>of</strong> <strong>the</strong> nor<strong>the</strong>rn dunes is dominated<br />

by Cenchrus biflorus , Aristida mutabilis <strong>and</strong> Schoenfeldia gracilis . To <strong>the</strong> south,<br />

Schoenfeldia gracilis is important; on flood plains <strong>of</strong> rivers, grassl<strong>and</strong>s with perennials<br />

like Echinochloa stagnina , Oryza barthii <strong>and</strong> Vossia cuspidata provide<br />

excellent grazing when <strong>the</strong> floods have receded. Crops are grown, opportunistically,<br />

with millet (Pennisetum spp. ) <strong>the</strong> most important – it is usually sown<br />

when rain falls, with resowing, perhaps several times, until a reasonable st<strong>and</strong><br />

is attained.<br />

MARZIO MARZOT


O<strong>the</strong>r grassl<strong>and</strong>s 421<br />

The Sahelian grazing l<strong>and</strong>s have suffered much damage in <strong>the</strong> past fifty<br />

years, through an increasing human population, excessive advance <strong>of</strong> cropping<br />

into very marginal areas <strong>and</strong> serious deforestation, mainly for firewood, all<br />

exacerbated by recurrent droughts . The great drought <strong>of</strong> 1968 was particularly<br />

serious, as were o<strong>the</strong>rs in <strong>the</strong> early 1980s.<br />

The Sudanian zone , with from 500 mm to 1 100 mm/yr rainfall , is mainly<br />

on ferruginous tropical soils, with colluvions in depressions. Agricultural activity<br />

is more intense <strong>and</strong> <strong>the</strong> chance <strong>of</strong> crops succeeding is much more reliable.<br />

Millet is still important on light soils in <strong>the</strong> drier parts, along with cowpea <strong>and</strong><br />

groundnut, with sorghum on heavier soils. The range <strong>of</strong> crops widens as rainfall<br />

increases: maize is grown <strong>and</strong> cotton is a cash crop. Stock-rearing is sedentary,<br />

with some migration away from cropl<strong>and</strong> in <strong>the</strong> growing season. Areas with<br />

between 800 <strong>and</strong> 1 400 mm/yr precipitation is “parkl<strong>and</strong>”, where much <strong>of</strong> <strong>the</strong><br />

original forest has been cleared for cropping but trees that yield useful products<br />

have been protected; it is characterized by Vitellaria paradoxa (shea butter),<br />

Parkia biglobosa, Lannea acida <strong>and</strong> Sclerocaraya birrea. The herbaceous layer<br />

was dominated by Andropogon gayanus , which is becoming scarce because <strong>of</strong><br />

clearing <strong>and</strong> in cultivated areas has been replaced by vast areas <strong>of</strong> poor, unpalatable<br />

grasses. Forage quality is generally poorer than in <strong>the</strong> Sahel .<br />

In <strong>the</strong> subhumid Sudano-Guinean zone , <strong>the</strong> rains last five to seven months,<br />

<strong>and</strong> agriculture is oriented to tubers (yams, cassava) <strong>and</strong> fruits. This is <strong>the</strong><br />

wooded savannah (savane arborée - analogous to <strong>the</strong> miombo <strong>of</strong> centralsou<strong>the</strong>rn<br />

Africa) <strong>and</strong> open forest (forêt claire). The tree layer is dominated by<br />

Daniella olivieri <strong>and</strong> Isoberlina doka, <strong>and</strong> associated grasses are Hyperaemia<br />

spp. , Schizachryium rupestre , S. semi-herbe <strong>and</strong> Diheteropogon hagerupii .<br />

The sou<strong>the</strong>rn, humid parts <strong>of</strong> West Africa are not grazing areas. Tsetse flies<br />

(Glossina spp. ), <strong>the</strong> vectors <strong>of</strong> trypanosomiasis, are a major hindrance to <strong>the</strong><br />

expansion <strong>of</strong> animal husb<strong>and</strong>ry; ticks are also a serious problem. Root crops<br />

are important for subsistence, <strong>and</strong> many tree crops are grown, including oilpalm<br />

<strong>and</strong> cacao.<br />

There are two main stock-rearing ethnic groups, <strong>the</strong> Tuareg <strong>and</strong> <strong>the</strong> Fulani<br />

(Peul). Tuareg live on <strong>the</strong> desert fringe , <strong>and</strong> are divided into many groups: some<br />

are still exclusively transhumant herders; o<strong>the</strong>rs are part <strong>of</strong> a pastoral economy,<br />

staying in villages or camps close to <strong>the</strong>ir fields . Exclusive herders occupy l<strong>and</strong><br />

that is unsuitable for crops , to <strong>the</strong> north <strong>of</strong> <strong>the</strong> agropastoralists.<br />

Fulani (Plate 11.3) are cattle breeders, but small ruminants (Plate 11.4) provide<br />

meat for a family while cattle are capital, investment <strong>and</strong> prestige. There<br />

are both stock-rearing <strong>and</strong> agropastoralist groups; agropastoralist Fulani occupy<br />

<strong>the</strong> sou<strong>the</strong>rn Sahelian space. Transhumant groups sow millet near <strong>the</strong> fringe<br />

<strong>of</strong> cultivation during <strong>the</strong>ir migration. As tsetse fly challenge is reduced through<br />

tree <strong>and</strong> bush clearing , Fulani are increasingly settling, notably in Nigeria.<br />

Transhumance systems traverse <strong>the</strong> l<strong>and</strong> <strong>of</strong> farming communities <strong>and</strong> <strong>the</strong>ir<br />

herds may graze <strong>the</strong> stovers <strong>and</strong> fallows <strong>of</strong> farming groups. Many agricultural


422<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 11.3<br />

Wodaabe man with his herd. The Wodaabe are nomads <strong>and</strong> are part <strong>of</strong> <strong>the</strong><br />

Fulani ethnic group .<br />

Plate 11.4<br />

Small ruminants on <strong>the</strong> move.<br />

groups keep few or no cattle <strong>and</strong> <strong>the</strong> transhumant herds help by manuring<br />

some fields . This is changing <strong>and</strong> farmers increasingly conserve <strong>the</strong>ir stovers<br />

<strong>and</strong> may even sell <strong>the</strong>m to passing herds.<br />

Camels (Plate 11.5) are kept throughout <strong>the</strong> Sahelian zone but do not enter<br />

<strong>the</strong> trypanosomiasis areas. Sheep are local breeds <strong>and</strong> may be milked; Fulani<br />

MARZIO MARZOT<br />

MARZIO MARZOT


MARZIO MARZOT<br />

MARZIO MARZOT<br />

O<strong>the</strong>r grassl<strong>and</strong>s 423<br />

Plate 11.5<br />

Dromedary camels are used for transporting goods across <strong>the</strong> desert , <strong>and</strong> are also<br />

good milk producers.<br />

Plate 11.6<br />

Kouri cattle are a unique breed well adapted to <strong>the</strong> semi -aquatic environment <strong>of</strong><br />

Lake Chad.<br />

sheep are important north <strong>of</strong> <strong>the</strong> zone <strong>of</strong> trypanosomiasis; in forest zones <strong>the</strong><br />

trypanotolerant djallonke breed is reared in small groups. Sahelian goats , a<br />

long-legged type , are kept in <strong>the</strong> main herding areas; <strong>the</strong> Red Sokoto Goat<br />

(chèvre rouge de Maradi ), a breed <strong>of</strong> clearings in <strong>the</strong> Sudanian <strong>and</strong> Sahelo-


424<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

sudanian zones, is renowned for <strong>the</strong> quality <strong>of</strong> its lea<strong>the</strong>r. In areas <strong>of</strong> high tsetse<br />

fly challenge, trypanotolerant dwarf goats are reared.<br />

Sahelian cattle are mainly ei<strong>the</strong>r long-horned or short-horned zebu ; <strong>the</strong><br />

Kouri , a taurin, occurs around Lake Chad (Plate 11.6); <strong>the</strong>se breeds are not<br />

trypanotolerant <strong>and</strong> how far <strong>the</strong>y can penetrate towards forested areas is governed<br />

by tsetse fly challenge. Cattle rearing <strong>and</strong> animal husb<strong>and</strong>ry are much<br />

less important in <strong>the</strong> agricultural, well -watered zones ; however, local trypanotolerant<br />

breeds <strong>of</strong> cattle, sheep <strong>and</strong> goats are raised in clearings <strong>and</strong> on fallows<br />

in <strong>the</strong> shifting cultivation system. N’Dama cattle from Guinea, Muturu from<br />

Nigeria <strong>and</strong> Baoulé from Côte D’Ivoire, which are among <strong>the</strong> better-known<br />

trypanotolerant breeds, are taurin types (Bos taurus brachyceros ), not zebus.<br />

N’Dama have been introduced to o<strong>the</strong>r tsetse-infested parts <strong>of</strong> Africa, notably<br />

<strong>the</strong> Republic <strong>of</strong> <strong>the</strong> Congo (Chabeuf, 1983), to establish beef production<br />

in areas where it was not previously possible. Crosses between zebus <strong>and</strong><br />

taurins are used in intermediate zones according to <strong>the</strong> level <strong>of</strong> tsetse challenge;<br />

some have breed status, such as <strong>the</strong> Sanga <strong>and</strong> Néré.<br />

Madagascar<br />

Madagascar has one <strong>of</strong> <strong>the</strong> larger cattle herds in Africa; most are raised on<br />

natural grassl<strong>and</strong> ; FAOSTAT gives figures <strong>of</strong> about 10 000 000 over <strong>the</strong><br />

past twenty years, but Ministry estimates in 2000 were 7 260 000, <strong>of</strong> which<br />

1 000 000 were draught oxen, 500 000 dairy cattle <strong>and</strong> <strong>the</strong> remainder zebu<br />

(Rasambainarivo <strong>and</strong> Ranaivoarivelo, 2003); stock counts are complicated by<br />

many stockowners letting <strong>the</strong>ir cattle roam in a semi -feral state because <strong>of</strong><br />

security problems. Small stock are limited to <strong>the</strong> drier south: about a million<br />

goats <strong>and</strong> half a million sheep ; only local breeds are kept in extensive systems .<br />

The highl<strong>and</strong>s <strong>and</strong> <strong>the</strong> wet east coast are agricultural; rice is <strong>the</strong> staple crop.<br />

Cattle are kept for draught in farming areas but few are milked. Some exotic<br />

or grade dairy cattle are kept near towns in <strong>the</strong> highl<strong>and</strong>s, but settled Malagasy<br />

are not traditional milk drinkers.<br />

Madagascar lies between 11°57� <strong>and</strong> 25°29�S <strong>and</strong> 43°14� <strong>and</strong> 50°27�E.<br />

Highl<strong>and</strong>s (above 888 m) occupy <strong>the</strong> whole north-south axis. The eastern<br />

slopes fall abruptly to <strong>the</strong> Indian Ocean; <strong>the</strong> western versant has gentler slopes<br />

occupied by great plains, which extend to <strong>the</strong> Mozambique Channel. The<br />

climate is unimodal tropical , typified by a rainy season (November–March)<br />

<strong>and</strong> a dry season (April–October). The length <strong>of</strong> seasons varies according to<br />

<strong>the</strong> region. Altitude also has its effect, especially ins<strong>of</strong>ar as temperature is concerned.<br />

The dry season is cold in <strong>the</strong> highl<strong>and</strong>s, where frost can occur (regions<br />

<strong>of</strong> Ambatolampy <strong>and</strong> Antsirabe).<br />

Human settlement in Madagascar is relatively recent, about 2000 years, <strong>and</strong><br />

livestock came with <strong>the</strong>m. Much <strong>of</strong> Madagascar had been covered by forest ,<br />

but forest cover is decreasing rapidly <strong>and</strong> is now only about 22 percent <strong>of</strong> <strong>the</strong><br />

l<strong>and</strong> area. The area <strong>of</strong> savannah is 387 404 km 2 , 68 percent <strong>of</strong> <strong>the</strong> isl<strong>and</strong>. Most


J.M. SUTTIE<br />

O<strong>the</strong>r grassl<strong>and</strong>s 425<br />

savannahs (62 percent) are in <strong>the</strong> west <strong>and</strong> <strong>the</strong> south, <strong>and</strong> 76 percent are below<br />

800 m. The grasses <strong>of</strong> Madagascar were <strong>the</strong> subject <strong>of</strong> an in-depth study by<br />

Bosser (1969). The grassl<strong>and</strong>s are floristically poor <strong>and</strong> <strong>the</strong>re are no wild ungulates,<br />

but nor is <strong>the</strong>re tseste fly, <strong>and</strong> many <strong>of</strong> <strong>the</strong> serious livestock diseases <strong>of</strong><br />

mainl<strong>and</strong> Africa are also absent.<br />

The main extensive grazing areas are in <strong>the</strong> northwest, mid-west <strong>and</strong> south.<br />

Bush fires occur all over <strong>the</strong> pastoral areas every year. L<strong>and</strong> tenure in <strong>the</strong> pastoral<br />

l<strong>and</strong> is essentially traditional; its management depends, grosso modo, on<br />

whomsoever uses it. Insecurity <strong>of</strong> tenure favours <strong>the</strong> continued extensive use<br />

<strong>of</strong> <strong>the</strong> grassl<strong>and</strong>s. The grazing l<strong>and</strong>s are grassl<strong>and</strong>s with few trees or shrubs,<br />

except in <strong>the</strong> extreme south. Poor soils <strong>and</strong> frequent fire maintain a grassy<br />

vegetation under rainfalls that should support savannah or forest .<br />

In nor<strong>the</strong>rn savannahs, Heteropogon contortus is dominant on <strong>the</strong> plateaux,<br />

but replaced by Aristida spp. on severely eroded areas (Plate 11.7). At<br />

<strong>the</strong> foot <strong>of</strong> slopes <strong>and</strong> on colluvions, <strong>the</strong> commonest grasses are Hyparrhenia<br />

rufa <strong>and</strong> Hyper<strong>the</strong>lia dissoluta . Bottom l<strong>and</strong>s are covered by Echinochloa<br />

spp. <strong>and</strong> a retinue <strong>of</strong> secondary grasses. The relief is dominated by vast plains<br />

at altitudes below 300 m. Annual rainfall is 1 000 mm <strong>and</strong> <strong>the</strong> dry season lasts<br />

from mid-March to <strong>the</strong> end <strong>of</strong> November.<br />

In <strong>the</strong> mid-west, plateaus <strong>and</strong> <strong>the</strong> gentle slopes are covered by Heteropogon<br />

contortus <strong>and</strong> Hyparrhenia rufa , but in many places serious erosion has<br />

allowed Aristida spp. <strong>and</strong> Loudetia spp. to establish. The soil cover <strong>of</strong><br />

Plate 11.7<br />

Madagascar plateau area with a dry season cover <strong>of</strong> Themeda tri<strong>and</strong>ra on<br />

disturbed soil in <strong>the</strong> foreground <strong>and</strong> Aristida rufescens <strong>and</strong> Hyparrhenia spp. on<br />

<strong>the</strong> main area.


426<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

perennials does not exceed 20–40 percent. Steep slopes are covered by<br />

Aristida rufescens <strong>and</strong> Loudetia simplex . The percentage <strong>of</strong> bare soil is high<br />

(90 percent), indicating serious erosion. Colluvions are covered by Panicum<br />

maximum <strong>and</strong> Hyparrhenia variabilis .<br />

The sou<strong>the</strong>rn savannahs are <strong>the</strong> largest <strong>of</strong> <strong>the</strong> regions. The topography<br />

is vast plains. The region has low rainfall <strong>and</strong> few rainy days. Toliary is <strong>the</strong><br />

driest area, with 275 mm over 27 rainy days. There is great inter-year variability.<br />

The rainiest months are December to February. Water is a problem<br />

for stock between April <strong>and</strong> November. The south is renowned for its big<br />

herds <strong>of</strong> zebus <strong>and</strong> small stock. The population live in “a cattle civilization”.<br />

Heteropogon contortus is <strong>the</strong> commonest grass on soils not subject to<br />

waterlogging. According to <strong>the</strong> topography <strong>and</strong> <strong>the</strong> degree <strong>of</strong> erosion, some<br />

species can dominate; this is <strong>the</strong> case for Loudetia simplex <strong>and</strong> Aristida spp. ,<br />

which occupy degraded slopes. Hyparrhenia rufa , Hyper<strong>the</strong>lia dissoluta <strong>and</strong><br />

Cynodon dactylon occupy areas that may receive run<strong>of</strong>f. Cacti (Opuntia<br />

spp. ) are characteristic fodder plants. The extreme south, on limestone, has<br />

characteristic thorn-scrub, with many endemic plants, dominated by tall<br />

Didieraceae.<br />

Many forages have been grown successfully, but only a few dairy farmers<br />

grow <strong>the</strong>m. Pasture improvement by over-sowing with Stylosan<strong>the</strong>s guyanensis<br />

<strong>and</strong> S. humilis was tested on a large scale in <strong>the</strong> mid-west in <strong>the</strong> early<br />

1970s, but, after initial promise, <strong>the</strong> legume was wiped out by anthracnose.<br />

SOUTH AMERICA<br />

The Llanos<br />

The Llanos <strong>of</strong> Venezuela (Vera, 2003) are part <strong>of</strong> <strong>the</strong> 50 million hectares <strong>of</strong><br />

savannahs in <strong>the</strong> Orinoco River basin. The vegetation communities can be<br />

divided into four main subregions.<br />

The Piedmont Savannahs consist <strong>of</strong> large alluvial areas <strong>and</strong> terraces covered<br />

originally by semi -deciduous forests <strong>and</strong> savannahs, though <strong>the</strong> latter<br />

predominates. They are sou<strong>the</strong>ast <strong>of</strong> <strong>the</strong> Andes <strong>and</strong> descend gradually to <strong>the</strong><br />

plains. They are characterized by a rich tree flora, shrubs <strong>and</strong> grasses, most <strong>of</strong><br />

which are common to <strong>the</strong> o<strong>the</strong>r types <strong>of</strong> savannah. These include Andropogon<br />

selloanus , A. semiberbis , Axonopus canescens , A. purpusii , Bulbostylis spp.,<br />

Elyonurus adustus, Leptocoryphium lanatum , Panicum olyroides , Paspalum plicatulum<br />

, P. gardnerianum , Trachypogon plumosus , T. vestitus <strong>and</strong> T. montufari.<br />

On average, <strong>the</strong> maximum aboveground st<strong>and</strong> <strong>of</strong> savannah reaches 7 t/ha/yr,<br />

with about twice that amount below ground.<br />

The savannahs <strong>of</strong> <strong>the</strong> High Plains or Mesas are north <strong>of</strong> <strong>the</strong> Orinoco, at<br />

150–270 m, descending into <strong>the</strong> Llanos de Monagas. They are covered by<br />

a deciduous tree savannah where <strong>the</strong> herbaceous layer predominates <strong>and</strong> is<br />

dominated by Trachypogon plumosus or T. vestitus , with Andropogon selloanus<br />

, Axonopus canescens <strong>and</strong> Leptocoryphium lanatum as subdominant grasses.


O<strong>the</strong>r grassl<strong>and</strong>s 427<br />

The sparse tree layer is composed <strong>of</strong> Curatella americana, Byrsonima crassifolia<br />

<strong>and</strong> Bowdichia virgiloides. Aboveground production <strong>of</strong> <strong>the</strong> grass layer<br />

peaks at 3 200-4 200 kg/ha when burnt, whereas yields are 30 percent lower<br />

if protected. Fire is <strong>the</strong> only economically feasible management tool. Burning,<br />

even in mid-dry season , induces a regrowth if water reserves allow.<br />

The Alluvial Overflow Plains, which occupy a depression <strong>of</strong> 3 800 000 ha<br />

in <strong>the</strong> central Llanos between <strong>the</strong> piedmont <strong>and</strong> <strong>the</strong> high plains, are very flat,<br />

with only one to two metres between <strong>the</strong> highest <strong>and</strong> lowest points . Higher<br />

l<strong>and</strong> constitutes natural levees, where <strong>the</strong> soil is a s<strong>and</strong>y alluvium, whereas<br />

clay particles settle in <strong>the</strong> lower parts (basins), which have slow drainage; rain<br />

drains very slowly <strong>and</strong> <strong>the</strong> lower parts remain flooded during most <strong>of</strong> <strong>the</strong><br />

rainy season, but have a high carrying capacity in <strong>the</strong> dry season . The area is<br />

used for extensive cattle <strong>and</strong> buffalo grazing (96 percent for cattle; 4 percent<br />

under forests), although frequently wild capybara are raised with cattle. The<br />

botanical composition <strong>of</strong> levees <strong>and</strong> basins differs, but this type <strong>of</strong> savannah<br />

has more palatable species than <strong>the</strong> o<strong>the</strong>rs, <strong>and</strong> has been modified by human<br />

intervention, especially in an area <strong>of</strong> 250 000 ha enclosed by low dykes <strong>and</strong><br />

floodgates to regulate water levels in sections <strong>of</strong> 3 000 to 6 000 ha each. L<strong>and</strong><br />

permanently above water is colonized by Axonopus purpusii , A. affinis <strong>and</strong><br />

Leptocoryphium lanatum ; sections moderately flooded contain Panicum<br />

laxum <strong>and</strong> Leersia hex<strong>and</strong>ra as dominants; <strong>and</strong> <strong>the</strong> strongly flooded areas are<br />

dominated by Hymenachne amplexicaulus , Reimarochloa acuta <strong>and</strong> Leersia<br />

hex<strong>and</strong>ra. Cyperaceae are also abundant. Aboveground yields vary between<br />

<strong>the</strong> 5 t DM/ha <strong>of</strong> <strong>the</strong> levees to 2–3 t DM/ha in <strong>the</strong> basins. According to some<br />

estimates, regulation <strong>of</strong> water level in <strong>the</strong> Modulos can increase carrying<br />

capacity up to fivefold.<br />

The Aeolian Plains, which extend north-east from <strong>the</strong> Colombian Andean<br />

Piedmont into sou<strong>the</strong>rn Venezuela , are characterized by dunes covered by<br />

sparse vegetation , almost treeless , <strong>and</strong> dominated by Trachypogon ligularis <strong>and</strong><br />

Paspalum carinatum ; inter-dunal depressions are occupied by a Mesosetum<br />

savannah. Both formations are low yielding <strong>and</strong> <strong>of</strong> low palatability.<br />

The Gran Chaco<br />

This section is based on Riveros (2002) <strong>and</strong> Garbulsky <strong>and</strong> Deregibus (2004).<br />

The Gran Chaco , between 17° <strong>and</strong> 33°S <strong>and</strong> 65° <strong>and</strong> 60°W, is a vast plain in<br />

<strong>the</strong> River Plate Basin that extends through nor<strong>the</strong>rn Argentina , sou<strong>the</strong>astern<br />

Bolivia , northwestern Paraguay <strong>and</strong> a small area <strong>of</strong> southwestern Brazil . It<br />

stretches for about 1 500 km from north to south, <strong>and</strong> 700 km from east to<br />

west, without any physical barriers intervening. Its area is about 850 000 km 2 .<br />

The Chaco, which extends into both tropical <strong>and</strong> temperate zones , is one<br />

<strong>of</strong> <strong>the</strong> major wooded grassl<strong>and</strong>s in South America, but suffers from intense<br />

degradation through unrestricted forest <strong>and</strong> bush clearing , overgrazing <strong>and</strong><br />

continuous monoculture.


428<br />

Plate 11.8<br />

Park grassl<strong>and</strong>s in NE Chaco, a summer view.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

It slopes gradually eastwards, at 100–500 m above sea level, except for <strong>the</strong><br />

Sierras in Cordoba, Argentina , which reach 2 800 m. The climate, <strong>of</strong> <strong>the</strong> wetdry<br />

season al type , varies without sudden changes since <strong>the</strong>re are no natural<br />

barriers. Temperatures rise from south to north <strong>and</strong> rainfall from west to east.<br />

The warmest months coincide with those <strong>of</strong> maximum rainfall, which favoured<br />

<strong>the</strong> evolution <strong>of</strong> herbaceous forages <strong>of</strong> <strong>the</strong> C4 type.<br />

Most early settlement was along <strong>the</strong> coast <strong>and</strong> major waterways. A railway<br />

<strong>and</strong> water supplies opened <strong>the</strong> Chaco to settlement. Commercial beef production<br />

developed in <strong>the</strong> nineteenth century. Large tracts were colonized <strong>and</strong> <strong>the</strong><br />

exploitation <strong>of</strong> <strong>the</strong> Chaco began in earnest. Between 1910 <strong>and</strong> 1920, <strong>the</strong> sou<strong>the</strong>ast<br />

<strong>of</strong> <strong>the</strong> Paraguayan Chaco was an area for extensive cattle production <strong>and</strong><br />

sugar cane growing. Grazing was totally unmanaged, <strong>the</strong>re was uncontrolled<br />

burning , <strong>and</strong> overfelling <strong>of</strong> forest led to its replacement by undesirable thorny<br />

vegetation .<br />

Introduction <strong>of</strong> livestock alone is not enough to explain <strong>the</strong> dramatic <strong>and</strong><br />

rapid changes that took place in <strong>the</strong> vegetation . The most potent factor was <strong>the</strong><br />

dispersion <strong>of</strong> watering points so that a much greater proportion <strong>of</strong> <strong>the</strong> herbage<br />

could be consumed, leaving little or none to be burnt. The demise <strong>of</strong> <strong>the</strong><br />

fire climax led to an increased scarcity <strong>of</strong> forage through increased grazing <strong>and</strong><br />

increased growth <strong>of</strong> unpalatable, woody species. This was <strong>the</strong> only grassl<strong>and</strong><br />

intervention introduced by <strong>the</strong> ranchers. Grazing was continuous , with mixed<br />

herds <strong>of</strong> cattle , horses, goats , asses <strong>and</strong> sheep roaming uncontrolled on <strong>the</strong><br />

same l<strong>and</strong>, with no limits but <strong>the</strong> distance to water in <strong>the</strong> dry season ; small<br />

V. ALEJANDRO DEREGIBUS AND MARTIN F. GARBULSKY


V. ALEJANDRO DEREGIBUS AND MARTIN F. GARBULSKY<br />

O<strong>the</strong>r grassl<strong>and</strong>s 429<br />

Plate 11.9<br />

A savannah type in SE Chaco, winter view.<br />

stock were <strong>of</strong>ten penned at night. The boundaries <strong>of</strong> grazing territories were<br />

ill-defined <strong>and</strong> herds’ grazing l<strong>and</strong> <strong>of</strong>ten overlapped; this led to severe overgrazing<br />

<strong>and</strong> rapid degradation <strong>of</strong> <strong>the</strong> pastoral cover. In less than fifty years, <strong>the</strong><br />

once-rich l<strong>and</strong>scape had been almost sterilized <strong>and</strong> altered as a result <strong>of</strong> this “no<br />

management ” system.<br />

In Argentina , <strong>the</strong> main vegetation types are:<br />

Humid to subhumid or Oriental Chaco is a parkl<strong>and</strong> formation (Plate 11.8),<br />

where patches <strong>of</strong> Quebracho Colorado Chaqueño (Schinopsis spp. ) forest alternate<br />

with open grassl<strong>and</strong> . There are also areas <strong>of</strong> Copernica alba palm, usually<br />

under swamp conditions with accumulation <strong>of</strong> salts.<br />

Arid <strong>and</strong> semi -arid Chaco. This is present in Argentina (Plate 11.9), in <strong>the</strong><br />

east <strong>of</strong> Bolivia <strong>and</strong> western Paraguay , with a small area in southwest Brazil . It<br />

is a huge area <strong>of</strong> flat l<strong>and</strong>, increasingly arid from east to west. Open grassl<strong>and</strong>s<br />

derived from forest through bush clearing <strong>and</strong> fire occupy a lesser area than<br />

in <strong>the</strong> humid <strong>and</strong> subhumid zones . Forests are dominated by xerophytes <strong>and</strong><br />

are more open than in <strong>the</strong> eastern Chaco. Cacti are common among trees <strong>and</strong><br />

shrubs. Pastoral resources include a vast number <strong>of</strong> trees <strong>and</strong> shrubs, as well as<br />

forage plants that are only found in man-made clearings.<br />

The Montane zone is mostly in Argentina , but extends into Bolivia <strong>and</strong><br />

Paraguay . The l<strong>and</strong>scape is broken by hills, which have a higher rainfall than<br />

<strong>the</strong> lowl<strong>and</strong>s; hillsides collect moist air coming from <strong>the</strong> Atlantic. The forest<br />

vegetation contains many species found in <strong>the</strong> lower Chaco, <strong>and</strong> some trees <strong>of</strong><br />

higher rainfall areas; <strong>the</strong> grass cover is very limited.


430<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

In Paraguay , <strong>the</strong> Chaco, referred to as <strong>the</strong> “western region”, is almost flat,<br />

with 32 000 km 2 suitable for crops , but only a very small area is cultivated. The<br />

grazed area covers 124 000 km 2 , mostly on natural grassl<strong>and</strong> . Two main vegetation<br />

groups are recognized in Paraguay: <strong>the</strong> xeromorphic group dominates<br />

<strong>the</strong> l<strong>and</strong>scape ; matorral is <strong>the</strong> main formation in all <strong>the</strong> centre, north <strong>and</strong> west.<br />

Mesomorphic vegetation that dominates towards <strong>the</strong> south <strong>and</strong> centre-east<br />

develops on heavier, better structured soils <strong>and</strong> is covered by a mosaic <strong>of</strong> alternating<br />

forest <strong>of</strong> Schinopsis balinese, Caesalpinia paraguariensis <strong>and</strong> Phyllostylon<br />

rhamnoides; palm-savannahs <strong>of</strong> Copernica alba ; <strong>and</strong> marshes.<br />

Extensive livestock rearing is, <strong>and</strong> will probably remain, a major l<strong>and</strong> use<br />

in <strong>the</strong> Chaco. Bush encroachment brought about by overstocking <strong>and</strong> lack <strong>of</strong><br />

grazing management is very serious, leading to erosion, loss <strong>of</strong> wildlife habitat ,<br />

<strong>and</strong> greatly reduced livestock production. The economics <strong>of</strong> herbicides <strong>and</strong><br />

mechanical clearing are not clear. In most sub-tropical areas <strong>of</strong> extensive grazing,<br />

<strong>the</strong> strategic use <strong>of</strong> pasture resting <strong>and</strong> controlled fire is <strong>the</strong> only economic<br />

way <strong>of</strong> keeping bush in check.<br />

Poor management in <strong>the</strong> Chaco leads to invasion by unpalatable weeds,<br />

caused by loss <strong>of</strong> soil fertility, which must be kept at high levels to assure<br />

survival <strong>of</strong> introduced forages. Proper adjustment <strong>of</strong> carrying capacity is also<br />

essential. Natural grassl<strong>and</strong> is better than degraded, weed-infested, “improved<br />

pasture ”. Sown pastures may have an important role in <strong>the</strong> Paraguayan<br />

Chaco compared with <strong>the</strong> rest <strong>of</strong> <strong>the</strong> area.<br />

Pampas<br />

The Pampas (Garbulsky <strong>and</strong> Deregibus, 2004), which occupies about 50<br />

million hectares between <strong>the</strong> 2°C <strong>and</strong> <strong>the</strong> 13°C iso<strong>the</strong>rms, has a temperate<br />

climate with mild, snow-free winters. Precipitation decreases from 1 200 mm<br />

in <strong>the</strong> nor<strong>the</strong>ast to 500 mm/yr in <strong>the</strong> ecotonal change to <strong>the</strong> Monte region.<br />

Rain is evenly distributed through <strong>the</strong> year in <strong>the</strong> east, but is concentrated in<br />

<strong>the</strong> warm season in <strong>the</strong> west.<br />

This Region is characterized by its lack <strong>of</strong> native trees, flat terrain, fertile soils,<br />

extended cropl<strong>and</strong>s <strong>and</strong> native or sown pastures. As soils are fertile <strong>and</strong> summers<br />

shorter <strong>and</strong> milder than in <strong>the</strong> north, many C3 grasses <strong>and</strong> temperate legumes<br />

grow during <strong>the</strong> cool season. Thus a seasonal alternation occurs between<br />

C4 <strong>and</strong> C3 plants. Species alternation maintains green grass year-long <strong>and</strong> is ideal<br />

for resource utilization in a seasonally variable climatic environment; mild water<br />

deficits in summer are better overcome by C4 grasses. Temperate grasses <strong>and</strong><br />

legumes <strong>of</strong> good quality (above 20 percent protein <strong>and</strong> 70–80 percent digestibility)<br />

allow total utilization during winter <strong>of</strong> <strong>the</strong> remnant biomass <strong>of</strong> summer<br />

grasses, so <strong>the</strong>re is seldom accumulation <strong>of</strong> forage in winter.<br />

Native humid-grassl<strong>and</strong>s cover <strong>the</strong> Flooding Pampa, some parts <strong>of</strong> Entre<br />

Ríos Province <strong>and</strong> most river <strong>and</strong> stream banks. Their warm season components<br />

are grasses <strong>of</strong> <strong>the</strong> Panicoideae, Chlorideae, Andropogoneae <strong>and</strong>


V. ALEJANDRO DEREGIBUS AND MARTIN F. GARBULSKY<br />

O<strong>the</strong>r grassl<strong>and</strong>s 431<br />

Oryzeae. Alternating seasonally with <strong>the</strong>m, thrive grasses <strong>of</strong> <strong>the</strong> Agrosteae,<br />

Aveneae, Festuceae, Phalarideae <strong>and</strong> Stipeae. As soil fertility increases to<br />

<strong>the</strong> west <strong>of</strong> <strong>the</strong> Paraná River <strong>and</strong> south <strong>of</strong> <strong>the</strong> Río de la Plata, a myriad <strong>of</strong><br />

herbaceous legumes grow (Cassia spp. , Crotalaria spp. , Desmanthus spp. ,<br />

Phaseolus spp. , Vicia spp. , etc.).<br />

Flooding Pampas grassl<strong>and</strong>s<br />

The very slight slope <strong>of</strong> <strong>the</strong> plains results in a low morphogenic potential <strong>and</strong><br />

endoreic or areic drainage, in spite <strong>of</strong> a subhumid climate. These topographical<br />

characteristics cause extensive <strong>and</strong> lengthy flooding during periods <strong>of</strong> abundant<br />

precipitation (once every decade), causing severe damage <strong>and</strong> heavy losses<br />

where human influence has been prominent. Lesser floods, which occur at<br />

<strong>the</strong> end <strong>of</strong> winter <strong>and</strong> in early spring , are <strong>the</strong> most remarkable features <strong>of</strong> this<br />

region.<br />

The typical physiognomy <strong>of</strong> <strong>the</strong> Flooding Pampa is extended, treeless<br />

grassl<strong>and</strong>s (except where trees are planted) <strong>and</strong> its community is dominated<br />

by Paspalum dilatatum (Plates 11.10a <strong>and</strong> b), Bothriochloa laguroides <strong>and</strong><br />

Briza subaristata . P. quadrifarium <strong>and</strong> Stipa trichotoma are bunch grasses that<br />

dominate <strong>the</strong> southwestern part <strong>of</strong> <strong>the</strong> area.<br />

Non-saline grassl<strong>and</strong>s produce about 5 t DM/ha/yr, with a clear summer<br />

peak – a pattern that contrasts with <strong>the</strong> small variation in st<strong>and</strong>ing crop<br />

greenness. Forage productivity in winter (July) is 5 kg DM/ha/day, being<br />

Plate 11.10a<br />

A grassl<strong>and</strong> dominated by Paspalum dilatatum . Summer view.


