Artificial Groundwater Recharge Site Positioning Using RS and GIS in Gowhar Kuh Basin, Sistan and Baluchestan Province, Iran

The study area is Gowhar Kuh basin which is located in Loot desert in Sistan and Baloochestan province, Iran. The plotted hydrograph represents water table drop. For this reason, an artificial groundwater recharge project was carried out in order to prevent the water table from further drop. In order to determine the position of artificial recharge site, the Arc GIS and ENVI softwares were used. Thus, information layers of topographic height, slope, alluvium unsaturated thickness, water quality, permeability, stream density, fracture density, lithology and land use were obtained and then rated. These layers were combined using fuzzy logic in GIS. Finally the map made from combination of nine mentioned layers for the artificial recharge project was obtained via flood spreading method. Results showed that about 15 percent of the total area is highly suitable and 18 percent is suitable.