Based on the "Three Chart" Method of Groundwater Vulnerability Assessment

Analysed the research of groundwater vulnerability assessment worldwide actuality, considered the groundwater system vulnerability should be included in groundwater systems anti-fouling and groundwater system vulnerability.Based on the coupled technique of ANN-GIS, a "Three Chart" method was proposed, the maps of distribution of antipollution and the facility-pollution are compounded, and the distribution of the vulnerability of groundwater system is confirmed.