[1]ZHU Junjun,GAO Zhoubing,WANG Junxiao,et al.Spatiotemporal Changes and Trade-off/Synergy Relationship of Ecosystem Services in Nanjing Metropolitan Area[J].Research of Soil and Water Conservation,2023,30(03):383-394.[doi:10.13869/j.cnki.rswc.2023.03.037]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 03
Page number:
383-394
Column:
Public date:
2023-04-10
- Title:
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Spatiotemporal Changes and Trade-off/Synergy Relationship of Ecosystem Services in Nanjing Metropolitan Area
- Author(s):
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ZHU Junjun1,2, GAO Zhoubing1,2, WANG Junxiao1,2, LIAO Kaihua3, LYU Ligang1,2
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(1.School of Public Administration, Nanjing University of Finance and Economics, Nanjing 210023, China; 2.Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing 210017, China; 3.Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China)
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- Keywords:
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ecosystem services; InVEST model; trade-off/synergy relationship; spatiotemporal changes; Nanjing Metropolitan Area
- CLC:
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X171.1
- DOI:
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10.13869/j.cnki.rswc.2023.03.037
- Abstract:
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[Objective]A comprehensive understanding of the characteristics of spatiotemporal patterns of ecosystem services and their interrelationships can enrich theories related to ecosystem services and sustainable development, and provide important guidance for the formulation of regional ecological and environmental management policies. [Methods] Taking the Nanjing metropolitan area as the study area, we analyzed the differences of the capacity of each type of ecosystem service in land use types and regions based on the assessment of four types of ecosystem services from 2000 to 2020, including water production, food supply, soil conservation and carbon sequestration, assessed the capacity of service provisioning in different regions by identifying ecosystem service hotspots and their service types, and explored the static and dynamic trade-offs/synergies between ecosystem services in Nanjing Metropolitan Area by using correlation analysis. [Results] In the years 2000, 2010 and 2020, the three-year average amounts of water production, food production, soil conservation and carbon sequestration in the Nanjing Metropolitan Area were 522.12 mm, 4.20 t/hm2, 42.61 t/hm2 and 44.57 t/hm2, respectively, with all services increasing year by year except for carbon sequestration. The spatial distributions of water production, soil conservation and carbon sequestration services were relatively high in the south and low in the north, while that of food supply service was low in the south and high in the north, depending on the type of land use and the natural environment of the region. From north to south, a 1-fold service hotspot with food supply services, a 2-fold service hotspot with water production and food supply services, and a 3-fold service hotspot with water production, soil conservation and carbon sequestration services were formed in turn. The trade-off/synergy results obtained by using the static and dynamic approaches were different. [Conclusion] In the work of territorial spatial planning and ecological restoration of the Nanjing Metropolitan Area, the spatiotemporal changes of different ecosystem services and their relationships should be considered to reduce the trade-off between different services and maximize ecological benefits.