IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleSpatial pattern of debris-flow catchments and the rainfall amount of triggering debris flows in the Hengduan Mountains region
胡凯衡1,2; 魏丽1,2,3; 刘双1,2; 李秀珍1,2
Source Publication地理学报
Contribution Rank1
Other AbstractEnvironmental factors determine the spatial and temporal distribution of debris flows. Understanding the relationship between debris flows and their effective factors is important for debris flows risk assessment at regional scale. In this paper, geographic detectors and gray correlation analysis are used to explore the relationship between 11 influencing factors, including precipitation, climate, landforms, geology, land cover type, soil thickness and topographic wetness, and the spatial distribution of debris flows-prone catchments, as well as the spatial and temporal correlation between precipitation and debris flows disasters in the Hengduan Mountains region. The results show that the topographic wetness index is the most dominant factor controlling the spatial distribution of the catchments, followed by topographic relief and soil thickness. Temporal correlation between debris flows disasters and precipitation characteristics has large regional heterogeneity. The rainfall characteristics of debris flows disaster events in different regions exhibit significant difference. The frequency of debris flows with rainfall, topographic wetness, topographic relief and soil thickness in the Hengduan Mountains region varies significantly in different zones, which indicates that not only the rainfall but also the other factors controlling the spatial pattern of debris flows should be reflected in debris flows early warning model in the region.
Keyword泥石流灾害 环境因子 降雨特征 地理探测器 灰色关联分析
Indexed ByEI ; CSCD
EI Accession NumberAccession number:20195007811391
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author胡凯衡
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
胡凯衡,魏丽,刘双,等. 横断山区泥石流空间格局和激发雨量分异性研究[J]. 地理学报,2019,74(11):2303-2313.
APA 胡凯衡,魏丽,刘双,&李秀珍.(2019).横断山区泥石流空间格局和激发雨量分异性研究.地理学报,74(11),2303-2313.
MLA 胡凯衡,et al."横断山区泥石流空间格局和激发雨量分异性研究".地理学报 74.11(2019):2303-2313.
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