模糊数学方法在生态系统服务价值评估中的应用

Estimation of ecosystem services value based on fuzzy mathematic method

为了综合考虑多种因素对生态系统服务价值的影响,并对其作出定量描述,以南水北调中线工程水源地——丹江口水库库区为研究对象,将生态系统划分为农业生态系统、森林生态系统、淡水生态系统和草地生态系统4个子系统,分别采用模糊综合评价方法对研究区域生态系统服务价值进行评估。结果表明,该区域生态系统服务价值量为166.473 1亿元,区域生态资源丰富。研究结果可为今后生态补偿标准的制定提供理论依据。

In order to comprehensively consider the influence of various factors on the value of ecosystem services and to evaluate the value quantitatively,taking Danjiangkou Reservoir,the water source for the middle line of the South-toNorth water diversion project,as an example,the ecosystem was divided into four subsystems： the agriculture ecosystem,forest ecosystems,freshwater ecosystem,and grassland ecosystem.The value of ecosystem services of each subsystem was estimated with the fuzzy comprehensive evaluation method.The results showed that the ecosystem services value of this study area was 16.647 billion RMB and the regional ecological resources were abundant.The results could provide a theoretical basis a standard of ecological compensation in the future.