432<br />

Plate 11.10b<br />

A grassl<strong>and</strong> dominated by Paspalum dilatatum . Winter (flooded) view.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

30 kg DM/ha/day in December <strong>and</strong> January. Scarce winter production is caused<br />

by <strong>the</strong> depletion <strong>of</strong> cool-season grasses caused by continuous overgrazing <strong>of</strong><br />

domestic cattle after windmills <strong>and</strong> fences were introduced 100 years ago.<br />

The dominance <strong>of</strong> warm-season grasses <strong>and</strong> loss <strong>of</strong> nitrogen fertility fur<strong>the</strong>r<br />

prevent <strong>the</strong> establishment <strong>of</strong> cool-season grasses every autumn . Low winter<br />

productivity limits <strong>the</strong> carrying capacity <strong>and</strong> determines <strong>the</strong> production system<br />

<strong>of</strong> <strong>the</strong> area: cow-calf operations. Almost 3.5 million cattle roam <strong>the</strong> 6 million<br />

hectares <strong>of</strong> <strong>the</strong> Flooding Pampas , exporting 2 million calves annually to be<br />

raised on pastures in cropl<strong>and</strong> or feed yards. Annual secondary production<br />

may be estimated at 90 kg/ha.<br />

Winter productivity may be significantly increased by hard early autumn<br />

grazing or herbicide spraying <strong>of</strong> <strong>the</strong> warm-season grasses, followed by nitrogen<br />

fertilization . This promotes <strong>the</strong> establishment <strong>and</strong> growth <strong>of</strong> Lolium<br />

multiflorum , an excellent quality exotic grass that thrives well in intermediate<br />

communities . Phosphate fertilization may also increase cool-season grass production<br />

by promoting <strong>the</strong> density <strong>of</strong> herbaceous legumes Lotus tenuifolius <strong>and</strong><br />

Trifolium repens that enrich soil nitrogen through fixation.<br />

Cropl<strong>and</strong> Pampas cultivated pastures<br />

The most renowned Pampas is <strong>the</strong> sector extending in a circle around <strong>the</strong><br />

Flooding Pampas . Constituting <strong>the</strong> main cropping area <strong>of</strong> Argentina , with<br />

77 percent <strong>of</strong> <strong>the</strong> cattle stock <strong>and</strong> 70 percent <strong>of</strong> <strong>the</strong> human population, it<br />

contains <strong>the</strong> major cities <strong>and</strong> industrial development . The original tussock<br />

grassl<strong>and</strong>s are now rainfed cropl<strong>and</strong>s producing soybeans, maize, wheat<br />

V. ALEJANDRO DEREGIBUS AND MARTIN F. GARBULSKY


V. ALEJANDRO DEREGIBUS AND MARTIN F. GARBULSKY<br />

O<strong>the</strong>r grassl<strong>and</strong>s 433<br />

Plate 11.11<br />

Cows on grassl<strong>and</strong> in <strong>the</strong> Pampas.<br />

<strong>and</strong> sunflower as <strong>the</strong> main crops . After several years <strong>of</strong> crops, improved<br />

pastures are sown in a four- to five-year rotation to maintain soil fertility.<br />

When pastures are grown, <strong>the</strong> seasonal forage production alternates between<br />

alfalfa, which grows in <strong>the</strong> warm season, <strong>and</strong> grasses <strong>and</strong> clovers that grow<br />

in cooler wea<strong>the</strong>r. Oats are also a popular forage crop.<br />

Sown pastures (Plate 11.11) are grazed by steers, yearlings or dairy cattle .<br />

Forage legumes like Medicago sativa , Trifolium repens , T. pratense <strong>and</strong> Lotus<br />

corniculatus <strong>and</strong> grasses such as Festuca arundinacea , Phalaris arundinacea ,<br />

Bromus catharticus , Dactylis glomerata , Lolium perenne <strong>and</strong> L. multiflorum<br />

or Agropyron elongatum are grown. When pastures are adequately fertilized<br />

(principally with P), primary production may achieve 12 to 15 t DM/ha/yr or<br />

more. This primary production allows 500 kg/ha <strong>of</strong> beef annually or 200 kg/ha<br />

<strong>of</strong> milk fat.<br />

Nowadays, cash crop prices <strong>and</strong> <strong>the</strong> higher pr<strong>of</strong>its <strong>of</strong> agriculture have led<br />

to a decrease in cattle numbers in this area. To this can be added genetically<br />

modified soybeans <strong>and</strong> modern no-tillage practices, that reduce <strong>the</strong> need for<br />

pasture -cash crop rotations to maintain soil fertility.<br />

Monte shrubl<strong>and</strong><br />

The Monte phytogeographic province is a strip that surrounds <strong>the</strong> Calden <strong>and</strong><br />

Semi-arid Chaco regions up to <strong>the</strong> Atlantic coast <strong>of</strong> Chubut province, covering<br />

50 million hectares. Its physiognomy is dominated by a tall shrub stratum with<br />

Prosopis alpataco , P. flexuosa (Fabaceae), Larrea divaricata , L. cuneifolia <strong>and</strong><br />

L. nitida (Zygophyllaceae). Fodder shrubs include <strong>the</strong> genus Atriplex . Towards


434<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>the</strong> nor<strong>the</strong>rn tip <strong>of</strong> <strong>the</strong> Monte province, Prosopis spp. are dominant in <strong>the</strong> shrub<br />

layer, while <strong>the</strong> sou<strong>the</strong>rn extreme is dominated by Larrea spp. The grass layer,<br />

which is <strong>the</strong> most important forage source, is composed <strong>of</strong> a mixture <strong>of</strong> C4 <strong>and</strong><br />

C3 species. Towards <strong>the</strong> north, <strong>the</strong> C4 group (Panicum urvilleanum , Chloris<br />

castilloniana , Pappophorum caespitosum <strong>and</strong> P. phillippianum ) dominate <strong>and</strong><br />

to <strong>the</strong> south <strong>the</strong> C3 (Stipa tenuis , S. speciosa , Poa ligularis <strong>and</strong> P. lanuginosa )<br />

increase in importance. Prosopis spp. are widely browsed by small ruminants<br />

like goats , as <strong>the</strong>ir shoots <strong>and</strong> pods are rich in protein.<br />

ASIA<br />

Central Asia<br />

Pasture descriptions are included for Kyrgyzstan (Fitzherbert 2000) <strong>and</strong><br />

Uzbekistan (Makhmudovich, 2001). Uzbekistan’s grazing l<strong>and</strong>s are described<br />

in detail by Gintzburger et al. (2003) <strong>and</strong> <strong>the</strong> problems <strong>of</strong> transition <strong>of</strong> all<br />

Central Asia to decollectivized farming <strong>and</strong> animal husb<strong>and</strong>ry is discussed<br />

by Ryan, Vlek <strong>and</strong> Paroda (2004) <strong>and</strong> Gintzburger (2004). The Central<br />

Asian Region, which comprises Kazakhstan , Kyrgyzstan, Turkmenistan <strong>and</strong><br />

Uzbekistan, is a vast low-altitude plain, bordered to <strong>the</strong> south by mountains<br />

that rise to <strong>the</strong> Pamirs. The Chinese Autonomous Region <strong>of</strong> Xinjiang <strong>and</strong><br />

<strong>the</strong> nor<strong>the</strong>rn fringe <strong>of</strong> Afghanistan are, geographically, part <strong>of</strong> <strong>the</strong> region, but<br />

<strong>the</strong>ir recent history <strong>and</strong> grassl<strong>and</strong> management have been very different from<br />

those <strong>of</strong> countries <strong>of</strong> <strong>the</strong> former USSR. These arid to semi -arid plains had,<br />

until <strong>the</strong> twentieth century, been mainly exploited by mobile herding , with<br />

farming concentrated in oases <strong>and</strong> <strong>the</strong> valleys <strong>of</strong> <strong>the</strong> great rivers flowing to<br />

<strong>the</strong> Aral Sea.<br />

The plains are below 500 m, with large areas below 200 m, sloping to <strong>the</strong><br />

Aral sea, which is about 53 m above mean sea level. The Uzbekistan vegetation<br />

zones will serve to show <strong>the</strong> general b<strong>and</strong>ing <strong>of</strong> pastures from <strong>the</strong> grazing point<br />

<strong>of</strong> view. The territory <strong>of</strong> <strong>the</strong> republic is divided into:<br />

A desert belt (chul), which is <strong>the</strong> zone <strong>of</strong> irrigated farming <strong>and</strong> Karakul<br />

sheep : annual precipitation is 100–250 mm; average annual temperature is<br />

about 15°C. Vegetation types are desert, psammophytic shrub <strong>and</strong> ephemeralsemi<br />

-shrub vegetation .<br />

The foothill plains belt (adyr) is <strong>the</strong> zone <strong>of</strong> rainfed l<strong>and</strong>s, with very low<br />

precipitation . The main rainfed areas <strong>and</strong> big oases <strong>of</strong> irrigated farming are concentrated<br />

in <strong>the</strong> desert (chul) zone. The yearly average temperature is 13°C, but<br />

in <strong>the</strong> south it is 14–16°C; annual precipitation is 200–545 mm; <strong>the</strong> prevailing<br />

soil type is light <strong>and</strong> typical sierozems, with widely spread ephemeral vegetation<br />

. The mid-mountain belt (tau) is rainfed l<strong>and</strong> with normal precipitation <strong>of</strong><br />

<strong>the</strong> Tashkent, Samark<strong>and</strong> <strong>and</strong> Surkh<strong>and</strong>arya Regions. The average annual temperature<br />

is 8–11°C; annual precipitation is over 400 mm. Along with rainfed<br />

grain farming, <strong>the</strong> belt is extremely favourable for orchards <strong>and</strong> vineyards. The<br />

high-mountains belt (yaylau) is <strong>the</strong> zone <strong>of</strong> summer pastures.


O<strong>the</strong>r grassl<strong>and</strong>s 435<br />

Most <strong>of</strong> <strong>the</strong> lowl<strong>and</strong>s <strong>of</strong> Central Asia have a very cold variant <strong>of</strong> <strong>the</strong><br />

Mediterranean arid <strong>and</strong> semi -arid climate. Their latitude range (35°–46°)<br />

is similar to that <strong>of</strong> <strong>the</strong> steppes in <strong>the</strong> nor<strong>the</strong>rn part <strong>of</strong> western Asia, <strong>the</strong><br />

Maghreb <strong>and</strong> Spain to <strong>the</strong> west, <strong>and</strong> <strong>the</strong> Gobi <strong>and</strong> Mongolia to <strong>the</strong> east.<br />

Precipitation as rain <strong>and</strong> snow falls in <strong>the</strong> cold winter –spring period, with<br />

winter extreme minima <strong>of</strong>ten falling below -20°C.<br />

Small ruminants, primarily sheep , are <strong>the</strong> main livestock <strong>of</strong> <strong>the</strong> region; finewool<br />

breeds were greatly encouraged during <strong>the</strong> soviet period, but <strong>the</strong>se are less<br />

hardy than local breeds <strong>and</strong> <strong>the</strong> wool no longer comm<strong>and</strong>s interesting prices;<br />

local fat-tailed breeds are now at least as common as fine-wools; in Uzbekistan ,<br />

Karakul are raised for <strong>the</strong>ir pelts. Camels are used for transport – <strong>the</strong> Arabian<br />

type in <strong>the</strong> south <strong>and</strong> east, with <strong>the</strong> Bactrian taking over in Kazakhstan . Horses<br />

are also very important. Cattle are raised in agricultural zones <strong>and</strong> in <strong>the</strong> mountains,<br />

<strong>and</strong> yak are locally important in Kyrgyzstan .<br />

Before <strong>the</strong> Russian revolution, <strong>the</strong> pastures were exploited by herders who<br />

depended entirely on <strong>the</strong> grassl<strong>and</strong> resources ; herders <strong>and</strong> <strong>the</strong>ir livestock moved<br />

seasonally between lowl<strong>and</strong> winter pastures <strong>and</strong> summer grazing . In <strong>the</strong> 1930s<br />

<strong>the</strong> herders were settled <strong>and</strong> collectivized; this stopped transhumant movement<br />

between different ecological zones . The system <strong>of</strong> state farms , cooperatives <strong>and</strong><br />

state services would be similar to those for <strong>the</strong> USSR described in Chapter 10.<br />

Planned socialist systems were imposed, including breed improvement <strong>and</strong><br />

feeding. Later, <strong>the</strong> usefulness <strong>of</strong> seasonal movement was recognized <strong>and</strong> l<strong>and</strong> in<br />

different seasonal zones was allocated to cooperatives <strong>and</strong> state farms.<br />

Heavy grazing <strong>and</strong> firewood collection have seriously reduced vegetation<br />

cover <strong>and</strong> <strong>the</strong> natural grazing has become degraded, with a loss <strong>of</strong> productivity<br />

<strong>and</strong> increasing desertification; destruction <strong>of</strong> forests <strong>and</strong> shrubs has led to<br />

wind erosion. Rehabilitation techniques were developed <strong>and</strong> have been applied<br />

on a fairly large scale; <strong>the</strong>y are described by Gintzburger et al. (2003). After<br />

decollectivization, with fragmentation <strong>of</strong> herds <strong>and</strong> holdings <strong>and</strong> lack <strong>of</strong> clarity<br />

concerning herders’ responsibility for maintaining <strong>the</strong> pasture resource, rehabilitation<br />

activities have been greatly reduced.<br />

The impact <strong>of</strong> decollectivization on livestock production systems , grassl<strong>and</strong><br />

management <strong>and</strong> herder’s livelihoods has been dramatic <strong>and</strong> negative (Aw-<br />

Hassan et al., 2004). Large agr<strong>of</strong>ood complexes were dismantled <strong>and</strong> cooperative<br />

farms were privatized. Marketing systems collapsed <strong>and</strong> many traditional<br />

markets were lost. Institutional changes have not kept pace with changes in<br />

production systems. One overall result has been a sharp decline in stock numbers<br />

in some <strong>of</strong> <strong>the</strong> countries, especially sheep ; falls have been most marked in<br />

Kazakhstan , Kyrgyzstan <strong>and</strong> Tajikistan. Fitzherbert (2000) reports that sheep<br />

numbers in Kyrgyzstan fell from 9 500 000 in 1990 to 3 250 000 in 1999.<br />

The reforms led to a massive shift from collective to household herds; <strong>of</strong>ten<br />

household stock numbers are too few to warrant independent herding <strong>and</strong><br />

communal or family herding has not yet developed; this <strong>of</strong>ten leads to stock


436<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

remaining, unsupervised, close to homesteads: nearby pastures are overgrazed<br />

while distant ones are hardly used (Iñguez et al. 2004). Previously, considerable<br />

quantities <strong>of</strong> fodder was grown <strong>and</strong> conserved for winter ; this has declined very<br />

considerably as <strong>the</strong> republics concentrate on self-sufficiency in cereals, which<br />

<strong>the</strong>y can no longer procure readily from elsewhere. Lack <strong>of</strong> conserved feed <strong>and</strong><br />

reduced herd mobility exacerbate <strong>the</strong> serious problems <strong>of</strong> winter feeding.<br />

CHINA<br />

This section is based on <strong>the</strong> Pasture Pr<strong>of</strong>ile for <strong>the</strong> People’s Republic <strong>of</strong> China<br />

(Hu <strong>and</strong> Zhang, 2003a) <strong>and</strong> on Hu <strong>and</strong> Zhang (2003b). The Tibet -Qinghai<br />

plateau has been described in Chapter 8. Detailed description <strong>and</strong> discussion<br />

<strong>of</strong> herding in Tibet Autonomous Region is given in Nyima (2003); grazing<br />

management <strong>of</strong> alpine ecosystems on <strong>the</strong> Tibet Qinghai Plateau is discussed<br />

by Ruijun (2003a), who also provides detailed information on yak nutrition<br />

(Ruijun, 2003b). Transhumant systems in Xinjiang <strong>and</strong> <strong>the</strong> production <strong>of</strong><br />

winter fodder by herders is described by Wang (2003). China has vast grazing<br />

l<strong>and</strong>s . The pastoral areas are concentrated in six provinces <strong>and</strong> autonomous<br />

regions: Inner Mongolia (Plates 11.12, 11.13 <strong>and</strong> 11.14), Xinjiang (Plate 11.15),<br />

Tibet, Qinghai (Plates 11.16 <strong>and</strong> 11.17), Sichuan <strong>and</strong> Gansu, where extensive<br />

stock raising is <strong>the</strong> main agricultural enterprise. These six have 70 percent <strong>of</strong><br />

sheep , all <strong>the</strong> camels , 25 percent <strong>of</strong> cattle <strong>and</strong> goats , 44 percent <strong>of</strong> horses <strong>and</strong><br />

39 percent <strong>of</strong> donkeys in China.<br />

Mixed farming, on relatively small family farms , is <strong>the</strong> agricultural system<br />

<strong>of</strong> <strong>the</strong> rest <strong>of</strong> <strong>the</strong> country, where livestock are still important, but are mainly<br />

Plate 11.12<br />

Pastoral scene in July near Hailar City, Inner Mongolia , China .<br />

S.G. REYNOLDS


S.G. REYNOLDS<br />

S.G. REYNOLDS<br />

O<strong>the</strong>r grassl<strong>and</strong>s 437<br />

Plate 11.13<br />

Herder with sheep , Inner Mongolia , China .<br />

Plate 11.14<br />

Horse herd near Hailar City, Inner Mongolia , China.<br />

fed on crop residues , some sown pasture <strong>and</strong> limited rough grazing if available.<br />

The pasture <strong>of</strong> family farms still belong to <strong>the</strong> state <strong>and</strong> families pay according<br />

to a Long-term Grassl<strong>and</strong> Use Contract with <strong>the</strong> government; <strong>the</strong> livestock<br />

belong to <strong>the</strong> family. In <strong>the</strong> past decade, <strong>the</strong> government has put <strong>the</strong> “Longterm<br />

contract grassl<strong>and</strong> use system” into force with great effort. Under this<br />

system, grassl<strong>and</strong> productivity is improved by subdividing pastures <strong>and</strong> allocating<br />

long-term grazing right to individual families based on <strong>the</strong> number <strong>of</strong><br />

family members, with fencing (Plate 11.18), homestead <strong>and</strong> barn, establishing<br />

artificial grassl<strong>and</strong> <strong>and</strong> building infrastructure for water <strong>and</strong> electricity supply.<br />

In places, motorcycles are replacing horses (Plate 11.19).


438<br />

Plate 11.15<br />

Small ruminants on summer pasture , Altai, Xinjiang , China .<br />

Plate 11.16<br />

Qinghai summer pastures.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Despite its vast territory <strong>and</strong> <strong>the</strong> effects <strong>of</strong> topography <strong>and</strong> atmosphere<br />

circumfluence, <strong>the</strong>re are only three climatic zones : East Monsoon, Northwest<br />

Arid <strong>and</strong> Semi-arid , <strong>and</strong> <strong>the</strong> Qinghai-Tibet Alpine Zone. China can be divided<br />

into three natural zones, namely <strong>the</strong> monsoon zone in <strong>the</strong> east, which accounts<br />

for 45 percent <strong>of</strong> all l<strong>and</strong>; <strong>the</strong> arid inl<strong>and</strong> zone in <strong>the</strong> northwest, with 30 percent<br />

<strong>of</strong> all l<strong>and</strong>; <strong>and</strong> Qinghai-Tibet Plateau inl<strong>and</strong> zone in <strong>the</strong> southwest, with<br />

25 percent <strong>of</strong> all l<strong>and</strong>. The eastern monsoon zone is agricultural; <strong>the</strong> northwest<br />

<strong>and</strong> southwest are pastoral .<br />

S.G. REYNOLDS<br />

J.M. SUTTIE


J.M. SUTTIE<br />

PETER HARRIS<br />

O<strong>the</strong>r grassl<strong>and</strong>s 439<br />

Plate 11.17<br />

Qinghai, summer camp.<br />

Plate 11.18<br />

Qinghai: grass reserved for winter .


440<br />

Plate 11.19<br />

Qinghai – motorcycles are replacing horses.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 11.20<br />

Yak at 4 300 m in Linzhou County, about 70 km from Lhasa, Tibet Autonomous<br />

Region, China.<br />

PETER HARRIS<br />

S.G. REYNOLDS


O<strong>the</strong>r grassl<strong>and</strong>s 441<br />

Cattle (Bos taurus <strong>and</strong> Bos indicus ) are found everywhere below 2000 m.<br />

Yak (Plate 11.20) are mainly kept on <strong>the</strong> Qinghai-Tibet Plateau at 3 000 to<br />

5 000 m. There are 15 million yaks in China (Qinghai, Tibet, Sichuan, Gansu,<br />

Xinjiang <strong>and</strong> Yunnan), around 90 percent <strong>of</strong> <strong>the</strong> world total. Buffalo <strong>of</strong> <strong>the</strong><br />

swamp type are kept in humid tropical <strong>and</strong> subtropical areas. They are stallfed<br />

<strong>and</strong> mainly kept for draught <strong>and</strong> meat . Sheep , <strong>the</strong> main grazing stock, are<br />

kept in temperate areas within 30° to 50°N <strong>and</strong> 75° to 135°E. Goats are <strong>the</strong><br />

most widely distributed livestock in China, since <strong>the</strong>y can adapt to many climates<br />

<strong>and</strong> pastures. Horses are <strong>the</strong> traditional draught animals below 4 000 m.<br />

Camels are important in temperate deserts. There are some single humped<br />

camels in south Xinjiang, but <strong>the</strong> great majority are Bactrian.<br />

Feeding systems in <strong>the</strong> north differ from those in <strong>the</strong> west. Inner Mongolian<br />

grassl<strong>and</strong>s are flat <strong>and</strong> <strong>the</strong> environment is simple; pastures can be grazed at any<br />

season if water is available; animals are moved rotationally following a certain<br />

range <strong>and</strong> routine. In desert areas <strong>of</strong> Xinjiang <strong>the</strong>re are two seasonal grazing<br />

belts, basins <strong>and</strong> mountains. Animals graze in <strong>the</strong> basins in winter , move to<br />

mountains in spring <strong>and</strong> to high mountains in summer , returning to basins<br />

in late autumn ; this is a strict seasonal grazing system <strong>and</strong> animals spend 1 or<br />

2 months travelling from winter to summer pasture . On <strong>the</strong> Qinghai-Tibet<br />

Plateau , animals graze above 3 000 m, but pastures are still divided into seasonal<br />

belts: low cold season pasture <strong>and</strong> high warm season pasture.<br />

China had a total grassl<strong>and</strong> area <strong>of</strong> about 393 million hectares in 1994, about<br />

12 percent <strong>of</strong> <strong>the</strong> world’s grassl<strong>and</strong>. Usable grassl<strong>and</strong> is 331 million hectares<br />

– 35 percent <strong>of</strong> <strong>the</strong> national l<strong>and</strong> area. Most grassl<strong>and</strong> is in <strong>the</strong> nor<strong>the</strong>rn arid<br />

<strong>and</strong> cold zones . The six major pastoral provinces account for 75 percent <strong>of</strong><br />

national grassl<strong>and</strong> <strong>and</strong> around 70 percent <strong>of</strong> grazing livestock. The great size <strong>of</strong><br />

<strong>the</strong> country <strong>and</strong> its range <strong>of</strong> latitudes, altitudes <strong>and</strong> rainfall leads to a wide range<br />

<strong>of</strong> grassl<strong>and</strong> types . According to <strong>the</strong> Vegetation -habitat Classification System,<br />

grassl<strong>and</strong> in China can be divided into nine classes <strong>and</strong> 276 types. There are 69<br />

types in <strong>the</strong> Temperate Steppe Class, 39 types in <strong>the</strong> Temperate Desert Class,<br />

25 types in <strong>the</strong> Warm Shrubby Tussock Class, 39 types in <strong>the</strong> Tropical Shrubby<br />

Tussock Class, 51 types in <strong>the</strong> Temperate Meadow Class, 24 types in <strong>the</strong> Alpine<br />

Meadow Class, 17 types in <strong>the</strong> Alpine Steppe Class, 4 types in <strong>the</strong> Alpine<br />

Desert Class <strong>and</strong> 8 types in <strong>the</strong> Marshes Class.<br />

Many plants play an important role in forming a grassl<strong>and</strong> community<br />

in terms <strong>of</strong> coverage <strong>and</strong> herbage yield in large grassl<strong>and</strong> areas <strong>and</strong> various<br />

grassl<strong>and</strong> types . The most important species in different grassl<strong>and</strong> classes are<br />

considered below.<br />

The Temperate Steppe class is typically Leymus chinensis (Plate 11.21),<br />

Stipa baicalensis , S. gr<strong>and</strong>is , S. krylovi , S. bungeana , S. breviflora , S. glareosa ,<br />

S. klemenzi i , S. capillata , Festuca ovina , Cleistogenes squarrosa , Filifolium<br />

sibiricum , Artemisia frigida , A. halodendron , A. ordosica , A. intramongolica ,<br />

Thymus serpyllum var. mongolium <strong>and</strong> Ajania fruticulosa .


442<br />

Plate 11.21<br />

Leymus chinensis .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plants <strong>of</strong> <strong>the</strong> Alpine Steppe class are cold -resistant, mainly from <strong>the</strong><br />

Gramineae <strong>and</strong> Compositeae. The most important are Stipa purpureum,<br />

S. subsessiflora, Festuca ovina subsp. sphagnicola, Orinus thoroldii , Carex<br />

moorcr<strong>of</strong>tii , Artemisia stracheyi <strong>and</strong> A. wellbyi .<br />

Among <strong>the</strong> dominant plants <strong>of</strong> <strong>the</strong> Temperate Desert class are superxerocole<br />

shrubs <strong>and</strong> sub-shrubs; <strong>the</strong> most important are Seriphidium terraealbae<br />

, S. borotalense , Artemisia soongarica , Salsola passerina , S. laricifolia ,<br />

Sympegma regeli i , Anabasis salsa , Reaumuria soongarica , Ceratoides latens ,<br />

Kalidium schrenkianum , Potaninia mongolica , Nitraria sphaerocarpa , Ephedra<br />

przewalskii , Haloxylon erinaceum <strong>and</strong> H. persicum .<br />

The Alpine Desert class is ecologically in <strong>the</strong> harshest environment. The<br />

dominant plants have super ability to resist cold <strong>and</strong> drought . The most<br />

important are Rhodiola algida var. tangutica , Seriphidium rhodanthum <strong>and</strong><br />

Ceratoides compacta .<br />

The Warm Shrubby Tussock class is dominated by mainly grasses<br />

<strong>of</strong> medium height <strong>and</strong> some forbs. The most important are Bothriochloa<br />

ischaemum , Themeda tri<strong>and</strong>ra var. japonica , Pennisetum centrasiaticum ,<br />

Spodiopogon sibiricus , Imperata cylindrica var. major <strong>and</strong> Potentilla fulgens .<br />

Dominant plants <strong>of</strong> <strong>the</strong> Tropical Shrubby Tussock class are almost all<br />

hot-season grasses. The most important are Miscanthus floridulus , M. sinensis ,<br />

Imperata cylindrica var. major , Heteropogon contortus , Arundinella setosa ,<br />

A. hirta , Eremopogon delavayi , Eragrostis pilosa , Eulalia phaeothrix ,<br />

E. quadrinervis <strong>and</strong> Dicranopteris dichotoma .<br />

The Temperate Meadow class is dominated mainly by perennial temperate<br />

<strong>and</strong> medium-humid mesophytic grasses; some are halophytes or forbs. The<br />

most important are Achna<strong>the</strong>rum splendens , Arundinella hirta , Agrostis<br />

S.G. REYNOLDS


O<strong>the</strong>r grassl<strong>and</strong>s 443<br />

gigantea , Calamagrostis epigeios , Bromus inermis , Deyeuxia angustifolia ,<br />

D. arundinacea , Poa pratensis , P. angustifolia , Miscanthus sacchariflorus ,<br />

Phragmites communis , Brachypodium sylvaticum , Festuca ovina , Carex<br />

duriuscula , Potentilla anserina , Sanguisorba <strong>of</strong>ficinalis , Iris lactea var. chinensis ,<br />

Suaeda spp. <strong>and</strong> Sophora alopecuroides .<br />

Dominant plants <strong>of</strong> <strong>the</strong> Alpine Meadow class are mainly cold -resistant<br />

perennials. Most are Kobresia spp. <strong>and</strong> forbs. The most important are Kobresia<br />

pygmaea , K. humilis , K. capillifolia , K. bellardii , K. littledalei , K. tibetica ,<br />

Carex atr<strong>of</strong>usca , C. nivalis , C. stenocarpa , Blysmus sinocompressus , Poa alpina ,<br />

Polygonum viviparum <strong>and</strong> P. macrophyllum .<br />

Marsh classes are dominated mainly by Cyperaceae <strong>and</strong> Gramineae.<br />

The most important are Carex meyeriana , C. muliensis , C. appendiculata ,<br />

C. stenophylla , Scirpus yagara , S. triqueter , Phragmites communis <strong>and</strong> Triglochin<br />

palustre .<br />

Grassl<strong>and</strong> deterioration – a worldwide problem – is severe in China . According<br />

to data published in 1994, <strong>the</strong> area <strong>of</strong> degraded grassl<strong>and</strong> was 68 million hectares<br />

at <strong>the</strong> end <strong>of</strong> <strong>the</strong> 1980s – 27.5 percent <strong>of</strong> all grassl<strong>and</strong>. It has increased remarkably<br />

in <strong>the</strong> past decade. Now 90 percent <strong>of</strong> grassl<strong>and</strong> shows signs <strong>of</strong> deterioration,<br />

<strong>of</strong> which moderately degraded grassl<strong>and</strong> is 130 million hectares (32.5 percent <strong>of</strong><br />

total) <strong>and</strong> it is increasing by 20 million hectares each year.<br />

The government is taking vigorous measures to deal with grassl<strong>and</strong> degradation<br />

. According to <strong>the</strong> Planning Programme <strong>of</strong> National Ecological<br />

Environment Construction <strong>and</strong> Outline <strong>of</strong> Fifteenth Ten-Year Plan, <strong>the</strong> following<br />

should be achieved by 2010:<br />

• artificial grassl<strong>and</strong> <strong>and</strong> improved grassl<strong>and</strong> increased by 50 million hectares;<br />

• 33 million hectares <strong>of</strong> degraded grassl<strong>and</strong> <strong>and</strong> 20 million hectares <strong>of</strong> desertified<br />

l<strong>and</strong> improved ;<br />

• <strong>of</strong> 600 000 ha <strong>of</strong> eroded l<strong>and</strong> controlled ; <strong>and</strong><br />

• 6.7 million hectares <strong>of</strong> cropl<strong>and</strong> (on >25° slope) returned to forest <strong>and</strong> grass .<br />

Improvement is being undertaken by closure, with or without reseeding ,<br />

<strong>and</strong> is associated with a very large programme <strong>of</strong> returning sloping arable l<strong>and</strong><br />

to pasture .<br />

SOUTH ASIA<br />

Himalaya -Hindu Kush<br />

These grassl<strong>and</strong>s <strong>and</strong> associated grazing systems are discussed in detail in a<br />

recent FAO publication (Suttie <strong>and</strong> Reynolds, 2003) <strong>and</strong> in <strong>the</strong> country Pasture<br />

Pr<strong>of</strong>iles <strong>of</strong> <strong>the</strong> five countries: Afghanistan , Bhutan , India , Nepal <strong>and</strong> Pakistan<br />

(Thieme, 2000; Wangdi, 2002; Misri, 1999; Pariyar, 1999; Dost, 1998). The<br />

Himalayas (see Plate 11.22), which form a barrier between <strong>the</strong> Tibetan plateau<br />

<strong>and</strong> <strong>the</strong> plains <strong>of</strong> India <strong>and</strong> Pakistan, run obliquely northwest to sou<strong>the</strong>ast for<br />

about 2 500 km. They contain <strong>the</strong> highest mountains in <strong>the</strong> world <strong>and</strong> protect<br />

<strong>the</strong> sub continent from cold air from <strong>the</strong> north. The grazing zone goes beyond


444<br />

Plate 11.22<br />

The Himalaya -Hindu Kush <strong>and</strong> Tibetan Plateau area.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>the</strong> true Himalaya , through <strong>the</strong> foothills <strong>of</strong> <strong>the</strong> Karakoram to <strong>the</strong> Hindu Kush<br />

<strong>and</strong> most <strong>of</strong> Afghanistan’s mountains, to <strong>the</strong> shoulder <strong>of</strong> <strong>the</strong> Pamirs; in <strong>the</strong> west<br />

<strong>of</strong> Pakistan it includes <strong>the</strong> Balochistan upl<strong>and</strong>s. The grazing l<strong>and</strong>s <strong>of</strong> Nepal <strong>and</strong><br />

Bhutan are at <strong>the</strong> eastern end <strong>of</strong> <strong>the</strong> zone.<br />

There is a wide altitudinal range, from <strong>the</strong> plains at 200–300 m, to <strong>the</strong> snow<br />

line, which may be over 5 000 m in summer . Rainfall increases sou<strong>the</strong>astwards;<br />

<strong>the</strong> most nor<strong>the</strong>rly, semi -arid parts are in <strong>the</strong> rain-shadow <strong>of</strong> <strong>the</strong> Himalaya ,<br />

but <strong>the</strong>reafter <strong>the</strong> grassl<strong>and</strong>s receive <strong>the</strong> monsoon, <strong>and</strong> Nepal <strong>and</strong> Bhutan are<br />

humid. Temperatures also rise with decreasing latitude, <strong>the</strong> pastures range from<br />

about 37°N to 27°N. There are, <strong>the</strong>refore, considerable differences in vegetation<br />

, in altitudinal b<strong>and</strong>s <strong>and</strong> north–south changes.<br />

The flora <strong>of</strong> <strong>the</strong> semi -arid west shows considerable Western <strong>and</strong> Central<br />

Asia n influences – <strong>the</strong> wild olive grows as far east as western Nepal . In all cases,<br />

<strong>the</strong> Himalayas abut <strong>the</strong> great alluvial plains, but at low altitude <strong>the</strong> vegetation<br />

changes as well . In Pakistan , <strong>the</strong> foothills are under Acacia forest ; in <strong>the</strong> Nepal<br />

Terai <strong>the</strong>re is dipterocarp (sal – Shorea robusta ) forest, indicating higher rainfall<br />

<strong>and</strong> a warmer climate.<br />

Afghanistan is at <strong>the</strong> convergence <strong>of</strong> <strong>the</strong> Mediterranean, <strong>the</strong> Tibetan <strong>and</strong> <strong>the</strong><br />

Himalayan vegetation types , <strong>and</strong> towards <strong>the</strong> Pakistan border is influenced<br />

by <strong>the</strong> monsoon. For <strong>the</strong> vast majority <strong>of</strong> <strong>the</strong> grazing l<strong>and</strong>s , low precipitation ,<br />

with winter incidence, means that <strong>the</strong> main grazing vegetation type is Artemisia


J.M. SUTTIE<br />

O<strong>the</strong>r grassl<strong>and</strong>s 445<br />

steppe. The mainstay <strong>of</strong> this vast area is Artemisia; <strong>the</strong> plant <strong>of</strong> <strong>the</strong> extensive<br />

grazing l<strong>and</strong>s is generally referred to as A. maritima ; <strong>the</strong> altitude range <strong>of</strong> <strong>the</strong><br />

Artemisia steppe is from about 300 to 3 000 m. In neighbouring Turkmenistan<br />

<strong>and</strong> Uzbekistan , A. herba-alba , A. turanica <strong>and</strong> A. maikara are mentioned.<br />

Throughout most <strong>of</strong> its range, A. maritima is associated with Poa bulbosa ;<br />

Stipa spp are frequent. There is a very short flush <strong>of</strong> annuals in spring , but <strong>the</strong>se<br />

dry <strong>of</strong>f quickly. O<strong>the</strong>r sub-shrubs associated with Artemisia include species <strong>of</strong><br />

Acantholimon, Acanthophyllum, Astragalus , Cousinia <strong>and</strong> Ephedra . In eastern<br />

areas close to Pakistan, where rainfall is adequate, species <strong>of</strong> Cymbopogon ,<br />

Chrysopogon , Heteropogon , Aristida <strong>and</strong> o<strong>the</strong>r grasses <strong>of</strong> <strong>the</strong> monsoon areas<br />

occur, <strong>of</strong>ten associated with Acacia modesta <strong>and</strong> Olea cuspidata . By 2002,<br />

Afghanistan was in <strong>the</strong> ninth year <strong>of</strong> drought (see Plate 11.23); herds had been<br />

wiped out <strong>and</strong> <strong>the</strong> grassl<strong>and</strong>s were in a sorry state. Although 2003 was better,<br />

<strong>the</strong> 2004 precipitation was below normal; however, <strong>the</strong>re was good snowfall in<br />

<strong>the</strong> winter <strong>of</strong> 2004/2005 so <strong>the</strong> 2005 outlook was more promising. But <strong>the</strong> big<br />

reduction in small <strong>and</strong> large ruminants has resulted in much more <strong>of</strong> <strong>the</strong> rangel<strong>and</strong>s<br />

being ploughed for crops , particularly in <strong>the</strong> north. Livestock recovery<br />

is likely to be slow.<br />

In Nepal , at <strong>the</strong> o<strong>the</strong>r end <strong>of</strong> <strong>the</strong> precipitation range, tropical pasturel<strong>and</strong>s are<br />

dominated by <strong>the</strong> grasses Phragmites karka , Saccharum spontaneum , Imperata<br />

cylindrica , Cymbopogon jwarancusa <strong>and</strong> Bothriochloa intermedia . Because <strong>of</strong><br />

human activity, Imperata cylindrica is dominant throughout, <strong>and</strong> <strong>the</strong> weed<br />

Eupatorium sp. is gradually replacing many palatable plants. Subtropical pas-<br />

Plate 11.23<br />

Severely degraded grassl<strong>and</strong> , Faryab,<br />

Afghanistan.


