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Impact of Land Use/Cover Changes on Soil Erosion by Wind and Water from 2000 to 2018 in the Qaidam Basin

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  • Xue Cao

    (The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences, Ministry of Education, Xianyang 712100, China
    Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Xianyang 712100, China
    University of Chinese Academy of Sciences, Beijing 100049, China
    School of Geographical Sciences, China West Normal University, Nanchong 637009, China)

  • Yuzhuo Cheng

    (The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences, Ministry of Education, Xianyang 712100, China
    Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Xianyang 712100, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Juying Jiao

    (The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences, Ministry of Education, Xianyang 712100, China
    Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Xianyang 712100, China
    University of Chinese Academy of Sciences, Beijing 100049, China
    Institute of Soil and Water Conservation, Northwest A&F University, Xianyang 712100, China)

  • Jinshi Jian

    (Institute of Soil and Water Conservation, Northwest A&F University, Xianyang 712100, China)

  • Leichao Bai

    (School of Geographical Sciences, China West Normal University, Nanchong 637009, China
    Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion in Dry Valleys, China West Normal University, Nanchong 637009, China
    Institute of Soil and Water Conservation, Northwest A&F University, Xianyang 712100, China)

  • Jianjun Li

    (Institute of Soil and Water Conservation, Northwest A&F University, Xianyang 712100, China)

  • Xiaowu Ma

    (Institute of Soil and Water Conservation, Northwest A&F University, Xianyang 712100, China)

Abstract

Assessing the impact of land use and land cover change (LUCC) on soil erosion by wind and water is crucial for improving regional ecosystem services and sustainable development. In this study, the Revised Wind Erosion Equation (RWEQ) and Revised Universal Soil Loss Equation (RUSLE) were used to reveal changes in the extent of soil erosion by wind and water in the Qaidam Basin from 2000 to 2018 and the impact of LUCC on them. From 2000 to 2018, with global climate change, the areas and intensities of soil erosion by wind decreased, whereas those of soil erosion by water increased. With increased human activities, approximately 12.96% of the total area underwent conversion of the type of use: the areas of cropland, woodland, grassland, and construction land increased, whereas the areas of shrubbery, desert, and other unused land decreased. Land use/cover changes are positive to the soil erosion of water but negative to the soil erosion of wind. Among them, the changes in vegetation coverage of other unused land and grassland contributed to 83.19% of the total reduction in soil erosion by water. Converting other unused land to grassland reduced the total reductions in soil erosion by wind by 94.69%. These results indicate that the increase in vegetative cover and area of grasslands in the Qaidam Basin had a positive impact on the reduction in soil erosion. It is recommended that the arrangement of grasses, shrubs, and trees be optimized to prevent compound erosion by wind and water for protecting regional ecological environments.

Suggested Citation

  • Xue Cao & Yuzhuo Cheng & Juying Jiao & Jinshi Jian & Leichao Bai & Jianjun Li & Xiaowu Ma, 2023. "Impact of Land Use/Cover Changes on Soil Erosion by Wind and Water from 2000 to 2018 in the Qaidam Basin," Land, MDPI, vol. 12(10), pages 1-19, September.
    • Handle: RePEc:gam:jlands:v:12:y:2023:i:10:p:1866-:d:1252144
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    References listed on IDEAS

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    1. Peggy Schrobback & David Adamson & John Quiggin, 2011. "Turning Water into Carbon: Carbon Sequestration and Water Flow in the Murray–Darling Basin," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 49(1), pages 23-45, May.
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