环巢湖湿地生态系统服务功能的价值核算

Value Accounting of Ecosystem Service Function of Wetlands Around Chaohu Lake

在界定湿地生态系统服务功能相关概念的基础上,对湿地生态系统服务价值及其评估方法进行了分类。基于门槛回归模型和条件价值法,构建了环巢湖湿地生态系统服务功能价值的评价模型,并收集444份关于各生态资源价值支付意愿的调研问卷,最终对环巢湖湿地生态系统服务功能的价值进行核算,结果表明,环巢湖湿地生态服务功能总价值为138.06亿元/a,其中直接使用价值、间接使用价值、非使用价值分别为110.02亿元/a、15.58亿元/a、12.46亿元/a。

On the basis of defining the relevant concepts of wetland ecosystem service function,the categories of wetland ecosystem service value and various evaluation methods were given.Based on the threshold regression model and conditional value method,the evaluation model of the service function value of the wetland ecosystem around Chaohu Lake was constructed,and 444questionnaires about the willingness to pay for the value of ecological resources were collected,and finally the value of the service function of the wetland ecosystem around Chaohu Lake was calculated.Through calculation,the total value of the service function of the wetland ecosystem around Chaohu Lake is 13.806 billion yuan per year,of which the direct use value,indirect use value and non use value are 11.002 billion yuan per year,1.558 billion yuan per year and 1.246billion yuan per year,respectively.