Affiliation:
1. School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
2. National Institute of Natural Hazards, Ministry of Emergency Management of China, Beijing 100085, China
3. Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China
Abstract
The eastern Himalayan syntaxis region is located on the eastern edge of the Qinghai–Tibet Plateau, and it is one of the regions with the most intense geological tectonic activity in the world. There have been many large-scale landslides in the eastern Himalayan syntaxis region and the distribution of these landslides is of great significance for the inversion of regional tectonic activity strength, major engineering construction and urban–rural planning. However, no researchers have systematically studied all these landslides of this area. In this study, based on Google Earth satellite imagery, landslides were identified using artificial visual interpretation. Then, we analysed 11 landslide-influencing factors were selected, comprising topographic factors (elevation, slope, aspect, curvature), geological environmental factors (strata, distance to faults, distance to water, distance to roads, normalized difference vegetation index), inducing factors (peak ground acceleration, rainfall), the relationships between the distribution law of landslides and influencing factors. Finally, we used the logistic regression model, the weight of evidence model and the weight of evidence–logistic regression coupled model to evaluate the landslide susceptibility.
Funder
National Natural Science Foundation of China
Natural Science Research Project of Guizhou Province
National Key Research and Development Program of China
Publisher
Geological Society of London