Identification of Artificial Recharge Zones Using GIS

Water is one of the most dynamic and important resources of the world. Hence, it needs special attention towards its conservation. Fresh water is mainly obtained either from surface source or as a ground water. Artificial recharge is the most appropriate practice, which traps the unused surface runoff which leads to increase the groundwater recharge. The present study aims to identify artificial recharge zones. Formation of different thematic layers such as soil, slope, land use, drainage and geomorphology were carried out by using Remote Sensing (RS) and Geographical Information System (GIS). These maps were combined in GIS tool to categorise artificial recharge zones. The knowledge-based weightage was assigned. These thematic maps were used for weighted overlay analysis and the final map was prepared showing artificial recharge zones which are categorised as good, moderate and poor. The information regarding groundwater recharge zones is useful for locating water harvesting structures.