Water and Cereals in Drylands

WATER AND CEREALS
IN DRYLANDS


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FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS (FAO)
Roma, 2008


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CONTENT

    ACKNOWLEDGEMENTS - 170 Kb
    PREFACE
    INTRODUCTION

1. DRYLANDS, PEOPLE AND LAND USE - 1,359 Kb

    Characteristics of drylands
    Dryland people
    Land use systems in drylands
    Land degradation in drylands
    Effects of livestock on the resource base
    Effects of climate change on drylands

2. CEREAL PRODUCTION IN DRYLANDS - 151 Kb

    Recent trends in worldwide cereal production
    The role of livestock in cereal production
    The role of irrigation in cereal production
    Expansion of cereal production

3. ENHANCING CEREAL PRODUCTION IN DRYLANDS - 358 Kb

    Water-use efficiency
    In situ water conservation
    Terraces
    Conservation bench terraces
    Contour furrows
    Contour bunds
    Land levelling with laser and mini benches
    Tied ridges
    Water harvesting
    Micro catchments
    Macro catchments
    Floodwater harvesting
    Rooftop water harvesting
    Factors affecting runoff
    Reducing evaporation
    Increasing soil organic matter content and fertility
    The importance of crop and cultivar selection
    Role of indigenous and introduced practices
    Combining modern with traditional technologies
    Supplementary irrigation in semi-arid regions

4. SOCIAL AND ECONOMIC ASPECTS OF DRYLAND INVESTMENT - 165 Kb

    Investment constraints
    Investment potential
    Opportunities and risks of growing feedstocks for biofuels in drylands
    Payments for environmental services
    Carbon trading
    Economics of water harvesting
    Economics of water-conservation practices
    Current scenario in dryland regions

5. WIDER ISSUES OF WATER IN DRYLANDS - 126 Kb

    CONCLUSIONS - 37 Kb
    BIBLIOGRAPHY - 115 Kb

    ANNEXES
    1. DEFINITIONS OF DRYLANDS AND DRYLAND FARMING - 59 Kb
    2. DEVELOPMENT OF DRYLAND FARMING IN VARIOUS REGIONS - 74 Kb
    3. BACKGROUND TABLES - 59 Kb
    4. CEREALS PRODUCTION MAPS - 562 Kb

    INDEX - 76 Kb


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