446<br />

Plate 11.24<br />

Transhumant Kuchi flock after rain, near K<strong>and</strong>ahar, Afghanistan .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

tures, associated with Pinus roxburghii forests, are heavily grazed <strong>and</strong> infested<br />

with Eupatorium adenophorum , Pteridium aquilinum , Urtica parviflora<br />

<strong>and</strong> Artemisia vulgaris . The main forage species are Arundinella bengalensis<br />

, A. nepalensis , Bothriochloa intermedia, B. pertusa , Chrysopogon gryllus ,<br />

Cynodon dactylon , Heteropogon contortus , Apluda mutica , Brachiaria decumbens<br />

, Imperata cylindrica <strong>and</strong> Eragrostis pilosa . Temperate pastures are associated<br />

with oak or mixed broad-leafed species or bluepine (Pinus wallichianai ),<br />

but, due to heavy grazing , less palatable species such as Arundinella hookeri<br />

are found. The common forages are Arundinella hookeri, Andropogon tristis ,<br />

Poa spp. , Chrysopogon gryllus, Dactylis glomerata , Stipa concinna , Festuca spp. ,<br />

Cymbopogon spp., Bothriochloa spp., Desmodium spp. <strong>and</strong> Agrostis micrantha<br />

. Subalpine pastures are associated with a variety <strong>of</strong> shrubs. Common genera<br />

are Berberis , Caragana , Hippophae , Juniperus , Lonicera , Potentilla , Rosa ,<br />

Spiraea <strong>and</strong> Rhododendron . In many areas, Pipthantus nepalensis has invaded<br />

productive pastures once dominated by Danthonia spp. The common grasses<br />

are Elymus spp., Festuca spp., Stipa spp., Bromus himalaicus , Chrysopogon<br />

gryllus, Cymbopogon schoenanthus , <strong>and</strong> Koeleria cristata . Elymus nutans is<br />

<strong>of</strong> great importance at high elevation s. Alpine pastures are associated with<br />

Rhododendron. The main types <strong>of</strong> grazed vegetation are: Kobresia spp. , Cortia<br />

depressa , <strong>and</strong> Carex –Agrostis–Poa associations.<br />

The grassl<strong>and</strong>s are exploited by both sedentary <strong>and</strong> transhumant groups<br />

(see Plate 11.24); <strong>the</strong> latter belong to minorities. Population pressure is very<br />

high throughout <strong>the</strong> zone <strong>and</strong> all suitable (along with much unsuitable) l<strong>and</strong> is<br />

cultivated. Transhumant groups move between <strong>the</strong> plains in winter <strong>and</strong> alpine<br />

J.M. SUTTIE


J.M. SUTTIE<br />

O<strong>the</strong>r grassl<strong>and</strong>s 447<br />

Plate 11.25<br />

Traditional straw storage platform<br />

<strong>and</strong> buffalo shelter in <strong>the</strong> Nepal<br />

Terai near Tarahara.<br />

pastures in summer . The upward movement to cooler areas in summer provides<br />

better fodder <strong>and</strong> makes use <strong>of</strong> seasonal alpine <strong>and</strong> subalpine pastures,<br />

but it is also almost essential for small stock because <strong>the</strong>y would suffer severely<br />

from disease <strong>and</strong> parasites were <strong>the</strong>y to remain on <strong>the</strong> plains during <strong>the</strong> hot <strong>and</strong><br />

very humid monsoon season. Overwintering in or near farming areas in <strong>the</strong><br />

warm plains has several advantages: herders can buy crop residues (see Plate<br />

11.25), feed grain <strong>and</strong> fodder <strong>and</strong> graze stubbles; <strong>the</strong>y are close to markets for<br />

stock <strong>and</strong> produce, <strong>and</strong> can <strong>of</strong>ten find seasonal employment. Sedentary groups<br />

may send stock to summer pastures when <strong>the</strong>se are accessible. Transhumants<br />

must herd <strong>the</strong>ir flocks through or between farms <strong>and</strong> forest l<strong>and</strong> to reach <strong>the</strong>ir<br />

seasonal grazing pastures. In places that receive <strong>the</strong> monsoon, designated areas<br />

are set aside through <strong>the</strong> monsoon periods <strong>and</strong>, after <strong>the</strong> rains, hay is made<br />

from over-ripe herbage; it is <strong>of</strong> very low quality but is never<strong>the</strong>less highly<br />

prized. The grassl<strong>and</strong>s, including hayfields, are extremely steep <strong>and</strong> trekking<br />

routes are difficult.<br />

Herders <strong>and</strong> herding ethnic groups tend to specialize in ei<strong>the</strong>r large or small<br />

ruminants; small stock are more important in <strong>the</strong> dry areas. Camels are raised<br />

in Afghanistan <strong>and</strong> Pakistan ’s Balochistan , <strong>and</strong> are used as transport to highl<strong>and</strong>


448<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

grazing , but are not used fur<strong>the</strong>r east. Yak are important in Ladakh in India ,<br />

Nepal <strong>and</strong> Bhutan , <strong>and</strong> a few are present in <strong>the</strong> coldest parts <strong>of</strong> Afghanistan<br />

<strong>and</strong> Pakistan. In Bhutan <strong>and</strong> eastern India, some mithun (Bos gaurus ) <strong>and</strong> <strong>the</strong>ir<br />

crosses with cattle are raised. Buffalo are kept in some farming areas, but are far<br />

more important on <strong>the</strong> plains. Indigenous breeds are used throughout, except<br />

in some urban areas, notably Quetta, where Afghan refugees have brought<br />

exotic black -<strong>and</strong>-white cattle <strong>and</strong> management skills.<br />

In Nepal <strong>and</strong> Bhutan , buffalo graze <strong>the</strong> lowest pastures, cattle slightly higher,<br />

cattle × yak hybrids <strong>the</strong> high pastures, <strong>and</strong> pure yak <strong>the</strong> highest. Seasonal<br />

movements mean that <strong>the</strong> winter pastures <strong>of</strong> one group may be <strong>the</strong> summer<br />

pastures <strong>of</strong> that below.<br />

It is generally agreed that Himalayan pastures are overstocked <strong>and</strong> degraded<br />

(Plate 11.23), although <strong>the</strong>re is little historical evidence as to <strong>the</strong>ir former state.<br />

Regulations concerning forest grazing , stock numbers, seasons for using various<br />

pastures, as well as grazing fees, were codified in <strong>the</strong> late nineteenth century<br />

for India (including present-day Pakistan ), but with increasing population <strong>and</strong><br />

political pressure <strong>the</strong>se rules are not always observed.<br />

India<br />

The Himalayan l<strong>and</strong>s have been described above. This is based on Misri (1999).<br />

India has <strong>the</strong> largest cattle herd <strong>of</strong> any country, 226 million (FAOSTAT, 2004)<br />

<strong>and</strong> also has 97 million buffalo; <strong>the</strong>se are mainly raised by sedentary groups<br />

<strong>and</strong> fed on opportunistic grazing , crop residues <strong>and</strong>, in some cases, usually<br />

irrigated , fodder. The irrigated tracts <strong>of</strong> nor<strong>the</strong>rn India have intensive fodder<br />

production for stall-fed stock, <strong>and</strong> a similar situation is found in <strong>the</strong> irrigated<br />

tracts <strong>of</strong> Pakistan .<br />

The grazing <strong>of</strong> animals takes place on a variety <strong>of</strong> grazing l<strong>and</strong>s . Pastures <strong>and</strong><br />

grassl<strong>and</strong>s have <strong>of</strong>ten resulted from degradation <strong>and</strong> destruction <strong>of</strong> forests until<br />

savannahs are formed. True pastures as climax vegetation are found only in subalpine<br />

<strong>and</strong> alpine pastures in <strong>the</strong> higher altitudes <strong>of</strong> <strong>the</strong> Himalayas. Dabadghao<br />

<strong>and</strong> Shankaranarayan (1973) have grassl<strong>and</strong>s classified into five types .<br />

• Sehima – Dichanthium grassl<strong>and</strong>s are spread over <strong>the</strong> Central Indian plateau,<br />

Chota Nagpur plateau <strong>and</strong> Aravallis. The elevation ranges between 300<br />

<strong>and</strong> 1 200 m.<br />

• Dichanthium – Cenchrus – Lasiurus grassl<strong>and</strong>s cover nor<strong>the</strong>rn parts <strong>of</strong><br />

Gujarat, Rajasthan, Aravalli ranges, southwestern Uttar Pradesh, Delhi <strong>and</strong><br />

Punjab. The elevation ranges between 150 <strong>and</strong> 300 m.<br />

• Phragmites – Saccharum – Imperata grassl<strong>and</strong>s are in <strong>the</strong> Gangetic plains,<br />

<strong>the</strong> Brahamputra Valley <strong>and</strong> <strong>the</strong> plains <strong>of</strong> Punjab. The elevation ranges<br />

between 300 <strong>and</strong> 500 m.<br />

• Themeda – Arundinella grassl<strong>and</strong>s are found in <strong>the</strong> States <strong>of</strong> Manipur,<br />

Assam, West Bengal, Uttar Pradesh, Himachal Pradesh <strong>and</strong> Jammu <strong>and</strong><br />

Kashmir. The elevation ranges between 350 <strong>and</strong> 1 200 m.


J.M. SUTTIE<br />

O<strong>the</strong>r grassl<strong>and</strong>s 449<br />

• Temperate – Alpine grassl<strong>and</strong>s are found above 2 100 m <strong>and</strong> include <strong>the</strong> temperate<br />

<strong>and</strong> cold arid areas <strong>of</strong> Jammu <strong>and</strong> Kashmir, Himachal Pradesh, Uttar<br />

Pradesh, West Bengal <strong>and</strong> <strong>the</strong> nor<strong>the</strong>astern states.<br />

The transhumant system is prevalent in <strong>the</strong> Himalayan region. However,<br />

this system still exists in some states situated in <strong>the</strong> plains, such as Rajasthan<br />

(which abuts on similar desert zones <strong>of</strong> Pakistan ), Madhya Pradesh, Tamil<br />

Nadu, Gujrat <strong>and</strong> Uttar Pradesh.<br />

The rural system involves free grazing on community grazing l<strong>and</strong>s <strong>and</strong><br />

forests, supplemented with green fodder cultivated in <strong>the</strong> farmer’s fields .<br />

During lean periods, such as summer <strong>and</strong> autumn , tree leaf fodder is also<br />

used. These monsoon grassl<strong>and</strong>s are only productive during <strong>the</strong> rainy season,<br />

<strong>and</strong> <strong>the</strong> dry season is long <strong>and</strong> severe; <strong>the</strong>ir feeding quality, like that <strong>of</strong><br />

all grassl<strong>and</strong>s with marked wet <strong>and</strong> dry seasons, is mediocre when <strong>the</strong>y are<br />

young <strong>and</strong> poor <strong>the</strong>reafter.<br />

Pakistan<br />

The Himalayan l<strong>and</strong>s have been described above. In <strong>the</strong> arid regions <strong>of</strong><br />

Pakistan (Dost, 1998) complexity, variability <strong>and</strong> uncertainty characterize <strong>the</strong><br />

grazing systems . Livestock grazing practices in <strong>the</strong> Thal, Cholistan, Kohistan<br />

<strong>and</strong> Tharparkar desert areas are similar. In early winter , people leave <strong>the</strong>ir<br />

villages in search <strong>of</strong> better grazing <strong>and</strong> migrate into irrigated areas. In <strong>the</strong> early<br />

monsoon season, when forage is abundant, during July–November, <strong>the</strong>y return<br />

to <strong>the</strong>ir villages <strong>and</strong> leave <strong>the</strong>ir animals to graze. Private livestock are allowed to<br />

Plate 11.26<br />

Sheep grazing stubble , with Acacia nilotica on field edges, in <strong>the</strong> Punjab,<br />

Pakistan .


450<br />

Plate 11.27<br />

Delivering fodder to urban livestock, Punjab, Pakistan<br />

Plate 11.28<br />

Harvesting oat fodder, Punjab, Pakistan .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

graze state-owned rangel<strong>and</strong>s after paying nominal grazing fees. Cattle , sheep ,<br />

goats <strong>and</strong> camels graze <strong>the</strong> Tharparker <strong>and</strong> Kohistan rangel<strong>and</strong>s, but buffalo<br />

are not common. The great majority <strong>of</strong> large ruminants, however, are not kept<br />

on grazing l<strong>and</strong>s but in <strong>the</strong> agricultural tracts, mainly on irrigated holdings,<br />

where <strong>the</strong>y can graze after crops are harvested (see Plate 11.26); usually <strong>the</strong>y<br />

J.M. SUTTIE<br />

J.M. SUTTIE


O<strong>the</strong>r grassl<strong>and</strong>s 451<br />

are stall-fed on crop residues (see Plate 11.27), cultivated fodder (which is<br />

grown on a very large scale, for example fodder oats – see Plate 11.28) <strong>and</strong>,<br />

for commercial dairying, concentrates. Production systems involving intensive<br />

fodder production are described by Dost (2003). Pakistan has some 25 million<br />

buffalo (India <strong>and</strong> Pakistan combined have 71% <strong>of</strong> <strong>the</strong> world’s buffalo) <strong>and</strong> 23<br />

million cattle (FAOSTAT, 2004), largely fed on-farm .<br />

THE NEAR EAST<br />

Syrian Arab Republic<br />

The country is largely pastoral , with 45 percent <strong>of</strong> its l<strong>and</strong> being grazing<br />

<strong>and</strong> pasture <strong>and</strong> 20 percent desert (Masri, 2001). The climate is typically<br />

Mediterranean <strong>and</strong> precipitation is low, decreasing towards <strong>the</strong> interior. Most<br />

<strong>of</strong> <strong>the</strong> grazing l<strong>and</strong> is in <strong>the</strong> semi -desert <strong>and</strong> desert (badia ) with less than<br />

200 mm rainfall; <strong>the</strong>re is a little mountain grazing; plains with over 200 mm<br />

rainfall are now under rainfed crops . Cattle are kept in <strong>the</strong> agricultural areas<br />

but are absent from <strong>the</strong> main grazing l<strong>and</strong>s.<br />

From earliest times until <strong>the</strong> end <strong>of</strong> <strong>the</strong> Second <strong>World</strong> War, Syria n grazing<br />

l<strong>and</strong>s were under tribal control , population density was low <strong>and</strong> <strong>the</strong> herders<br />

were nomadic, moving seasonally with <strong>the</strong>ir flocks. Pastoral communities<br />

evolved codes <strong>of</strong> laws <strong>and</strong> customs <strong>and</strong> <strong>the</strong> organization <strong>of</strong> groups <strong>and</strong> subgroups<br />

based on family relationship. Each group used to maintain grazing<br />

rights on certain resources in its traditional l<strong>and</strong> as hema (pasture reserved for<br />

use in drought or emergency) <strong>and</strong> negotiated when necessary with <strong>the</strong> o<strong>the</strong>r<br />

groups for movement <strong>of</strong> its livestock to areas <strong>of</strong> more favourable climatic conditions<br />

during periods <strong>of</strong> drought. The chief was <strong>the</strong> first among equals, <strong>and</strong><br />

unanimously obeyed <strong>and</strong> respected by members. The social structure <strong>of</strong> <strong>the</strong><br />

pastoral groups was close to a cooperative organization.<br />

Large areas <strong>of</strong> grazing l<strong>and</strong> were only accessible once <strong>the</strong> autumn rains had<br />

fallen, <strong>and</strong> herds had to leave <strong>the</strong>m once surface supplies <strong>of</strong> water ran out, so<br />

<strong>the</strong> pastures were rested for a long period <strong>of</strong> <strong>the</strong> year. There was no external<br />

feed source so stock numbers were limited to what could be carried through<br />

<strong>the</strong> lean season on available pasture <strong>and</strong> water. There was no rainfed cropping<br />

on marginal l<strong>and</strong>s.<br />

After <strong>the</strong> war, <strong>the</strong> situation changed rapidly. The central authorities<br />

became much stronger <strong>and</strong> <strong>the</strong> tribal system was disintegrating. Motor transport,<br />

introduced during <strong>the</strong> war, allowed transport <strong>of</strong> goods, water <strong>and</strong> feed,<br />

making large areas <strong>of</strong> grazing accessible for much <strong>of</strong> <strong>the</strong> year. Grazing l<strong>and</strong><br />

was nationalized <strong>and</strong> became an open -access resource with no supervision<br />

over its use. Settlement <strong>of</strong> <strong>the</strong> Bedouin became <strong>of</strong>ficial policy; this greatly<br />

improved <strong>the</strong>ir access to medical care, education, water <strong>and</strong> o<strong>the</strong>r services,<br />

<strong>and</strong> led on <strong>the</strong> one h<strong>and</strong> to a rapidly increasing population, <strong>and</strong> on <strong>the</strong> o<strong>the</strong>r a<br />

great reduction in mobile herding . Cheap cereals allowed increasing numbers<br />

<strong>of</strong> stock to be kept through <strong>the</strong> lean season.


452<br />

Plate 11.29<br />

Syrian rangel<strong>and</strong> has become degraded due to overgrazing.<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Marginal l<strong>and</strong> was increasingly cleared for rainfed cropping. Yields are low<br />

<strong>and</strong> uncertain; if <strong>the</strong>y seem too low or <strong>the</strong> crop is unlikely to mature because <strong>of</strong><br />

drought , it will be grazed. Clearing <strong>of</strong> grazing l<strong>and</strong> was encouraged by granting<br />

l<strong>and</strong> rights to those who developed it.<br />

Sheep are <strong>the</strong> main grazing livestock; <strong>the</strong> only local breed, <strong>the</strong> Awasii , is a<br />

milch sheep that is well adapted to harsh desert conditions, <strong>and</strong> its fat tail provides<br />

a reserve <strong>of</strong> nutrients for periods <strong>of</strong> feed shortage. They graze in <strong>the</strong> badia<br />

from late autumn till late spring , with supplements, <strong>the</strong>n <strong>the</strong>y migrate to <strong>the</strong><br />

rainfed <strong>and</strong> irrigated areas, clearing all crop residues (cereal, cotton, beet <strong>and</strong><br />

summer vegetables) before returning again to <strong>the</strong> badia. The main constraint to<br />

sheep production is degradation <strong>of</strong> grazing l<strong>and</strong> (Plate 11.29), which increases<br />

dependency on supplementary feed.<br />

The subsidized state feed policy puts pressure on <strong>the</strong> already degraded<br />

pasture through an increase in sheep numbers, which get most <strong>of</strong> <strong>the</strong>ir food as<br />

concentrates but continue to eat any available herbage. The sheep population<br />

was 2.9 million in 1961; it rose to 5.5 million in 1971, 10.5 million by 1981 <strong>and</strong><br />

peaked at 15.5 million in 1991; it <strong>the</strong>n fell to just over 10 million, <strong>and</strong> for <strong>the</strong><br />

past seven years has been just over 13 million (FAOSTAT, 2004). Goats are <strong>the</strong><br />

MARZIO MARZOT


O<strong>the</strong>r grassl<strong>and</strong>s 453<br />

second most numerous livestock; <strong>the</strong>ir numbers rose from 439 000 in 1961 to<br />

1 million in 1981, <strong>and</strong> have remained at that level. Two main types <strong>of</strong> goat are<br />

kept; <strong>the</strong> Shami goat is a milch breed, <strong>and</strong> <strong>the</strong>y are kept around homesteads; <strong>the</strong><br />

o<strong>the</strong>r is <strong>the</strong> mountain goat, which grazes in <strong>the</strong> mountain ranges.<br />

Before <strong>the</strong> Second <strong>World</strong> War <strong>the</strong> Syrian badia was in good condition ,<br />

climax plants like Salsola vermiculata , Atriplex leucoclada , Artemisia herbaalba<br />

<strong>and</strong> Stipa barbata were widespread <strong>and</strong> flocks <strong>of</strong> gazelle were present.<br />

Herders went to <strong>the</strong> badia with <strong>the</strong> onset <strong>of</strong> rains in autumn <strong>and</strong> had to leave<br />

when <strong>the</strong> water supply dried up in late Spring. Range livestock depended<br />

on grazing until 1958, when concentrate feeds were introduced. The rate <strong>of</strong><br />

concentrate use increased to 25, 50 <strong>and</strong> 75 percent in <strong>the</strong> 1960s, 1970s <strong>and</strong><br />

1980s, respectively.<br />

Jordan<br />

About 90 percent, or 80 771 km 2 , <strong>of</strong> <strong>the</strong> Kingdom is grazing l<strong>and</strong> , 69 077 km 2 <strong>of</strong><br />

which receives less than 100 mm <strong>of</strong> rainfall , <strong>and</strong> 1 000 km 2 <strong>of</strong> marginal grazing<br />

with 100–200 mm annual rainfall. Natural <strong>and</strong> man-made forests cover 760 km 2 ,<br />

out <strong>of</strong> 1 300 km 2 registered as forests (Al-Jaloudy, 2001). There are also about<br />

500 km 2 <strong>of</strong> state-owned l<strong>and</strong> used for grazing in mountainous areas.<br />

The average altitude <strong>of</strong> <strong>the</strong> highl<strong>and</strong>s ranges from 600 m in <strong>the</strong> north to<br />

1 000 m in <strong>the</strong> middle <strong>and</strong> 1 500 m in <strong>the</strong> south. There is a semi -arid zone (350–<br />

500 mm annual rainfall ) with a small subhumid zone (over 500 mm annual rainfall).<br />

The Arid Zone comprises <strong>the</strong> plains between <strong>the</strong> badia <strong>and</strong> <strong>the</strong> highl<strong>and</strong>s.<br />

Rainfall ranges between 200 mm in <strong>the</strong> east <strong>and</strong> 350 mm in <strong>the</strong> west. Rainfed<br />

crops are mainly barley (in areas with 200–300 mm rainfall) wheat <strong>and</strong> fruit trees<br />

(in areas with between 300 <strong>and</strong> 350 mm rainfall). Badia (Eastern Desert ), which<br />

covers about 8 million hectares – 90 percent <strong>of</strong> <strong>the</strong> Kingdom – has very sparse<br />

vegetation cover <strong>and</strong> an annual rainfall <strong>of</strong> less than 200 mm. In <strong>the</strong> past it was<br />

only used for grazing . In <strong>the</strong> last two decades, however, 20 000 ha have been<br />

irrigated , using underground water.<br />

Jordan is on <strong>the</strong> eastern margins <strong>of</strong> <strong>the</strong> Mediterranean climatic zone. This<br />

climate is characterized by hot, dry summers <strong>and</strong> cool, wet winters; more than<br />

90 percent <strong>of</strong> <strong>the</strong> country receives less than 200 mm annual precipitation .<br />

There are four bioclimatic zones .<br />

• Mediterranean: This region is restricted to <strong>the</strong> highl<strong>and</strong>s from 700–1750 m<br />

above sea level. The rainfall ranges from 300–600 mm. The minimum annual<br />

temperature ranges from 5° to 10°C.<br />

• Irano-Turanian: A narrow strip that surrounds all <strong>the</strong> Mediterranean ecozone<br />

except in <strong>the</strong> north; it is treeless . The vegetation is mainly small shrubs <strong>and</strong><br />

bushes such as Artemisia herba-alba , <strong>and</strong> Anabasis syriaca . Altitudes range<br />

from 500 to 700 m, <strong>and</strong> rainfall ranges from 150 to 300 mm.<br />

• Saharo-Arabian: This is <strong>the</strong> eastern desert or badia <strong>and</strong> comprises almost<br />

80 percent <strong>of</strong> Jordan . It is flat except for a few hills or small volcanic moun-


454<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

tains. Altitude is in <strong>the</strong> 500–700 m range. The mean annual rainfall ranges<br />

from 50 to 200 mm, <strong>and</strong> mean annual minimum temperatures range from<br />

15° to 2°C. Vegetation is dominated by small shrubs <strong>and</strong> small annuals in<br />

<strong>the</strong> wadi beds.<br />

• Sudanian : It starts from <strong>the</strong> nor<strong>the</strong>rn part <strong>of</strong> <strong>the</strong> Dead Sea <strong>and</strong> ends at <strong>the</strong> tip<br />

<strong>of</strong> <strong>the</strong> Gulf <strong>of</strong> Aqaba. The vegetation is characterized by a tropical tree element,<br />

such as Acacia spp. <strong>and</strong> Ziziphus spina-christi , in addition to some shrubs <strong>and</strong><br />

annual herbs.<br />

Badia (semi -desert )<br />

The most significant use <strong>of</strong> this zone is pastoralism. Sheep <strong>and</strong> goats graze<br />

<strong>the</strong> forage produced on <strong>the</strong> desert range in <strong>the</strong> short period following rainfall ;<br />

precipitation is less than 100 mm/year, which falls <strong>of</strong>f towards <strong>the</strong> east <strong>and</strong> <strong>the</strong><br />

south till it reaches 50 mm or less. Most are state l<strong>and</strong>s. Artemisia herba- alba,<br />

Retama raetam , Achillea fragrantissim a <strong>and</strong> Poa bulbosa are common in <strong>the</strong><br />

wadi beds, while <strong>the</strong> unpalatable Anabasis sp. is present in most places. Despite<br />

its deterioration , this is <strong>the</strong> main grazing l<strong>and</strong> <strong>of</strong> Jordan . The average annual<br />

dry matter production is 40 kg/ha in normal years; this can rise to 150 kg/ha<br />

in protected areas <strong>and</strong> range reserves . Steppes were used generally for grazing,<br />

but it is estimated that about 90 percent <strong>of</strong> <strong>the</strong> steppe has been privatized <strong>and</strong><br />

ploughed for barley.<br />

There are estimated to be 2 200 000 head <strong>of</strong> sheep <strong>and</strong> goats in Jordan .<br />

Nomadic grazing has declined to less than 10 percent <strong>of</strong> <strong>the</strong> sheep <strong>and</strong> goats,<br />

which belong to less than 5 percent <strong>of</strong> herders. The ratio <strong>of</strong> semi -settled herds<br />

has increased to more than 70 percent <strong>of</strong> sheep <strong>and</strong> goats. The remaining small<br />

ruminants (about 20 percent) follow a system that is mixed with agriculture,<br />

especially in <strong>the</strong> west <strong>of</strong> <strong>the</strong> Kingdom.<br />

Small ruminant production systems developed gradually in <strong>the</strong> middle <strong>of</strong><br />

<strong>the</strong> past century as a result <strong>of</strong> a number <strong>of</strong> changes: increasing settlement <strong>of</strong><br />

<strong>the</strong> nomadic Bedouin in <strong>the</strong> marginal areas; a change to sheep <strong>and</strong> goat raising<br />

instead <strong>of</strong> camels ; deterioration <strong>of</strong> traditional grazing systems (eastward<br />

<strong>and</strong> westward trips); spread <strong>of</strong> <strong>the</strong> use <strong>of</strong> vehicles for movement <strong>of</strong> flocks <strong>and</strong><br />

equipment; <strong>and</strong> increased dependence on imported feed.<br />

The traditional mobile system prevails in <strong>the</strong> arid to semi -arid east <strong>and</strong><br />

south. Herds move from one place to ano<strong>the</strong>r, on foot or by truck, looking for<br />

grazing or water. The sheep depend on natural herbage as <strong>the</strong>ir main source <strong>of</strong><br />

feed, in addition to <strong>the</strong> feed given in winter for a period that varies with availability<br />

<strong>of</strong> herbage.<br />

In <strong>the</strong> semi -nomadic system, sheep depend partially on grazing <strong>and</strong> crop<br />

by-products. They move to l<strong>and</strong> adjacent to <strong>the</strong> fields <strong>and</strong> spend <strong>the</strong> winter<br />

around <strong>the</strong> houses, where <strong>the</strong>y survive on <strong>the</strong> feed given to <strong>the</strong>m.<br />

In <strong>the</strong> settled (semi -extensive ) system, stock are kept in fattening units but<br />

graze in <strong>the</strong> morning <strong>and</strong> return to <strong>the</strong>ir units in <strong>the</strong> afternoon. They feed on


O<strong>the</strong>r grassl<strong>and</strong>s 455<br />

crop by-products <strong>and</strong> <strong>the</strong> adjacent natural grazing . Supplementary feed is given<br />

as required.<br />

In <strong>the</strong> intensive system, sheep are kept on permanent farms with modern<br />

facilities <strong>and</strong> equipment. They are given balanced feed, <strong>and</strong> health care is provided.<br />

Existing statistics indicate that <strong>the</strong>re are 2 200 000 small ruminants, which<br />

depend for half <strong>the</strong>ir food requirements on imported feed. Natural grazing supplies<br />

only 25–30 percent <strong>of</strong> <strong>the</strong>ir requirements, as its productivity has declined<br />

to half <strong>of</strong> its potential <strong>and</strong> <strong>the</strong> area has decreased. In <strong>the</strong> past, <strong>the</strong> availability <strong>of</strong><br />

fodder <strong>and</strong> water, <strong>and</strong> <strong>the</strong> search for <strong>the</strong>m, were <strong>the</strong> limiting factors for movement<br />

<strong>of</strong> herds. Nowadays, food <strong>and</strong> water are transported to herds wherever<br />

<strong>the</strong>y are, <strong>and</strong> it is possible to quickly transport <strong>the</strong> herds <strong>the</strong>mselves. In 1930,<br />

<strong>the</strong> sheep herd was 229 100 <strong>and</strong> remained at a similar level until 1950; by 1970<br />

it had doubled; <strong>and</strong> by 1990 had reached 1.5 million, where it currently st<strong>and</strong>s.<br />

Goat numbers in 1930 were 289 500; <strong>the</strong>y have risen in recent years, to 479 000<br />

in 1990 <strong>and</strong> 547 500 in 2003, but to nothing like <strong>the</strong> extent <strong>of</strong> sheep, which are<br />

far better suited to intensive fattening.<br />

Existing policies are not comprehensive <strong>and</strong> are incompatible with national<br />

needs <strong>and</strong> development plans. Feed subsidy policies from <strong>the</strong> 1980s until 1997<br />

brought about <strong>the</strong> unusual increase in sheep <strong>and</strong> goats numbers <strong>and</strong> <strong>the</strong> deterioration<br />

in local production <strong>of</strong> feed. Also allocation <strong>of</strong> wide tracts <strong>of</strong> <strong>the</strong> best<br />

range to private ownership caused <strong>the</strong>ir deterioration <strong>and</strong> desertification.<br />

Pastoral communities informally claim common tribal rights <strong>and</strong> enjoy free<br />

access <strong>and</strong> use <strong>of</strong> natural resources in <strong>the</strong>ir rangel<strong>and</strong>s, but <strong>the</strong>se claims are<br />

only recognized in settled areas. In all <strong>the</strong> unsettled areas <strong>the</strong> state asserts ownership<br />

regardless <strong>of</strong> customary tribal claims. State claims over grazing l<strong>and</strong>s<br />

changed <strong>the</strong> traditional welfare system, caused <strong>the</strong> breakdown <strong>of</strong> resource<br />

allocation mechanisms <strong>and</strong> transformed secured-access rights into securedtenure<br />

rights. Consequently, customary management rules are <strong>of</strong>ten no longer<br />

being enforced. State appropriation did not deny local communities access to<br />

<strong>the</strong>ir traditional pasture , but favoured a situation <strong>of</strong> open -access to grazing <strong>and</strong><br />

expansion <strong>of</strong> barley cultivation .<br />

EUROPE<br />

Turkey<br />

Turkey lies between 36° <strong>and</strong> 42°N <strong>and</strong> 26° <strong>and</strong> 45°E; its pasture area is<br />

124 000 km 2 but it is declining (Karagöz, 2001). Pastures belong to <strong>the</strong> state <strong>and</strong><br />

are open for common use. According to <strong>the</strong> (1998) Pasture Law, grazing will<br />

be assigned to municipalities or village communities once <strong>the</strong>ir boundaries are<br />

determined <strong>and</strong> certified; <strong>the</strong>reafter carrying capacity <strong>and</strong> duration <strong>of</strong> grazing<br />

will be determined for each area, <strong>the</strong>n <strong>the</strong> villages will be given <strong>the</strong> right to<br />

graze <strong>the</strong> determined <strong>and</strong> certified areas for a given period with a set number<br />

<strong>of</strong> animals.


456<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Turkey has an average altitude <strong>of</strong> 1 131 m; low (0–250 m), medium (250–<br />

1 000 m) <strong>and</strong> high altitude areas (>1 000 m) constitute 10.0, 34.5 <strong>and</strong> 55.5 percent<br />

<strong>of</strong> <strong>the</strong> country, respectively. The European section is fertile hilly l<strong>and</strong>. The<br />

Asian part consists <strong>of</strong> an inner high plateau, with mountain ranges along <strong>the</strong><br />

north <strong>and</strong> south coasts.<br />

Average annual temperatures vary between 18° <strong>and</strong> 20°C on <strong>the</strong> south coast,<br />

fall to 14° to 15°C on <strong>the</strong> west coast, <strong>and</strong>, depending on elevation, fluctuate<br />

between 4° <strong>and</strong> 18°C in <strong>the</strong> interior. Substantial temperature variations are<br />

observed between <strong>the</strong> coast <strong>and</strong> <strong>the</strong> interior in winter . Winters are cold in <strong>the</strong><br />

east <strong>and</strong> interior, but relatively warm on <strong>the</strong> south coast. Average temperatures<br />

in January <strong>and</strong> February are around 0°C in <strong>the</strong> east, 5° to 7°C on <strong>the</strong> north <strong>and</strong><br />

west coasts, <strong>and</strong> 8° to 12°C on <strong>the</strong> south coast.<br />

Heavy rainfall is general on mountains facing <strong>the</strong> sea. Towards <strong>the</strong> interior,<br />

rainfall decreases. Rains begin in autumn <strong>and</strong> continue until late spring on <strong>the</strong><br />

Marmara, Mediterranean <strong>and</strong> Aegean coasts. In <strong>the</strong> interior <strong>and</strong> sou<strong>the</strong>astern<br />

Anatolia, rainfall is mostly in spring.<br />

Ruminant livestock consist <strong>of</strong> 11 million cattle , 29.4 million sheep <strong>and</strong><br />

8 060 000 goats . Cattle numbers have not changed in <strong>the</strong> last 30 years, while<br />

sheep, goat <strong>and</strong> buffalo numbers decreased steadily. Most livestock are still<br />

under traditional management relying on extensive grazing . Farms are small<br />

<strong>and</strong> fragmented, with 85 percent under 10 ha.<br />

About 71 percent <strong>of</strong> all pure breeds are in <strong>the</strong> central-north, Aegean,<br />

Marmara <strong>and</strong> central-south regions; elsewhere extensive stock rearing is general,<br />

with local sheep <strong>and</strong> cattle breeds. The Mediterranean region is <strong>the</strong> least<br />

developed for livestock, but has 25 percent <strong>of</strong> <strong>the</strong> goats .<br />

At <strong>the</strong> beginning <strong>of</strong> <strong>the</strong> twentieth century <strong>the</strong> population <strong>of</strong> Turkey was<br />

12 million, livestock numbers were low <strong>and</strong> <strong>the</strong>re was no serious pasture management<br />

problem. After <strong>the</strong> First <strong>World</strong> War, <strong>the</strong>re were 440 000 km 2 <strong>of</strong> natural<br />

grazing <strong>and</strong> about 20 million livestock units. After <strong>the</strong> Second <strong>World</strong> War,<br />

animal numbers remained <strong>the</strong> same, but grazing was reduced to 430 000 km 2 .<br />

Since <strong>the</strong>n <strong>the</strong>re has been a sharp increase in animal numbers <strong>and</strong> decrease in<br />

pasture. The trend continues; nowadays <strong>the</strong> number <strong>of</strong> animals grazing on<br />

Turkey’s pastures is three to four times <strong>the</strong>ir carrying capacity (Figure 11.1<br />

shows <strong>the</strong> changes in pasture area in Turkey).<br />

The most productive pastures are in <strong>the</strong> east <strong>of</strong> <strong>the</strong> Black Sea region, where<br />

herders move in transhumance between lowl<strong>and</strong> <strong>and</strong> alpine grassl<strong>and</strong>s. East<br />

Anatolia has 37 percent <strong>of</strong> <strong>the</strong> pasture , grazing pressure is lower, so pasture<br />

condition is better; transhumance is also practiced here. Sou<strong>the</strong>ast Anatolia<br />

is one <strong>of</strong> <strong>the</strong> most heavily grazed zones ; pastures dry out at <strong>the</strong> end <strong>of</strong> June;<br />

some <strong>of</strong> <strong>the</strong> livestock are moved to eastern Anatolia or to high mountains <strong>of</strong><br />

<strong>the</strong> sou<strong>the</strong>astern Taurus. In Mediterranean <strong>and</strong> Aegean Regions, <strong>the</strong> principal<br />

vegetation above 500 m is maquis , which is unsuitable for cattle . About a quarter<br />

<strong>of</strong> <strong>the</strong> goat population is in this region <strong>and</strong> are taken to higher elevations


MAGNUS HALLING<br />

O<strong>the</strong>r grassl<strong>and</strong>s 457<br />

Million hectares <strong>and</strong> percentages<br />

60<br />

50<br />

40<br />

30<br />

20<br />

10<br />

0<br />

1940 1950 1960<br />

Years<br />

1980 2000<br />

Figure 11.1<br />

Pasture area changes over time in Turkey .<br />

Plate 11.30<br />

Alfalfa (Medicago sativa ).<br />

Million hectares Percent <strong>of</strong> all l<strong>and</strong><br />

for 7–8 months. Marmara is an area <strong>of</strong> intensive animal husb<strong>and</strong>ry. Central<br />

Anatolia has <strong>the</strong> least productive grazing l<strong>and</strong>s ; annual rainfall is between<br />

250–500 mm; pastures dry out very quickly; grazing pressure is high; <strong>and</strong> pastures<br />

are steppic. Central Anatolia is a high plateau with few high mountains,<br />

so livestock graze fallows <strong>and</strong> stubble in summer .


