Suitability analysis for topographic factors in loess landslide research: a case study of Gangu County, China

doi:10.1007/s12665-018-7462-y

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	Suitability analysis for topographic factors in loess landslide research: a case study of Gangu County, China
	Niu, Quanfu1,2,3 ; Dang, Xinghai1 ; Li, Yuefeng 1; Zhang, Yingxue 1; Lu, Xiaolin 1; Gao, Wenxing 1
	2018-04-01
发表期刊	Environmental Earth Sciences
ISSN	18666280
卷号	77 期号:7
摘要	Loess Plateau is one of the ecologically fragile regions in China. It is one of the slippery strata of which landslides often developed. The formation and development of landslides are mainly affected by various natural environments, triggering factors, the vulnerability of landslide-bearing bodies, and topography has a controlling effect on landslides and determines landslide distribution. As important environmental elements, the selection and reclassification of topographic factors are the basis for loess landslide vulnerability map. In this study, our research suggests an effective workflow to select and analyze the topographic factors in the loess landslides. Nine hazard-formative environmental factors [e.g., slope, aspect, slope shape (SS), slope of slope (SOS), slope of aspect (SOA), surface amplitude (SA), surface roughness (SR), incision depth (ID) and elevation variation coefficient (EVC)] are prepared for landslide suitability analysis. The models of certainty factor, sensitivity index and correlation coefficient are combined to select and analyze the suitability of these factors. Four topographic factors (i.e., slope, SOS, SS and SR) were ultimately selected to carry out the landslide vulnerability mapping with other factors. Our results showed that most of the landslides were located in medium and high classes and accounting for 75.3%, and these places also coincided with higher economies and intense human activities. Our research also suggested that in situ measurements are necessary to determine how to reclassify these topographic factors and how many grades these topographic factors divided, which would further improve the reliability of landslide vulnerability map for the decision makers to deal with the possible future landslides in terms of safety and human activities. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
关键词	Decision making Landslides Models Sediments Surface roughness Topography Correlation coefficient Ecologically fragile regions Landslide distributions Loess Suitability analysis Topographic factor Variation coefficient Vulnerability mappings
DOI	10.1007/s12665-018-7462-y
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000429985900023
出版者	Springer Verlag
EI入藏号	20181605014995
EI主题词	Factor analysis
EI分类号	483 Soil Mechanics and Foundations ; 912.2 Management ; 922.2 Mathematical Statistics ; 931.2 Physical Properties of Gases, Liquids and Solids ; 951 Materials Science
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150548
专题	土木工程学院企业单位划归国资委人员
通讯作者	Niu, Quanfu
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China; 2.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA; 3.Univ Oklahoma, Ctr Spatial Anal, Norman, OK 73019 USA
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Niu, Quanfu,Dang, Xinghai,Li, Yuefeng,et al. Suitability analysis for topographic factors in loess landslide research: a case study of Gangu County, China[J]. Environmental Earth Sciences,2018,77(7).
APA	Niu, Quanfu,Dang, Xinghai,Li, Yuefeng,Zhang, Yingxue,Lu, Xiaolin,&Gao, Wenxing.(2018).Suitability analysis for topographic factors in loess landslide research: a case study of Gangu County, China.Environmental Earth Sciences,77(7).
MLA	Niu, Quanfu,et al."Suitability analysis for topographic factors in loess landslide research: a case study of Gangu County, China".Environmental Earth Sciences 77.7(2018).