Water Resources 4 Water management Watershed management Natural Resource Economics, (New March 2000) 3 Water resources 3 Watersheds 3 Case studies 2 Irrigation 2 Meteorology and Climate 2 Policy and Planning 2 Soil Water Management (Irrigation and Drainage), (Revised June 2002) 2 Sustainability 2 Agencies and Organizations 1 Aquatic Biology and Ecology 1 Aquatic animals 1 Aquatic plants 1 Arid regions 1 Catchment hydrology 1 Climatic change 1 Climatic changes 1 Community Participation and Development, (New March 2000) 1 Community involvement 1 Crops and climate 1 Crops and water 1 Decision making 1 Dry farming 1 Ecohydrology 1 Ecological restoration 1 Ecology 1 Ecosystems 1