Risk Analysis of Debris Flow hazardsin Yanbian Prefecture Based on Information Quantity Method

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Fang, Jinpeng^1 ; Quan, Hechun^1

School of Yanbian University, Yanji, China^1

关键词: Debris flow hazards;    Debris flows;    Information amount;    Information quantity;    Sample data;    Study areas;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022051/pdf
DOI  :  10.1088/1755-1315/300/2/022051

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Taking the Yanbian Prefecture as the study area, this paper selects 8 influencing factors: elevation, slope, slope direction, precipitation, river, lithology, fault and land use. Taking 163 debris flow points as sample data, information quantity method and GIS platform are introduced to calculate the information amount of each influence due to sub classification. The risk assessment and analysis of debris flow were carried out, and the risk assessment and analysis map of debris flow in Yanbian was drawn. The results show that the areas where the debris flow hazard is more dangerous are in good agreement with the historical debris flow, and the accuracy of the methods and factors used in this paper is verified.