基于PSR模型的海洋牧场生态系统健康评价指标体系构建

The establishment of the index system of marine ranching ecosystem health evaluation based on PSR model

在海洋牧场生态系统特征及健康内涵的基础上,针对海洋牧场区域这一复杂的生态系统,基于压力-状态-响应(PSR)模型,结合海洋牧场生态系统特征和所收集的数据特点及其可获取性等,经过反复筛选与提炼,形成由压力、状态和响应共33个具体评价指标组成的海洋牧场生态系统健康评价指标体系及具体指标,并对指标的选取和体系构建的构建进行了简要的诠释,通过熵权法对各指标进行权重计算,为了定量海洋牧场生态系统健康状态,通过建立综合健康指数,确定海洋牧场生态系统的健康状态。

On the basis of the characteristics and health connotation of marine ranching ecosystem,aiming at the complex ecosystem of marine ranching region,a marine ranching ecosystem health evaluation index system was built composing 33 specific evaluation indexes of pressure,status and response,which was formed through repeated screening and extraction based on the pressure-state-response(PSR)model and combining with the characteristics of marine ranching ecosystem and the collected data characteristics and their accessibility,etc.The collection of indexes and the establishing of the health evaluation index system were briefly introduced.The entropy weight method can be used to calculate the weight of each index,and the health status of marine ranching ecosystem can be determined by establishing the comprehensive health indexes.