莱州湾地区海水入侵灾害风险评价

Assessment of seawater intrusion disaster risk in Laizhou Bay

莱州湾地区是我国海水入侵灾害最严重的地区。结合自然灾害风险评价理论并根据莱州湾地区的实际情况,将海水入侵风险评价体系分为危险性评价、易损性评价和防灾减灾能力评价,并借助GIS空间分析方法,对危险性、易损性和防灾减灾能力评价结果进行了叠加分析,将莱州湾地区划分为低风险区、较低风险区、中等风险区、较高风险区和高风险区等5个海水入侵灾害风险区域。

Laizhou Bay is the most serious region suffering from the geo-hazard of the seawater intrusion in China. Based on the theory of the nature hazard risk assessment and the actual situation in the Laizhou Bay, the seawater intrusion risk assessment were divided into： hazard assessment, vulnerability assessment and disaster prevention and reduction capability assessment in this paper. Using GIS spatial analysis method, the superposition analysis of the hazard, vulnerability and disaster prevention and reduction capacity assessments was carried out and the Laizhou Bay area was classified into 5 seawater intrusion zones：low risk, slight low risk, medium risk, slight high risk and high risk zones.