Wetland Ecological Restoration and Payment for Ecosystem Service Standard: A Case Study of Ganjiangyuan National Wetland Park

Abstract

Wetland resources in wetland parks are unique natural resources. Discussing the ecological restoration and compensation standards of wetland parks plays an important guiding role in the construction of wetland protection systems. Based on the characteristics of wetland resources, using wetland ecosystem evaluation, ecosystem services evaluation, alternative cost, and conditional value methods, nine secondary indices were determined to evaluate the ecosystem services of Ganjiangyuan National Wetland Park. The results are as follows: (1) Ganjiangyuan National Wetland Park ecosystem evaluation result was “excellent,” the ecosystem service value of the wetland park is 43,922,014.39 yuan/hm2·year, among which the hydrology regulation value is the largest (19,257,869.14 yuan/hm2·year) and the food production value is the smallest (12,900.76 yuan/hm2·year). (2) The ecological restoration of Ganjiangyuan National Wetland Park should be based on improvements in hydrological regulations, waste treatment, entertainment culture, and biodiversity conservation. In conjunction with the strategic needs of wetland protection and social economy, wetland park restoration can contribute to urban development. (3) The upper and lower limits of the ecological compensation standard in the study area were calculated to be 310.49 and 257.87 yuan/hm2·year, respectively. Research shows that the ecosystem service value of wetland parks is huge, especially in terms of water conservation and waste treatment. It is necessary to pay attention to ecological benefits while reaping the economic benefits of wetland parks. Therefore, the results of this study provide a theoretical reference for the ecological compensation of wetland parks.