[1]Ma Shuyi,Huang Xiaolan,Huang Jing.Temporal and Spatial Variation of Ecosystem Service Value and Its Trade-offs and Synergies in the Urban Agglomeration Around Poyang Lake[J].Research of Soil and Water Conservation,2024,31(03):391-400.[doi:10.13869/j.cnki.rswc.2024.03.028]
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Temporal and Spatial Variation of Ecosystem Service Value and Its Trade-offs and Synergies in the Urban Agglomeration Around Poyang Lake
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 03
Page number:
391-400
Column:
Public date:
2024-04-30
- Title:
- Temporal and Spatial Variation of Ecosystem Service Value and Its Trade-offs and Synergies in the Urban Agglomeration Around Poyang Lake
- Keywords:
- value of ecosystem service; spatiotemporal evolution; contribution rate; trade-offs in ecosystem service; urban agglomeration around Poyang Lake
- CLC:
- X826
- DOI:
- 10.13869/j.cnki.rswc.2024.03.028
- 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.
- References:
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Last Update:
2024-04-30