Selecting Sites for Artificial Recharge of Groundwater with the Help of GIS, Remote Sensing and Geophysical Investigations in Jakhaura Block, Lalitpur, Uttar Pradesh
Water is a type of natural resource which has its application in almost every aspect of life and due to this it’s exploitation is observed at an increasingly fast rate. Our country is also suffering from water scarcity because its population is more than almost17% of the world’s population with only 4% of the World’s renewable water resources. In Indian sub-continent our dependency on Groundwater has increased very much. As a result, the Groundwater storage of our country is decreasing at very high rate and to address this we have thought to view the possibility of artificially recharging the Groundwater. This paper aims to find the suitable sites for building rainwater harvesting structures from combined use of Remote sensing, Geophysical technique and GIS in Jakhaura block of Lalitpur, Uttar Pradesh. The hard terrain feature of Jakhaura block makes the runoff very high and as a result infiltration of the rainwater to the groundwater is very low. For multi criteria evaluation, different thematic layers such as base map of area, drainage network, land use/ land cover, slope map, lineament, VES ( Resistivity meter) data, pseudo section using Zohdy software are taken into account. The overlay analysis of thematic layers has helped to make ground water prospects map, which has helped to make a site suitability map of different rainwater harvesting structures including percolation tanks, nala bunds, distillation tank and check dams etc.