IMHE OpenIR  > 山地灾害与地表过程重点实验室
Weights-of-evidence method based on GIS for assessing susceptibility to debris flows in Kangding County, Sichuan Province, China
Chen, Xingzhang1; Chen, Hui1; You, Yong2; Chen, Xiaoqing2; Liu, Jinfeng2
Corresponding AuthorChen, Xingzhang
2016
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
EISSN1866-6299
Volume75Issue:1Pages:DOI:10.1007/s12665-015-5033-z
SubtypeArticle
AbstractAssessing susceptibility to debris flows is of great importance for hazard prevention and mitigation. Kangding County, a region with a high occurrence of destructive geological events, was selected as the study area, to evaluate the area's susceptibility to debris flows using the weights-of-evidence method based on ArcGIS. First, the determination method of training points was revised. The unit cells covered by the debris flow catchments were set as the training points, rather than using one point to represent the debris flow catchment. Then, the landforms, lithology, faults, earthquakes, and river systems were selected as evidential themes for the analysis. The optimum buffer zones cutoff distance of the faults and rivers was determined by the maximum studentized value of the contrast. Finally, the map of the susceptibility to debris flow in Kangding County was obtained by combining the evidential themes. The susceptibility was categorized as low, moderate, and high susceptibility. The low-susceptibility zones cover an area of 6253 km(2), accounting for 53.93 % of the county area. The moderate-susceptibility zones cover an area of 3323 km(2), accounting for 28.67 % of the county area. The high-susceptibility zones cover an area of 2018 km(2), accounting for 17.40 % of the county area. The moderate-susceptibility zones surround the high-susceptibility zones. The assessment results agree well with field data, demonstrating that the revised method is more suitable for debris flow assessment than the previous method. The assessment results can be used as guidelines for policy makers regarding prevention and mitigation of debris flow hazards.
KeywordDebris Flows Weights-of-evidence Method Susceptibility Assessment Geographic Information Systems Kangding County
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s12665-015-5033-z
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Geology ; Water Resources
Indexed BySCI
WOS KeywordEVIDENCE MODEL ; LANDSLIDE SUSCEPTIBILITY ; REGION ; DEPOSITS ; GEOLOGY ; AREA
Language英语
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000370239800070
Funding OrganizationNational Natural Science Foundation of China(41372301) ; National Science and Technology Support Program(2012BAC06B02)
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/15112
Collection山地灾害与地表过程重点实验室
Affiliation1.Southwest Univ Sci & Technol, Sch Environm & Resource, Mianyang 621010, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xingzhang,Chen, Hui,You, Yong,et al. Weights-of-evidence method based on GIS for assessing susceptibility to debris flows in Kangding County, Sichuan Province, China[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(1):DOI:10.1007/s12665-015-5033-z.
APA Chen, Xingzhang,Chen, Hui,You, Yong,Chen, Xiaoqing,&Liu, Jinfeng.(2016).Weights-of-evidence method based on GIS for assessing susceptibility to debris flows in Kangding County, Sichuan Province, China.ENVIRONMENTAL EARTH SCIENCES,75(1),DOI:10.1007/s12665-015-5033-z.
MLA Chen, Xingzhang,et al."Weights-of-evidence method based on GIS for assessing susceptibility to debris flows in Kangding County, Sichuan Province, China".ENVIRONMENTAL EARTH SCIENCES 75.1(2016):DOI:10.1007/s12665-015-5033-z.
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