458<br />

Plate 11.31<br />

Sainfoin (Onobrychis viciifolia ).<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

The l<strong>and</strong> tenure system is a major constraint to grassl<strong>and</strong> management .<br />

Common areas are grazed free <strong>of</strong> charge, so are not managed properly.<br />

Boundaries <strong>of</strong> pastures are not clearly determined nor assigned to village<br />

communities .<br />

The number <strong>of</strong> people in agriculture declined to 34 percent in 2000. Young<br />

rural people spend up to ten months annually in cities. Labour requirements<br />

are met by hiring shepherds or modifying <strong>the</strong> system to more labour-effective<br />

strategies. As <strong>the</strong> rural population declines, specialist animal producers are<br />

increasing <strong>the</strong>ir herd sizes. Rotational grazing is ignored because it requires<br />

extra investment. Herdsmen are well aware <strong>of</strong> its benefits, but continue to<br />

graze all parts <strong>of</strong> <strong>the</strong> grassl<strong>and</strong>s from early spring until winter .<br />

Reduction <strong>of</strong> fallow has been a major government concern over <strong>the</strong> past<br />

25 years, <strong>and</strong> has given fruitful results in increasing forage <strong>and</strong> grain legume<br />

production. The area <strong>of</strong> fallow was 4 900 000 ha in 1998, compared with<br />

8 400 000 ha in 1979.<br />

S.G. REYNOLDS


O<strong>the</strong>r grassl<strong>and</strong>s 459<br />

Alfalfa (Medicago sativa ) has long been grown in Turkey , which is one <strong>of</strong> <strong>the</strong><br />

centres <strong>of</strong> genetic diversity <strong>of</strong> <strong>the</strong> crop. There are alfalfa fields up to 50 years<br />

old in <strong>the</strong> east. “Kayseri” – <strong>the</strong> oldest registered <strong>and</strong> most widely used cultivar<br />

– gives 3-4 cuts under irrigation. Average hay yield <strong>of</strong> alfalfa is about 7 t/ha.<br />

It is <strong>the</strong> major fodder crop <strong>of</strong> <strong>the</strong> irrigated areas <strong>and</strong> is also cultivated under<br />

rainfed conditions in <strong>the</strong> east <strong>of</strong> <strong>the</strong> country. Alfalfa (Plate 11.30) is replaced by<br />

sainfoin , Onobrychis viciifolia (Plate 11.31), under rainfed conditions, where it<br />

is more productive <strong>and</strong> seed production is much easier.<br />

This chapter has attempted to cover some important grassl<strong>and</strong> areas to complement<br />

<strong>the</strong> main chapters. For more details, reference should be made to <strong>the</strong><br />

FAO Web site or <strong>the</strong> CD referred to in <strong>the</strong> opening paragraph.<br />

BIBLIOGRAPHY<br />

Al-Jaloudy, M.A. 2001. Pasture Pr<strong>of</strong>ile for Jordan . See: http://www.fao.org/ag/<br />

AGP/AGPC/doc/Counpr<strong>of</strong>/Jordan.htm<br />

Aw-Hassan, A., Iñguez, L., Musaeva, M., Suleimenov, M., Khusanov, R.,<br />

Moldashev, B., Ajibekov, A. & Yakshilikov, Y. 2004. Economic transition<br />

impact on livestock production in Central Asia : Survey results. In: Ryan, Vlek<br />

& Paroda, 2004, q.v.<br />

Berkat, O. & M. Tazi. 2004. Pasture Pr<strong>of</strong>ile for Morocco . See: http://www.fao.<br />

org/ag/AGP/AGPC/doc/Counpr<strong>of</strong>/Morocco/morocco.htm<br />

Bosser, J. 1969. Graminées des pâturages et de cultures à Madagascar . Mémoires<br />

ORSTOM, No. 35. 440 p.<br />

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<strong>the</strong> South Africa n Veterinary Association, 54(3): 165–170.<br />

Chaouki, A.F., Chakroun, M., Allagui, M.B. & Sbeita, A. 2004. Fodder oats in <strong>the</strong><br />

Maghreb. pp. 53–91, in: Suttie <strong>and</strong> Reynolds, 2004, q.v.<br />

Coulibally, A. 2003. Pasture Pr<strong>of</strong>ile for Mali . See: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Counpr<strong>of</strong>/Mali/mali.htm<br />

Dabadghao, P.M. & Shankarnarayan, K.A. 1973. The Grass Cover <strong>of</strong> India . New<br />

Delhi, India: ICAR.<br />

Dost, M. 1998. Pasture Pr<strong>of</strong>ile for Pakistan . See: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Counpr<strong>of</strong>/Pakistan.htm<br />

Dost, M. 2003. Fodder production for peri-urban dairies in Pakistan . Available<br />

from: http://www.fao.org/ag/AGP/AGPC/doc/pasture /dost/fodderdost.htm<br />

FAOSTAT. 2004. Data downloaded from < http://www.fao.org/waicent/portal/<br />

statistics_en.asp ><br />

Fitzherbert, A.R. 2000. Pastoral Pr<strong>of</strong>ile for Kyrgyzstan . See: http://www.fao.org/<br />

ag/AGP/AGPC/doc/Counpr<strong>of</strong>/kyrgi.htm<br />

Garbulsky, M.F. & Deregibus, V.A. 2004. Pasture Pr<strong>of</strong>ile for Argentina . See:<br />

http://www.fao.org/ag/AGP/AGPC/doc/Counpr<strong>of</strong>/Argentina/argrentina.htm<br />

Geesing, D. & Djibo, H. 2001. Pasture Pr<strong>of</strong>ile for Niger . See: http://www.fao.<br />

org/ag/AGP/AGPC/doc/Counpr<strong>of</strong>/niger.htm


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Gintzburger, G. 2004. Agriculture <strong>and</strong> Rangel<strong>and</strong>s in Middle Asian Countries.<br />

In: Ryan, Vlek & Paroda, 2004, q.v.<br />

Gintzburger, G., Toderich, K.N., Mardonov, B.K. & Mahmudov, M.M. 2003.<br />

Rangel<strong>and</strong>s <strong>of</strong> <strong>the</strong> Arid <strong>and</strong> Semi-Arid Zones in Uzbekistan . Published jointly<br />

by CIRAD, France, <strong>and</strong> ICARDA, Syria . 426 p.<br />

Hu, Z. & Zhang, D. 2003a. Pasture Pr<strong>of</strong>ile for China . See: http://www.fao.org/<br />

ag/AGP/AGPC/doc/Counpr<strong>of</strong>/china/china1.htm<br />

Hu, Z. & Zhang, D. 2003b. China ’s pasture resources . pp. 81–113, in: Suttie &<br />

Reynolds, 2003, q.v.<br />

Iñguez, L., Sulemenov, M., Yusopov, S., Ajibekov, A., Kineev, M., Kheremov, S.,<br />

Abdusattarov, A. & Thomas, D. 2004. Livestock production in Central Asia :<br />

constraints, <strong>and</strong> research opportunities. In: Ryan, Vlek & Paroda, 2004, q.v.<br />

Kagone, H. 2002. Pasture Pr<strong>of</strong>ile for Burkina Faso . See: http://www.fao.org/ag/<br />

AGP/AGPC/doc/Counpr<strong>of</strong>/BurkinaFeng.htm<br />

Karagöz, A. 2001. Pasture Pr<strong>of</strong>ile for Turkey . See: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Counpr<strong>of</strong>/Turkey.htm<br />

Kayouli, C. 2000. Pasture Pr<strong>of</strong>ile for Tunisia . See: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Counpr<strong>of</strong>/TUNIS.htm<br />

Makhmudovich, M. 2001. Pasture Pr<strong>of</strong>ile for Uzbekistan . See: http://www.fao.<br />

org/ag/AGP/AGPC/doc/Counpr<strong>of</strong>/uzbekistan.htm<br />

Masri, A. 2001. Pasture Pr<strong>of</strong>ile for Syria . See: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Counpr<strong>of</strong>/syria.htm<br />

Misri, B.K. 1999. Pasture Pr<strong>of</strong>ile for India . See: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Counpr<strong>of</strong>/India.htm<br />

Nedjraoui, D. 2001. Pasture Pr<strong>of</strong>ile for Algeria . See: http://www.fao.org/ag/<br />

AGP/AGPC/doc/Counpr<strong>of</strong>/Algeria.htm<br />

Nyima, T. 2003. Pastoral systems , change <strong>and</strong> <strong>the</strong> future <strong>of</strong> <strong>the</strong> grazing l<strong>and</strong>s in<br />

Tibet . pp. 151–187, in: Suttie & Reynolds, 2003, q.v.<br />

Oppong-Anane, K. 2001. Pasture Pr<strong>of</strong>ile for Ghana . See: http://www.fao.org/ag/<br />

AGP/AGPC/doc/Counpr<strong>of</strong>/Ghana.htm<br />

Pariyar, D. 1999. Pasture Pr<strong>of</strong>ile for Nepal . See: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Counpr<strong>of</strong>/Nepal.htm<br />

Rasambainarivo, J.H. & Ranaivoarivelo, N. 2003. Pasture Pr<strong>of</strong>ile for Madagascar .<br />

See: http://www.fao.org/ag/AGP/AGPC/doc/Counpr<strong>of</strong>/Madagascar/madagascareng.htm<br />

Reynolds, S.G., Suttie, J.M. & Staberg, P. 2005. Country Pasture Pr<strong>of</strong>iles, CD-<br />

ROM, FAO, Rome, Italy.<br />

Riveros, F. 2002. The Gran Chaco . Available at: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Bulletin/GranChaco.htm<br />

Ruijun, L. 2003a. Alpine rangel<strong>and</strong> ecosystems <strong>and</strong> <strong>the</strong>ir management in <strong>the</strong><br />

Qinghai Tibetan plateau. Chapter 13. In: Wiener, Jianlin & Ruijun, 2003, q.v.<br />

Ruijun, L. 2003b. Yak nutrition – a scientific basis. In: Wiener, Jianlin & Ruijun,<br />

2003, q.v.


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Ryan, J., Vlek, P. & Paroda, R. 2004. Agriculture in Central Asia : Research <strong>and</strong><br />

Development. Proceedings <strong>of</strong> a Symposium held at <strong>the</strong> American Society for<br />

Agronomy Annual Meetings, 10–14 November 2002. ICARDA: Aleppo, Syria .<br />

Suttie, J.M. & Reynolds, S.G. (eds). 2003. Transhumant Grazing Systems in<br />

Temperate Asia. FAO Plant Production <strong>and</strong> Protection Series, No. 31. 331 p.<br />

Suttie, J.M. & Reynolds, S.G. (eds). 2004. Fodder oats: a world overview. FAO<br />

Plant Production <strong>and</strong> Protection Series, No. 33. 251 p.<br />

Thieme, O. 2000. Pasture Pr<strong>of</strong>ile for Afghanistan . See: http://www.fao.org/ag/<br />

AGP/AGPC/doc/Counpr<strong>of</strong>/AFGAN.htm<br />

Vera, R.R. 2003 Pasture Pr<strong>of</strong>ile for Venezuela . See: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Counpr<strong>of</strong>/venezuela.htm<br />

Wang, W.L. 2003. Studies on traditional transhumance <strong>and</strong> a system where herders<br />

return to settled winter bases in Burjin county, Altay prefecture, Xinjiang ,<br />

China .. In: Suttie & Reynolds, 2003, q.v.<br />

Wangdi, K. 2002. Pasture Pr<strong>of</strong>ile for Bhutan . See: http://www.fao.org/ag/AGP/<br />

AGPC/doc/Counpr<strong>of</strong>/Bhutan.htm<br />

Wickens, G.E. 1997. Has <strong>the</strong> Sahel a future? Journal <strong>of</strong> Arid Environments,<br />

37: 649–663.<br />

Wiener, G., Jianlin, H. & Ruijun, L. 2003. The yak. 2nd edition. FAO/<br />

RAOP publication 2003/06. FAO Regional Office for Asia <strong>and</strong> <strong>the</strong> Pacific,<br />

Bangkok, Thail<strong>and</strong>. See: http://www.fao.org/documents/show_cdr.asp?url_<br />

file=/DOCREP/006/AD347E/AD347E00.htm


Grassl<strong>and</strong> perspectives 463<br />

Chapter 12<br />

Grassl<strong>and</strong> perspectives<br />

INTRODUCTION<br />

Most high quality grassl<strong>and</strong> is now converted to crops , mixed farming or<br />

artificial pastures, so extensive grazing is a way <strong>of</strong> making economic use <strong>of</strong><br />

grassl<strong>and</strong> that is not suited to more intensive agricultural enterprises. It follows<br />

that investment in such grassl<strong>and</strong>s should be kept to <strong>the</strong> minimum necessary<br />

for <strong>the</strong>ir pr<strong>of</strong>itable <strong>and</strong> sustainable exploitation by livestock, whe<strong>the</strong>r <strong>the</strong>y be<br />

managed commercially or traditionally.<br />

GRASSLAND SYSTEMS<br />

The main chapters have reviewed a wide <strong>and</strong> representative variety <strong>of</strong> grassl<strong>and</strong>s<br />

in a range <strong>of</strong> climates, from cold continental to <strong>the</strong> Equator. Five – eastern<br />

Africa , sou<strong>the</strong>rn Africa, Mongolia , <strong>the</strong> Tibetan Steppe <strong>and</strong> <strong>the</strong> Russian Steppe –<br />

are ancient grazing l<strong>and</strong>s . The remaining four have been settled <strong>and</strong> stocked<br />

in relatively recent times: Patagonia , <strong>the</strong> Campos , central North America <strong>and</strong><br />

Australia . Some are used by traditional, partly subsistence systems ; eastern<br />

Africa <strong>and</strong> part <strong>of</strong> sou<strong>the</strong>rn Africa are managed traditionally; <strong>and</strong> Mongolia<br />

has reverted to subsistence herding . Patagonia, <strong>the</strong> Campos, <strong>the</strong> Great Plains<br />

<strong>and</strong> Australia are managed commercially. Three areas, Mongolia, <strong>the</strong> Tibetan<br />

Plateau <strong>and</strong> Russia , have undergone collectivization <strong>and</strong> decollectivization<br />

during <strong>the</strong> past century. Most <strong>of</strong> <strong>the</strong> systems described have some interaction<br />

with crop production <strong>and</strong> fodder production or agropastoralism, for, at<br />

farm or regional level, grazing l<strong>and</strong>s <strong>and</strong> crop production are <strong>of</strong>ten mutually<br />

dependent, but Mongolia, Tibet Autonomous Region, China <strong>and</strong>, to a lesser<br />

degree, Patagonia are purely pastoral .<br />

Of <strong>the</strong> systems described briefly in Chapter 11, West Africa <strong>and</strong> Madagascar<br />

are tropical , traditional systems; North Africa , <strong>the</strong> Syrian Arab Republic <strong>and</strong><br />

Jordan are subtropical semi -arid areas where transhumant herding had been<br />

traditional but where breakdown <strong>of</strong> traditional authority <strong>and</strong> grazing systems ,<br />

aggravated by sedentarization, cheap cereals <strong>and</strong> motor transport, has led to very<br />

severe pasture degradation . The South American systems – <strong>the</strong> Gran Chaco , <strong>the</strong><br />

Pampas <strong>and</strong> <strong>the</strong> Llanos – are commercial systems <strong>of</strong> relatively recent settlement.<br />

Central Asia <strong>and</strong> China (at least its nor<strong>the</strong>rn <strong>and</strong> western grazing l<strong>and</strong>s ), which<br />

are contiguous, were areas <strong>of</strong> transhumant herding, but systems have been disturbed,<br />

first by collectivization <strong>and</strong> <strong>the</strong>n by decollectivization, which has followed<br />

very different paths in <strong>the</strong> two areas. The Hindu Kush-Himalaya zone,<br />

which has both sedentary <strong>and</strong> transhumant systems on <strong>the</strong> same grassl<strong>and</strong>s, is<br />

under severe stress due to population increase. Turkey was a pastoral country,<br />

but much <strong>of</strong> <strong>the</strong> grassl<strong>and</strong>s have been developed for increasingly commercial


464<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

crop production, without a concomitant reduction in livestock numbers.<br />

THE STATE OF THE GRASSLANDS<br />

The condition <strong>of</strong> <strong>the</strong> world’s grassl<strong>and</strong>s is very varied but, in many cases, it is<br />

far from satisfactory. Long-term historical data on pasture is scarce in most<br />

areas, so <strong>the</strong> degree <strong>of</strong> change or degradation has to be inferred from present<br />

condition.<br />

In all but <strong>the</strong> coldest <strong>and</strong> driest zones , large areas <strong>of</strong> <strong>the</strong> better l<strong>and</strong> have<br />

been cleared for crops , leaving <strong>the</strong> poorer pasture to extensive stock rearing; in<br />

traditional areas <strong>of</strong> subsistence farming this is due to increasing human population<br />

among agricultural groups; elsewhere expansion <strong>of</strong> crops into marginal<br />

l<strong>and</strong>s has been in <strong>the</strong> hope <strong>of</strong> pr<strong>of</strong>it, which has <strong>of</strong>ten not been realized. Most<br />

<strong>of</strong> <strong>the</strong> world’s grassl<strong>and</strong>s are on poor quality l<strong>and</strong>: according to Buringh <strong>and</strong><br />

Dudal (1987), only about one-sixth <strong>of</strong> <strong>the</strong> world’s grassl<strong>and</strong>s are on high <strong>and</strong><br />

medium category l<strong>and</strong>, while <strong>the</strong> remaining five-sixths are on low to zero<br />

classes, so <strong>the</strong> potential for fur<strong>the</strong>r clearing <strong>of</strong> grassl<strong>and</strong> for sustainable cropping<br />

seems low.<br />

Cultivation <strong>of</strong> grassl<strong>and</strong> has led to problems <strong>of</strong> access to water for stock <strong>and</strong><br />

wildlife , loss <strong>of</strong> lean season grazing , obstruction <strong>of</strong> migration routes <strong>and</strong> fragmentation<br />

<strong>of</strong> wildlife habitat . Increasing population pressure <strong>and</strong> poverty, especially<br />

in <strong>the</strong> savannah zones <strong>of</strong> Africa, has driven subsistence cultivators fur<strong>the</strong>r<br />

into <strong>the</strong> dryl<strong>and</strong>s; it is usually <strong>the</strong> best soils <strong>and</strong> areas along watercourses <strong>and</strong><br />

o<strong>the</strong>r water sources that are developed first; <strong>the</strong>se have usually been lean-season<br />

or emergency grazing l<strong>and</strong>s <strong>of</strong> pastoral groups <strong>and</strong> <strong>the</strong>ir clearing can upset grazing<br />

systems , <strong>and</strong> leads to degradation <strong>of</strong> <strong>the</strong> remaining grassl<strong>and</strong>.<br />

Crop production is not <strong>the</strong> sole invasive use <strong>of</strong> grassl<strong>and</strong>s: forestation can<br />

bar migration routes as can fencing for game exclusion (or protection); declaration<br />

<strong>of</strong> game reserves in pastoral areas can affect herding , <strong>and</strong> mining <strong>and</strong> oil<br />

extraction also cause damage.<br />

In eastern Africa , pastoral systems are contracting through <strong>the</strong> expansion <strong>of</strong><br />

cropping, <strong>and</strong> grassl<strong>and</strong> is increasingly being integrated into farming systems.<br />

National l<strong>and</strong> tenure legislation is not related to traditional grazing rights <strong>and</strong><br />

puts pastoralism at a disadvantage compared with crops . The pastoral vegetation<br />

, however, is resilient, <strong>and</strong> recovers well after drought .<br />

In South Africa also, much <strong>of</strong> <strong>the</strong> better grassl<strong>and</strong> in commercial areas has<br />

been cleared for annual cropping, <strong>and</strong> in communal areas <strong>the</strong> better watered<br />

l<strong>and</strong> has been converted into a patchwork <strong>of</strong> crops <strong>and</strong> thicket. The grassl<strong>and</strong><br />

vegetation is generally resilient, although <strong>the</strong>re is some degradation in <strong>the</strong> driest<br />

areas. Bush encroachment is a problem in many vegetation types . Low returns<br />

from extensive commercial stock rearing in dry areas is leading to depopulation,<br />

<strong>and</strong> in some cases enterprises are changing to game ranching.<br />

The human population <strong>of</strong> West Africa has increased greatly so <strong>the</strong> grassl<strong>and</strong><br />

has decreased <strong>and</strong> nearly all <strong>the</strong> cultivable grassl<strong>and</strong> in <strong>the</strong> better watered areas,


Grassl<strong>and</strong> perspectives 465<br />

as well as vast tracts <strong>of</strong> semi -arid marginal l<strong>and</strong>, are now under subsistence<br />

crops . Tribal authority, which had regulated grazing practice, broke down in<br />

many countries once <strong>the</strong>y gained <strong>the</strong>ir independence, leaving grassl<strong>and</strong> as an<br />

open -access resource.<br />

In North Africa , human population has increased greatly <strong>and</strong> traditional<br />

authorities <strong>and</strong> grazing rights have broken down. Much semi -arid l<strong>and</strong> has<br />

been ploughed for unsustainable annual cropping. Livestock numbers have<br />

risen <strong>and</strong> more can be carried through <strong>the</strong> lean season through <strong>the</strong> use <strong>of</strong><br />

purchased – at one time subsidized – cereals <strong>and</strong> concentrates. Transhumance<br />

cycles are mostly greatly curtailed or herds have become sedentary. Uprooting<br />

<strong>of</strong> shrubs for fuel causes severe damage. All <strong>the</strong> grazing l<strong>and</strong> is overstocked <strong>and</strong><br />

degraded, <strong>of</strong>ten seriously so.<br />

The situation in Patagonia contrasts sharply with that <strong>of</strong> East <strong>and</strong> South<br />

Africa . In a little over a century from <strong>the</strong> introduction <strong>of</strong> sheep ranching, <strong>the</strong><br />

vegetation has been severely modified by overgrazing, mainly in <strong>the</strong> past fifty<br />

years. Ranching is on private l<strong>and</strong> with vast paddocks <strong>and</strong> little grazing control<br />

within <strong>the</strong>m. Guidelines for pasture management were only developed in <strong>the</strong><br />

1980s <strong>and</strong> have yet to make a strong impact.<br />

The Campos is relatively well watered, <strong>and</strong> all stock rearing is commercial.<br />

Pasture technology is well developed. Introduced forages are used to palliate<br />

seasonal fluctuations in fodder availability <strong>and</strong> quality, ei<strong>the</strong>r as sown pasture<br />

or by over-seeding. The value <strong>of</strong> properly managed native pasture is increasingly<br />

appreciated. <strong>Grassl<strong>and</strong>s</strong> are generally in good condition .<br />

The well drained parts <strong>of</strong> <strong>the</strong> Pampas are now farml<strong>and</strong>, where field crops<br />

are <strong>of</strong>ten in rotation with sown pasture . The flooding pampa s is still exploited<br />

as grazing l<strong>and</strong> , producing stock for fattening elsewhere.<br />

Many <strong>of</strong> <strong>the</strong> pastures <strong>of</strong> <strong>the</strong> Gran Chaco deteriorated seriously during<br />

<strong>the</strong> twentieth century; before 1920 it had been almost unmanaged extensive<br />

grazing . Provision <strong>of</strong> watering points allowed far more <strong>of</strong> <strong>the</strong> vegetation to be<br />

consumed, leaving little to carry fire . This, toge<strong>the</strong>r with uncontrolled felling<br />

<strong>of</strong> forest led to invasion by undesirable thorny vegetation. Bush encroachment<br />

brought about by overstocking <strong>and</strong> lack <strong>of</strong> grazing management is very serious,<br />

leading to erosion, loss <strong>of</strong> wildlife habitat , <strong>and</strong> greatly reduced livestock<br />

production. The economics <strong>of</strong> herbicides <strong>and</strong> mechanical clearing are not clear.<br />

In most subtropical areas <strong>of</strong> extensive grazing, <strong>the</strong> strategic use <strong>of</strong> pasture resting<br />

<strong>and</strong> controlled fire is <strong>the</strong> only economic way <strong>of</strong> keeping bush in check.<br />

In <strong>the</strong> grassl<strong>and</strong>s <strong>of</strong> Central North America <strong>the</strong> better-watered tall-grass<br />

prairie is now mostly under crops . Vast areas <strong>of</strong> drier l<strong>and</strong> have also been<br />

cleared for cropping; much was marginal for crop production <strong>and</strong> suffers from<br />

periodic drought , which led to <strong>the</strong> “dust bowl” <strong>of</strong> <strong>the</strong> 1930s. Much <strong>of</strong> <strong>the</strong><br />

marginal cropl<strong>and</strong> has been reseeded or forested, with considerable government<br />

support. Low returns from farming <strong>and</strong> <strong>the</strong> isolation <strong>of</strong> many rural communities<br />

is resulting in urban drift. The modern trend is towards larger-scale


466<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

l<strong>and</strong>scape management , now that information collection <strong>and</strong> manipulation<br />

technology are available.<br />

Central Asia was traditional transhumant herding country until <strong>the</strong> early<br />

twentieth century but, with collectivization, mobile herding ceased in <strong>the</strong><br />

1930s. Fine-wool sheep were encouraged during <strong>the</strong> soviet era but <strong>the</strong>se are<br />

much less hardy than local breeds. Later <strong>the</strong> usefulness <strong>of</strong> seasonal movement<br />

was recognized <strong>and</strong> l<strong>and</strong> in different seasonal zones was allocated to cooperatives<br />

<strong>and</strong> state farms . Heavy grazing <strong>and</strong> firewood collection have seriously<br />

reduced vegetation cover <strong>and</strong> <strong>the</strong> natural grazing has become degraded, with a<br />

loss <strong>of</strong> productivity <strong>and</strong> desertification; destruction <strong>of</strong> forests <strong>and</strong> shrubs has<br />

led to wind erosion. The impact <strong>of</strong> decollectivization on livestock production<br />

systems , grassl<strong>and</strong> management <strong>and</strong> herder’s livelihoods has been dramatic <strong>and</strong><br />

negative. Large agro-food complexes were dismantled <strong>and</strong> cooperative farms<br />

were privatized. Marketing systems collapsed <strong>and</strong> many traditional markets<br />

were lost. There has been a sharp decline in stock numbers in some <strong>of</strong> <strong>the</strong><br />

countries. The reforms led to a massive shift from collective to household<br />

herds; <strong>of</strong>ten household stock numbers are too few to warrant independent<br />

herding <strong>and</strong> communal or family herding has not yet developed; this <strong>of</strong>ten<br />

leads to stock remaining, unsupervised, close to homesteads: nearby pastures<br />

are overgrazed while distant ones are hardly used.<br />

Mongolia is almost entirely pastoral ; small areas that were cleared for<br />

cropping during <strong>the</strong> collective period have mostly been ab<strong>and</strong>oned for<br />

economic reasons. Decollectivization distributed <strong>the</strong> livestock to cooperative<br />

members without clarifying grazing rights , which led to considerable confusion<br />

<strong>and</strong> lack <strong>of</strong> overall management <strong>of</strong> <strong>the</strong> pastoral resource. The people returned<br />

to mobile herding – as hardy local breeds had been maintained throughout<br />

Plate 12.1<br />

Pastoral scene near Arkhangai, Mongolia .<br />

S.G. REYNOLDS


ALICE CARLONI<br />

ALICE CARLONI<br />

Grassl<strong>and</strong> perspectives 467<br />

Plate 12.2<br />

Watering camels in Mongolia .<br />

Plate 12.3<br />

Mongolia , l<strong>and</strong> largely used by wildlife , with salt lake in <strong>the</strong> distance.<br />

<strong>the</strong> collective period. As rural infrastructure deteriorated <strong>the</strong>re has been<br />

considerable migration <strong>of</strong> people <strong>and</strong> <strong>the</strong>ir herds towards <strong>the</strong> central provinces,<br />

especially from <strong>the</strong> west. There is localized overgrazing near main roads <strong>and</strong><br />

settlements, while more distant pastures are <strong>of</strong>ten underutilized. Overall pasture<br />

condition is satisfactory (Plate 12.1) <strong>and</strong> <strong>the</strong> vegetation resilient, even after <strong>the</strong><br />

consecutive droughts <strong>of</strong> recent years. Pumped water supplies (Plate 12.2) have


468<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

fallen into disrepair over large areas so <strong>the</strong>se tracts are less used by herders, to<br />

<strong>the</strong> benefit <strong>of</strong> wildlife (Plate 12.3).<br />

The livestock industry in China , including extensive grazing , was collectivized<br />

in <strong>the</strong> 1950s, but herds were still managed in transhumant systems . After<br />

decollectivization, livestock was allocated to families <strong>and</strong> grazing l<strong>and</strong> has also<br />

been distributed according to <strong>the</strong> 1985 law. The allocation <strong>of</strong> relatively small<br />

areas <strong>of</strong> semi -arid grassl<strong>and</strong> to families has greatly reduced herd mobility . This<br />

may have been a contributing factor in <strong>the</strong> serious deterioration <strong>of</strong> <strong>the</strong> country’s<br />

grazing l<strong>and</strong>s. Currently, 90 percent <strong>of</strong> grassl<strong>and</strong> shows signs <strong>of</strong> deterioration,<br />

<strong>of</strong> which moderately degraded grassl<strong>and</strong> is 32.5 percent. The government<br />

is taking vigorous measures to deal with grassl<strong>and</strong> degradation through its<br />

Planning Programme <strong>of</strong> National Ecological Environment Construction <strong>and</strong><br />

Outline <strong>of</strong> Fifteenth Ten-Year Plan. Like elsewhere in China, Tibet ’s grassl<strong>and</strong>s<br />

suffered from a very sharp increase in stock numbers at <strong>the</strong> onset <strong>of</strong> collectivization<br />

in <strong>the</strong> mid-twentieth century. Numbers stabilized, but pasture condition<br />

is mediocre. The grassl<strong>and</strong>s have been allocated to families in relatively small<br />

units <strong>and</strong> it remains to be seen how effective management will be <strong>of</strong> small areas<br />

<strong>of</strong> semi-arid risk -prone grassl<strong>and</strong>.<br />

In <strong>the</strong> Hindu Kush-Himalaya region <strong>the</strong>re is extreme pressure on such<br />

extensive grazing l<strong>and</strong>s as remain. The alpine pastures do get a seasonal rest<br />

during snow cover, but elsewhere <strong>the</strong>re is constant grazing (except on seasonally<br />

closed hay l<strong>and</strong>) from sedentary stock owners, <strong>and</strong> periodic grazing by<br />

transhumants. Because <strong>of</strong> <strong>the</strong> very high human population, all possible l<strong>and</strong> has<br />

been cleared for crop production.<br />

The situation in <strong>the</strong> Near East is similar to that in North Africa . Breakdown<br />

<strong>of</strong> tribal authority led to <strong>the</strong> disruption <strong>of</strong> traditional grazing rights <strong>and</strong> migration<br />

patterns. Purchased feed <strong>and</strong> availability <strong>of</strong> transport <strong>and</strong> water supplies<br />

enabled much larger numbers <strong>of</strong> stock to be kept through <strong>the</strong> lean season, <strong>and</strong><br />

pastures were no longer rested once surface water supplies ran out. The human<br />

population <strong>and</strong> livestock numbers have multiplied. Much semi -arid pasture has<br />

been ploughed for unproductive cropping. Uprooting <strong>of</strong> bushes for fuel is very<br />

damaging to <strong>the</strong> pastoral vegetation .<br />

Turkey has changed in <strong>the</strong> past century from a mainly pastoral country<br />

to one where crop production is very important. This meant a great reduction<br />

in <strong>the</strong> area <strong>of</strong> grassl<strong>and</strong> , but <strong>the</strong>re was no concomitant reduction in livestock,<br />

which increased in numbers. Later intensification <strong>of</strong> cropping systems<br />

replaced grazed fallow with pulses <strong>and</strong> o<strong>the</strong>r cash crops , fur<strong>the</strong>r reducing<br />

grazing resource s . Turkey’s pastures are now stocked well above <strong>the</strong>ir carrying<br />

capacity . The l<strong>and</strong> tenure system is a major constraint to grassl<strong>and</strong> management<br />

. Common areas are grazed free <strong>of</strong> charge, so are not managed properly.<br />

Boundaries <strong>of</strong> pastures are not clearly determined nor assigned to village communities<br />

. Labour is becoming scarce in pastoral areas as people move to towns,<br />

so flocks are not well herded.


