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Large-Scale Soil Erosion Estimation Considering Vegetation Growth Cycle

Author

Listed:
  • Hanchen Zhuang

    (Key Laboratory of VGE of Ministry of Education, Nanjing Normal University, Nanjing 210023, China)

  • Yixin Wang

    (Key Laboratory of VGE of Ministry of Education, Nanjing Normal University, Nanjing 210023, China)

  • Hang Liu

    (Key Laboratory of VGE of Ministry of Education, Nanjing Normal University, Nanjing 210023, China)

  • Sijia Wang

    (Key Laboratory of VGE of Ministry of Education, Nanjing Normal University, Nanjing 210023, China)

  • Wanqiu Zhang

    (Key Laboratory of VGE of Ministry of Education, Nanjing Normal University, Nanjing 210023, China)

  • Shuliang Zhang

    (Key Laboratory of VGE of Ministry of Education, Nanjing Normal University, Nanjing 210023, China
    Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China)

  • Qiang Dai

    (Key Laboratory of VGE of Ministry of Education, Nanjing Normal University, Nanjing 210023, China
    Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China)

Abstract

The Revised Universal Soil Loss Equation (RUSLE) was used to predict the potential soil erosion; it simply multiplies rainfall erosivity and land cover management factors; it does not consider the dynamics of these two factors during a given year or the effect of vegetation growth cycle on soil erosion estimates. This study developed a new method that considers the vegetation growth cycle in different periods of the year by matching monthly rainfall erosivity and a management factor using the entire surface of China as the study area. The data were input into the original equation, and the two methods to estimate soil erosion were compared. Finally, patterns and mechanisms of the influence of vegetation growth cycle on RUSLE estimations under different climatic conditions were obtained. The results show that vegetation coverage inhibits the effect of rainfall on soil erosion potential, which is related to the average and coefficient of variation of cover-management factor and the average of rainfall erosivity due to the significant variations in weather patterns in winter and summer in China. This article discusses the influence of the vegetation growth cycle on the estimation of large-scale soil erosion, which is a key to having a better estimation.

Suggested Citation

  • Hanchen Zhuang & Yixin Wang & Hang Liu & Sijia Wang & Wanqiu Zhang & Shuliang Zhang & Qiang Dai, 2021. "Large-Scale Soil Erosion Estimation Considering Vegetation Growth Cycle," Land, MDPI, vol. 10(5), pages 1-15, May.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:5:p:473-:d:547749
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    References listed on IDEAS

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    1. David Wuepper & Pasquale Borrelli & Robert Finger, 2020. "Countries and the global rate of soil erosion," Nature Sustainability, Nature, vol. 3(1), pages 51-55, January.
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