Water Productivity and Food Security

1. Water Productivity Improvements in Global Agriculture: Need for Prioritising Areas 2. New Methodology for Assessing Global Water and Food Challenges: Implications for Agricultural Water Productivity Improvements 3. Conceptual Issues in Water Use Efficiency and Water Productivity 4. Theoretical Aspects of Estimating Different Productivity Functions 5. Past Trends in Water Productivity at the Global and Regional Scale 6. Future Demand for Agricultural Commodities in Different Regions and its Implication for Land and Water Use and Water Productivity in Agriculture 7. Past Growth in Agricultural Productivity in South Asia 8. Measures for Raising Crop Productivity in South Asia and Sub Saharan Africa 9. Constraints to Improving Crop Water Productivity in Rainfed and Irrigated Systems in South Asia and Sub Saharan Africa 10. Framework for identifying the interventions required for enhancing water productivity at various scales

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• A segurança alimentar e abastecimento
• Seca e água

Absolute water scarcity; Agricultural output; Agricultural water productivity; Alternate wetting and drying; Arable land; Basin conditions; Basin inflows; Basin level water productivity; Basin outflows; Basin water accounting; Basin water demand; Canal lining; Change in consumption pattern; Climate change; Combined physical and economic productivity of water; Consumed fraction; Crop shift; Crop water productivity at field scale; Crop water productivity at regional scale; Cropped area; Demand for agricultural commodities; Economic productivity of water; Economic value; Effective agricultural water withdrawal; Effective renewable water resources; Efficient irrigation methods; Environmental constraints; Evapotranspiration; Food insecurity; Food security; Future agricultural water productivity; Global food demand projections; Global trends in agricultural water productivity; Global trends in crop yield; Green revolution; Growth in food consumption; Improved crop management; Inefficient pricing; Institutional constraints; Irrigated area; Irrigation water withdrawal; Land use; Land-scarce regions; Marginal water productivity; Market constraints; Microirrigation; Paddy; Per capita calorie intake; Physical constraints; Physical scarcity of water; Plant breeding; Policy constraints; Rainfed agriculture; Rainfed crops; Runoff variability; South Asia; Sub-Saharan Africa; Supplementary irrigation; Technical efficiency improvements; Technological constraints; Total factor productivity; Transpiration; Transpiration efficiency; Value of agricultural production; Water adequacy index; Water conservation; Water delivery control; Water ecology; Water footprint; Water harvesting; Water management challenges; Water productivity; Water productivity functions; Water scarcity; Water supply; Water use efficiency; Water-land index; Water-land pasture land index; Water-rich regions