Evaluation on the Service Function Values of Wetland Ecosystem in Shaanxi in 2020
Using the year 2020 as the benchmark for evaluation,the value of wetland ecosystem serv-ices in Shaanxi Province was assessed by adopting data from the Third National Land Survey of Shaanxi Province and socio-economic development data,and applying methods such as market value approach,transportation cost method,achievement reference method,shadow engineering method,and equivalent value per unit area method.The results indicate that the total value of wetland ecosys-tem services in Shaanxi amounts to RMB 306.169 billion,with direct use value at RMB 36.662 billion,indirect use value at RMB 230.005 billion,and non-use value at RMB 39.502 billion.The combined value of the three service functions-climate regulation,biodiversity maintenance/habitat provision,and water purification-totals RMB 258.277 billion,accounting for 84.36％of the total value.This fully demonstrates the significant ecological function value of wetlands,namely,regulating the cli-mate,sustaining the reproduction of flora and fauna,and providing clean water sources for humanity.
万方数据
维普