Grassl<strong>and</strong> perspectives 469<br />

The grassl<strong>and</strong>s <strong>of</strong> <strong>the</strong> Russian steppe were increasingly cleared for crops<br />

during <strong>the</strong> twentieth century; initially crops rotated with tumble-down fallow ,<br />

but later <strong>the</strong> cropping cycle became more intensive. Meadows in floodplains<br />

<strong>and</strong> depressions remained an important source <strong>of</strong> hay . Stock were mainly<br />

housed during <strong>the</strong> collective period. The system has yet to stabilize following<br />

decollectivization, but herds are fragmented <strong>and</strong> are left to graze at will, leading<br />

to overgrazing close to homesteads while distant pastures are neglected.<br />

The studies concentrate on domestic livestock, but most mention <strong>the</strong> o<strong>the</strong>r<br />

grazers, which are important in natural grassl<strong>and</strong> ecosystems – ranging from<br />

large ruminants <strong>and</strong> marsupials to <strong>the</strong> rodents <strong>and</strong> lagomorphs that are major<br />

herbivores in many cool, semi -arid situations. Wildlife plays an important role<br />

in maintaining some grassl<strong>and</strong>s, such as in eastern Africa , where <strong>the</strong> presence<br />

<strong>of</strong> elephants <strong>and</strong> fire are important.<br />

GRASSLAND DEVELOPMENT , IMPROVEMENT AND REHABILITATION<br />

Most grassl<strong>and</strong>s, whe<strong>the</strong>r commercially or traditionally managed, have required<br />

some development inputs to make stock-rearing possible or more efficient. All<br />

grazing resource s have to be taken into account <strong>and</strong> <strong>the</strong>se cover much more<br />

than <strong>the</strong> herbaceous stratum.<br />

Grassl<strong>and</strong> resources<br />

Water<br />

Water is <strong>the</strong> major determining factor in stock management in most extensive<br />

grazing l<strong>and</strong>s ; in areas dependent on seasonal surface water, stock must move out<br />

once sources have dried. Improvement <strong>of</strong> water supply by creating water points<br />

or improving existing ones, <strong>and</strong> clearing <strong>of</strong> undesirable vegetation to allow free<br />

access for stock <strong>and</strong> better grass growth, are common to both systems , <strong>and</strong><br />

provision <strong>of</strong> minerals or traditional salt licks is frequent. Water availability is a<br />

factor in determining many migration patterns in mobile systems. In both East<br />

<strong>and</strong> West Africa , traditional rules govern pastoral water use, <strong>and</strong> in very dry<br />

areas water is a more important resource than is grazing. In areas with very cold<br />

winters, as noted in <strong>the</strong> Mongolia study, surface water freezes; wells provide<br />

water, but, in <strong>the</strong>ir absence, herders may have to extract water from below ice,<br />

melt snow or have stock eat snow to find water – in severe winter wea<strong>the</strong>r<br />

events, dehydration may be as damaging to stock as lack <strong>of</strong> food.<br />

Without water development , stock would be limited to areas close to permanent<br />

sources <strong>of</strong> water throughout <strong>the</strong> dry season , <strong>and</strong> large areas <strong>of</strong> grassl<strong>and</strong><br />

would not be useable for livestock production. From ancient times, stock<br />

watering points have been developed to assure year-round water supply within<br />

a group ’s grazing area or to make grazing l<strong>and</strong> accessible. Access to water is<br />

mentioned as a limiting factor to use <strong>of</strong> some grazing areas in South Africa .<br />

According to <strong>the</strong> South American studies, creation <strong>of</strong> water supplies has made<br />

stock rearing possible in large areas <strong>of</strong> Patagonia <strong>and</strong> <strong>the</strong> Gran Chaco , <strong>and</strong>


470<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>the</strong> importance <strong>of</strong> water development is stressed in Australia . Conversely, <strong>the</strong><br />

breakdown <strong>of</strong> mechanized wells after decollectivization has rendered large<br />

tracts <strong>of</strong> Mongolia inaccessible to domestic livestock. The type <strong>of</strong> livestock<br />

affects <strong>the</strong> frequency <strong>of</strong> water; camels are by far <strong>the</strong> hardiest, whereas most<br />

cattle <strong>and</strong> small stock can only graze for about two days away from water in<br />

hot, dry climates.<br />

Techniques in commercial systems vary according to available water supplies<br />

<strong>and</strong> include: wells <strong>and</strong> boreholes (artesian or pumped); dams <strong>and</strong> ponds;<br />

<strong>and</strong> pumping <strong>and</strong> piping from water bodies. Traditional systems include wells,<br />

which are important in <strong>the</strong> Sahel <strong>and</strong> parts <strong>of</strong> East Africa – those <strong>of</strong> <strong>the</strong> Borana<br />

are particularly well developed. Various methods <strong>of</strong> water harvesting <strong>and</strong> storage<br />

are used in semi -arid areas, including birka (cisterns) in Somalia <strong>and</strong> hafir<br />

(dug tanks) in several Arabic countries.<br />

Creation <strong>of</strong> water points has been widely used, especially in Africa, as a<br />

means <strong>of</strong> making new pastures available to traditional herders, <strong>of</strong>ten with <strong>the</strong><br />

intention <strong>of</strong> reducing pressure on existing grassl<strong>and</strong> . Even if rules for water use<br />

<strong>and</strong> grazing management are drawn up, it is difficult to enforce <strong>the</strong>m, especially<br />

in times <strong>of</strong> stress. Concentration <strong>of</strong> stock around permanent water points is<br />

given as a cause <strong>of</strong> pasture degradation in many <strong>of</strong> <strong>the</strong> studies – in both commercial<br />

<strong>and</strong> traditional systems .<br />

Water is sometimes transported by truck, which is expensive, but if, as is<br />

<strong>the</strong> case in Syria <strong>and</strong> Jordan , <strong>the</strong> pasture is being used as hard st<strong>and</strong>ing for<br />

herds fattened on bought feed, it can be pr<strong>of</strong>itable, whatever <strong>the</strong> effect on any<br />

remaining vegetation .<br />

In a few cases (Mongolia , Russia ) water-spreading is sometimes used to<br />

improve grass growth, especially for haymaking . Irrigation is frequently used,<br />

mainly in commercial systems , to grow fodder, usually for conservation .<br />

Natural salt-licks<br />

Natural salt-lick (deposits or salt springs that animals lick) are valued in<br />

many zones <strong>of</strong> extensive grassl<strong>and</strong> <strong>and</strong> are used by both livestock <strong>and</strong> grazing<br />

wildlife . Herders in, for example, sub-Saharan Africa <strong>and</strong> Mongolia take <strong>the</strong>ir<br />

herds long distances for periodic access to licks. Salt is, <strong>of</strong> course, commonly<br />

given to livestock, ei<strong>the</strong>r alone or in proprietary blocks that may contain<br />

o<strong>the</strong>r minerals. Where herbage is deficient in minerals, which are essential<br />

to animal growth, <strong>the</strong>ir well -being <strong>and</strong> productivity suffers. Phosphorus<br />

deficiency is widespread <strong>and</strong> is especially acute in sub-Saharan Africa. Several<br />

minor elements may be deficient in localized areas: <strong>the</strong> pastures <strong>of</strong> <strong>the</strong> Kenya<br />

Rift Valley between Nakuru <strong>and</strong> Naivasha were notorious for poor livestock<br />

performance; this “Nakuritis” was diagnosed as cobalt deficiency <strong>and</strong> has since<br />

been found on many o<strong>the</strong>r grassl<strong>and</strong>s.


Grassl<strong>and</strong> perspectives 471<br />

Trees <strong>and</strong> shrubs<br />

Trees <strong>and</strong> shrubs are important features <strong>of</strong> many grassl<strong>and</strong>s, especially <strong>of</strong><br />

savannahs. Some are very useful, o<strong>the</strong>rs are invasive weeds. Trees provide<br />

valuable shade in hot climates <strong>and</strong> seasons <strong>and</strong> <strong>the</strong>y give shelter in winter . Some<br />

trees are browsed <strong>and</strong> may be lopped for fodder – <strong>the</strong>ir fruits can also provide<br />

valuable feed. A wide range <strong>of</strong> genera is involved <strong>and</strong> <strong>the</strong>ir management is<br />

still poorly understood; <strong>the</strong> tolerance <strong>of</strong> most woody species to stock-feeding<br />

regimes <strong>and</strong> lopping still needs study, although a good deal <strong>of</strong> work has been<br />

done on Leucaena . Woody vegetation provides branches <strong>and</strong> poles for building<br />

<strong>and</strong> making corrals <strong>and</strong> firewood. Where firewood is scarce, excessive cutting<br />

causes serious environmental damage, as in steppic conditions, where much<br />

damage is due to uprooting sub-shrubs for fuel. Some trees provide fruit which<br />

is valued by local people – such trees may be retained selectively <strong>and</strong> given<br />

some protection. Woody vegetation is, however, <strong>of</strong>ten invasive, especially in<br />

tropical <strong>and</strong> sub-tropical conditions; bush encroachment is generally taken as a<br />

sign <strong>of</strong> poor management <strong>and</strong> overgrazing; this is dealt with below.<br />

Pasture development methods<br />

Clearing<br />

After water supply, clearing is a common part <strong>of</strong> developing extensive grassl<strong>and</strong><br />

for grazing . Where l<strong>and</strong> is being developed for crops or sown pasture , clearing<br />

may involve some removal <strong>of</strong> stones, termite hills <strong>and</strong> o<strong>the</strong>r obstructions, but,<br />

for extensive grazing, clearing usually involves removing or thinning woody<br />

vegetation to improve access <strong>and</strong> grass growth or to reduce tsetse fly habitat . In<br />

traditional systems , fire is <strong>the</strong> commonest agent for clearing or controlling trees<br />

<strong>and</strong> shrubs. Specialized equipment is used for large-scale commercial clearing<br />

– tree-pushers, drag chains, bulldozers, root ploughs <strong>and</strong> root rakes, <strong>and</strong>, for<br />

shrubs, various rollers <strong>and</strong> shredders; <strong>the</strong> debris may be burnt. The degree<br />

<strong>of</strong> clearing or thinning will depend on <strong>the</strong> original vegetation <strong>and</strong> <strong>the</strong> use to<br />

which it is put, but it is usually partial <strong>and</strong> selective, leaving useful trees, shade<br />

<strong>and</strong> shelter. Selective clearing has been used to reduce tsetse habitat. Woodl<strong>and</strong><br />

destruction for pasture development is now recognized as environmentally<br />

undesirable, although it continues on a fairly large scale in <strong>the</strong> Amazon basin.<br />

Strategic thinning <strong>of</strong> woody vegetation has a role in pasture development <strong>and</strong><br />

improvement , but it must be done within <strong>the</strong> context <strong>of</strong> <strong>the</strong> ecosystem involved.<br />

The Australian study indicates that some leases now restrict tree clearing; it<br />

also highlights <strong>the</strong> fact that <strong>the</strong> removal <strong>of</strong> trees <strong>and</strong> <strong>the</strong>ir replacement by crops<br />

<strong>and</strong> annual pastures has made major changes to <strong>the</strong> hydrological cycle <strong>and</strong> can<br />

lead to serious salination <strong>of</strong> soils.<br />

Bush control<br />

Bush control is necessary in many grassl<strong>and</strong> types ; it is a maintenance activity,<br />

while bush clearing is development . Bush encroachment usually indicates


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<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

faults in <strong>the</strong> management system <strong>and</strong> is associated with high grazing pressures ;<br />

several mechanisms are involved according to vegetation type <strong>and</strong> management<br />

system. Unpalatable shrubs may increase when <strong>the</strong> more palatable ones are<br />

overgrazed; if little dry herbage remains in <strong>the</strong> non-growing season <strong>the</strong>re may<br />

not be hot enough fires to control <strong>the</strong> bush. Goats browse much more than<br />

cattle <strong>and</strong> mixed grazing is probably less favourable to bush establishment than<br />

cattle alone; goats may be used to browse regrowth after fire . Herbicides are<br />

used in some commercial systems ; <strong>the</strong>y are favoured in South Africa <strong>and</strong> used to<br />

prepare l<strong>and</strong> for over-seeding in <strong>the</strong> Campos . Bush encroachment is mentioned<br />

in many <strong>of</strong> <strong>the</strong> studies. Indigenous plants are usually involved but alien shrubs<br />

<strong>and</strong> trees can be very invasive: <strong>the</strong> Australian study mentions Acacia nilotica ,<br />

which is a highly respected source <strong>of</strong> browse <strong>and</strong> pods in Africa, Pakistan <strong>and</strong><br />

India ; Opuntia spp. are pasture weeds in many areas outside <strong>the</strong>ir homel<strong>and</strong>;<br />

Prosopis velutina , which has been widely used for revegetation <strong>of</strong> degraded dry<br />

areas in parts <strong>of</strong> Africa, nor<strong>the</strong>rn India <strong>and</strong> Pakistan, invades grazing l<strong>and</strong> <strong>and</strong><br />

forms dense thickets; in wetter areas, Lantana camara is a widespread pest; <strong>and</strong><br />

in high-rainfall zones , guava (Psidium spp. ) colonizes grazing l<strong>and</strong>.<br />

Fire<br />

Controlled fire is a major factor in determining <strong>the</strong> composition <strong>of</strong> grassl<strong>and</strong>s<br />

<strong>and</strong> a widespread <strong>and</strong> powerful tool in grassl<strong>and</strong> management . Its effect depends<br />

on its intensity, seasonality, frequency <strong>and</strong> type . The intensity depends on <strong>the</strong><br />

type, structure <strong>and</strong> abundance <strong>of</strong> fuel. It is mentioned in most <strong>of</strong> <strong>the</strong> studies,<br />

except in those with more arid climates. Fire is used to remove unpalatable<br />

grass <strong>and</strong> enable regrowth <strong>and</strong> access to <strong>the</strong> young herbage by grazing stock.<br />

It <strong>of</strong>ten stimulates regrowth <strong>and</strong> supplies a green bite when most needed.<br />

Fire is also used, as discussed above, to control woody vegetation . Burning <strong>of</strong><br />

grassl<strong>and</strong> must be carefully controlled <strong>and</strong> timed, o<strong>the</strong>rwise it can cause serious<br />

damage; this is not discussed in any <strong>of</strong> <strong>the</strong> studies, although planning burning<br />

<strong>and</strong> controlling fire is difficult <strong>and</strong> labour-consuming. Since fire has so severe<br />

an effect, burning must take <strong>the</strong> whole ecosystem into account, not only <strong>the</strong><br />

grass <strong>and</strong> <strong>the</strong> grazing livestock. Ill-timed fire can have a devastating effect on<br />

wildlife , including nesting <strong>and</strong> young birds . Most developed countries have<br />

regulations governing burning <strong>of</strong> natural vegetation. For example periodic<br />

burning is necessary to maintain <strong>the</strong> Calluna -dominated pastures <strong>of</strong> <strong>the</strong> United<br />

Kingdom; strips are burnt in different years to produce a mosaic <strong>of</strong> hea<strong>the</strong>r<br />

<strong>of</strong> different ages. Burning is regulated by law <strong>and</strong> <strong>the</strong> season is defined to<br />

minimize damage to wildlife according to a “Muirburn Code” (The Scottish<br />

Executive 2003). Uncontrolled fire is, <strong>of</strong> course, a risk in many areas. It may<br />

occur spontaneously through lightning strike, but very <strong>of</strong>ten it is due to<br />

careless grassl<strong>and</strong> burning, through fires lit to drive out game or through arson.<br />

The Mongolia study mentions <strong>the</strong> care taken by herders to avoid grassl<strong>and</strong><br />

fire – in Mongolia’s cold winter <strong>the</strong>re would be no regrowth <strong>and</strong> burnt herbage


Grassl<strong>and</strong> perspectives 473<br />

is lost. While too frequent burning is undesirable, long periods between fires<br />

may in some cases, lead to a build up <strong>of</strong> combustible material which, if ignited,<br />

will give a very fierce <strong>and</strong> destructive fire.<br />

Fencing<br />

Fencing is widely used in <strong>the</strong> development <strong>of</strong> commercial grazing enterprises<br />

to delimit properties <strong>and</strong> subdivide <strong>the</strong>m for ease <strong>of</strong> management . Block size is<br />

generally large on low-yielding grassl<strong>and</strong>s since fencing <strong>and</strong> fence maintenance<br />

are costly; this can lead to uneven stock distribution. Fences are also used to<br />

protect forages <strong>and</strong> hay l<strong>and</strong> within properties. The Patagonia study gives<br />

an example <strong>of</strong> protecting high-quality meadows for individual management.<br />

Fences are not used by traditional herders, but authorities sometimes erect<br />

fences within traditional grazing l<strong>and</strong>s for disease control .<br />

Grassl<strong>and</strong> improvement<br />

“Improvement” <strong>of</strong> extensive natural grassl<strong>and</strong> by introduction <strong>of</strong> selected local<br />

or exotic grasses <strong>and</strong> legumes has been done experimentally in most <strong>of</strong> <strong>the</strong> better-watered<br />

zones , <strong>and</strong> is used by some commercial systems ; it is, <strong>of</strong> course,<br />

along with sown pasture , common in commercial mixed farming <strong>and</strong> more<br />

intensively managed grassl<strong>and</strong>. Techniques usually involve at least temporary<br />

suppression <strong>of</strong> <strong>the</strong> existing vegetation (by fire , hard grazing , herbicides or<br />

mechanically, alone or in combination) <strong>and</strong> differing degrees <strong>of</strong> disturbance <strong>of</strong><br />

<strong>the</strong> soil surface; fertilizer is <strong>of</strong>ten used, <strong>and</strong> when legumes are introduced to an<br />

area for <strong>the</strong> first time inoculation <strong>of</strong> <strong>the</strong>ir seed with <strong>the</strong> appropriate Rhizobium<br />

is a wise precaution.<br />

Choice <strong>of</strong> species <strong>and</strong> cultivar to suit climate, soil <strong>and</strong> ultimate use is very<br />

important <strong>and</strong>, while <strong>the</strong>re is a very wide range <strong>of</strong> genetic material <strong>of</strong> pasture<br />

crops available, it may be difficult to match <strong>the</strong>m to new areas. Finding commercial<br />

quantities <strong>of</strong> seed <strong>of</strong> locally adapted cultivars <strong>and</strong> ecotypes is <strong>of</strong>ten<br />

difficult. Care in management is <strong>of</strong>ten needed to assure <strong>the</strong> longevity <strong>of</strong> <strong>the</strong><br />

introduced species, <strong>and</strong> maintenance fertilizer may be required. The success<br />

<strong>of</strong>, <strong>and</strong> in part <strong>the</strong> need for, over-seeding depends not only on climate <strong>and</strong><br />

soil but also <strong>the</strong> vigour <strong>and</strong> aggressiveness <strong>of</strong> <strong>the</strong> native vegetation . The studies<br />

dealing with commercial systems all mention over-seeding. It has been<br />

successful in Patagonia on an experimental scale, using both indigenous <strong>and</strong><br />

exotic material, but, in such dry conditions, was unlikely to be economically<br />

viable. In <strong>the</strong> Campos , over-seeding, especially with exotic temperate species,<br />

mainly legumes, is successful <strong>and</strong> <strong>the</strong> introduction <strong>of</strong> temperate legumes has a<br />

very beneficial effect on winter pastures. Pasture improvement is widely used<br />

in Australia <strong>and</strong> self-reseeding annuals (especially Medicago spp. <strong>and</strong> Trifolium<br />

spp.) have become important in <strong>the</strong> Mediterranean climatic zone; <strong>the</strong> selfreseeding<br />

Stylosan<strong>the</strong>s humilis was very important in tropical pastures until<br />

it was wiped out by disease. The South Africa n <strong>and</strong> North American studies


474<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

mention over-seeding for <strong>the</strong> revegetation <strong>of</strong> ab<strong>and</strong>oned cropl<strong>and</strong> – a subject<br />

discussed below.<br />

Attitudes to over-seeding <strong>and</strong> <strong>the</strong> introduction <strong>of</strong> exotic pasture plants to<br />

natural grassl<strong>and</strong> ecosystems are changing. The ability to spread <strong>and</strong> colonize<br />

in a grazing situation used to be a desirable characteristic <strong>of</strong> plants for pasture<br />

improvement – now such plants may be regarded as invasive aliens.<br />

Fertilizer may be used, with or without reseeding if <strong>the</strong> botanical composition<br />

<strong>of</strong> <strong>the</strong> sward is appropriate <strong>and</strong> economics warrant it, <strong>and</strong> slashing is<br />

sometimes used to reduce coarse vegetation .<br />

Grassl<strong>and</strong> rehabilitation<br />

Degraded grassl<strong>and</strong> is a symptom <strong>of</strong> weakness in <strong>the</strong> pastoral production<br />

system <strong>and</strong> <strong>the</strong>se weaknesses have to be identified <strong>and</strong> dealt with before fur<strong>the</strong>r<br />

action can be taken. Where rehabilitation <strong>of</strong> grassl<strong>and</strong> is desirable it should<br />

be through management methods, with or without water-spreading. Overseeding<br />

degraded rangel<strong>and</strong> is rarely an attractive option <strong>and</strong> reliance has to<br />

be put on making <strong>the</strong> most <strong>of</strong> <strong>the</strong> recovery <strong>of</strong> <strong>the</strong> natural vegetation . Assuring<br />

even grazing over an area, keeping stock numbers within reasonable limits, <strong>and</strong><br />

avoiding localized overgrazing can all help.<br />

Degradation <strong>of</strong> pasture can have effects more serious than reduction <strong>of</strong><br />

available grazing ; increased run<strong>of</strong>f can lead to flooding <strong>and</strong> siltation <strong>of</strong> more<br />

valuable l<strong>and</strong> <strong>and</strong> infrastructure lower in <strong>the</strong> catchment. In such cases action<br />

may have to be taken to reduce run<strong>of</strong>f; in severe cases grassl<strong>and</strong> that is a focus<br />

for run<strong>of</strong>f <strong>and</strong> erosion may have to be closed, temporarily or permanently, with<br />

or without forestation – this is being done on a large scale in China , notable in<br />

<strong>the</strong> Yellow River <strong>and</strong> Yangtze catchments. Many grassl<strong>and</strong>s are very resilient<br />

<strong>and</strong> will recover from serious misuse through resting; if, however, change <strong>and</strong><br />

degradation has been very serious, <strong>the</strong> grassl<strong>and</strong> may have passed <strong>the</strong> point <strong>of</strong><br />

recovery, <strong>and</strong> while rest will allow some sort <strong>of</strong> vegetative cover to develop, it<br />

will not be as <strong>the</strong> original grassl<strong>and</strong>.<br />

Two situations closely allied to grassl<strong>and</strong> rehabilitation are old mining <strong>and</strong><br />

industrial sites <strong>and</strong> cropl<strong>and</strong> that is being removed from cultivation . Treatment<br />

<strong>of</strong> mining sites is a specialized matter. Marginal cropl<strong>and</strong> going out <strong>of</strong> cultivation<br />

is mentioned in East <strong>and</strong> South Africa , North America <strong>and</strong> Russia . Where<br />

adapted grasses are available, reseeding may be a better option than relying<br />

on tumble-down fallow since old crop l<strong>and</strong> may not turn spontaneously to a<br />

grassl<strong>and</strong> but to weeds or thicket.<br />

HERD MANAGEMENT<br />

In commercial systems management generally aims at improving animal<br />

status <strong>and</strong> usually concentrates on one, or at <strong>the</strong> most two, species. Common<br />

management practices to that end include: dividing herds into categories so<br />

that <strong>the</strong>y get <strong>the</strong> appropriate treatment, avoiding underage <strong>and</strong> unseasonable


Grassl<strong>and</strong> perspectives 475<br />

breeding; controlling parasites <strong>and</strong> predators ; providing veterinary care; <strong>and</strong> using<br />

<strong>and</strong> maintaining breeds that suit <strong>the</strong>ir l<strong>and</strong> <strong>and</strong> potential markets. Commercial<br />

properties are <strong>of</strong>ten ring-fenced <strong>and</strong> divided into paddocks to allow herd division<br />

<strong>and</strong>, in some cases, rotational grazing or resting <strong>of</strong> part <strong>of</strong> <strong>the</strong> grassl<strong>and</strong> .<br />

Choice <strong>of</strong> species <strong>and</strong> breed is in part determined by <strong>the</strong> pasture <strong>and</strong> <strong>the</strong><br />

climate, but, in commercial systems , market requirements are central <strong>and</strong>,<br />

on extensive grazing , beef cattle <strong>and</strong> sheep predominate. In warmer climates,<br />

zebus or cattle with some zebu blood, <strong>of</strong>ten developed locally, are becomingly<br />

increasingly popular. Cattle are usually specialized breeds, not dual or<br />

multipurpose. Sheep breeds commonly raised in Australasia dominate <strong>the</strong><br />

o<strong>the</strong>r commercial areas studied.<br />

Traditional systems , while selling livestock <strong>and</strong> livestock products, are<br />

designed primarily to provide subsistence <strong>and</strong> security to <strong>the</strong> herders. Livestock<br />

are usually multipurpose, producing meat , milk , fibre, hides, transport, draught<br />

<strong>and</strong> manure, which is also used as fuel in treeless l<strong>and</strong>s. They <strong>of</strong>ten keep several<br />

species, which may be herded separately; this assists in providing a wider<br />

range <strong>of</strong> products. In sub-Saharan Africa, many herders keep cattle , sheep <strong>and</strong><br />

goats , but in <strong>the</strong> drier areas small stock, or in nor<strong>the</strong>ast Africa, camels <strong>and</strong> small<br />

stock, are kept. In North Africa <strong>and</strong> western Asia, small stock, especially sheep<br />

<strong>and</strong> camels, were general in extensive herding but with <strong>the</strong> increasing popularity<br />

<strong>of</strong> motor transport camels have become much less common. In India <strong>and</strong><br />

Pakistan , buffalo are also herded, but herding groups tend to keep a narrow<br />

range <strong>of</strong> stock <strong>and</strong> specialize in ei<strong>the</strong>r small or large ruminants. In much <strong>of</strong><br />

Central Asia <strong>and</strong> Mongolia , herding involves “<strong>the</strong> five animals” – horses,<br />

camels, cattle, sheep <strong>and</strong> goats. There are a number <strong>of</strong> reasons, in addition to<br />

widening <strong>the</strong> range <strong>of</strong> products, for keeping several species: <strong>the</strong>y may make<br />

more efficient use <strong>of</strong> grazing resource s than monospecific grazing, for example,<br />

goats, horses <strong>and</strong> camels make better use <strong>of</strong> shrubs than do cattle or sheep;<br />

pasture condition may be better maintained if several species are involved; <strong>and</strong><br />

multiple species may also reduce risk .<br />

Traditional systems use local, hardy, <strong>of</strong>ten multi-purpose breeds, which can<br />

survive <strong>and</strong> produce under harsh conditions without many external inputs.<br />

Introduction <strong>of</strong> blood <strong>of</strong> “more productive” breeds to herding systems has had<br />

little effect since such animals are soon weeded out under herding conditions:<br />

<strong>the</strong> massive reduction in sheep numbers after decollectivization in those countries<br />

<strong>of</strong> <strong>the</strong> former USSR where “improved ” breeds were kept, contrasts with<br />

<strong>the</strong> rise <strong>of</strong> stock numbers in Mongolia , which had maintained local breeds, during<br />

<strong>the</strong> same period. Market dem<strong>and</strong> affects traditional systems also, although<br />

less so than commercial ones: <strong>the</strong> main livestock <strong>of</strong> <strong>the</strong> Jordanian badia was<br />

camels , but over <strong>the</strong> years <strong>the</strong>se have been replaced by sheep fed on bought<br />

feed; decollectivization in Mongolia coincided with high prices for cashmere<br />

<strong>and</strong> goat numbers rose much more sharply than those <strong>of</strong> o<strong>the</strong>r stock.


476<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 12.4<br />

Fenced areas (exclosures) in Inner Mongolia demonstrate <strong>the</strong> impact <strong>of</strong> excessive<br />

grazing on pasture condition .<br />

Stocking rates <strong>and</strong> stock distribution<br />

Regulation <strong>of</strong> <strong>the</strong> stocking rate <strong>and</strong> managing <strong>the</strong> spatial <strong>and</strong> temporal<br />

distribution <strong>of</strong> livestock are <strong>the</strong> basis <strong>of</strong> grazing management (Plate 12.4).<br />

The amount <strong>of</strong> livestock that a particular area <strong>of</strong> grassl<strong>and</strong> can carry is not<br />

dependent on its botanical composition alone, since it has to take into account<br />

<strong>the</strong> management objectives <strong>of</strong> <strong>the</strong> graziers <strong>and</strong> <strong>the</strong> availability <strong>and</strong> siting<br />

<strong>of</strong> o<strong>the</strong>r grassl<strong>and</strong> resources , notably water. Extensive grassl<strong>and</strong> s are not<br />

homogeneous but usually show spatial heterogeneity according to moisture<br />

<strong>and</strong> fertility gradients. Stock may tend to concentrate on <strong>the</strong> better grassl<strong>and</strong><br />

<strong>and</strong> ignore poorer sites or those far<strong>the</strong>r from water. Some pastures may be<br />

suited to grazing at certain seasons or, as in alpine grassl<strong>and</strong>s, only available<br />

seasonally. Stocking must be seen in <strong>the</strong> context <strong>of</strong> <strong>the</strong> whole area available <strong>and</strong><br />

management decisions made in <strong>the</strong> light <strong>of</strong> local knowledge, be it <strong>the</strong> rancher<br />

who knows his property well or <strong>the</strong> herding group with traditional knowledge<br />

<strong>of</strong> <strong>the</strong>ir grazing grounds: extensive grazing is managed at <strong>the</strong> l<strong>and</strong>scape ra<strong>the</strong>r<br />

than at <strong>the</strong> local scale.<br />

Since <strong>the</strong> productivity <strong>of</strong> natural pasture , especially in drier climates, varies<br />

widely from year to year, <strong>the</strong> maximum amount <strong>of</strong> livestock that can be<br />

raised <strong>the</strong>reon also varies. Commercial systems usually have stock in paddocks,<br />

whereas traditional herders move <strong>the</strong>ir livestock daily to follow changes in <strong>the</strong><br />

quantity <strong>and</strong> quality <strong>of</strong> pasture. Emergency feeding or destocking is expensive:<br />

commercial enterprises usually have more conservative stocking rates than<br />

S.G. REYNOLDS


Grassl<strong>and</strong> perspectives 477<br />

traditional, mobile ones; <strong>the</strong> latter accept more risk <strong>and</strong> may be able to move<br />

to avoid severe forage or water shortages.<br />

The studies show that <strong>the</strong>re are wide ranges <strong>of</strong> stocking rates used or<br />

advocated within areas. With up-to-date technology, most <strong>of</strong> <strong>the</strong> commercial<br />

areas are now able to make more accurate assessment <strong>of</strong> forage availability<br />

<strong>and</strong> grassl<strong>and</strong> condition over wide areas <strong>and</strong> better estimate safe stocking rates<br />

<strong>and</strong> monitor <strong>the</strong>ir effect. The Patagonia study shows that early stocking rates<br />

were far too high <strong>and</strong> led to serious resource degradation . The Australian<br />

study shows a surprisingly high estimate <strong>of</strong> degradation, with over half <strong>the</strong><br />

pastures <strong>of</strong> nor<strong>the</strong>rn Australia ei<strong>the</strong>r degraded or deteriorating. In o<strong>the</strong>r studies<br />

on commercial systems , overstocking has not been a serious problem. The<br />

eastern Africa n study quotes many conflicting estimates <strong>of</strong> carrying capacity<br />

<strong>and</strong> grassl<strong>and</strong> degradation. However, <strong>the</strong>se have not been based on as detailed<br />

work as those in commercial areas. In Mongolia , <strong>the</strong> traditional herding system<br />

follows a four-season pattern, grazing different pastures at each season, thus<br />

distributing <strong>the</strong> grazing load, with strategic short-distance moves, otor , to o<strong>the</strong>r<br />

pasture with different categories <strong>of</strong> animals as part <strong>of</strong> <strong>the</strong> routine <strong>and</strong> also helping<br />

to spread grazing <strong>and</strong> make best use <strong>of</strong> resources .<br />

Political changes have affected <strong>the</strong> movement <strong>and</strong> management <strong>of</strong> livestock<br />

in many herding l<strong>and</strong>s. Decollectivization has affected vast areas <strong>of</strong> <strong>the</strong> grazing<br />

l<strong>and</strong>s <strong>of</strong> Central Asia <strong>and</strong> Russia . In Mongolia , collapse <strong>of</strong> rural infrastructure<br />

<strong>and</strong> pumped water supplies have led to many areas remaining ungrazed, <strong>and</strong><br />

lack <strong>of</strong> security for winter grazing areas can restrict long migrations. In Central<br />

Asia <strong>and</strong> <strong>the</strong> Russian steppe, family herds are now too small to warrant herding,<br />

so livestock remain close to homesteads, while more distant pastures are<br />

unused. In Turkey , urban drift has led to a scarcity <strong>of</strong> people willing to work<br />

as shepherds – again, distant grassl<strong>and</strong>s are underused. In Africa, civil security<br />

<strong>and</strong> stock <strong>the</strong>ft are problems.<br />

The lean season<br />

Feed availability is very unevenly distributed throughout <strong>the</strong> year in areas <strong>of</strong><br />

extensive grassl<strong>and</strong>s, since <strong>the</strong>se generally have a restricted growing season due<br />

to rainfall or temperature. Managing stock through <strong>the</strong> lean season is a major<br />

concern in all <strong>the</strong> systems described <strong>and</strong> both traditional <strong>and</strong> commercial<br />

stock owners exercise skill <strong>and</strong> ingenuity in palliating seasonal feed scarcity.<br />

Situations <strong>and</strong> strategies vary, as do <strong>the</strong> causes <strong>of</strong> <strong>the</strong> deficit <strong>and</strong> <strong>the</strong> types <strong>of</strong><br />

production.<br />

In warm <strong>and</strong> tropical climates, <strong>the</strong> dry season is <strong>the</strong> main time <strong>of</strong> feed<br />

deficit. The problem is not always a lack <strong>of</strong> st<strong>and</strong>ing vegetation , but that many<br />

tropical grassl<strong>and</strong>s, once mature, provide herbage <strong>of</strong> very low nutritive value.<br />

In traditional systems , fodder conservation is almost unknown; stock graze as<br />

best <strong>the</strong>y can <strong>and</strong> lose weight through <strong>the</strong> dry season. In eastern <strong>and</strong> sou<strong>the</strong>rn<br />

Africa, pastoral groups usually remain within <strong>the</strong>ir own territory, although


478<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>the</strong>re may be some seasonal movement – <strong>the</strong>y usually have little access to crop<br />

residues . In West Africa , however, pastoral groups are transhumant , moving<br />

between <strong>the</strong> desert edge <strong>and</strong> <strong>the</strong> forest fringe ; <strong>the</strong>y frequently have access to<br />

crop residues. Browse is important in dry-season feeding although this is not<br />

dealt with in detail in <strong>the</strong> African chapters. Water is <strong>of</strong>ten scarce during <strong>the</strong><br />

dry season <strong>and</strong> in traditional systems it may be as important as feed. Fodder<br />

conservation is not part <strong>of</strong> <strong>the</strong> feeding strategies <strong>of</strong> <strong>the</strong>se pastoralists.<br />

Crop residues , however, are important in many traditional grassl<strong>and</strong> systems<br />

, especially in agropastoral systems; <strong>the</strong>y are also widely used (with or<br />

without treatment) in many commercial systems <strong>and</strong> feedlots. Hay <strong>and</strong> straw<br />

conservation <strong>and</strong> use is discussed in ano<strong>the</strong>r publication in this series (Suttie,<br />

2000) <strong>and</strong> silage making in <strong>the</strong> tropics by t’Mannetje (2000).<br />

Lean-season strategies in cold areas depend partly on whe<strong>the</strong>r <strong>the</strong> winters<br />

are dry or not, <strong>and</strong> on <strong>the</strong> depth <strong>of</strong> snow cover. In areas <strong>of</strong> summer precipitation<br />

, such as Mongolia , <strong>the</strong> grassl<strong>and</strong>s <strong>of</strong> nor<strong>the</strong>rn China <strong>and</strong> <strong>the</strong> Tibet -Qinghai<br />

plateau, livestock can graze throughout <strong>the</strong> winter , although unusual wea<strong>the</strong>r<br />

events can cause severe losses. The herding strategy is to get stock into <strong>the</strong> best<br />

possible condition during summer <strong>and</strong> autumn so that <strong>the</strong>y can survive <strong>the</strong><br />

winter. Transhumance between three or four seasonal pastures is still practised<br />

in Mongolia; <strong>the</strong> winter pastures are <strong>the</strong> key to <strong>the</strong> annual system; mobility<br />

gives herders some opportunity to escape adverse wea<strong>the</strong>r events. Seasonal destocking,<br />

which includes both sale <strong>of</strong> excess stock <strong>and</strong> slaughter <strong>and</strong> freezing <strong>of</strong><br />

<strong>the</strong> stock that will be consumed domestically before <strong>the</strong> spring thaw, reduces<br />

Plate 12.5<br />

Alfalfa (Medicago sativa ) hay being collected for winter feeding <strong>of</strong> stock in Altai<br />

Prefecture, Xinjiang , China .<br />

J.M. SUTTIE


Grassl<strong>and</strong> perspectives 479<br />

<strong>the</strong> number <strong>of</strong> animals that have to overwinter. A little meadow hay is made,<br />

but its use is limited to a few weak stock; Wang (2003) describes a case where<br />

herding has been combined with irrigated fodder growing (Plate 12.5), with<br />

very positive results. Stock may be housed or sheltered at night <strong>and</strong> during<br />

severe wea<strong>the</strong>r. Such systems are probably inevitable in a subsistence economy<br />

in situations where complementary fodder is inaccessible <strong>and</strong> very expensive,<br />

but it does mean that stock must be bred for hardiness ra<strong>the</strong>r than high productivity<br />

<strong>and</strong> also that animals are old by <strong>the</strong> time <strong>the</strong>y reach slaughter weight.<br />

The Patagonian sheep industry, also in a cold, semi -arid zone, relies on natural<br />

grazing without supplementation, with set stocking throughout <strong>the</strong> year.<br />

In <strong>the</strong> cattle -raising systems <strong>of</strong> <strong>the</strong> nor<strong>the</strong>rn parts <strong>of</strong> central North America ,<br />

<strong>the</strong> common approach is very different from that <strong>of</strong> traditional systems, <strong>and</strong><br />

winter feeding is widely used, not only because inclement wea<strong>the</strong>r may preclude<br />

grazing but also because <strong>the</strong> feeding value <strong>of</strong> natural pasture drops <strong>of</strong>f<br />

sharply after <strong>the</strong> growing season. In many cases, natural grassl<strong>and</strong> is used in<br />

conjunction with arable , <strong>and</strong> fodder for winter will be produced on-farm ; large<br />

amounts <strong>of</strong> alfalfa hay <strong>and</strong> some cereal hay are used.<br />

In Mediterranean-type climates, <strong>the</strong> lean season is <strong>the</strong> hot, dry summer ;<br />

in many cases, transhumant systems were used to palliate its effects. These<br />

have become severely modified <strong>and</strong> in much <strong>of</strong> North Africa <strong>and</strong> Western<br />

Asia cultivation <strong>of</strong> semi -arid l<strong>and</strong>s has reduced <strong>the</strong> available pastures. Many<br />

countries in this region had subsidized grain sales to herders; meat prices are<br />

high <strong>and</strong> purchased grain is still widely used, with stocking rates far in excess<br />

