Vulnerability Assessment of the Dagu River Groundwater Reservoir Based on MapInfo
Lihua Jia · Qingdao Haiyang Daxue xuebao · 2004
Based on the investigation of geographic and hydrogeologic conditions in the Dagu River area, the studied area is divided into many small zones by using the buffer function of MapInfo. A comprehensive vulnerability assessment is carried out with the popular DRASTIC model and the powerful map inquiry and calculation capacity of MapInfo. The study indicates that 60.8% of the total belongs to moderate vulnerable area, 25.0% highly vulnerable area, and 10.1% weekly vulnerable area. Therefore, all of the Dagu River groundwater reservoir is comparatively vulnerable to groundwater contamination. High pollution projects should be avoided in the future, and fertilizer and pesticide should be used reasonably so as to prevent groundwater contamination.