Wetland ecological restoration and payment for ecosystem service standard: A case study of Ganjiangyuan National Wetland Park

The wetland resource in the wetland park is a unique natural resource, which is of great significance in maintaining regional ecological security. The ecological restoration and ecological compensation of wetland parks are related to the construction and sustainable development of the park, as well as the comprehensive ecological environment of the city. Ganjiangyuan National Wetland Park is one of the wetland parks in inland China. Discussing the ecological restoration and ecological compensation standards of the wetland park has an important guiding role in the construction of the wetland ecological protection system in Shicheng County, Jiangxi Province. Wetland ecosystem evaluation methods, ecological service value tables, and willingness to accept are used to evaluate and calculate the wetland ecosystem in Ganjiangyuan National Wetland Park. The study concluded that the wetland ecosystem evaluation result of Ganjiangyuan National Wetland Park was “excellent”. For Ganjiangyuan National Wetland Park, an ecological service value index system with regulation services as the mainstay was constructed. Based on the mathematical expectation formula of WTA and the calculation principle of reducing the value of adjustment services as the upper limit of ecological compensation, the upper and lower limits of the ecological compensation standard in the study area are calculated to be 210.49 yuan/hm²·year and 157.87 yuan/hm²·year separately. The ecological compensation mechanism has been progressing and improving. Therefore, the results of this study are only applicable to the current time period, and future development and changes will become a kind of uncertainty.