基于当量因子模型的江阴市生态服务价值核算研究OA

The equivalent model method was used to calculate the theoretical value of ecosystem service, and the regional characteristic coeffi-cient was selected for value correction.Combined with the analysis of the ecological sensitivity and per capita ecological value of the research area, the problems of difficult transformation of ecological service value and low market recognition in current practice were discussed.The re-sult showed that the revised value of one standard unit equivalent ecological service in the study area in 2020 was 6180.02 yuan/hm2, with a total value of about 15.982 billion yuan.The service value of different land ecosystems varied greatly, in which the highest value per unit area reached 776272.05 yuan/hm2, followed by wetland 321484.50 yuan/hm2.From the perspective of different ecological functions, the contri-bution rates of regulatory services, supply services, support services and cultural services were 84.08％, 8.24％, 5.75％ and 1.93％, re-spectively;the per capita value of ecological value was about 12618.96 yuan, with different differences;the regional average ecological sensi-tivity index was 0.79<1, indicating that ecological service value was sensitive to the regional development stage.