THE GIS-BASED ASSESSMENT OF ANTIPOLLUTION CAPACITY OF SHALLOW GROUNDWATER IN THE ALLUVIAL FAN OF HUNHE RIVER

Based on the broadly used assessment method of DRASTIC, considering the actual conditions of the alluvial fan area of Hunhe River, the weights of assessment factors for antipollution capacity are reset by analytic hierarchy process (AHP). The GIS is applied to evaluate and map the antipollution capacity of shallow groundwater. The evaluation results are coincident with the hydrogeological conditions of the region.