[1]TANG Zhixiong,ZHOU Zixiang,BAI Jizhou,et al.Scale Seterogeneity of Ecosystem Service Trade-offs/Synergies in the Jinghe River Basin[J].Research of Soil and Water Conservation,2023,30(04):318-326.[doi:10.13869/j.cnki.rswc.2023.04.043.]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 04
Page number:
318-326
Column:
Public date:
2023-06-10
- Title:
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Scale Seterogeneity of Ecosystem Service Trade-offs/Synergies in the Jinghe River Basin
- Author(s):
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TANG Zhixiong1, ZHOU Zixiang1, BAI Jizhou2, FU Yuan1
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(1.College of Geomatics, Xi'an University of Science and Technology, Xi'an 710054, China; 2.School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China; )
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- Keywords:
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ecosystem services; trade-offs and synergy; SWAT model; CASA model; InVEST model; Jinghe River Basin
- CLC:
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X171
- DOI:
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10.13869/j.cnki.rswc.2023.04.043.
- Abstract:
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[Objective] The scale heterogeneity of ecosystem service trade-offs/synergies in Jinghe River Basin was investigated, and the main reasons for the change of trade-offs/synergies at sub-basin scale were elucidated, which could provide scientific reference for ecological protection and high-quality development in the Loess Plateau. [Methods] Soil and Water Assessment Tool(SWAT), Carnegie Ames-Stanford Approach(CASA)model, Integrated Valuation of Ecosystem Services and Tradeoffs(InVEST)model were used to quantify five kinds of ecosystem services(food supply, soil conservation, water yield, carbon sequestration, and habitat quality), and spatial correlation statistical method was used to study the scale heterogeneity of ecosystem service trade-offs/synergies at the whole basin and sub-basin scales. [Results](1)The food supply service in the Jinghe River Basin was stronger in the southeastern part of the basin. The soil conservation service was weaker in the northern and central parts of the basin, but stronger in the southwestern and southeastern parts of the basin. The water yield service was stronger in the western, southern and southeastern part of the basin, weaker in the north, northeast and eastern regions. The carbon sequestration service of the basin was stronger in the southern part than in the northern part, and in the eastern part than in the western part. The habitat quality was dominated by the median and high-value areas, and the high-value areas mainly distributed in the eastern part of the basin, southeast and west, low-value areas mainly distributed in construction land.(2)From the perspective of the whole basin scale, grain yield and soil conservation, water yield, NPP and habitat quality were mainly in trade-off relationship. Soil conservation and water yield, NPP and habitat quality were mainly in synergistic relationship. Water yield and NPP were mainly in synergistic relationship, and the trade-off relationship was the main one with the habitat quality. The NPP and the habitat quality were mainly based on the synergistic relationship.(3)The tradeoffs/synergies between ecosystem services in the Jinghe River Basin changed in some sub-basin, and land use change was the important reason for the changes in the tradeoffs/synergies. [Conclusion] Land use change is the main reason for the scale difference of ecosystem service trade-offs/synergies in the Jinghe River Basin. The research on ecosystem service trade-offs/synergies at multiple scales should be strengthened in the future.