<strong>of</strong> anything <strong>the</strong> grazing l<strong>and</strong>s could support. The use <strong>of</strong> large quantities <strong>of</strong><br />

feed along with improved water supplies, or trucked water, has had disastrous<br />

results for <strong>the</strong> pastoral vegetation . When discussing sustainable development <strong>of</strong><br />

dryl<strong>and</strong>s, FAO (1993) points out that improperly managed feeding can be very<br />

detrimental to pasture condition :<br />

“Drought <strong>and</strong> dry -season feeding reserves are a priority in terms <strong>of</strong> livestock production, but<br />

can cause overstocking <strong>and</strong> destruction <strong>of</strong> rangel<strong>and</strong> if purchased feed is used to maintain<br />

excessive grazing pressure on rangel<strong>and</strong>. Reserves are <strong>the</strong>refore best organized within <strong>the</strong> one<br />

management unit. Government subsidies on feed brought into dryl<strong>and</strong>s are especially destructive<br />

<strong>and</strong> are best avoided.”<br />

Stratification<br />

Stratification <strong>of</strong> livestock production – generally fattening stock under more<br />

favourable conditions than those in which <strong>the</strong>y were raised – is widespread<br />

in commercial systems , <strong>and</strong> can be a means <strong>of</strong> reducing <strong>the</strong> numbers carried<br />

on pastures through <strong>the</strong> lean season. It also speeds up <strong>the</strong> production cycle<br />

since, if stock are moved to better pastures <strong>and</strong> feedlots, <strong>the</strong>y avoid <strong>the</strong> growth<br />

checks <strong>and</strong> weight loss associated with extensive grassl<strong>and</strong>s due to scarce, lowquality<br />

fodder during <strong>the</strong> lean season. Markets increasingly require meat from<br />

quickly grown stock. Stratified production systems are generally associated


480<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

with <strong>the</strong> commercial livestock sector; traditional herders have usually less access<br />

to fattening facilities <strong>and</strong> many native breeds are less responsive to intensive<br />

feeding than improved ones. Various systems <strong>of</strong> stratification <strong>and</strong>/or feedlots are<br />

mentioned in <strong>the</strong> chapters on South Africa , <strong>the</strong> Campos (where much finishing<br />

is on better pastures), North America, <strong>and</strong> Australia . In Russia , indoor feeding<br />

was <strong>the</strong> rule. Feedlot fattening <strong>of</strong> cattle from extensive systems has been carried<br />

out in Kenya in <strong>the</strong> past. Small-scale fattening is, <strong>of</strong> course, common in many<br />

agropastoral <strong>and</strong> agricultural systems. In China , where <strong>the</strong>re is an increasing<br />

dem<strong>and</strong> for meat in <strong>the</strong> increasingly prosperous urban areas, intensive fattening<br />

<strong>of</strong> stock from extensive grassl<strong>and</strong>s has developed. Fattening is done in farming<br />

areas relatively close to cities where rice straw (fermented with ammonia or<br />

urea) forms <strong>the</strong> base <strong>of</strong> <strong>the</strong> ration, <strong>and</strong> cereals <strong>and</strong> agro-industrial by-products<br />

are readily available (see Dolberg <strong>and</strong> Finlayson, 1995; Simpson <strong>and</strong> Ou, 1996).<br />

Fattening stock is ei<strong>the</strong>r local or from <strong>the</strong> great nor<strong>the</strong>rn <strong>and</strong> western grazing<br />

l<strong>and</strong>s . China has both an exp<strong>and</strong>ing market for beef <strong>and</strong> a sound transport<br />

system between <strong>the</strong> grassl<strong>and</strong>s <strong>and</strong> <strong>the</strong> fattening areas.<br />

Stratification <strong>of</strong> sheep production, although little discussed in <strong>the</strong> text, is common<br />

in parts <strong>of</strong> Europe <strong>and</strong> probably elsewhere; sheep from <strong>the</strong> Scottish hills are<br />

traditionally fattened in <strong>the</strong> lowl<strong>and</strong>s, <strong>and</strong> hill ewes are crossed with o<strong>the</strong>r breeds<br />

for lowl<strong>and</strong> meat production. Sheep fattening is widespread in <strong>the</strong> Near East,<br />

sometimes with imported lambs, usually using cereals <strong>and</strong> concentrates – this has<br />

nothing to do with reducing grazing pressure . In many Islamic countries, <strong>the</strong>re is<br />

seasonal specialized sheep <strong>and</strong> goat fattening for religious festivals.<br />

SOWN PASTURE AND FODDER<br />

Sown pasture is <strong>of</strong>ten complementary to natural grassl<strong>and</strong> in commercial<br />

systems as, for example, strategic feed for specific seasons, for fattening or<br />

conservation . In many places under favourable conditions <strong>of</strong> soil <strong>and</strong> climate,<br />

sown pasture, <strong>of</strong>ten in rotation with crops , has replaced natural grassl<strong>and</strong>,<br />

but that is not <strong>the</strong> subject under discussion here. It is used by medium to<br />

large farms in commercial systems. Pasture improvement , which can involve<br />

clearing , over-seeding, etc., is discussed later, although <strong>the</strong> dividing line between<br />

“improved grassl<strong>and</strong>” <strong>and</strong> sown pasture is not a clear one. Traditional systems<br />

with small holdings <strong>and</strong> unfenced cropl<strong>and</strong> are unsuited to grazed artificial<br />

pasture – although <strong>the</strong>y may use cut-<strong>and</strong>-carry fodder. Sown pastures were<br />

well developed in <strong>the</strong> commercial sector in Kenya before structural changes<br />

in agriculture led to a vast reduction in <strong>the</strong> number <strong>of</strong> large dairy farms; <strong>the</strong><br />

technology is described in Bogdan’s (1977) classic Tropical pasture <strong>and</strong> fodder<br />

plants. In <strong>the</strong> commercial sector in South Africa , artificial pastures are widely<br />

used in <strong>the</strong> better watered areas; elsewhere in Africa, including Madagascar <strong>and</strong><br />

<strong>the</strong> North, sown pasture is not used, nor is it used in <strong>the</strong> Middle East or in Asia<br />

(“artificial grassl<strong>and</strong>” is a term much used in China , but is usually ei<strong>the</strong>r alfalfa<br />

for hay or annual forage for cut-<strong>and</strong>-carry). Patagonia is unsuited climatically


Grassl<strong>and</strong> perspectives 481<br />

to sown pasture, as are Mongolia <strong>and</strong> Tibet . The Campos , which is relatively<br />

well watered, has developed sown pastures using both summer - <strong>and</strong> winter -<br />

growing species, <strong>and</strong> sown pasture is important in <strong>the</strong> Pampas . In central<br />

North America , sown pasture, <strong>of</strong>ten in rotation with crops, plays an important<br />

role in livestock production. It is, <strong>of</strong> course, very important in o<strong>the</strong>r areas <strong>of</strong><br />

North America, Western Europe <strong>and</strong>, notably, New Zeal<strong>and</strong>.<br />

Sown pasture is widely used in <strong>the</strong> better-watered parts <strong>of</strong> Australia ,<br />

especially in <strong>the</strong> Mediterranean <strong>and</strong> temperate parts, although also used in<br />

<strong>the</strong> tropics. In areas <strong>of</strong> Mediterranean climate, self-reseeding annual forages<br />

are widely used in rotation with annual crops , most <strong>of</strong> <strong>the</strong> forages used<br />

are <strong>of</strong> Mediterranean origin, <strong>and</strong> <strong>the</strong> system is very similar to <strong>the</strong> ancient<br />

cereal-grazed-fallow rotation <strong>of</strong> that zone, except that, after initial seeding<br />

<strong>and</strong> establishment, fertilizer <strong>and</strong> grazing management is aimed at allowing<br />

<strong>the</strong> annuals to seed <strong>and</strong> regenerate: <strong>the</strong> area under annual rotational pastures<br />

(“leys” locally) is declining as rotation <strong>of</strong> cereals with o<strong>the</strong>r annual cash crops,<br />

including pulses, becomes more pr<strong>of</strong>itable. Much work has been carried out<br />

on tropical pastures, <strong>and</strong> <strong>the</strong>se are <strong>of</strong> some importance, but <strong>the</strong>re is need for<br />

legumes better adapted to grazing since Stylosan<strong>the</strong>s spp., once a mainstay <strong>of</strong><br />

sown <strong>and</strong> improved tropical pastures, were seen to be susceptible to attack by<br />

Colletotrichum spp. in <strong>the</strong> 1980s. Pasture improvement through over-seeding<br />

is also important. Sown pasture was not important on <strong>the</strong> Russian steppe<br />

during <strong>the</strong> period immediately prior to decollectivization, but <strong>the</strong> authors <strong>of</strong><br />

Chapter 10 argue that it should become so.<br />

Sown fodder<br />

Fodder in this context is forages grown as whole-crop feed for livestock,<br />

whe<strong>the</strong>r fed green or conserved. Such crops are <strong>of</strong>ten used to supplement<br />

grazing or for fattening or dairy production in many systems . Fodder is little<br />

used in <strong>the</strong> traditional pastoral systems <strong>of</strong> sub-Saharan Africa, but is becoming<br />

increasingly used in agropastoral <strong>and</strong> crop producing areas as available free<br />

grazing disappears. In eastern <strong>and</strong> sou<strong>the</strong>rn Africa, fodders were widely grown<br />

on large-scale dairy farms (Plate 12.6), but changes in farm size <strong>and</strong> farming<br />

systems have led to a great reduction in <strong>the</strong> range <strong>of</strong> fodders now grown;<br />

Pennisetum purpureum is widely used for cut-<strong>and</strong>-carry feeding by smallholders<br />

(Plates 12.7 <strong>and</strong> 12.8). Commercial grazing systems in South Africa use some<br />

fodder, including some for “exceptional circumstances ”, but most o<strong>the</strong>rs require<br />

irrigation, which can usually be used more pr<strong>of</strong>itably for o<strong>the</strong>r crops. Some fodder<br />

is grown in North Africa , a little irrigated alfalfa <strong>and</strong>, more important, oats<br />

for hay , which is <strong>of</strong>ten produced for sale to herders from drier areas (Chaouki<br />

et al., 2004). Little fodder is grown in <strong>the</strong> desert grazing l<strong>and</strong>s <strong>of</strong> <strong>the</strong> Near East.<br />

Egypt is unusual in North Africa as nearly all its livestock are stall fed, <strong>and</strong> cultivated<br />

fodder is important to supplement crop residues – <strong>the</strong> production system<br />

is very similar to that <strong>of</strong> <strong>the</strong> irrigated tracts <strong>of</strong> Punjab, <strong>and</strong> Alex<strong>and</strong>rian clover,


482<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 12.6<br />

Irrigated ryegrass pastures (Lolium multiflorum ) near Fort Nottingham, KwaZulu-<br />

Natal, South Africa .<br />

Plate 12.7<br />

Pennisetum purpureum .<br />

Trifolium alex<strong>and</strong>rinum (Plate 12.9), is <strong>the</strong> major winter fodder, with coarse cereals<br />

in summer .<br />

Cold, semi -arid Patagonia has little l<strong>and</strong> suited to fodder production, <strong>and</strong><br />

irrigated l<strong>and</strong>s are reserved for cash crops . The main production systems <strong>of</strong> <strong>the</strong><br />

Campos also rely on year-round grazing . In <strong>the</strong> Gran Chaco , alfalfa is grown<br />

S.G. REYNOLDS<br />

S.G. REYNOLDS


S.G. REYNOLDS<br />

SARDI<br />

Grassl<strong>and</strong> perspectives 483<br />

Plate 12.8<br />

Smallholder cut-<strong>and</strong>-carry dairy operation using Napier grass , near Embu, Kenya.<br />

Plate 12.9<br />

Egyptian clover or berseem (Trifolium alex<strong>and</strong>rinum).<br />

for hay , <strong>and</strong>, in some areas, smallholders produce hay for sale – this is described<br />

in Suttie (2000).<br />

Fodders are widely grown in Central North America <strong>and</strong> in commercial<br />

mixed farming systems throughout Europe <strong>and</strong> North America. A method<br />

<strong>of</strong> making oat fodder accessible to cattle even under snow cover is described


484<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 12.10<br />

Cattle grazing oats through snow in Canada, where <strong>the</strong> oats were swa<strong>the</strong>d at<br />

dough stage in September.<br />

from Canada by Fraser <strong>and</strong> McCartney (2004); “swath grazing ” provides<br />

late autumn <strong>and</strong> early winter grazing for beef cows (Plate 12.10). Late-sown<br />

cereals are swa<strong>the</strong>d in <strong>the</strong> early autumn from heading until dough stage. The<br />

livestock <strong>the</strong>n graze <strong>the</strong> swaths through <strong>the</strong> snow. The emphasis on fodder<br />

ra<strong>the</strong>r than grazing in <strong>the</strong> former USSR is mentioned above. Fodder growing<br />

<strong>and</strong> conservation are an ancient tradition in Turkey .<br />

Fodders are widely used in <strong>the</strong> better watered areas <strong>of</strong> Australia , for onfarm<br />

use, local sale <strong>and</strong> export (Armstrong et al., 2004) <strong>and</strong> are also widely<br />

grown in New Zeal<strong>and</strong>. As discussed in Chapter 10, fodder was a mainstay <strong>of</strong><br />

livestock production in <strong>the</strong> collective period, with much less interest in grazing ,<br />

but this is changing under economic pressure.<br />

In Central Asia during collective times, fodder, especially alfalfa, was widely<br />

grown for winter reserves ; <strong>the</strong> area has fallen sharply since decollectivization,<br />

since <strong>the</strong>re is now a need to use irrigated l<strong>and</strong> to assure local cereal needs, <strong>and</strong><br />

livestock numbers have fallen. Great areas <strong>of</strong> fodder are grown in China . Hu<br />

<strong>and</strong> Zhang (2003) give <strong>the</strong> area under alfalfa as 1 804 700 ha, forage maize at<br />

570 500 ha <strong>and</strong> fodder oats at 274 400 ha. The climate <strong>of</strong> <strong>the</strong> Tibetan steppe <strong>and</strong><br />

Mongolia is not suitable for fodder; a little oats is grown by Tibetan herders<br />

with subsidized seed from elsewhere; Mongolia grew fodder oats during <strong>the</strong><br />

collective period, but that ceased for economic reasons – only in <strong>the</strong> far west is<br />

some irrigated alfalfa grown for hay .<br />

DUANE McCARTNEY


MAGNUS HALLING<br />

SARDI<br />

Grassl<strong>and</strong> perspectives 485<br />

Plate 12.11<br />

Alfalfa or lucerne (Medicago sativa ).<br />

Plate 12.12<br />

Persian clover or shaftal (Trifolium resupinatum).<br />

In <strong>the</strong> Hindu Kush-Himalaya region, fodders are grown, especially<br />

in Afghanistan <strong>and</strong> Pakistan ; alfalfa (Plate 12.11) <strong>and</strong> shaftal (Trifolium<br />

resupinatum) (Plate 12.12) are important, but <strong>the</strong> areas are restricted by lack<br />

<strong>of</strong> l<strong>and</strong>. Vast areas <strong>of</strong> fodder are produced in <strong>the</strong> irrigated tracts <strong>of</strong> <strong>the</strong> plains


486<br />

Plate 12.13<br />

Oat seed production in Nepal .<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>of</strong> Pakistan, India <strong>and</strong>, to a lesser degree, Nepal to supplement crop residues<br />

in <strong>the</strong> feeding <strong>of</strong> vast numbers <strong>of</strong> stall-fed cattle <strong>and</strong> buffaloes: Trifolium<br />

alex<strong>and</strong>rinum <strong>and</strong> oats (Plate 12.13) are major winter crops , <strong>and</strong> coarse cereals<br />

predominate in summer .<br />

SOCIAL AND ECONOMIC FACTORS<br />

Often <strong>the</strong> problems <strong>of</strong> grassl<strong>and</strong>s <strong>and</strong> <strong>the</strong>ir users are more socio-economic<br />

than technical. Better management <strong>and</strong> improved livelihoods can only<br />

be attained if <strong>the</strong> legal, social <strong>and</strong> economic problems associated with<br />

pastoralism, especially traditional herding , are dealt with. “Training herders”<br />

used to be recommended in many projects, but it is futile to try to transfer<br />

technical ideas, probably developed elsewhere, when <strong>the</strong> herders have no<br />

security <strong>of</strong> tenure , <strong>the</strong> techniques have not been convincingly tested locally<br />

<strong>and</strong> poverty <strong>and</strong> population pressure mean that herders will not take extra<br />

risks.<br />

Tenure<br />

Secure tenure <strong>of</strong> l<strong>and</strong> or grazing rights is essential if stock-raisers <strong>and</strong><br />

pastoralists are to have secure livelihoods <strong>and</strong> can invest in <strong>and</strong> manage<br />

grassl<strong>and</strong> in a sustainable fashion. Where grassl<strong>and</strong> production systems<br />

are purely commercial (as in <strong>the</strong> studies on <strong>the</strong> commercial sector in South<br />

Africa , Patagonia , <strong>the</strong> Campos <strong>and</strong> Central North America) <strong>the</strong> l<strong>and</strong> is held<br />

in ei<strong>the</strong>r freehold or long-term leasehold. Commercial stock raisers can,<br />

<strong>the</strong>refore, invest in infrastructure, notably water <strong>and</strong> fencing – a major use <strong>of</strong><br />

J.M. SUTTIE


Grassl<strong>and</strong> perspectives 487<br />

fencing may be to delimit properties. Since commercial enterprises hold valid<br />

l<strong>and</strong> titles <strong>the</strong>ir l<strong>and</strong> can be used as collateral for loans.<br />

In <strong>the</strong> extensive , pastoral subsistence sector, grazing rights are much<br />

less clear. In <strong>the</strong> distant past <strong>the</strong>se l<strong>and</strong>s would have been managed under<br />

traditional authorities <strong>and</strong> disputes over encroachment by o<strong>the</strong>r herding<br />

groups or cultivators probably settled in battle. Changing times <strong>and</strong> régimes<br />

have left many pastoral groups in a state <strong>of</strong> uncertainty, <strong>and</strong> <strong>the</strong>y are <strong>of</strong>ten<br />

relatively neglected minorities, except in countries that are mainly pastoral<br />

– <strong>the</strong>se are few: Mongolia <strong>and</strong> Somalia are examples. In <strong>the</strong> traditional sector,<br />

grazing rights means pastoral resources in <strong>the</strong>ir wider sense, including access<br />

to water <strong>and</strong> to mineral licks where <strong>the</strong>se are used. The l<strong>and</strong> rights <strong>of</strong> settled<br />

farmers are recognized in most countries since <strong>the</strong>y are resident on <strong>the</strong>ir<br />

farms <strong>and</strong> obviously use <strong>the</strong>m; <strong>the</strong> rights <strong>of</strong> pastoral groups, however, who<br />

are usually mobile , are usually less well defined since <strong>the</strong>y only use a piece<br />

<strong>of</strong> grassl<strong>and</strong> at a particular season. If o<strong>the</strong>rs clear such grassl<strong>and</strong> for crops ,<br />

however unsustainable , it may be viewed as “development ” <strong>and</strong> pastoralists<br />

are at a disadvantage in claiming <strong>the</strong>ir rights. In addition, traditional pastoral<br />

tenure is not usually strong enough to prevent confiscation by <strong>the</strong> state,<br />

probably without compensation, for mineral prospection, infrastructure,<br />

building or nature reserves . While cropl<strong>and</strong> can conveniently be allocated to<br />

individual smallholders, <strong>the</strong> large areas <strong>of</strong> low-yielding grassl<strong>and</strong> involved in<br />

mobile herding <strong>and</strong> <strong>the</strong> desirability <strong>of</strong> managing such pasture at <strong>the</strong> l<strong>and</strong>scape<br />

scale make <strong>the</strong> allocation <strong>of</strong> grassl<strong>and</strong> to individual families problematic<br />

(although such allocation has been done in China ). Allocation to groups seems<br />

preferable, but at what scale <strong>and</strong> how to decide to whom grazing should be<br />

allocated is problematic.<br />

Markets <strong>and</strong> trade<br />

Commercial systems are, <strong>of</strong> course, market oriented, <strong>and</strong> nowadays most<br />

traditional systems sell <strong>the</strong>ir surplus production; <strong>the</strong> East Africa n study<br />

indicates that even conservative ethnic groups which formerly did not sell<br />

stock now market <strong>the</strong>ir surplus. Most <strong>of</strong> <strong>the</strong> studies report poor prices for<br />

grassl<strong>and</strong> produce; wool is probably most severely affected. The break-up<br />

<strong>of</strong> <strong>the</strong> USSR disrupted markets in Central Asia <strong>and</strong> Mongolia , <strong>and</strong> <strong>the</strong>se<br />

countries have yet to find new outlets. The effect <strong>of</strong> freer world trade on<br />

produce from extensive grassl<strong>and</strong>s has still to be seen, but meat produced<br />

by traditional herders who are far from consumers may be at a disadvantage<br />

– especially as urban consumers increasingly dem<strong>and</strong> meat from cattle that<br />

have been finished in feedlots or <strong>of</strong>f good pasture .<br />

Herder organization <strong>and</strong> community participation<br />

Regime <strong>and</strong> political change have disrupted old herder groupings <strong>and</strong> hierarchies,<br />

<strong>and</strong> decollectivization has left large areas with a disorganized pastoral sector.


488<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Often herds are too small for it to be pr<strong>of</strong>itable for a family to spare labour to<br />

take <strong>the</strong>m to pasture , <strong>and</strong> herding communities are fragmented. If semi -arid<br />

grassl<strong>and</strong>s are to be managed sustainably, some planning is necessary at <strong>the</strong><br />

l<strong>and</strong>scape scale. It is now widely accepted that rural development , including<br />

grassl<strong>and</strong> development, should be led by <strong>the</strong> ultimate users. Community<br />

participation is essential, but if it is to be effective, ra<strong>the</strong>r than token talking,<br />

a high priority should be developing some means <strong>of</strong> having herders organize<br />

<strong>the</strong>mselves into larger groups for deciding local herding policy, discussing with<br />

regional authorities <strong>and</strong> sharing herding tasks.<br />

Demotic factors<br />

Population pressure <strong>and</strong> rising populations on decreasing pastoral resources<br />

are mentioned in many traditional areas. The number <strong>of</strong> livestock that any area<br />

<strong>of</strong> extensive grassl<strong>and</strong> can carry sustainably is finite. If pastoral populations<br />

grow larger than <strong>the</strong>ir resource base can st<strong>and</strong> it is unlikely that technical<br />

solutions will be found.<br />

Diversification<br />

Because <strong>of</strong> poor returns from animal husb<strong>and</strong>ry a number <strong>of</strong> commercial<br />

enterprises in most <strong>of</strong> <strong>the</strong> countries studied are looking at alternative <strong>and</strong><br />

potentially more pr<strong>of</strong>itable uses for <strong>the</strong>ir grassl<strong>and</strong>s. Raising game <strong>and</strong> wildlife<br />

is already practised in eastern <strong>and</strong> South Africa <strong>and</strong> is probably exp<strong>and</strong>ing<br />

– this may be for specialist meats, tourism , hunting <strong>of</strong> a combination. Some<br />

mention organic meat .<br />

Tourism <strong>and</strong> eco-tourism is ano<strong>the</strong>r use <strong>of</strong> grassl<strong>and</strong>s; in commercial<br />

areas its benefits will go to <strong>the</strong> l<strong>and</strong>owner; <strong>the</strong> extent to which it will become<br />

important is unclear except where noteworthy scenery or wildlife is involved<br />

since many grassl<strong>and</strong> areas are remote <strong>and</strong> have little infrastructure. Tourism is<br />

encouraged by many governments since it brings <strong>the</strong>m revenue. However, in<br />

areas <strong>of</strong> traditional herding , tourism must be seen as beneficial by <strong>the</strong> graziers<br />

involved; <strong>the</strong> owners <strong>of</strong> large private establishments may negotiate fees, but<br />

in traditional systems tourists may be regarded as a nuisance if <strong>the</strong>y make no<br />

contribution to local livelihoods. A quotation from an article in <strong>the</strong> travel section<br />

<strong>of</strong> <strong>the</strong> Times (2004) is a good example <strong>of</strong> this:<br />

“Mongolia ’s reindeer people say that tourism is threatening <strong>the</strong>ir way <strong>of</strong> life. 207 people from<br />

Tsaganuur say that <strong>the</strong> small but growing numbers <strong>of</strong> tourists are disrupting <strong>the</strong> peace <strong>of</strong> <strong>the</strong><br />

taiga where <strong>the</strong>ir reindeer roam”<br />

GRASSLAND IN THE ENVIRONMENT<br />

Although grassl<strong>and</strong>s are <strong>of</strong> primary environmental importance, not least<br />

as catchment areas <strong>and</strong> sites for in situ conservation <strong>of</strong> biodiversity , <strong>the</strong>ir<br />

preservation <strong>and</strong> proper management are given relatively little attention by<br />

environmentalists <strong>and</strong> governments, which <strong>of</strong>ten see <strong>the</strong> traditional livestock


MARZIO MARZOT<br />

Grassl<strong>and</strong> perspectives 489<br />

Plate 12.14<br />

Kreb, a mixture <strong>of</strong> grains from wild<br />

grasses, is still used for human food<br />

in <strong>the</strong> Lake Chad area.<br />

sector more as a problem than an essential part <strong>of</strong> maintaining grassl<strong>and</strong>s<br />

<strong>and</strong> <strong>the</strong>ir biodiversity. Reserves <strong>and</strong> national parks are many <strong>and</strong> increasing;<br />

<strong>the</strong>y <strong>of</strong>ten reduce traditional grazing l<strong>and</strong>s , with little or no attention to<br />

<strong>the</strong>ir traditional users. Such reserves are for wildlife , biodiversity <strong>and</strong> <strong>of</strong>ten<br />

<strong>the</strong> consequent tourism , but <strong>the</strong> grassl<strong>and</strong> biome <strong>of</strong> such reserves requires<br />

properly managed grazing for its survival. Grassl<strong>and</strong> reserves as such are<br />

rarely mentioned: China (Hu <strong>and</strong> Zhang 2003) has eleven, covering two<br />

million hectares.<br />

Non-livestock grassl<strong>and</strong> products get little attention, but are important to<br />

local communities . Many wild plants are harvested as fruit <strong>and</strong> vegetables.<br />

Wild grass seeds are used as cereals (Plates 12.14 <strong>and</strong> 12.15). Many medicinal<br />

plants for both local use <strong>and</strong> sale are ga<strong>the</strong>red from grassl<strong>and</strong>s, as is wood<br />

<strong>and</strong> fuel. An interesting case study from <strong>the</strong> Lake Chad area is provided by<br />

Batello, Marzot <strong>and</strong> Touré (2004).<br />

In places such as in Nepal (see Plate 1.15) or in <strong>the</strong> Tibet Autonomous<br />

Region, China, near Lake Namtso (Plates 12.16a, b), grassl<strong>and</strong> sites can have<br />

a special religious significance. At Lake Namtso <strong>the</strong> nearby grassl<strong>and</strong>s are


490<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Plate 12.15<br />

Nomads agree that some areas should be protected from grazing so that grasses can produce<br />

seed for Kreb harvesting.<br />

Plate 12.16a<br />

Near Lake Namtso, Tibet Autonomous Region, China.<br />

MARZIO MARZOT<br />

S.G. REYNOLDS


S.G. REYNOLDS<br />

Grassl<strong>and</strong> perspectives 491<br />

Plate 12.16b<br />

Pilgrims at Lake Namtso.<br />

subject to heavy tourist <strong>and</strong> pilgrim traffic on certain occasions <strong>and</strong> tented<br />

encampments can spread out from <strong>the</strong> focal point to surrounding areas.<br />

SOME CONCLUSIONS<br />

The preceding chapters cover a very wide range <strong>of</strong> grassl<strong>and</strong> types <strong>and</strong><br />

production systems . They demonstrate clearly that extensive grassl<strong>and</strong> exists in<br />

many forms <strong>and</strong> is exploited in many ways, <strong>and</strong> that each great group requires<br />

its own way <strong>of</strong> management . This chapter does not attempt to summarize all<br />

<strong>the</strong> conclusions that can be drawn from <strong>the</strong>m, but some important ones are:<br />

• Many grassl<strong>and</strong>s are in poor condition . Most communally or traditionally<br />

managed grassl<strong>and</strong>s show some degree <strong>of</strong> degradation , <strong>and</strong> many are seriously<br />

damaged.<br />

• Modern technology allows relatively rapid assessment <strong>of</strong> herbage availability<br />

<strong>and</strong> pasture cover, as well as <strong>the</strong> processing <strong>of</strong> this information. This<br />

can be applied to commercially managed grassl<strong>and</strong>s, but <strong>the</strong>re are many<br />

problems – logistical, social <strong>and</strong> economic – in getting such information to<br />

traditional pastoralists <strong>and</strong> in <strong>the</strong>ir making use <strong>of</strong> it.<br />

• <strong>Grassl<strong>and</strong>s</strong> cover a very large proportion <strong>of</strong> <strong>the</strong> globe <strong>and</strong> are <strong>of</strong> primary<br />

environmental importance, so <strong>the</strong>ir sustainable management is a matter <strong>of</strong><br />

widespread interest <strong>and</strong> is not limited to those who gain <strong>the</strong>ir livelihoods<br />

<strong>the</strong>refrom. The general public benefits from <strong>the</strong> proper management <strong>of</strong><br />

catchments, l<strong>and</strong>scapes for wildlife , tourism , conservation <strong>of</strong> biodiversity ,<br />

recreation <strong>and</strong> hunting, but <strong>the</strong> management costs fall on <strong>the</strong> pastoralists be


492<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

<strong>the</strong>y traditional or commercial. In many areas, commercial stock-rearing <strong>of</strong>f<br />

extensive grassl<strong>and</strong> is in economic difficulties <strong>and</strong> <strong>the</strong> peoples <strong>of</strong> traditional<br />

systems are mostly poor to very poor. How can those who manage <strong>the</strong><br />

grassl<strong>and</strong>s be encouraged to do so for <strong>the</strong> general good, <strong>and</strong> how can <strong>the</strong>y<br />

be recompensed for adjusting management to even more environmentally<br />

friendly ways?<br />

• The management <strong>of</strong> communally held grassl<strong>and</strong>s is generally in great<br />

difficulties. Clarification <strong>of</strong> grazing rights , <strong>the</strong> putting in place <strong>of</strong> an appropriate<br />

legal framework, which should take into account existing perceived rights ,<br />

<strong>and</strong> allocation <strong>of</strong> some form <strong>of</strong> long-term security is necessary before herders<br />

can begin to indulge in medium- to long-term modifications to <strong>the</strong>ir existing<br />

systems . Technical grassl<strong>and</strong> interventions (apart from veterinary care) can<br />

only be useful once <strong>the</strong> tenure situation is clarified.<br />

• The overall management <strong>of</strong> extensive grazing l<strong>and</strong>s should be done within<br />

a wide framework on a very large, l<strong>and</strong>scape scale so that it is effective in<br />

dealing with <strong>the</strong> whole range <strong>of</strong> pastoral resources <strong>and</strong> products, covers<br />

<strong>the</strong> migration territories <strong>of</strong> transhumant groups as well as conserving<br />

wildlife <strong>and</strong> catchments. In traditional areas, pastoralists are <strong>of</strong>ten in small,<br />

poorly organized groups. Better planning <strong>and</strong> management is only likely<br />

to succeed if <strong>the</strong> pastoral population is assisted to organize itself into large<br />

groups that can enter into dialogue with one ano<strong>the</strong>r <strong>and</strong> <strong>the</strong> authorities,<br />

not only to participate but to play a leading role in <strong>the</strong> planning <strong>and</strong><br />

management processes.<br />

• High, <strong>and</strong> <strong>of</strong>ten increasing, livestock numbers, <strong>of</strong>ten associated with<br />

reduction <strong>of</strong> <strong>the</strong> area available for grazing , is usually associated with<br />

reported grassl<strong>and</strong> degradation . In pastoral systems , rising animal numbers<br />

are <strong>of</strong>ten associated with rises in <strong>the</strong> human population. The remaining<br />

extensive grassl<strong>and</strong>s are mainly in situations where intensification <strong>and</strong><br />

increase <strong>of</strong> herbage production is unlikely to be practical or economic.<br />

Rarely can more pasture l<strong>and</strong> be made available so, when population<br />

numbers obviously exceed <strong>the</strong> carrying capacity <strong>of</strong> <strong>the</strong> l<strong>and</strong>, thought must<br />

be given to alternative sources <strong>of</strong> livelihood.<br />

• Localized overgrazing with neglect <strong>of</strong> distant pasture is reported in several<br />

studies (this includes poor distribution <strong>of</strong> stock in big paddocks) <strong>and</strong> is a<br />

new but serious problem in countries that have undergone decollectivization<br />

<strong>and</strong> where <strong>the</strong>re are vast areas <strong>of</strong> steppic <strong>and</strong> mountain pasture. Again,<br />

<strong>the</strong>re is a strong case for organization <strong>of</strong> <strong>the</strong> pastoral population to adopt<br />

community herders, allocate ex-collective grazing rights <strong>and</strong> rehabilitate<br />

pastoral infrastructure.<br />

• Provision <strong>of</strong> lean-season feed is an important part <strong>of</strong> many extensive<br />

systems , this is excellent in farming systems <strong>and</strong> where stock are housed<br />

<strong>of</strong>f <strong>the</strong> pasture in <strong>the</strong> lean season. Maintaining numbers <strong>of</strong> stock far in<br />

excess <strong>of</strong> <strong>the</strong> grassl<strong>and</strong> carrying capacity with purchased feed is, however,


Grassl<strong>and</strong> perspectives 493<br />

extremely destructive, <strong>and</strong> subsidizing concentrates <strong>and</strong> cereals for herders<br />

is undesirable for sustainable grassl<strong>and</strong> use.<br />

• Improvement <strong>of</strong> <strong>the</strong> pastoral vegetation in extensive grassl<strong>and</strong>s should<br />

mainly be through manipulation <strong>of</strong> grazing pressure <strong>and</strong> <strong>the</strong> use <strong>of</strong> controlled<br />

fire . Over-seeding is not usually successful on poor soils with unreliable<br />

rainfall <strong>and</strong> is now <strong>of</strong>ten regarded as undesirable for <strong>the</strong> environment; it<br />

can, <strong>of</strong> course, be very useful in agropastoral systems in more favourable<br />

conditions.<br />

• A very wide range <strong>of</strong> genetic material <strong>of</strong> species, cultivars <strong>and</strong> ecotypes <strong>of</strong><br />

pasture grasses <strong>and</strong> legumes have been collected <strong>and</strong> screened, but only a<br />

very restricted range is readily available commercially.<br />

• Sown pasture , for grazing <strong>and</strong> mowing, plays a very important role in large-<br />

<strong>and</strong> medium-scale commercial mixed farming, <strong>and</strong> <strong>the</strong> use <strong>of</strong> perennial<br />

pastures is to be encouraged wherever possible <strong>and</strong> pr<strong>of</strong>itable since <strong>the</strong>y are<br />

<strong>of</strong>ten more environmentally desirable than annual cut-<strong>and</strong>-carry fodders.<br />

• Fodder crops can be useful for strategic use on favoured areas in extensive<br />

systems , especially for conservation or supplementing vulnerable classes <strong>of</strong><br />

stock. They are suitable for both smallholder <strong>and</strong> large-scale mixed farming<br />

enterprises <strong>and</strong> are becoming increasingly popular with smallholders who<br />

have access to markets for milk or fattened stock. While fodder technology<br />

is well developed generally, <strong>the</strong>re is still a lot to be done in identifying locally<br />

adapted material for smallholder areas, assuring seed supplies <strong>and</strong> training<br />

farmers.<br />

• What is <strong>the</strong> potential for diversifying <strong>the</strong> use <strong>of</strong> grassl<strong>and</strong>s? Commercial<br />

producers are experimenting with, for example, tourism <strong>and</strong> game -ranching.<br />

Will such management maintain <strong>the</strong> grassl<strong>and</strong> biome ?<br />

• The area <strong>of</strong> grassl<strong>and</strong> being put into reserves to conserve wildlife <strong>and</strong> biodiversity<br />

, as well as to encourage tourism , is increasing, <strong>of</strong>ten without regard<br />

to existing pastoral use. It is desirable that <strong>the</strong> creation <strong>of</strong> such reserves<br />

should take into account <strong>the</strong>ir effect on migration routes, access to essential<br />

grassl<strong>and</strong> resources <strong>and</strong> to what extent grazing livestock <strong>and</strong> controlled fire<br />

will be permitted or encouraged.<br />

• <strong>Grassl<strong>and</strong>s</strong> are sources <strong>of</strong> many products o<strong>the</strong>r than food for grazing livestock,<br />

but grassl<strong>and</strong> scientists have tended to limit <strong>the</strong>ir interests to grazing<br />

resource s . Greater attention to wider ethnobotanical matters is desirable.<br />

REFERENCES<br />

Armstrong, K., de Ruiter, J. & Bezar, H. 2004. Fodder oats in New Zeal<strong>and</strong> <strong>and</strong><br />

Australia – history, production <strong>and</strong> potential. pp. 153–177, in: Suttie & Reynolds,<br />

2004, q.v.<br />

Batello, C., Marzot, M. & Touré, A.H. 2004. The Future is an Ancient Lake:<br />

Traditional knowledge, biodiversity <strong>and</strong> genetic resources for food <strong>and</strong> agriculture<br />

in Lake Chad Basin ecosystems . FAO, Rome, Italy.


