Landslide Susceptibility Assessment in Jinning District, Kunming City, Yunnan Province Based on Multi-Model Comparison

Authors

  • Baobao Yu Anhui Survey & Design Institute of Water Resources & Hydropower Co., Ltd., Hefei, Anhui, 230088, China
  • Yuefei Wang School of Earth and Environment, Anhui University of Science&Technology, Huainan, Anhui, 232001, China

DOI:

https://doi.org/10.54097/hd5fz844

Keywords:

Landslide Susceptibility, Support Vector Machine, XGBoost, Decision Tree, Convolutional Neural Network, Random Forest, Geological Disaster

Abstract

Landslides occur frequently in Jinning District of Kunming City, Yunnan Province, where complex geological conditions make susceptibility assessment a challenging task. In this study, 13 evaluation factors were selected and five machine learning models—Support Vector Machine (SVM), eXtreme Gradient Boosting (XGB), Decision Tree (DT), Convolutional Neural Network (CNN), and Random Forest (RF)—were applied to map landslide susceptibility. Pearson correlation coefficients were calculated to examine the relationships among factors, and model performance was compared using AUC, Accuracy, Precision, Recall, F1-Score, and MCC. The susceptibility maps were then divided into five classes so that the area and landslide proportions of each zone could be compared. Among the five models, XGB achieved the best overall performance, with an AUC of 0.9106 and an MCC of 0.6059. Its very high susceptibility zone covers 13.07% of the study area yet contains 52.33% of the recorded landslides, a concentration that no other model matched. Elevation, slope, and distance to rivers were positively correlated with susceptibility and can be regarded as the dominant controlling factors. These findings offer a scientific reference for landslide risk management in Jinning District and confirm that machine learning models are effective for geological disaster susceptibility assessment.

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References

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Published

07-10-2026

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