Assessment of water potential underground in Suyal watershed Almora, using analytic hierarchical process and GIS approach
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Date
2022-04
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G. B. Pant University of Agriculture and Technology, Pantnagar
Abstract
With the increase in water consumption and climatic variation hundreds of spring fed water shed is at a great threat. Due to decline of discharge in conventional water resources crop land has also shrinked which has affected the economy of region to a great extent. Underground water is present in form of porous aquifer and springs in hilly and mountainous regions. Due to lack of maintenance and over exploitation many conventional water sources are at verge of extinction. In this study GIS- based weighted sum analysis approach was used to identify sites of water potential zones which can be used for both water extraction and rejuvenation of these conventional water sources in Suyal river watershed. GIS based tools can be used for studying of relief and structural aspects of basin. Different factors were quantified and the influence of each factor over is judged. Results show that 21% of area lies under good recharge potent ability while 79% area lies under poor ground water potential region. Areas with good to excellent recharge potential may be considered for augmentation measures to sustain its specific yield in the future.