494<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Bogdan, A.V. 1977. Tropical pasture <strong>and</strong> fodder plants. London, UK: Longmans.<br />

474 p.<br />

Buringh, P. & Dudal, R. 1987. Agricultural l<strong>and</strong> use in space <strong>and</strong> time. In: M.G.<br />

Wolman <strong>and</strong> F.G.A. Fournier (eds). SCOPE vol. 32. Chichester, UK: John Wiley<br />

<strong>and</strong> Sons.<br />

Chaouki, A.F., Chakroun, M., Allagui, M.B. & Sbeita, A. 2004. Fodder oats in <strong>the</strong><br />

Maghreb. pp. 53–91, in: Suttie & Reynolds, 2004, q.v.<br />

Dolberg, F. & Finlayson, P. 1995. Better feed for animals: more food for people.<br />

<strong>World</strong> Animal Review, No.82.<br />

FAO. 1993. Key aspects <strong>of</strong> strategies for sustainable development <strong>of</strong> dryl<strong>and</strong>s.<br />

FAO, Rome, Italy. 60 p.<br />

Fraser, J. & McCartney, D. 2004. Fodder Oats in North America. pp. 19–36, in:<br />

Suttie & Reynolds, 2004, q.v.<br />

Hu, Z. & Zhang, D. 2003. China ’s pasture resources . pp. 81–113, in: Suttie &<br />

Reynolds, 2003, q.v.<br />

t’Mannetje, L. 2000. Silage making in <strong>the</strong> tropics with particular emphasis on<br />

smallholders. FAO Plant Production <strong>and</strong> Protection Paper, No. 161. 180 p.<br />

Shu, W. 2003. Fodder oats in China : an overview. pp. 123–144, in: Suttie &<br />

Reynolds, 2004, q.v.<br />

Simpson, J. R. & Ou Li. 1996. Feasibility analysis for development <strong>of</strong> Nor<strong>the</strong>rn<br />

China ’s beef industry <strong>and</strong> grazing l<strong>and</strong>s . Journal <strong>of</strong> Range Management, 49: 560–<br />

564.<br />

Suttie, J.M. 2000. Hay <strong>and</strong> straw conservation for small-scale farming <strong>and</strong> pastoral<br />

conditions. FAO Plant Production <strong>and</strong> Protection Series, No. 29. 303 p.<br />

Suttie, J.M. & Reynolds, S.G. (eds). 2003. Transhumant grazing systems in temperate<br />

Asia. FAO Plant Production <strong>and</strong> Protection Series, No. 31. 251 p.<br />

Suttie, J.M. & Reynolds, S.G. (eds). 2004. Fodder oats: a world overview. FAO<br />

Plant Production <strong>and</strong> Protection Series, No. 33. 251 p.<br />

Scottish Executive. 2003. The Muirburn Code. See: http://www.scotl<strong>and</strong>.gov.<br />

uk/library3/environment/mbcd-00.asp<br />

The Times. 2004. No tourists say nomads. Travel Section, The Times (London).<br />

p. 2. 20 November 2004.<br />

Wang, W.L. 2003. Studies on traditional transhumance <strong>and</strong> a system where herders<br />

return to settled winter bases in Burjin county, Altai Prefecture, Xinjiang ,<br />

China . pp. 115–141, in: Suttie & Reynolds, 2003, q.v.


Index 495<br />

A<br />

Acacia spp. 31, 34, 36, 38, 49, 97, 115,<br />

355, 356, 358, 359, 362, 365, 372,<br />

420, 444, 445, 449, 454, 472<br />

aneura 358<br />

cambagei 362<br />

harpophylla 355, 362, 372<br />

mellifera 97, 115<br />

modesta 445<br />

nilotica 358, 359, 365, 449, 472<br />

Acaena spp. 141<br />

Achillea spp. 389, 402, 454<br />

fragrantissima 454<br />

millefolium 389, 402<br />

Achna<strong>the</strong>rum spp. 317, 319, 442<br />

hookeri 317<br />

splendens 319, 442<br />

Aconitum spp. 312, 316<br />

Adesmia spp. 134, 169, 179, 181, 201,<br />

208, 401<br />

bicolor 181, 201, 208<br />

campestris 134, 401<br />

Aeschynomene 199, 372<br />

americana 372<br />

falcata 199<br />

Afghanistan 434, 443, 444, 446, 447,<br />

485<br />

Agave spp. 107, 109<br />

americana 107, 109<br />

Agropyron spp. 15, 135, 233, 243, 277,<br />

282, 313, 383, 387, 388, 389, 390,<br />

393, 395, 397, 399, 401, 402, 403,<br />

406, 408, 410, 412, 433<br />

cristatum 243, 277, 282, 313, 411<br />

dasystachum 233<br />

desertorum 406, 410<br />

elongatum 433<br />

magellanicum 135<br />

pectiniforme 387, 388, 397, 399, 401,<br />

410, 412<br />

racemosum 387, 389, 402, 408, 410<br />

repens 383, 387, 399, 401, 402, 410<br />

Index<br />

sibiricum 387, 393, 399, 401, 410<br />

smithii 234, 243<br />

Agrostis spp. 135, 179, 203, 316, 389,<br />

401, 442, 443, 446<br />

alba 389, 401<br />

gigantea 443<br />

micrantha 446<br />

tenuis 135<br />

Agrotourism 122, 154, 210<br />

Aimag 270, 273, 274, 277, 279, 280, 281,<br />

289, 290, 291, 292, 295, 303<br />

Airag 287, 288<br />

Ajania spp. 314, 441<br />

fruticulosa 317, 441<br />

Algeria 417, 419<br />

Alhagi 401<br />

Allium spp. 314<br />

polyrhizum 277<br />

Aloe spp. 97, 98<br />

Alopecurus spp. 389, 390, 401, 406<br />

pratensis 389, 391, 406<br />

Amygdalus nana 396<br />

Anabasis spp. 277, 442, 453, 454<br />

brevifolia 277<br />

salsa 442<br />

syriaca 453<br />

Anaphalis spp. 312<br />

Andropogon spp. 174, 176, 178, 181,<br />

182, 196, 198, 199, 202, 203, 230,<br />

421, 426, 446<br />

gayanus 421<br />

gerardii 230<br />

lateralis 174, 176, 182, 196, 198, 199,<br />

203<br />

selloanus 199, 426<br />

semiberbis 426<br />

ternatus 181, 202<br />

tristis 446<br />

Androsace spp. 277, 312, 314<br />

tapete 314<br />

villosa 277


496<br />

Anemone spp. 312<br />

ANPP 133, 134, 135, 142, 145, 146, 190,<br />

234<br />

An<strong>the</strong>phora<br />

pubescens: 109<br />

Anthriscus silvestris 406<br />

Apluda mutica 446<br />

Arenaria musciformis 314<br />

Argan 418<br />

Argania spinosa 418<br />

Argentina 427, 428, 429, 432<br />

Aristida spp. 31, 33, 34, 94, 98, 176, 181,<br />

196, 198, 203, 234, 310, 315, 355,<br />

356, 358, 359, 420, 425, 426, 445<br />

congesta 98<br />

contorta 358<br />

diffusa 94<br />

fi lifolia 198<br />

jubata 196<br />

junciformis 94<br />

latifolia 359<br />

murina 181<br />

mutabilis 420<br />

rufescens 425, 426<br />

triseta 310, 315<br />

uruguayensis 181<br />

venustula 176, 181<br />

wrightii 234<br />

Artemisia spp. 11, 233, 277, 282, 310,<br />

314, 315, 316, 317, 389, 397, 399,<br />

401, 402, 404, 406, 409, 418, 441,<br />

442, 444, 446, 453, 454<br />

absinthium 402<br />

arenaria 399<br />

astrachanica 399, 409<br />

austriaca 389, 402, 404<br />

caespitosa 277<br />

campestris 401, 402<br />

commutata 282<br />

dracunculus 283, 401<br />

frigida 233, 277, 402, 441<br />

glauca 282<br />

halodendron 441<br />

herba-alba 418, 445, 453<br />

intramongolica 441<br />

lacenata 282<br />

lercheana 409<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

maikara 445<br />

maritima 445<br />

monogyna 399, 401<br />

ordosica 441<br />

paucifl ora 397, 409<br />

pontica 401<br />

sieversiana 402<br />

soongarica 442<br />

stracheyi 317, 442<br />

turanica 445<br />

vulgaris 446<br />

webbiana 315<br />

wellbyi 310, 442<br />

xerophytica 277<br />

Arundinella spp. 442, 446, 448<br />

bengalensis 446<br />

hirta 442<br />

hookeri 446<br />

nepalensis 446<br />

setosa 442<br />

Ash 230<br />

Aspen 230<br />

Aster alpinus 277<br />

Astragalus spp. 277, 310, 312, 314, 433,<br />

445, 453<br />

malcolmii 310<br />

Astrebla spp. 359, 364<br />

Atriplex spp. 107, 109, 136, 148, 149,<br />

164, 399<br />

lampa 149<br />

leucoclada 453<br />

mueleri 109<br />

nummalaria 107, 109<br />

semibaccata 109<br />

verrucifera 399<br />

Australia 9, 11, 15, 405<br />

Avena spp. 278, 371, 402, 418<br />

fatua 402<br />

sativa 278<br />

Axonopus spp. 174, 176, 178, 181, 183,<br />

198, 203, 367, 426, 427<br />

affi nis 181, 198, 203, 367, 427<br />

argentinus 174, 176, 181<br />

canescens 426<br />

compressus 181, 183<br />

purpusii 426, 427<br />

Azorella caespitosa 134


Index 497<br />

B<br />

Baccharis spp. 175, 182, 199, 202<br />

articulata 175<br />

coridifolia 175, 182, 202<br />

dracunculifolia 175<br />

spicata 175<br />

trimera 175, 199, 202<br />

Badia 453, 454<br />

Syrian 451–3<br />

Jordan 453–5<br />

Balanites aegyptiaca 420<br />

Balochistan 444, 447<br />

Barkhan dunes 397<br />

Bassia spp. 389<br />

Becium burchellianum 98<br />

Beckmannia spp. 399<br />

Berberis spp. 134, 166, 315, 317, 446<br />

buxifolia 135<br />

heterophylla 134, 166<br />

Berteroa spp. 402<br />

Betula spp. 281<br />

Bhutan 443<br />

Biodiversity 65, 148, 369<br />

Bocoenosis 390<br />

Biogeocoenosis 390<br />

Biomes<br />

Fynbos 89, 93, 99, 100<br />

Nama-karoo 77, 78, 79, 85, 88, 93, 97,<br />

98, 109, 112<br />

succulent karoo 99, 112<br />

Bison 227, 228, 229, 245<br />

Blue grama 231, 234, 242, 243, 245<br />

Blysmus sinocompressus 443<br />

Bod 274, 288, 289<br />

Boerhavia spp. 359<br />

Bolivia 427, 429<br />

Bos<br />

gaurus 448<br />

grunniens (See also Yak) 310, 321<br />

indicus 86, 351, 441<br />

taurus 351, 424, 441<br />

taurus brachyceros 424<br />

Boscia spp. 98, 420<br />

oleoides 98<br />

senegalensis 420<br />

Bothriochloa spp. 33, 38, 178, 181, 202,<br />

355, 356, 359, 431, 442, 445<br />

decipiens 356<br />

ewartiana 356<br />

intermedia 445<br />

ischaemum 442<br />

laguroides 181, 202, 431446<br />

pertusa 355, 446<br />

Bouteloua spp. 178, 181, 231, 233, 234,<br />

240<br />

curtipendula 234, 240<br />

gracilis 231, 233<br />

megapotamica 181<br />

Brachiaria spp. 31, 114, 362, 363, 373<br />

decumbens 446<br />

mutica 362, 363, 373<br />

Brachyachne convergens 359<br />

Brachyclados caespitosus 134<br />

Brachypodium sylvaticum 310, 313, 443<br />

Brassica campestris 402<br />

Brazil 427, 429<br />

Brigalow – see Acacia harpophylla<br />

Briza spp. 178, 431<br />

subaristata 431<br />

Bromus spp. 135, 178, 221, 249, 283,<br />

310, 316, 357, 387, 389, 395, 399,<br />

400, 401, 402, 410, 418, 433, 443,<br />

446<br />

catharticus 433<br />

erectus 410<br />

himalaicus 310, 446<br />

inermis 283, 387, 389, 399, 400, 401,<br />

402, 410, 443<br />

japonicus 221, 249<br />

setifolius 135<br />

tectorum 402<br />

Browse 11<br />

Buchloe dactyloides 231<br />

Buffalo 9, 441, 448<br />

Burkina Faso 420<br />

Bush 13, 20, 23, 25, 30, 31, 34, 46 49, 59,<br />

60, 92, 109, 112, 471<br />

clearing 2, 429, 464, 465, 471, 480<br />

control 451, 465, 471–2, 473<br />

encroachment 60, 430, 464, 465, 471


498<br />

C<br />

C3 grasses 14, 84, 96, 97, 171, 178, 190,<br />

201, 208, 221, 234, 240, 430, 434<br />

C4 grasses 14, 84, 96, 171, 178, 184, 190,<br />

221, 234, 240, 365, 428, 430, 434<br />

Calamagrostis spp. 179, 283, 313, 395,<br />

401, 402, 406, 443<br />

epidois 283<br />

epigeios 395, 401, 402, 443<br />

langsdorffi i 406<br />

Cal<strong>and</strong>rinia spp. 358<br />

Calligonum spp. 316<br />

Calluna spp. 11, 472<br />

Camel 9, 14, 19, 38, 39, 40, 265, 274,<br />

277, 283, 284, 286, 287, 289, 295,<br />

296, 297, 299, 323, 325, 348, 423,<br />

436, 441, 450, 454, 467, 470, 475<br />

Bactrian 286<br />

Camelina spp. 402<br />

campos limpios 174<br />

campos sucios 182<br />

Canis lupus 311<br />

Cannabis sativa 402<br />

capybaras 173<br />

Caragana spp. 310, 313, 317, 396, 446<br />

frutex 396<br />

jubata 313<br />

versicolar 310, 317<br />

Carex spp. 134, 135, 232, 245, 277, 281,<br />

282, 312, 314, 316, 317, 319, 389,<br />

399, 400, 401, 442, 443, 446<br />

<strong>and</strong>ina 135<br />

appendiculata 443<br />

argentina 135<br />

atr<strong>of</strong>usca 312, 443<br />

colchica 399<br />

duriuscula 277, 282, 443<br />

eleocharis 233<br />

fi lifolia 233, 245<br />

meyeriana 443<br />

moorcr<strong>of</strong>tii 314, 316, 317, 319, 442<br />

muliensis 443<br />

nivalis 443<br />

obtusa 232<br />

obtusata 232<br />

pediformis 277, 282<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

pennsylvanica 234<br />

schreberi 389<br />

stenocarpa 443<br />

stenophylla 443<br />

Carrying capacity 82, 87, 90, 102, 104,<br />

109, 129, 138, 141–2, 146, 149,<br />

150, 153, 177, 194, 195, 197, 209,<br />

318, 427<br />

Carum carvi 389<br />

Cashmere 274, 284, 287, 323, 475<br />

Cassia spp. 356, 358, 365, 431<br />

Casuarina spp. 356<br />

Cattle 9, 14, 15, 28, 29, 37, 38, 39, 40, 48,<br />

49, 50, 51, 53, 54, 79, 84, 86, 87,<br />

90, 91, 92, 97, 98, 104, 110, 127,<br />

136, 173, 174, 178, 186, 187, 188,<br />

207, 210, 228, 229, 239, 243, 244,<br />

277–8, 283, 284, 287, 288, 289,<br />

291, 296, 347, 352, 359, 417, 424,<br />

435, 441, 450, 451, 456<br />

hybrids 284, 285, 287<br />

Sahelian 422, 424<br />

trypanotolerant 423–4<br />

Cattle breeds<br />

Afrikaner 87, 90<br />

Bonsmara 87<br />

Brahman 90<br />

Drakensberger 87<br />

Kouri 423-4<br />

Simmentaler 90<br />

zebu 424, 475<br />

Cenchrus spp. 31, 33, 34, 38, 109, 113,<br />

114, 351, 356, 360, 362, 373, 420,<br />

448<br />

bifl orus 34, 420<br />

ciliaris 31, 34, 109, 113, 351, 356, 360,<br />

362, 373<br />

Central Asia 11, 16, 385<br />

Centrosema pascuorum 372<br />

Ceratocarpus arenarius 389<br />

Ceratoides spp. 310, 314, 316, 317, 319,<br />

442<br />

compacta 310, 314, 316, 317, 319, 442<br />

latens 317, 442<br />

Ceratostigma spp. 310, 315<br />

griffi thii 310, 315<br />

Chad 420, 424


Index 499<br />

Chamaecrista spp. 199, 372<br />

repens 199<br />

rotundifolia 372<br />

Chenopodium album 402<br />

Chevreulia sarmentosa 182<br />

Chiliotrichum diffusum 134<br />

China 436–8, 441–3<br />

Chloris spp. 31, 34, 35, 44, 45, 62, 178,<br />

181, 356, 357, 358, 362, 434<br />

acicularis 356<br />

castilloniana 434<br />

gayana 35, 44, 45, 62, 356, 362<br />

gr<strong>and</strong>ifl ora 181<br />

roxburghiana 31, 34, 62<br />

truncata 356, 358<br />

Chromolaena odorata 366<br />

Chrysopogon spp. 31, 33, 34, 355, 356,<br />

359, 445, 446<br />

aucheri 34<br />

fallax 355, 356, 359<br />

gryllus 446<br />

plumulosus 34<br />

Chuquiraga spp. 133, 134, 136, 141<br />

aurea 134<br />

avellanedae 133, 134, 141<br />

kingii 134<br />

Cirsium arvense 402<br />

Cleistogenes squarrosa 277, 441<br />

Climax 428, 448, 453<br />

Clitoria ternatea 372<br />

Coelorachis selloana 174, 175, 181, 196,<br />

199, 203<br />

Collective 381, 383, 413<br />

Collectivization 274, 328, 466, 477<br />

Colleguaya integerrima 133, 134<br />

Combretum nigricans 420<br />

Commiphora spp. 31, 34, 49. 420<br />

africana 420<br />

Conservation Reserve Programme 236<br />

Copernica alba 429, 430<br />

Cornulaca monacantha 420<br />

Cortia depressa 446<br />

Crassulacean acid metabolism plants 97<br />

Crassula spp. 97, 98, 99<br />

Crepis tectorum 402<br />

Crop 21, 37, 44–5, 65, 109<br />

arable 383–4, 411–2, 413, 443<br />

clearing for 418–9, 421, 430, 452<br />

encroachment 430<br />

fallow 390, 393–4, 401–3, 408, 411,<br />

418–9, 421, 424, 458<br />

residues 92, 100, 107, 110, 417–9, 437,<br />

452<br />

-pasture rotation 351, 371, 405, 411,<br />

413<br />

residues 412<br />

straw 419, 447<br />

stubble 314, 315, 419, 449<br />

Crotalaria spp. 431<br />

Crude protein 106, 196<br />

Cryptostegia gr<strong>and</strong>ifl ora 365, 366<br />

Cussonia spicata 98<br />

Cymbopogon spp. 98, 445, 446<br />

jwarancusa 445<br />

plurinodis 98<br />

schoenanthus 446<br />

Cynodon spp. 36, 114, 426, 446<br />

dactylon 36, 426, 446<br />

Cytisus spp. 396<br />

D<br />

Dactylis spp. 108, 179, 310, 360, 419,<br />

433, 446<br />

glomerata 108, 360, 419, 433, 446<br />

Dactyloctenium spp. 356, 358, 359<br />

radulans 356, 358<br />

Daily Liveweight Gain 194, 196, 197<br />

Danthonia spp. 356, 357, 358, 364, 446<br />

caespitosa 358<br />

nudifl ora 357<br />

pallida 356<br />

Decision Support Systems 111, 122, 153<br />

Deer 11, 145, 173, 270, 310, 347<br />

Deferred grazing 188, 198<br />

Defi ciency<br />

mineral 186, 209<br />

Degradation 35, 40, 49, 54, 55, 56, 98,<br />

112–4, 127, 139, 141, 142, 147,<br />

150, 315, 319, 474<br />

Delphinium spp. 316<br />

Deschampsia spp. 135, 313, 401<br />

cespitosa 313<br />

elegantula 135


500<br />

fl exuosa 135, 313<br />

Desertifi cation 54–6, 125, 130, 138, 147,<br />

149, 315<br />

Deserts 1, 9, 15, 31, 54–6, 165<br />

alpine 446–8, 456<br />

badia 451–3<br />

botanical composition 15<br />

Gobi 266, 268, 270, 276, 277, 279, 286,<br />

294, 295, 297, 435<br />

semi- 3, 7, 11, 13, 14, 15, 21, 23, 25, 31,<br />

34, 131–6, 142, 146, 147, 148, 269,<br />

277, 420, 43–5, 444, 451, 453-4<br />

temperate 427, 430, 441, 442, 449<br />

Desmanthus spp. 179, 207, 431<br />

Desmodium spp. 105, 174, 179, 182, 196,<br />

198, 199, 203, 371, 446<br />

incanum 174, 182, 196, 198, 199, 203<br />

Deyeuxia spp. 316, 443<br />

angustifolia 443<br />

arundinacea 443<br />

Dichanthium spp. 355, 359, 448<br />

Dichelachne spp. 356<br />

Dichondra microcalyx 181, 182<br />

Dichrostachys cinerea 115<br />

Dicranopteris dichotoma 442<br />

Digestibility 183, 185, 202<br />

Digitaria spp. 33, 34, 97, 105, 175, 178,<br />

355, 356, 367<br />

didactyla 355, 367<br />

eriantha 97, 105<br />

saltensis 175<br />

Diheteropogon spp. 94, 421<br />

amplectans 94<br />

hagerupii 421<br />

Distichlis spp. 178<br />

DM Accumulation Rate 193, 194, 195,<br />

197, 205<br />

Dodonea spp. 365<br />

Dracocephalum heterophyllum 314<br />

Drought 19, 38, 40, 55, 83, 01, 101, 107,<br />

108–9, 127, 142, 145, 150, 180,<br />

210, 245, 293, 301, 332, 345, 350,<br />

358, 361, 421, 467<br />

Dry weight rank technique 392<br />

Duthiea brachypodium 310<br />

E<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

eastern Africa 9, 13, 19–65, 414, 463,<br />

464, 469, 477, 487<br />

eastern red cedar 230<br />

Echinochloa spp. 363, 373, 420, 425<br />

polystachya 363, 373<br />

stagnina 420<br />

Ecosystem dynamics 55, 248, 309, 335<br />

Ecotourism 63, 77, 88, 89, 97, 100, 112<br />

Elaeagnus spp. 401<br />

Eleusine spp. 37, 178<br />

fl occifolia 37<br />

Elionurus c<strong>and</strong>idus 199, 203<br />

Elymus spp. 135, 147, 149, 277, 283, 310,<br />

312, 313, 315, 316, 446<br />

arenarius 149<br />

chinensis 277<br />

nutans 310, 312, 313, 315, 446<br />

patagonicus 135<br />

sabulosus 149<br />

tangutorum 310<br />

turczanovii 283<br />

Empetrum rubrum 135<br />

Enchylaena spp. 357<br />

Enneapogon spp. 96, 356, 358<br />

Enteropogon spp. 356<br />

Environment 468<br />

Ephedra spp. 136, 316, 442, 445<br />

przewalskii 442<br />

Equus kiang 307, 310<br />

Eragrostis spp. 94, 96, 113, 178, 181,<br />

182, 199, 356, 358, 359, 442, 446<br />

curvula 94, 113<br />

lehmanniana 94<br />

neesii 181, 199<br />

obtusa 94<br />

pilosa 442, 446<br />

purpurascens 182<br />

Eremophila spp. 228, 356, 358<br />

Eremopogon delavayi 442<br />

Eriachne spp. 356, 358<br />

Erianthus angustifolius 182<br />

Erica spp. 11<br />

Erigeron canadensis 402<br />

Eromophila spp. 365<br />

Eryngium spp. 182, 196, 199


Index 501<br />

ciliatum 199<br />

elegans 199<br />

horridum 196, 199<br />

nudicaule 182<br />

Euagropyron spp. 399, 401, 403, 409,<br />

410<br />

Eucalyptus spp. 356, 359<br />

Euclea spp. 97<br />

Eulalia spp. 359, 442<br />

aurea 359<br />

phaeothrix 442<br />

quadrinervis 442<br />

Eupatorium spp. 445, 446<br />

adenophorum 446<br />

buniifolium 175<br />

Euphorbia spp. 97, 98, 99, 221, 249, 250,<br />

389<br />

bothae 98<br />

coerulescens 98<br />

esula 221, 249, 250<br />

ledienii 98<br />

seguieriana 389<br />

tetragona 98<br />

triangularis 98<br />

virgata 389<br />

Eurotia ceratoides 277<br />

Eustachys spp. 98, 181<br />

bahiensis 181<br />

mutica 98<br />

Exo<strong>the</strong>ca spp. 31, 36<br />

abyssinica 36<br />

F<br />

Falcaria vulgaris 402<br />

Farming<br />

extensive 2, 3, 9, 13–6, 29, 31, 39, 45,<br />

46, 63, 237, 348, 350, 425, 427,<br />

428, 430, 454<br />

fallow 15, 37, 44, 418, 419, 458<br />

ley 351, 371–2<br />

grassl<strong>and</strong> 429, 430–1, 432–3, 435, 437,<br />

441, 443<br />

Felis lynx 311<br />

Fences 13, 46, 57, 58, 88, 90, 91, 104,<br />

109, 112, 114, 116, 129, 437, 464,<br />

473, 486<br />

Festuca spp. 15, 108, 133, 134, 135, 141,<br />

144, 179, 232, 277, 282, 310, 313,<br />

316, 317, 319, 387, 388, 389, 393,<br />

395, 396, 397, 401, 402, 403, 406,<br />

408, 409, 410, 419, 433, 441, 442,<br />

443, 446<br />

argentina 133, 134<br />

arundinacea 108, 411, 419, 433<br />

gracillima 135, 141, 165<br />

lenensis 277, 282<br />

magellanica 135<br />

ovina 310, 313, 317, 401, 441, 442, 443<br />

pallescens 134, 135, 141<br />

pyrogea 135<br />

rubra 310, 313, 314, 389, 404<br />

scabrella 232<br />

sulcata 15, 387, 388, 389, 393, 395, 396,<br />

397, 401, 402, 403, 406, 408, 409,<br />

410<br />

Filifolium sibiricum 441<br />

Fire 1, 2, 13, 34, 35, 46, 52, 57, 58, 86,<br />

92, 95, 96, 105, 110, 111, 112, 144,<br />

145, 182, 209, 230, 244, 245, 294,<br />

348, 357, 359, 366, 367, 386, 406,<br />

408, 430, 465, 469, 471, 472, 473,<br />

493<br />

bush, 425, 465, 471<br />

controlled burn 142, 173, 210, 211,<br />

241, 244, 294, 427, 430, 465, 472,<br />

493<br />

uncontrolled burn 428, 465<br />

Flechilla 176<br />

Flechillares 176, 177<br />

Flooding Pampas 431, 432<br />

Floramientos 176<br />

Fodder 7, 8, 11, 13, 16, 100, 105–9, 116,<br />

274, 279, 384, 478, 481, 484<br />

crops 308, 315, 352–3, 364, 365, 368,<br />

384, 409, 412–3, 414, 419, 459,<br />

419, 450, 468–9, 480–6, 487<br />

for exceptional circumstances 84, 109,<br />

116, 481<br />

irrigated 318, 319, 452, 459, 481–5<br />

North Africa 419<br />

sown 387, 403, 411, 413, 419, 465,<br />

480-6<br />

Foggage 105, 106


502<br />

Forage <strong>of</strong>fer (FO) 171, 193, 194, 195,<br />

196, 197, 198, 199, 204, 205, 209,<br />

forage production determinant<br />

102<br />

Forest 230, 245–6, 268, 395<br />

open 421<br />

Frankenia spp. 134<br />

Fulani 421–2<br />

Fynbos 89, 99, 100<br />

G<br />

Galium spp. 233, 282, 283<br />

boreale 233, 283<br />

verum 282<br />

Game 88, 100, 112,173, 347, 469<br />

farms 343<br />

game harvesting 210<br />

reserves 38, 41, 42, 43, 47, 49, 57, 58,<br />

207, 464, 487, 489, 493<br />

Gasteria spp. 99<br />

Gaudinia fragilis 202<br />

Gazelles 270, 295, 310 453<br />

Gene banks 149<br />

Gentiana spp. 312<br />

Geographical Information Systems 29,<br />

111, 153, 154, 251<br />

Geranium pratensis 283, 389<br />

Ghana 420<br />

Glyceria maxima 373<br />

Glycyrrhiza spp. 401<br />

Goats 9, 14, 38, 39, 87, 88, 90, 91, 96, 97,<br />

98, 100, 110, 127, 285, 287, 289,<br />

290, 305, 306, 323, 325, 418, 441,<br />

452, 455, 472<br />

cashmere 274, 284, 287, 323, 475<br />

feral 343, 347, 424<br />

Jordan 453–4<br />

Madagascar 424–5<br />

milk 323<br />

trypanotolerant 423–4<br />

Turkey 456<br />

Goat breeds<br />

Angora 90,154<br />

Boergoat 90<br />

chèvre rouge de Maradi 423<br />

Red Sokoto 423<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Sahelian 423–4<br />

Shami 453<br />

Gopher 227<br />

Gran Chaco 427<br />

<strong>Grassl<strong>and</strong>s</strong> 13, 16, 58, 78-82, 85, 86, 88,<br />

92, 94–8, 102–3, 105, 110, 113,<br />

131, 175, 177, 178, 183, 184, 185,<br />

190, 195, 199, 221, 226, 230, 237,<br />

247, 248<br />

allocation 146, 150, 152, 297, 328<br />

animal production from 195<br />

Argentina 427–9, 432<br />

biodiversity 143, 148, 182, 190, 211,<br />

212, 306, 309, 336, 369, 488, 491,<br />

493<br />

Brazil 427, 429<br />

carbon sequestration 205<br />

carrying capacity 129, 138, 141–2, 146,<br />

149, 150, 153, 177, 197, 209, 309,<br />

318, 392, 427, 430, 468, 477, 492<br />

central North America 221, 232, 245<br />

Central plains 228<br />

China 436–7, 441–3<br />

classifi cation 209, 312–9, 385–6,<br />

387–91, 392, 394, 396–7, 399<br />

communal 435, 464, 466<br />

condition 143, 145, 149, 188, 193, 196,<br />

198, 216, 237, 316, 330, 331, 335,<br />

336, 391–3, 464–9, 477, 491<br />

conservation 139, 148, 333, 336, 488,<br />

491, 493<br />

degradation 127, 139, 141, 142, 147,<br />

150, 198, 210, 313, 320, 330, 333,<br />

368, 408, 429, 443, 448, 452, 454,<br />

455, 464, 467–9, 470, 474, 477,<br />

491, 492<br />

desert 185<br />

desert steppe 268, 269, 277, 316, 317,<br />

318<br />

development 245, 251, 392–3, 409,<br />

413, 432, 455<br />

evaluation 139, 140, 149, 150, 152, 193<br />

extensive 265, 283, 297, 298, 300, 348,<br />

350, 445, 456<br />

fallow 390, 393–4, 401–3, 408, 411,<br />

418–9, 424, 457, 458<br />

fertilization 242, 243, 432


Index 503<br />

fl echillares 176, 177<br />

fl ood meadow 395, 397, 401<br />

fl ooding pampa 465<br />

forest steppe 277, 395<br />

Gran Chaco 465<br />

high elevation 446<br />

High Plains Llanos 426<br />

improved 433, 437, 443<br />

India 448<br />

intensifi cation 403, 468, 492<br />

Jordan 453–4, 463, 470<br />

l<strong>and</strong>scape 144, 147, 309, 316, 324<br />

ley 371, 372<br />

Llanos 426–7, 463<br />

Madagascar 424–5<br />

malezales 174, 176, 177, 209, 216<br />

management 112–4, 241, 245, 246,<br />

251, 365–7, 369–2, 374, 383, 386,<br />

391–3, 405, 406, 408, 413, 425,<br />

427, 429, 430, 435, 455, 456, 458<br />

mid-grass 31, 34<br />

mixed-grass 221, 223, 224, 229, 230,<br />

235, 237, 244, 246, 247, 250<br />

monitoring 139, 145, 146, 147, 150,<br />

152, 154, 180, 276, 300, 332, 336,<br />

391–3<br />

Monte shrubl<strong>and</strong> 135, 433<br />

native 222, 236, 245, 249, 382–3, 387,<br />

403, 427, 428, 430<br />

North Africa 417–9, 465, 479, 481<br />

Pajonal 176<br />

Pakistan 449–50<br />

Pampas 430–3, 463, 465<br />

Patagonia 463, 465, 469, 477, 480, 482,<br />

486<br />

plant communities 131, 141, 148, 311,<br />

316, 317<br />

production systems 175, 178, 186, 189,<br />

190,237, 300, 350, 370, 413<br />

productivity 138, 139, 144, 146, 149,<br />

181, 186, 187, 190, 197, 199, 206,<br />

207–8, 209, 210, 221, 234, 235,<br />

241, 309, 315, 317, 318, 319, 326,<br />

332, 333, 335, 336, 351, 352, 363,<br />

370, 374, 391, 393–4, 402, 431,<br />

432, 466, 470, 476, 479<br />

rehabilitation 149, 368, 435, 474<br />

reseeding 443, 473–4, 481<br />

resource issues 368, 374, 383<br />

Sahel 420–1<br />

semi-arid 122, 131, 133, 135, 136, 143,<br />

148, 269, 271, 420, 429, 435, 444,<br />

453–4<br />

short-grass 31, 150, 171, 174, 176, 177,<br />

221, 222, 224, 225, 228, 231, 234,<br />

235, 236, 237, 245, 248, 249, 356,<br />

358<br />

subtropical 184, 353, 355, 364<br />

Sudanian 421, 454<br />

Sudano-Guinean 421<br />

sustainability 130, 138, 139, 142, 143,<br />

154, 193, 197, 199, 208, 210, 211,<br />

265, 298, 302, 307, 319, 331, 332,<br />

334, 335, 336, 361, 366, 367, 369,<br />

373, 374, 393, 413, 463, 464, 479,<br />

491, 493<br />

Syrian 451<br />

tall-grass 31, 35, 62, 221, 222, 223, 225,<br />

230, 235, 236, 237, 240, 241, 244,<br />

248, 353, 354, 355, 356, 465<br />

treeless 122, 131<br />

Turkey 455-9<br />

type 417, 427, 428, 429, 434, 435, 441,<br />

444<br />

types 424, 426, 429, 434, 441, 444, 446,<br />

448, 453<br />

West Africa 419, 421<br />

xerophytic mid-grass 357<br />

Grazing 77, 85, 86, 88, 89, 90, 91, 92, 98,<br />

100, 101, 102, 104, 105–6, 109,<br />

111, 112, 114, 115, 174, 175, 176,<br />

179, 180, 182, 188, 189, 190, 191,<br />

194, 195, 196, 197, 198, 199, 201,<br />

203, 204, 205, 206, 207, 208, 209,<br />

210, 211, 221, 228, 229, 237, 239,<br />

240, 244, 245, 248, 249, 250, 251,<br />

265, 267–70, 273, 274, 276, 277,<br />

281, 282, 283, 288, 289, 297, 298,<br />

300, 301, 302, 307, 313–5, 317,<br />

319, 320, 331, 332–6, 383–4, 388,<br />

395, 403–5, 408, 411–3, 425, 430,<br />

435–436, 437, 441, 443–4, 446,<br />

449, 451–3, 454–6, 458<br />

cell 367


504<br />

continuous 53, 103, 104, 105, 142, 152,<br />

196, 207, 210, 211, 241, 242, 367,<br />

403, 405<br />

distribution 241<br />

High Performance 105<br />

High Utilization 105<br />

Holistic Resource Management 105,<br />

115, 119<br />

improvement 241<br />

l<strong>and</strong> 1, 2, 3, 4, 9, 10, 11–16, 19, 21, 24,<br />

37, 41, 43, 44, 46, 52, 53, 305, 307,<br />

326, 328, 329, 331, 336<br />

management 210, 211, 241, 430<br />

pressure 33, 34, 35, 52, 53, 55, 127,<br />

195, 196, 197, 198, 199, 288, 289,<br />

300, 348, 367, 369, 451, 456, 493<br />

rights 10, 14, 15, 42, 43, 51, 283, 291,<br />

298, 299, 300, 302, 305, 327, 413,<br />

464–9, 486–7, 492<br />

rotational 40, 77, 102, 104, 105, 152,<br />

202, 207, 208, 241, 368, 405<br />

short-duration 242, 367<br />

system 9, 31, 40, 45, 46, 52, 56, 152,<br />

241, 242, 251, 441, 443, 449, 454<br />

time-control 367<br />

Grindelia spp. 141, 148<br />

chiloensis 141<br />

Ground squirrel 227<br />

Guanacos 121, 127, 154<br />

Guiera senegalensis 420<br />

Gypsophila spp. 402<br />

H<br />

Haloxylon spp. 316, 442<br />

erinaceum 442<br />

persicum 442<br />

Hay 8, 279, 295, 384, 395, 402<br />

fi elds 405, 459<br />

haymaking 278, 279, 281–3, 291, 301,<br />

384, 397, 405<br />

meadow 282, 384, 399<br />

oat 451<br />

rights 279, 291, 296, 298, 383, 414<br />

yields 281, 282, 395, 397, 399, 401,<br />

402, 406, 410<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Hedysarum coronarium 419<br />

