水土保持研究2024，Vol.31Issue(3)：391-400,10.DOI:10.13869/j.cnki.rswc.2024.03.028
环鄱阳湖城市群生态系统服务价值时空变化及权衡协同关系
Temporal and Spatial Variation of Ecosystem Service Value and Its Trade-offs and Synergies in the Urban Agglomeration Around Poyang Lake
摘要
Abstract
[Objective]This study aims to quantify and analyze the temporal and temporal changes of ecosystem service value in the urban agglomeration around Poyang Lake,and to explore the trade-off and synergy between ecosystem services,which provides decision-making reference for regional ecological environmental protection and restoration.[Methods]Based on the land use data of the Poyang Lake urban agglomeration in the years 2000,2010,and 2020,this study employed methods such as the Equivalent Service Value(ESV)factor approach,ecological contribution rate,and the ecosystem service balance and synergy model to investigate the spatiotemporal variations in the ecosystem service values(ESV)and the balanced and synergistic relationships among ecosystem services in the Poyang Lake urban agglomeration..[Results](1)In 2000,2010 and 2020,the ecosystem service value of the urban agglomeration around Poyang Lake was 416.350 billion yuan,421.953 billion yuan and 420.293 billion yuan,respectively.During the study period,the ESV of forestland was the largest,and the ESV of hydrological regulation was the largest among the single service functions.(2)The spatial distribution pattern of ESV was relatively stable,with the medium and high value grids distribution in large lakes,reservoirs and main roads of water systems,and the low value grids distribution in urban built-up areas and rural agglomeration areas with high cultivated land development.The areas with an increase in ESV were mainly in the periphery of Poyang Lake,and the areas with a decrease in ESV were in the urban built-up areas of Nanchang City,the northeast of Jiujiang City,Yingtan City and other districts and counties.(3)Water area contributed the most to ESV change,which was the main factor affecting the increase and decrease of ESV in the urban agglomeration around Poyang Lake.(4)The synergistic relationship was the dominant relationship between ecosystem services during the study period,and the trade-off relationship mainly existed between water supply,environmental purification,hydrological regulation and other ecosystem service functions.[Conclusion]Restoring and protecting waters,forests and grasslands,and strictly controlling the expansion of construction land are the effective measures to maintain the benign growth of ESV and ecological security of the urban agglomeration around Poyang Lake.关键词
生态系统服务价值/时空演变/贡献率/生态系统服务权衡协同度/环鄱阳湖城市群Key words
value of ecosystem service/spatiotemporal evolution/contribution rate/trade-offs in ecosystem service/urban agglomeration around Poyang Lake分类
资源环境引用本文复制引用
马舒意,黄小兰,黄晶..环鄱阳湖城市群生态系统服务价值时空变化及权衡协同关系[J].水土保持研究,2024,31(3):391-400,10.基金项目
国家自然科学基金(42061041,41561002) （42061041,41561002）
东华理工大学博士科研启动基金(DHBK2019404) （DHBK2019404）
