Susceptibility Evaluation of Debris Flow Based on Experience Weight Method Combined with "3S" Technology: A Case Study from Dongchuan in Yunnan Province, China

World Multidisciplinary Earth Sciences Symposium 2017

Xu, Jun^1 ; Cheng, Xianfeng^1 ; Huang, Qianrui^1 ; Chen, Yu^2 ; Qi, Wufu^1 ; Yuan, Jia^1 ; Yang, Jiaqing^1

Yunnan Land and Resources Vocational College, Kunming, Yunnan

652501, China^1

Institute of Remote Sensing and Digital Earth Chinese, Academy of Sciences, Beijing

100094, China^2

关键词: Debris flows;    Debris-flow susceptibilities;    Geological background;    Mining activities;    Susceptibility evaluations;    Weight methods;    Yunnan province;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/95/2/022051/pdf
DOI  :  10.1088/1755-1315/95/2/022051

来源: IOP

【 摘 要 】

Dongchuan, located in Yunnan Province, China, is well known as "debris flow museum" in the world because of its special geological background and intensive mining activities. There are more than 100 ravines of debris flow in the area of 1859 km2, which have caused disastrous damages. Regional gullies for debris flow susceptibility evaluation can play an important role in reducing damage of debris flows in Dongchuan. In this paper, we selected Dongchuan as a case study to research the susceptibility evaluation of debris flow based on experience weight method combined with "3s" technology. The result shows that most of debris flow gullies in Dongchuan face high risk, while few face moderate risk or very high risk.