Groundwater Vulnerability Assessment in Karst Areas Based on Analytic Hierarchy Process- A Case Study in Weining County, China

Strong karstlize effect forming surface and underground double-space structure in karst area, what resulting groundwater systems are extremely sensitive to outside interference. This article mainly focuses on the vulnerability assessment of karst groundwater, proposing that the vulnerability assessment of karst groundwater should be considered from three perspectives: the inherent vulnerability of groundwater, the vulnerability of the ecological environment and water resources carrying capacity, and selecting 19 indicators based on it, establishing the index system and evaluation method of groundwater vulnerability assessment in karst area combines with Analytic Hierarchy Process. The article apply the evaluation method to evaluate groundwater vulnerability of typical karst area—Weining county, China. The study can provide certain reference for the groundwater vulnerability assessment in similar karst area.