Helictotrichon spp. 313, 316<br />

tibeticum 313<br />

Helipterum spp. 358<br />

Herding 14, 91, 302, 403–5<br />

brigades 275, 294<br />

communities 421, 426, 458<br />

extensive 179, 186, 187, 313, 326, 333,<br />

424-5, 430, 445, 456<br />

group 327, 328, 336, 383<br />

mobile/mobility 10, 15, 305, 327, 328,<br />

33–4, 409, 434<br />

risk 15, 292, 294, 301, 305, 332–4<br />

systems 421, 435–6, 441<br />

transhumance 3, 8, 9, 10, 14, 15, 273,<br />

291–2, 296, 305, 323, 330, 332,<br />

418, 419, 421–2, 446, 449, 456<br />

Herd composition 289, 325<br />

Heteropappus altaicus 314<br />

Heteropogon spp. 31, 33, 34, 355, 425,<br />

426, 442, 445, 446<br />

contortus 34, 355, 425, 426, 442, 446<br />

Hilaria jamesii 234<br />

Himalaya 443–4<br />

Hindu Kush 443–4<br />

Hippocrepis spp. 418<br />

Hippophae spp. 446<br />

Holistic Resource Management 105,<br />

115, 119<br />

Hordeum leporinum 357<br />

Horses 316, 321–3, 325, 326, 437<br />

mares 287, 288, 296<br />

Hymenachne amplexicaulis 363, 373,<br />

427<br />

Hyparrhenia spp. 31, 35, 36, 38, 62, 94,<br />

425, 426<br />

dipl<strong>and</strong>ra 35<br />

fi lipendula 35<br />

hirta 35, 94<br />

rufa 35, 425, 426<br />

variabilis 426<br />

Hyperaemia spp. 421<br />

Hyper<strong>the</strong>lia 425, 426<br />

dissoluta 35, 425, 426


Index 505<br />

I<br />

Imperata spp. 3, 442, 445, 448<br />

cylindrica 3<br />

cylindrica var. major 442<br />

India 448–9<br />

Integrated Catchment Management 370<br />

Ipomoea spp. 359<br />

Iris lactea var. chinensis 443<br />

Iseilema spp. 359<br />

J<br />

Jackrabbit 227<br />

Jordan 16, 453–4<br />

Junellia tridens 134, 135<br />

Juniperus spp. 230, 315, 446<br />

ashei 230<br />

pinchoti 230<br />

virginiana 230<br />

K<br />

Kalidium spp. 316, 442<br />

schrenkianum 442<br />

Khainag 285, 287<br />

Karakoram 444<br />

Karakul 434, 435<br />

Kazakhstan 434–5<br />

Kobresia spp. 11, 277, 281, 312, 314, 315,<br />

317, 319, 320, 443, 446<br />

bellardii 277, 317, 443<br />

capillifolia 312, 443<br />

humilis 312, 443<br />

littledalei 312, 443<br />

pygmaea 312, 443<br />

royleana 313<br />

schoenoides 312<br />

setschwanensis 312<br />

tibetica 443<br />

Kochia prostrata 397, 399, 410<br />

Koeleria spp. 233, 245, 277, 282, 312,<br />

387, 389, 403, 446<br />

cristata 233, 282, 446<br />

gracilis 387, 389, 403<br />

litwinowii 313<br />

macrantha 245, 277<br />

Kolkhozy 383, 392<br />

Kroomie Trial 102<br />

Kyrgyzstan 16, 434–5<br />

L<br />

Lactuca spp. 402<br />

L<strong>and</strong><br />

degradation 35, 40, 54, 55, 58, 112,<br />

114, 152<br />

L<strong>and</strong>care movement 370<br />

L<strong>and</strong>sat TM 113, 146, 147, 153<br />

L<strong>and</strong> tenure 13, 40, 41, 42, 43, 45, 46, 50,<br />

64, 77, 79, 89, 96, 110, 128, 291,<br />

298, 327–8, 332–3, 343, 348, 464-9,<br />

486–7, 492<br />

access to l<strong>and</strong> 283<br />

changes in 435<br />

l<strong>and</strong> ownership 251, 273<br />

Madagascar 424–5<br />

Turkey 455<br />

Lannea acida 420, 421<br />

Lantana camara 472<br />

Lappula spp. 402<br />

Larix spp. 281<br />

Larrea spp. 136, 433<br />

cuneifolia 136, 433<br />

divaricata 136, 443<br />

nitida 136, 443<br />

Lasiurus spp. 448<br />

Lathyrus aphaca 418<br />

Leaf Appearance Rate 204<br />

Leaf Area Index 204, 205<br />

Leaf Expansion Rate 204<br />

Leaf Life Span 204, 205<br />

Leersia hex<strong>and</strong>ra 180, 427<br />

Legumes 2, 16, 105, 108, 207, 277, 409<br />

native 144, 175, 179, 182, 190, 196,<br />

199, 200, 360, 419<br />

pasture 240, 351, 353, 360–3, 364–73,<br />

374<br />

Legume decline 361, 365<br />

Leontodon spp. 389<br />

Leontopodium spp. 312, 314<br />

Leptocoryphium lanatum 426, 427<br />

Leptodermis sauranja 315<br />

Lespedeza sericea 106, 109<br />

Leucaena spp. 105, 109, 120, 372, 471<br />

leucocephala 105, 120, 372


506<br />

Leymus spp. 282, 319, 441, 442<br />

chinensis 282, 441, 442<br />

paboanus 319<br />

Ligularia spp. 316<br />

Liman meadow 386, 397, 399<br />

Liveweight gain 186, 189, 194–7, 199,<br />

201, 202, 203, 211<br />

Llanos 426–7<br />

Lolium spp. 108, 179, 208, 353, 360, 371,<br />

404, 418, 419, 432, 433, 482<br />

multifl orum 108, 208, 360, 404, 419,<br />

432, 433, 482<br />

perenne 108, 353, 360, 404, 419, 433<br />

rigidum 371, 418, 419<br />

Lonicera spp. 315, 316, 446<br />

spinosa 315<br />

Lotus spp. 206, 207, 208, 418, 432, 433<br />

corniculatus 207, 208, 433<br />

hispidus 207<br />

pedunculatus 207<br />

tenuifolius 432<br />

Loudetia spp. 31, 36, 425, 426<br />

simplex 36, 426<br />

Lycium spp. 133, 134, 136<br />

ameghinoi 133<br />

chilense 133, 134<br />

Lycurus phleoides 234<br />

Lygeum spartum 418<br />

M<br />

Macroptilium spp. 367, 371<br />

atropurpureum 367<br />

Madagascar 424<br />

Maireana spp. 357<br />

Malezales 174, 176, 177, 209, 216<br />

Mali 420<br />

Management 6, 11, 14, 15, 20, 31, 34, 39,<br />

40, 43, 44, 45, 46, 51, 52, 53, 54,<br />

56, 61, 62, 64, 78, 80, 86, 90, 94,<br />

95, 101, 104, 105, 112–6, 237, 241,<br />

245, 246, 251, 323–6, 330–1, 333,<br />

335–6, 383, 386, 392–3, 405–8,<br />

413, 425, 427, 429, 430, 434–5,<br />

456–8, 465–9, 471–80, 486, 488,<br />

491–3<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

fi re 86, 92, 96, 110, 112, 182, 209, 244,<br />

394, 406, 408, 428, 472<br />

Geographical Information Systems<br />

111, 153, 154, 251<br />

Global Positioning Systems 111, 153,<br />

154, 251<br />

remote sensing 111, 251<br />

Maquis 11, 456<br />

Marketing 435, 466<br />

<strong>of</strong> grassl<strong>and</strong> products 78, 92, 343, 489<br />

Marmota bobak 311<br />

Matorral 418, 430<br />

Meadow 319, 384, 399<br />

alpine 11, 15, 291, 310–3, 317, 320, 325<br />

fl ood 363, 399–401<br />

hay 384, 397, 401, 402, 405–6, 408<br />

liman 386, 397, 399, 408<br />

mountain 384-5<br />

riparian 281, 282, 312<br />

Meat 9, 38, 39, 51, 79, 87, 88, 91, 97, 276,<br />

286, 287, 323, 326, 475<br />

Medicago spp. 8, 108, 207, 277, 278, 310,<br />

352, 357, 360, 361, 365, 368, 371,<br />

389, 395, 399, 409, 410, 418, 419,<br />

433, 457, 459, 473, 478, 485<br />

ciliaris 418<br />

falcata 389<br />

littoralis 418<br />

orbicularis 419<br />

polymorpha 409, 419<br />

sativa 8, 108, 277, 278, 310, 360, 365,<br />

368, 389, 395, 399, 409, 410, 419,<br />

433, 457, 459, 478, 485<br />

sativa subsp. falcata 277, 278<br />

scutellata 419<br />

truncatula 419<br />

Melica spp. 178<br />

Melilotus spp. 402, 410, 419<br />

alba 402, 410<br />

Mesquite 230<br />

Microlaena stipoides 364<br />

Microchloa indica 181<br />

Mid-grass 347, 350, 353, 357, 368<br />

Milk 9, 38–9<br />

camel 286, 299<br />

mare 323


Index 507<br />

sheep 288, 323, 326, 330<br />

yak 326<br />

Mineral defi ciency 242<br />

Minerals supplementation 186, 209<br />

Miombo 421<br />

Miscanthus spp. 442, 443<br />

fl oridulus 442<br />

saccharifl orus 443<br />

sinensis 442<br />

Mobility 3, 10, 14, 15, 16, 41, 46, 63, 64,<br />

65, 79, 91, 92, 107, 294, 297, 298,<br />

305, 326–7, 332, 333, 334, 436,<br />

468, 478<br />

Mongolia 3, 10, 11, 14<br />

Monacha<strong>the</strong>r paradoxus 358<br />

Morocco 417–8<br />

Muhlenbergia spp. 234<br />

repens 234<br />

torrey 234<br />

Mullinum spp. 134, 141<br />

microphyllum 134<br />

spinosum 134, 141<br />

N<br />

Nama-karoo 77, 78, 79, 85, 88, 93, 97,<br />

98, 109, 112<br />

Ñ<strong>and</strong>ubay forest 174, 176<br />

Nanophyton erinaceum 277<br />

Nardophyllum obtusifolium 135<br />

Nardus stricta 401<br />

Nassauvia spp. 141<br />

glomerulosa 134, 141<br />

ulicina 134, 141<br />

National Weeds Strategy 373<br />

Nature reserves 148<br />

NDVI 133, 134, 135, 145, 146<br />

Negdel 271, 272, 274, 275, 276, 278, 291,<br />

294, 295, 296, 297<br />

Nepal 444–5, 448<br />

Neurachne spp. 358<br />

Niger 420<br />

Nitraria spp. 316, 442<br />

sphaerocarpa 442<br />

North Africa 11, 16, 417–9<br />

Nostoc spp. 181<br />

O<br />

oak 230<br />

Ochotona spp. 311<br />

Olea spp. 99, 445<br />

cuspidata 445<br />

europea 99<br />

europea var. africana 99<br />

Onobrychis viciifolia 410, 458, 459<br />

Opuntia spp. 98, 107, 109, 426, 472<br />

aurantiaca 98<br />

fi cus-indica 98, 109<br />

Organic certifi cation 131<br />

Orinus thoroldii 310, 313, 315, 317, 442<br />

Ornithopus spp. 207<br />

Oryza barthii 420<br />

Ostrich 87, 90, 100<br />

Otor 291, 296, 301<br />

autumn 269, 271, 277, 281, 287, 288,<br />

291, 292, 295, 296, 297<br />

spring 269, 277, 279, 281, 284, 291,<br />

292, 293, 296, 298, 302<br />

summer 266, 269, 270, 272, 273, 277,<br />

279, 280, 291, 292, 293, 297<br />

Overgrazing 34, 35, 44, 54, 56–59, 152,<br />

176, 211<br />

Oversowing 208, 408<br />

Overstocking 14<br />

Ovis ammon hodgsoni 310<br />

Oxalis spp. 181<br />

Oxytropis spp. 312, 314, 319<br />

aciphylla 319<br />

microphylla 314<br />

P<br />

Paddock ranking 209<br />

Pajonales 176, 182<br />

Pakistan 8, 443–4, 447–8, 449–1<br />

Pampas 430-3<br />

Panicum spp. 31, 36, 38, 62, 97, 105, 113,<br />

114, 178, 181, 230, 356, 359, 360,<br />

362, 420, 426, 427, 434<br />

decompositum 359<br />

deustum 97<br />

laxum 427<br />

maximum 36, 38, 97, 105, 113, 356,<br />

359, 360, 362, 426


508<br />

maximum var. trichoglume 356<br />

milioides 181<br />

nicorae 181<br />

olyroides 426<br />

sabulorum 181<br />

turgidum 420<br />

urvilleanum 434<br />

virgatum 230<br />

Pappophorum spp. 434<br />

caespitosum 434<br />

phillippianum 434<br />

Paraguay 427, 429, 430<br />

Parkinsonia aculeata 365<br />

Participation 61, 300, 336, 487–8<br />

Pascopyrum smithii 230, 243<br />

Paspalidium spp. 356<br />

Paspalum spp. 174, 175, 176, 178, 180,<br />

181, 182, 183, 198, 201, 203, 204,<br />

205, 215, 360, 426, 427, 431, 432<br />

almum 174<br />

carinatum 427<br />

dilatatum 175, 181, 201, 203, 360, 431,<br />

432<br />

gardnerianum 426<br />

hydrophylum 180<br />

indecorum 175<br />

intermedium 176<br />

maculosum 203<br />

nicorae 181<br />

notatum 174, 176, 181, 183, 194, 198,<br />

201, 203, 204, 205<br />

pauciciliatum 203<br />

paucifolium 198, 199<br />

plicatulum 174, 181, 198, 202, 203, 426<br />

quadrifarium 176, 182, 431<br />

urvillei 203<br />

Pasture 2, 4, 15, 16, 188–9, 194–5, 204–5,<br />

208, 210–1, 276, 302, 351, 359–64,<br />

369, 370, 436, 443, 457<br />

development 392–3, 413, 455<br />

native 350–1, 353, 360, 364–8, 369,<br />

372–3, 374<br />

sown 344, 348, 353, 356, 360–3, 366–7,<br />

369, 371, 373, 374, 387, 394, 411,<br />

413, 433, 437<br />

tropical 345, 346–7, 351–5, 366–8, 372,<br />

374<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Pedicularis spp. 312, 314<br />

Pennisetum spp. 31, 36, 37, 38, 105, 108,<br />

114, 116, 119, 120, 315, 317, 373,<br />

420, 442, 481, 482<br />

centrasiaticum 442<br />

cl<strong>and</strong>estinum 36, 105, 108, 116, 119,<br />

120<br />

fl accidum 315, 317<br />

polystachyon 373<br />

purpureum 36, 37, 481, 482<br />

sphacelatum 37<br />

Pentzia incana 98<br />

Perezia lanigera 134<br />

Peucedanum ru<strong>the</strong>nicum 395<br />

Phalaris spp. 365, 368, 400, 401, 419, 433<br />

aquatica 365, 368, 419<br />

arundinacea 433<br />

Phaseolus spp. 431<br />

Philadelphus spp. 316<br />

Phleum spp. 135, 310, 389<br />

alpinum 310<br />

commutatum 135<br />

pratense 389<br />

Phlox hoodii 233<br />

Phosphorus 186, 199, 201, 202, 206, 209,<br />

470<br />

defi ciency 186, 199, 206, 209, 370, 470<br />

fertilizer 2, 9, 200, 201, 202, 203, 219,<br />

329, 394, 403, 406, 409, 410, 413,<br />

473, 481<br />

in forage 142, 147, 172, 193, 333, 391<br />

Phragmites spp. 316, 443, 445, 448<br />

communis 443<br />

karka 445<br />

Phytocoenosis 390<br />

Picea spp. 316, 317<br />

Pinus spp. 446<br />

roxburghii 446<br />

wallichianai 446<br />

Pipthantus nepalensis 446<br />

Piptochaetium spp. 174, 179, 181, 182,<br />

196, 198, 199, 201, 203, 208<br />

montevidense 174, 182, 196, 198, 199,<br />

203<br />

stipoides 174, 181, 201, 208<br />

Plantago spp. 282<br />

Plant Diversity, Centre <strong>of</strong> 148


Index 509<br />

Poa spp. 133, 134, 135, 136, 141, 144,<br />

178, 181, 201, 208, 243, 283, 313,<br />

314, 316, 319, 356, 357, 387, 388,<br />

389, 393, 395, 397, 401, 404, 410,<br />

434, 443, 445, 446, 454<br />

alpina 313, 314, 443<br />

angustifolia 395, 410, 443<br />

bulbosa 387, 388, 389, 393, 397, 404,<br />

445, 454<br />

crymophila 313<br />

dolichachyra 313<br />

dusenii 134, 135, 141<br />

labillardieri 356, 357<br />

lanigera 181, 201, 208<br />

lanuginosa 134, 136, 434<br />

ligularis 133, 134, 136, 141, 144, 434<br />

poecila 135<br />

pratensis 243, 387, 389, 393, 395, 401,<br />

410, 443<br />

subfastigata 283<br />

Polygonum spp. 312, 316, 388, 389, 390,<br />

402, 404, 443<br />

aviculare 388, 389, 402<br />

convolvulus 402<br />

macrophyllum 312, 443<br />

viviparum 312, 443<br />

Populus spp. 230, 244, 281, 395, 401<br />

Portulaca spp. 359<br />

Portulacaria afra 97, 98, 115<br />

Potaninia mongolica 442<br />

Potentilla spp. 277, 282, 312, 314, 402,<br />

442, 443, 446<br />

acaulis 277<br />

anserina 282, 443<br />

argentea 402<br />

bifurca 314<br />

fruticosa 313, 314<br />

fulgens 442<br />

nivea 277<br />

tanacetifolium 282<br />

Prairie dog 227, 249<br />

Precipitation 1, 3, 13, 15, 21, 29, 31, 34,<br />

35, 52, 54, 55, 56, 57, 58, 59, 62,<br />

64, 77, 81, 83, 84, 87, 92, 94, 95,<br />

96, 97, 98, 99, 100, 102, 104, 105,<br />

107, 109, 124, 142, 145, 146, 147,<br />

172, 173, 177, 184, 193, 195, 201,<br />

225, 234, 236, 237, 269, 278, 279,<br />

280, 281, 292, 309, 311, 312, 316,<br />

317, 331, 343, 344, 345, 346, 348,<br />

350, 351, 352, 353, 356, 357, 359,<br />

361, 365, 373, 385, 386, 397, 411,<br />

417, 420, 421, 425, 426, 428, 429,<br />

431, 434, 441, 444, 445, 451, 453,<br />

454, 456, 457, 472, 477, 478, 493<br />

Predators 57, 91, 127, 136, 138, 145, 205,<br />

239, 245, 270, 294, 296, 311, 347,<br />

475<br />

Primula spp. 312<br />

PROLANA 130<br />

Prosopis spp. 112, 133, 136, 365, 433, 472<br />

alpataco 136, 433<br />

denudans 133<br />

denudans: 133<br />

fl exuosa 136, 433<br />

velutina 472<br />

Prospidastrum spp. 141<br />

Protein content 240<br />

Prunus spp. 316<br />

Pseudois nayaur 310<br />

Psidium spp. 472<br />

Ptaeroxylon obliquum 98<br />

Pteridium aquilinum 446<br />

Ptilagrostis spp. 277, 316<br />

mongolica 277<br />

Ptilotus spp. 358<br />

Puccinellia spp. 399, 401<br />

Q<br />

Quercus semicarpifolia 317<br />

R<br />

Rabbit 348, 371<br />

Rainfall – see Precipitation<br />

Rakhi 288<br />

Ranunculus spp. 312<br />

Reaumuria spp. 316, 319, 442<br />

soongarica 319, 442<br />

Redberry 230<br />

Reimarochloa acuta 427<br />

Remote sensing 54, 111, 251<br />

L<strong>and</strong>sat TM 113, 146, 147, 153<br />

NDVI 133, 134, 135, 145, 146


510<br />

Restocking 302<br />

Retama raetam 454<br />

Rhagodia spp. 357<br />

Rheas 127, 154, 174<br />

Rheum spp. 312, 316<br />

Rhigozum spp.<br />

obovatum 98<br />

trichotomum 97<br />

Rhodes grass – see Chloris gayana<br />

Rhodiola algida var. tangutica 442<br />

Rhododendron spp. 313, 316, 317, 446<br />

Rhus spp. 97, 99, 115<br />

incisa 99<br />

longispina 99<br />

undulata 99, 115<br />

Rhynchospora spp. 174<br />

praecincta 174<br />

Riparian areas 131, 143, 144, 147, 154,<br />

249, 251, 281, 282, 292, 312<br />

Risk 210, 292<br />

aversion 190<br />

avoidance 15, 294<br />

drought 38, 127, 144, 147, 181, 276,<br />

277, 278, 292, 298, 301, 421, 445<br />

environmental 147, 153, 333<br />

herding 10, 15<br />

management 38, 44, 64<br />

predator 91, 138, 145<br />

<strong>the</strong>ft 91, 294<br />

Rocky Outcrops region 174, 176, 199,<br />

209<br />

Roegneria spp. 310, 312, 313, 316<br />

melan<strong>the</strong>ra 310<br />

nutans 312, 313<br />

thoroldiana 313<br />

Rosa spp. 446<br />

Rotational grazing 90, 102, 144–5, 112,<br />

115<br />

Rytidosperma virescens 135<br />

S<br />

Sabina spp. 317<br />

Saccharum spp. 445, 448<br />

spontaneum 445<br />

Sahel 55, 420, 421, 422<br />

Salix spp. 11, 281, 313, 316, 317, 395,<br />

401<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Salsola spp. 277, 316, 402, 442, 453<br />

kali 402<br />

laricifolia 402, 442<br />

passerina 277, 442<br />

vermiculata 277, 442, 453<br />

S<strong>and</strong> dunes 114, 149, 315<br />

S<strong>and</strong>y Hills region 176<br />

Sanguisorba <strong>of</strong>fi cinalis 443<br />

Savannah 1, 13, 20, 31, 33, 36, 38, 48, 49,<br />

58, 79, 85, 92, 93, 95–6, 105, 109,<br />

113, 115, 230<br />

cultivation 421<br />

wooded 421, 427<br />

Schinopsis spp. 429, 430<br />

Schinus spp. 141<br />

polygamus 134<br />

Schizachyrium spp. 174, 175, 178, 181,<br />

182, 199, 202, 230, 355, 421<br />

fragile 355<br />

imberbe 175<br />

microstachyum 175, 182, 199<br />

paniculatum 174<br />

rupestre 421<br />

scoparium 230<br />

semi-herbe 421<br />

setigera 181<br />

spicatum 181, 202<br />

Sclerolaena spp. 357<br />

Schoenefeldia spp. 31, 34, 420<br />

gracilis 420<br />

Scirpus spp. 443<br />

triqueter 443<br />

yagara 443<br />

Sclerocarya birrea 420<br />

Scorpiurus spp. 419<br />

Scutia myrtina 99<br />

Sehima spp. 355, 448<br />

nervosum 355<br />

Selaginella spp. 181<br />

Senecio spp. 134, 141<br />

Seriphidium spp. 442<br />

borotalense 442<br />

rhodanthum 442<br />

terrae-albae 442<br />

Setaria spp. 31, 36, 45, 97, 114, 178, 367,<br />

402<br />

sphacelata 36, 45, 97, 367


Index 511<br />

Sheep 14, 15, 38, 39, 84, 86–8, 90, 91, 92,<br />

97, 100, 109, 77, 87, 89, 90, 106,<br />

127, 130, 136–8, 140, 142, 148,<br />

173, 178, 186, 187, 188, 207, 239,<br />

285–7, 289, 290, 294, 323–5, 347,<br />

419, 422, 441, 452, 454, 475, 480<br />

blue 310<br />

fi ne-wool 153, 302<br />

management 351, 365<br />

milk 288, 323<br />

trypanotolerant 423<br />

Sheep breeds<br />

Awasii 452<br />

Corriedale 127, 130, 131, 137, 140,<br />

178, 188, 189<br />

djallonke 423<br />

Dorper 88<br />

Dohne Merino 88<br />

Hampshire Down 140<br />

Ideal 178<br />

Karakul 434<br />

Merino 88, 127, 130, 131, 140, 154,<br />

189, 347, 350, 352<br />

Romney Marsh 178<br />

Southdown 140<br />

Texel 140<br />

Shinnery 230<br />

Shorea robusta 444<br />

Short-grass 174, 175, 176, 177, 352, 353,<br />

356, 357, 358, 359, 367<br />

Simulation modelling 56, 61, 102, 104,<br />

111, 116, 141, 144, 147, 154, 197,<br />

203, 204, 332, 346, 362, 367, 371,<br />

383, 387, 391<br />

Sisymbrium spp. 402<br />

Site potential 386, 391<br />

Sodgrass 357<br />

Soliva pterosperma 182<br />

Somalia 19, 22, 25, 27, 29, 34, 35, 38, 39,<br />

40, 41, 51, 470, 487<br />

Sonchus arvensis 402<br />

Sophora spp. 310, 315, 317, 443<br />

alopecuroides 443<br />

moorcr<strong>of</strong>tiana 310, 315<br />

viciifolia 315, 317<br />

Sorbus spp. 316<br />

Sorghastrum spp. 176, 230<br />

agrostoides 176<br />

nutans 230<br />

Sorghum spp. 355<br />

plumosum 355<br />

Sovkhozy 383, 392<br />

Spiraea spp. 316, 317, 396, 446<br />

Spodiopogon sibiricus 442<br />

Sporobolus spp. 34, 94, 174, 176, 181,<br />

203, 234, 356, 366<br />

crypt<strong>and</strong>rus 234<br />

heterolepis 234<br />

indicus 174, 176, 181, 203<br />

pyramidalis 94<br />

State Emergency Fodder Fund 274, 279,<br />

300<br />

Steppe 2, 15, 82, 88, 97, 305-9, 312,<br />

316–20, 323, 332–3, 335–6, 381,<br />

385, 393–7, 401<br />

alpine 277, 291, 305, 310–7, 319, 325,<br />

446, 448, 456<br />

Artemisia 277, 282, 418, 444–5<br />

Asian 434–6<br />

botanical composition 277, 282, 317,<br />

386–91, 392, 393–7, 402, 406,<br />

408–9<br />

desert 277<br />

dynamics 144, 146, 154, 309, 317, 319,<br />

320, 331, 335, 391, 393<br />

extra-Andean 121, 122, 131<br />

forest 228, 230, 237, 245, 277, 385, 395<br />

Gobi desert 277<br />

grass-shrub 134<br />

improvement 435<br />

Monte 135<br />

Patagonian shrub 122, 133<br />

semi-desert 131, 133, 134, 142, 146,<br />

148, 277, 287, 289, 397<br />

shrub 122, 134, 144, 145, 147, 317<br />

shrub-grass 134, 143, 148<br />

temperate 310, 311, 313, 316, 318<br />

types 277<br />

virgin 382, 396, 411<br />

Stipa spp. 15, 133, 134, 136, 141, 174,<br />

175, 179, 181, 196, 201, 203, 208,<br />

230, 233, 277, 282, 310, 313, 315,<br />

317, 319, 356, 357, 358, 387, 388,<br />

389, 390, 396, 397, 399, 400, 401,


512<br />

402, 403, 406, 407, 408, 409, 418,<br />

426, 431, 434, 441, 445, 446, 453<br />

aliena 313<br />

ameghinoi 134<br />

aristiglumis 356, 357<br />

baicalensis 283, 441<br />

barbata 453<br />

bigeniculata 357<br />

brevifl ora 441<br />

bungeana 315, 317, 441<br />

capillata 277, 387, 389, 397, 399, 401,<br />

403, 408, 441<br />

comata 230, 233<br />

concinna 446<br />

glareosa 277, 317, 319, 441<br />

gobica 277<br />

gr<strong>and</strong>is 441<br />

humilis 134, 141, 426<br />

ibarii 134, 135<br />

joannis 399<br />

klemenzii 441<br />

krylovi 282, 441<br />

lessingiana 387, 388, 389, 390, 397, 408<br />

neaei 133, 134, 136<br />

neesiana 175, 196, 201, 208<br />

neomexicana 234<br />

purpurea 310, 313, 317, 319<br />

setacea 356<br />

setigera 174, 181, 208<br />

spartea 233<br />

speciosa 133, 134, 136, 434<br />

subsessilifl ora 313<br />

tenacissima 418<br />

tenuis 136, 141, 434<br />

trichotoma 431<br />

variabilis 356, 357, 358<br />

Stipagrostis spp. 94, 96, 114, 420<br />

obtusa 94<br />

pungens 420<br />

Stocking 237, 242<br />

continuous 53, 139, 142, 143, 151, 152,<br />

241, 242, 367, 405<br />

rate 48, 90, 91, 103, 104, 105, 139, 140,<br />

142-148, 150, 152, 153, 186–8, 196,<br />

197, 199, 202, 207, 208, 210–1,<br />

237, 241, 242, 243, 251, 309, 333,<br />

335, 369, 373, 476–7<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world<br />

Stock unit 288, 289, 290<br />

Stylosan<strong>the</strong>s spp. 15, 179, 199, 360, 362,<br />

343, 351, 360, 362, 363, 366, 372,<br />

426, 473, 481<br />

guyanensis 426<br />

humilis 134, 426, 473<br />

leiocarpa 199<br />

scabra 366<br />

Suaeda spp. 443<br />

Subclimax 386<br />

Succession model 391<br />

Succulent karoo biome 99<br />

Sudanian zone 421<br />

Sudano-Guinean zone 421<br />

Sum 269, 273, 274, 276, 279, 290, 291,<br />

292, 297<br />

Sur 276, 297<br />

Sustainability 15, 62, 86, 97, 102, 103,<br />

114, 319, 331, 332, 333, 334, 335,<br />

336, 337, 383, 465, 487<br />

Sympegma spp. 316, 319, 442<br />

regelii 277, 319, 442<br />

Syrian Arab Republic 451-3<br />

T<br />

Taiga 267, 268, 381, 382, 385, 488<br />

Tall-grass 353, 354, 355, 356, 357<br />

Tamarix spp. 148, 316<br />

Tenure – see L<strong>and</strong> tenure<br />

Terminalia spp. 356<br />

Thalictrum simplex 283<br />

Themeda spp. 94, 354, 355, 356, 357,<br />

364, 425, 442, 448<br />

avenacea 357<br />

tri<strong>and</strong>ra 31, 36, 94, 354, 355, 356, 357,<br />

364, 425, 442<br />

tri<strong>and</strong>ra var. japonica 442<br />

Thicket 93, 97<br />

Thicket biome 93, 97<br />

Thlaspi arvense 402<br />

Thymus serpyllum var. mongolium 441<br />

Thyridolepsis mitchelliana 358<br />

Tibet Qinghai Plateau 436<br />

Tillage<br />

minimum 352<br />

no-tillage 206, 433


Index 513<br />

Tiller density 204<br />

Tourism 63, 77, 88, 89, 97, 100, 112, 114,<br />

122, 154, 210, 488<br />

Trachypogon spp. 94, 426, 427<br />

spicatus 94<br />

ligularis 427<br />

plumosus 426<br />

vestitus 426<br />

Tragedy <strong>of</strong> privatization 44<br />

Tragedy <strong>of</strong> <strong>the</strong> commons 43, 332<br />

Transhumance 3, 8, 9, 10, 14, 15, 40, 41,<br />

56, 129, 265, 270, 273, 276, 291,<br />

292, 294, 296, 305, 323, 330, 332,<br />

418–9, 421–2, 446, 449, 456, 463,<br />

466, 468, 478, 479, 492<br />

Trevoa patagonica 134<br />

Trifolium spp. 108, 174, 179, 181, 199,<br />

203, 207, 208, 352, 353, 357, 360,<br />

361, 371, 389, 395, 418, 419, 432,<br />

433, 473, 482, 483, 485<br />

fragiferum 360, 418, 419<br />

polymorphum 174, 181, 199, 203<br />

pratense 108, 207, 360, 395, 433<br />

repens 108, 208, 353, 360, 361, 389,<br />

395, 432, 433<br />

subterraneum 352, 353, 360, 361<br />

Triglochin palustre 443<br />

Trikeraia hookeri 310<br />

Triodia spp. 359<br />

Tsetse 50, 421<br />

Tuareg 421<br />

Tulipa spp. 397<br />

Tunisia 417–9<br />

Turkey 455–7<br />

Turkmenistan 434, 445<br />

Tussockgrass 359<br />

Tussock prairie 176<br />

U<br />

Uncia uncia 294, 311<br />

Ursus arctos 311<br />

Urtica spp. 402, 446<br />

cannabina 402<br />

parvifl ora 446<br />

Utilization 352, 368<br />

Uzbekistan 434-5<br />

V<br />

Vaccinium spp. 11<br />

Vegetation-based pasture assessment<br />

routines 146<br />

Venezuela 426, 427<br />

Verbena ligustrina 133<br />

Vernonia nudifl ora 182<br />

Vicia spp. 207, 395, 401, 431<br />

Vigna spp. 109, 372<br />

parkeri 372<br />

unguiculata 109<br />

Viscachas 174<br />

Vole 227<br />

Vossia cuspidata 420<br />

Vulpia australis 202<br />

W<br />

Walafrida geniculata 98<br />

Water 91, 112, 114, 116, 144, 295, 301,<br />

469–70<br />

access 3,19, 39, 40, 41, 42, 43, 46, 50,<br />

52, 57, 61, 63, 64, 295, 296, 301,<br />

464–5, 469–70, 478, 487, 493<br />

artesian 350<br />

bores 350<br />

points 469–70<br />

provision 242<br />

resources 248, 251,<br />

West Africa 9, 16, 419–24, 463–4, 469<br />

Wildlife 2, 5, 11, 25, 35, 38, 39, 40, 43,<br />

47, 48, 50, 51, 56, 57–8, 63, 65, 88,<br />

144, 145, 154, 173, 174, 247, 306,<br />

310, 347, 469<br />

competition 244<br />

grazing 228, 229, 245, 250, 251<br />

habitat 227, 228, 236, 249, 464, 465<br />

kangaroo 348<br />

tourism 488, 489, 491, 493<br />

wallaby 348<br />

wolves 270<br />

yak 285, 295, 303, 310<br />

Wool trade 92, 130, 178


514<br />

Y<br />

Yak 9, 11, 14, 265, 268, 277, 280, 282,<br />

284, 285, 286, 287, 288, 293, 294,<br />

295, 435, 441, 448<br />

hybrids 285, 287<br />

Z<br />

Ziziphus spp. 366, 454<br />

mauritiana 366<br />

spina-christi 454<br />

Zoocoenosis 390<br />

Zornia spp. 179, 199<br />

reticulata 199<br />

zud 277, 279, 292, 293, 298, 301, 302<br />

black 293<br />

khuiten 293<br />

relief 302<br />

storm 293<br />

white 292, 293<br />

<strong>Grassl<strong>and</strong>s</strong> <strong>of</strong> <strong>the</strong> world

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