Evaluation of Ecological Health of Urban Riverine Wetlands Based on PSR Models——A Case Study of Gusu District of Suzhou City
The ecological health of urban river wetlands is an important foundation for urban ecological sustainability.In this study,the river wetlands in Gusu District of Suzhou City were used for a case study,and the health status of the river wetlands was evaluated by using hierarchical analysis and fuzzy comprehensive evaluation method.The study shows that:the ecological health status of river wetlands in Gusu District,Suzhou is in the"medium"grade,close to the"sub-healthy"state;the ranking weights of criterion layers are state layer indicators＞pressure layer indicators＞response layer indicators,which indicates that the state layer indicators can intuitively reflect the health status of the river wetlands.The state layer index is 0.658.The health status of each river section is closely related to the pressure on its corresponding urban watershed,and the construction intensity and vegetation coverage of the city have a significant impact on the health status of the river wetlands in Gusu District.
Urban river wetlandsPSR modelFuzzy integrated evaluationEcological health assessmentGusu district
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