[1]Xue Zenghui,Gao Yuyang,Lu Pingda,et al.Spatial Distribution and Tradeoff-Synergy-Independence Relationships of Ecosystem Services Based on Land Use and Topography[J].Research of Soil and Water Conservation,2024,31(02):240-251,263.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 02
Page number:
240-251,263
Column:
Public date:
2024-03-20
- Title:
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Spatial Distribution and Tradeoff-Synergy-Independence Relationships of Ecosystem Services Based on Land Use and Topography
- Author(s):
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Xue Zenghui1,2,3, Gao Yuyang1,2,3, Lu Pingda1,2,3, Zhou Jing1,2,3, Wang Kelin1,2,3, Zhang Bin1,2,3, Ma Yu1,2,3, Liu Mengyun1,2,3
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(1.College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.Northwest Key Laboratory of Low-Carbon Green Agriculture, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China; 3.Scientific Observing and Experimental Station of Arable Land Conservation(Heyang), Ministry of Agriculture and Rural Affairs, Heyang, Shaanxi 715300, China)
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- Keywords:
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Ansai District; ecosystem services; tradeoff-synergy-independence; InVEST model; CASA model; terrain factor; land use
- CLC:
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X171.1
- DOI:
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- Abstract:
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[Objective] Ecosystem degradation is becoming increasingly prominent, and it is of great significance to conduct research on the spatial distribution of ecosystem services and their related relationships for the construction of regional ecological civilization. [Methods] InVEST and CASA models were used to quantitatively evaluate soil conservation, carbon sequestration and oxygen release, water harvesting and habitat quality in Ansai District in 2020 and their trends with topography and land use change at 10 m spatial resolution, and to analyze the tradeoff-synergy-independence relationships among ecosystem services. [Results](1)Ecosystem services were stronger in forests and grasslands, but weaker in unused land and construction land. There were obvious synergies between arable land, forest land and grassland ecosystem services, while unused land showed a tradeoff role and water area shows an independent role.(2)The highest values of soil conservation were found at medium and low elevations, steep slopes and semi-shaded slopes. The highest values of carbon sequestration and oxygen release were found at middle and low elevations, steep slopes and shaded slopes. The highest values of water harvesting were at low elevations and sunny slopes. The highest values of habitat quality were found at high elevations, steep slopes and sunny slopes.(3)From the perspective of topography and land use, the overall performance of ecosystem services followd the order: synergism>independence>tradeoff. Synergies often occurred between soil conservation, carbon sequestration and oxygen release, and water harvesting, as well as the tradeoff between habitat quality and other ecosystem services was obvious.(4)The synergistic effect increased with elevation and slope orientation to the sun, and tended to increase and then decrease with slope elevation, while the tradeoff effect was the opposite. [Conclusion] Land use and topography have the great influence on ecosystem services. Land use planning and ecological management should be carried out according to the local conditions, which should basically prove not only the adaptability of the local ecological restoration measures for returning farmland to forest and grass with its topography and climate, but also the correctness of the decision.