A Health Assessment of the Ecosystem in Shuangtaihekou Wetland

Shuangtaihekou Wetland is typical estuarine wetland in the north of China. In order to understand the current health status of the ecosystem in Shuangtaihekou Wetland, Pressure-state-response assessment model is adopted and analytic hierarchy process is used to carry out a comprehensive assessment of it. The assessment results show that the ecosystem health index of the wetland is 0.646, indicating a sub-health level. In general, 25.9 % of the entire ecosystem in the region is in excellent health; 21.4 % of it is healthy; 19.6 % of it is in sub-health state; 15.3 % of it is in morbid state and 17.8 % of it is in severe condition. So all in all, Shuangtaihekou Wetland is in a sub-health condition.