Assessment and Projection of Water Demand in Changing Scenarios for India

Water sustainability measures in terms of water availability and water demand; any significant change in water availability impacts the water sustainability and thus food sustainability. Declining water resources, changing climate and rainfall pattern, increasing water demand for agricultural, domestic and industrial purposes creates the pressure on water sustainability. A quantitative analysis of water sustainability is essential for populous and water scarce country like India for long term policy planning. Crop-wise analysis of water demand gives the accurate estimate of total water demand for agriculture purpose. In the present study, we develop a mathematical model to estimate the crop-wise water demand and projected water sustainability in different scenarios of population growth, consumption pattern and climate change.