Groundwater Vulnerability Assessment System Based on GIS

On the basis of GIS technique, with single factor layer data of spatial database and Overlay analysis method, the designing of groundwater vulnerability assessment model for DRASTIC、LSD、DRTA、DLCT has been proposed. Under VC ++6.0, with the application of MapGIS development kit, the groundwater vulnerability assessment model system has been developed. It can associate professionals for performance evaluation of groundwater vulnerability.