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Modeling and Assessment of Landslide Susceptibility of Dianchi Lake Watershed in Yunnan Plateau

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  • Guangshun Bai

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area, Ministry of Natural Resources of People’s Republic of China (MNR), Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area in Yunnan Province, Kunming 650093, China)

  • Xuemei Yang

    (Yunnan Gaozheng Geo-Exploration Co., Ltd., Kunming 650041, China)

  • Zhigang Kong

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area, Ministry of Natural Resources of People’s Republic of China (MNR), Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area in Yunnan Province, Kunming 650093, China)

  • Jieyong Zhu

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area, Ministry of Natural Resources of People’s Republic of China (MNR), Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area in Yunnan Province, Kunming 650093, China)

  • Shitao Zhang

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area, Ministry of Natural Resources of People’s Republic of China (MNR), Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area in Yunnan Province, Kunming 650093, China)

  • Bin Sun

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area, Ministry of Natural Resources of People’s Republic of China (MNR), Kunming 650093, China
    Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area in Yunnan Province, Kunming 650093, China)

Abstract

The nine plateau lake watersheds in Yunnan are important ecological security barriers in the southwest of China. The prevention and control of landslides are important considerations in the management of these watersheds. Taking the Dianchi Lake watershed as a typical research area, a comprehensive modeling and assessment process of landslide susceptibility was put forward. The comprehensive process was based on the weight of evidence (WoE) method, and many statistical techniques were integrated, such as cross-validation, multi-quantile cumulative Student’s comprehensive weight statistics, independence testing, step-by-step modeling, ROC analysis, and ROC-based susceptibility zoning. In this paper, fourteen models with high accuracy and validity were established, and the AUC reached 0.83–0.87 and 0.85–0.88, respectively. In addition, according to the susceptibility zoning map compiled via the optimal model, 80% of landslides can be predicted in the very-high- and high-susceptibility areas, which only account for 19.58% of the study area. Finally, this paper puts forward strategies for geological disaster prevention and ecological restoration deployment.

Suggested Citation

  • Guangshun Bai & Xuemei Yang & Zhigang Kong & Jieyong Zhu & Shitao Zhang & Bin Sun, 2023. "Modeling and Assessment of Landslide Susceptibility of Dianchi Lake Watershed in Yunnan Plateau," Sustainability, MDPI, vol. 15(21), pages 1-26, October.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:21:p:15221-:d:1266422
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    References listed on IDEAS

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    1. Jewgenij Torizin & Michael Fuchs & Adnan Alam Awan & Ijaz Ahmad & Sardar Saeed Akhtar & Simon Sadiq & Asif Razzak & Daniel Weggenmann & Faseeh Fawad & Nimra Khalid & Faisan Sabir & Ahsan Jamal Khan, 2017. "Statistical landslide susceptibility assessment of the Mansehra and Torghar districts, Khyber Pakhtunkhwa Province, Pakistan," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 89(2), pages 757-784, November.
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