An evaluation research on ecological security evaluation of Dalian Bay coastal zone based on the Pressure-State-Response model
WU Shuyan
ZHU Qinglin
WU Wen
Abstract：In the national ecological security system,the importance of coastal zone ecological security is increasingly obvious,and the demand for coastal zone ecological security research is also increasing.The coastal zone is the area with the highest concentration of human-sea relations,the most densely populated and the most active socio-economic activities.In order to scientifically evaluate the ecological security of Dalian Bay coastal zone,based on the Pressure-State-Response model,17 indicators were screened to construct an evaluation system,and the weight of the indicators was determined by using the entropy right method,and the ecological safety of the coastal zone in Dalian Bay from 2009 to 2019 was analyzed and evaluated and corresponding countermeasures were proposed.The results showed that the ecological security level of Dalian Bay increasing steadily,followed by relatively danger,early warning,relatively safe and safe.In the criterion layer,the pressure index tended to be generally stable and slightly increased;the status index showed a"downward-upward-stable"trend;the overall re-sponse index increased year by year.In the index layer,the energy conservation and environmental pro-tection expenditure,forest greening rate and fishery production had the largest weight.Therefore,it is suggested to improve the ecological security level of Dalian Bay coastal zone by implementing precise control and remediation,strengthening marine industry and export-oriented economy,and strengthe-ning land-based pollution control and ecological restoration.
Keywords：coastal zone ecological securityPSR modelDalian Bay
Publication Date：2026-02-25
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 212-219 )