Identification of groundwater recharge sites and suitable recharge structures for Thuraiyur taluk using Geospatial technology

摘要

This study is an attempt to identify the favorable zones for implementation of site-specific artificial recharge techniques for groundwater resources development. Various thematic layers such as base map, geology map, soil map and drainage map were prepared from toposheets and existing maps. Satellite data were used to prepare other layers such as geomorphology, landuse/ land cover, lineament. Water level, rainfall maps were prepared using collateral data. All these layers were integrated into GIS platform and get the artificial recharge zonation map and it was categorized into four different zones, namely 'most favorable 20%', 'moderately favorable 22%', 'favorable 34%' and 'least favorable 24%'.