Antipollution Assessment of Un-Confined Groundwater in the Plain Area of Jilin Province Based on GIS

According to the actual conditions of the plain area of Jilin Province, and based on the DRASTIC index system, the Vector Drawing Function in GIS Software is applied to draw single index figures. Then different figures form the assessment cells by the Module of Special Superposition Analysis. The attributive database of GIS is applied to evaluate the antipollution capability of groundwater in the plain area of Jilin Province. The assessment results are coincident with the hydrogeologic conditions of the study area.