Evaluation of Water Resources Vulnerability in the Coastal Areas of the Yellow Sea and Bohai Sea under Seawater Intrusion——A case study of Longkou City, Shandong Province

In view of the increased vulnerability water resources system caused by seawater intrusion in coastal areas Yellow Sea and Bohai Sea, this paper based on VSD(Vulnerability Scoping Diagram) model to construct resource evaluation index “exposure-sensitivity-adaptive capacity” under intrusion. Then use entropy-TOPSIS method evaluate divide levels. addition, take Longkou City Shandong Province as an example conduct empirical research. The results show that is at a strong level. obvious pressure. Population density, per capita GDP, temperature precipitation change are main factors Seawater has high degree impact more sensitive groundwater level, chloride concentration other stimuli. improvement efficiency scientific technological investment contribute significant enhancement adaptability City.