At present,China's wetland is facing land ownership issues,which has led to particularly high pressure on land use.Ecological protection and scientific management of ecosystems are two issues that restrict the development of wetlands.Based on the land use type data of the Yellow Sea Wetland World Natural Heritage Site in 1990,2000,2010,and 2020,the article uses the value core currency rate to optimize the impact of currency depreciation on value equiva-lents,and evaluates the ecosystem of the Yellow Sea Wetland World Natural Heritage Site.Serve.The results show that the cultivated land area of the Yellow Sea Wetland World Natural Heritage Site increased from 9 353 ha to 26 445 ha,and the grassland area decreased from 54 283 ha to 26 732 ha.The changes in other types were not obvious;The ecosystem service value continued to increase from 13.268 billion yuan to 49.627 billion yuan during 1990 to 2020;Hydrological regulation services account for 80%,and the average annual growth rate is 4.27%,which is the core function of the Yellow Sea Wetland World Natural Heritage Site.The research results are of great significance to regional ecological pro-tection.
关键词
世界自然遗产地/生态系统服务/土地利用分类/服务价值评估
Key words
world natural heritage sites/ecosystem services/land use classification/service value assessment
维普
万方数据