上海湿地资源禀赋、生态价值与生态安全格局构建OACHSSCD

Shanghai's wetlands hold a strategic position in the ecological security framework of the Yangtze River Delta and represent vital natural capital for urban ecological safety and the national"dual carbon"strategy(carbon peaking and carbon neutrality).Based on data from the Second Shanghai Wetland Resource Survey,remote sensing interpretation,statistical records,and field investigations,this paper analyzes the resource endowments,spatial patterns,and ecological values of Shanghai's wetlands.The findings reveal that:(1)Shanghai possesses diverse wetland types with extensive coverage primarily consisting of offshore and coastal wetlands.The overall spatial arrangement follows a"ring and radial"pattern which forms a network centered on Chongming Dongtan,Jiuduansha,Dianshan Lake,and Nanhui Dongtan.(2)These wetlands contribute significantly to water conservation,flood regulation,carbon sequestration,and biodiversity maintenance with a total ecosystem service value exceeding 48 billion yuan annually.(3)The research suggests optimizing a functional layout that includes northern estuary conservation,southern coastal protection,western water source conservation,and central urban restoration.This paper also proposes management pathways such as Nature-based Solutions(NbS),ecological compensation mechanisms,and public participation.These results provide scientific evidence for wetland protection and the development of ecological security patterns within the context of the"dual carbon"strategy and the integration of the Yangtze River Delta.