GIS تعيين مناطق مناسب براي تغذيه مصنوعي آبهاي زيرزميني به روش حوضچه هاي تغذيه با استفاده از

Identification of Suitable Sites for Groundwater Artificial Recharge by Basins Method Using GIS

Use of recharge basins is one of the methods for artificially recharging groundwater. Selection of suitable sites for artificial recharge is very important and needs to be carried out accurately. Due to presence of various and effective spatial parameters in selection of suitable sites for artificial recharge and a need to review the evaluated factors in relation of one to the other, as well as their changes, GIS is a useful system to be employed for spatial data management. In this study it is attempted to select suitable sites for groundwater recharge through recharge basins in Gavbandi watershed southern Iran, using GIS. For site selection, the information items, slope, surface infiltration, alluvial thickness and quality of sediments were investigated and integrated in GIS using Boolean and Fuzzy logics. Satellite images were used to prepare the geomorphologic and landuse maps. The results indicated that about %12 of the area is suitable for artificial recharge with suitable sites being located mainly in the alluvial fans and piedmont units.