[1]Zhao Chenguang,Li Peng,Xu Yaotao,et al.Suitability Evaluation of Water and Soil Resources and the Change Pattern of Influencing Factors of Spatial and Temporal Differentiation in Ningxia[J].Research of Soil and Water Conservation,2023,30(06):432-440.[doi:10.13869/j.cnki.rswc.2023.06.001]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 06
Page number:
432-440
Column:
Public date:
2023-10-10
- Title:
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Suitability Evaluation of Water and Soil Resources and the Change Pattern of Influencing Factors of Spatial and Temporal Differentiation in Ningxia
- Author(s):
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Zhao Chenguang1, Li Peng1,2, Xu Yaotao1, Dang Xiaohu3, Zhang Chaoya1, Gong Nibing1
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(1.State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China; 2.State Forestry Administration Key Laboratory of Eco-hydrology and Disaster Prevention in Arid Areas, Xi'an 710048, China; 3.College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China)
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- Keywords:
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suitability of soil and water resources; entropy weight TOPSIS; coupling coordination degree; grey correlation degree; Ningxia
- CLC:
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F323.211; F323.213
- DOI:
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10.13869/j.cnki.rswc.2023.06.001
- Abstract:
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[Objective] This study reveals the contribution of multi-system comprehensive evaluation of water and soil suitability of water and soil resources to regional development, clarifies the suitability evolution of coordinated development of water and soil resources in Ningxia, and identifies the influence factors of regional carrying capacity of water and soil resources. [Methods] A comprehensive evaluation system of resources, ecology, and social economy in Ningxia was built up. An entropy weight TOPSIS model, a coupling coordination degree model and a gray correlation degree model were used to evaluate the dynamic changes and coordinated development of water and soil resources in Ningxia in the past 20 years(2001—2020)and analyze the change rules of influencing factors. [Results] The suitability of water and soil resources in Ningxia had a trend from poor to good level and is currently at a high-quality level(0.883). The degrees of coupling and coordination between the sub-systems had increased from a serious imbalance(0.159)in 2001 to a high-quality coordination(0.946)in 2020. The resource evaluation system(0.729)had a higher correlation in the evaluation of the suitability of water and soil resources among the sub-systems and social evaluation system(0.721). [Conclusion] The coordinated development of sub-systems reflects the overall suitability of soil and water resources in Ningxia. In the future, more attention should be paid to the key factors in the social system, and the development and utilization of soil and water resources should be rationally allocated.