Bai, G.; Yang, X.; Kong, Z.; Zhu, J.; Zhang, S.; Sun, B. Modeling and Assessment of Landslide Susceptibility of Dianchi Lake Watershed in Yunnan Plateau. Sustainability2023, 15, 15221.
Bai, G.; Yang, X.; Kong, Z.; Zhu, J.; Zhang, S.; Sun, B. Modeling and Assessment of Landslide Susceptibility of Dianchi Lake Watershed in Yunnan Plateau. Sustainability 2023, 15, 15221.
Bai, G.; Yang, X.; Kong, Z.; Zhu, J.; Zhang, S.; Sun, B. Modeling and Assessment of Landslide Susceptibility of Dianchi Lake Watershed in Yunnan Plateau. Sustainability2023, 15, 15221.
Bai, G.; Yang, X.; Kong, Z.; Zhu, J.; Zhang, S.; Sun, B. Modeling and Assessment of Landslide Susceptibility of Dianchi Lake Watershed in Yunnan Plateau. Sustainability 2023, 15, 15221.
Abstract
The nine plateau lake watersheds in Yunnan are important ecological security barriers for southwest China, and the prevention and control of landslides are important considerations in the management of these watersheds. Taking Dianchi Lake watershed as a typical study area, this paper puts forward an improved comprehensive process of landslide susceptibility evalua-tion, and discusses the model’s sensitivity regarding susceptibility to landslides. The compre-hensive process is based on the weight of evidence method (WoE) and integrates many analyti-cal techniques, such as cross-validation, multi-quantile cumulative Student’s comprehensive weight analysis, independence tests, step-by-step modeling, ROC analysis and ROC-based sus-ceptibility zoning. This paper established fourteen models, with high accuracy and validity AUC, reaching 0.83-0.87 and 0.85-0.88, respectively. Moreover, according to the susceptibility zoning map compiled using the optimal model, 80% of landslides can be predicted in the very high and high susceptibility zones, which only account for 19.58% of the study area. Finally, the strategies for geological disaster prevention and ecological restoration deployment were put forward, providing great guiding significance for deeply understanding the landslide susceptibility of lake watersheds (Dianchi Lake) in Yunnan Plateau and guiding the planning and deployment of landslide prevention and mitigation activities and ecological restoration in the watershed.
Keywords
landslide susceptibility assessment; weight of evidence (WoE) method; modeling; Yunnan Plateau Lake watershed; Dianchi Lake watershed
Subject
Environmental and Earth Sciences, Geophysics and Geology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
