基于生物完整性的城市湿地健康评价

Health evaluation of urban wetland based on biological integrity

目前城市湿地缺乏一套完整的生态健康评价体系。本研究基于对浙江温州三垟湿地11个样点的生物采样数据,构建了生物完整性评价体系,采用四分法划分健康、良好、一般、差、极差5个等级。研究表明三垟湿地整体生态健康状况为一般;就功能区划分看,旅游休闲区的健康状况最好,保育区次之,过渡区最差;受人类干扰较强的居民区及附近区域健康状况差;该方法可作为城市湿地生态健康评价的工具,能为城市湿地生态系统保护与修复提供科学依据。

At present,there is a lack of a complete set of ecological health evaluation system for urban wetlands.Based on the biological sampling data of 11 sites in Sanyang wetland of Wenzhou,Zhejiang Province,this study constructed a biological integrity evaluation system,which was divided into five gradeshealthy,good,general,poor and extremely poor by using the quartering method.The results showed that the overall ecological health status of Sanyang wetland was general;As far as the functional areas are concerned,the health status of tourism and leisure areas is the best,followed by conservation areas and transition areas;The ecological health status of residential areas and nearby areas with strong human disturbance was poor;This method can be used as a tool for urban wetland ecosystem health assessment and provide scientific basis for urban wetland ecosystem protection and restoration.