Climate, social and economic conditions, markets, consumer values and technology are only a few of the areas of change that the World Water Development Report (WWDR3) describes and discusses in detail.

In draught prone area, there are two critical factors: water and soil. So in such areas main objective is to conserve the soil and conserve water. Once soil and water conserved, vegetative growth sustain easily. For the same to satisfy this objective economically and efficiently, Refilled Continuous Contour Trenching (RCCT)Technology is the solution for sustainable watershed development.

To study the role of snow and ice in the global watercycle and in the world climatic system, research methods should be further standardized and inform from different region integrated. Representing these field of research, the International Commission on Snow and Ice (ICSI) has already made some guideline studies on the runoff prediction and evaluation.

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