Integration of Spatial Probability and Size in Slope-Unit-Based Landslide Susceptibility Assessment: A Case Study

doi:10.3390/ijerph17218055

	Integration of Spatial Probability and Size in Slope-Unit-Based Landslide Susceptibility Assessment: A Case Study
	Li, Langping 2; Lan, Hengxing 1,2
刊名	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
	2020-11-01
卷号	17 期号:21 页码:17
关键词	landslide susceptibility assessment slope-unit spatial probability size integration
DOI	10.3390/ijerph17218055
通讯作者	Li, Langping(lilp@lreis.ac.cn)
英文摘要	Landslide spatial probability and size are two essential components of landslide susceptibility. However, in existing slope-unit-based landslide susceptibility assessment methods, landslide size has not been explicitly considered. This paper developed a novel slope-unit based approach for landslide susceptibility assessment that explicitly incorporates landslide size. This novel approach integrates the predicted occurrence probability (spatial probability) of landslides and predicted size (area) of potential landslides for a slope-unit to obtain a landslide susceptibility value for that slope-unit. The results of a case study showed that, from a quantitative point of view, integrating spatial probability and size in slope-unit-based landslide susceptibility assessment can bring remarkable increases of AUC (Area under the ROC curve) values. For slope-unit-based scenarios using the logistic regression method and the neural network method, the average increase of AUC brought by incorporating landslide size is up to 0.0627 and 0.0606, respectively. Slope-unit-based landslide susceptibility models incorporating landslide size had utilized the spatial extent information of historical landslides, which was dropped in models not incorporating landslide size, and therefore can make potential improvements. Nevertheless, additional case studies are still needed to further evaluate the applicability of the proposed approach.
资助项目	National Natural Science Foundation of China[41807291] ; National Natural Science Foundation of China[41525010] ; National Natural Science Foundation of China[41421001] ; National Natural Science Foundation of China[41941019] ; National Natural Science Foundation of China[41927806] ; National Natural Science Foundation of China[41790443] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0904] ; National Key R&D Program of China[2019YFC1520601] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA23090301] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA19040304] ; Key Research Program of Frontier Sciences of CAS[QYZDY-SSW-DQC019] ; Innovation Project of LREIS, CAS[O88RAA02YA] ; Youth Science Funds of LREIS, CAS[O8R8A082YA]
WOS关键词	2008 WENCHUAN EARTHQUAKE ; MAPPING UNITS ; INVENTORY ; AREA ; MODELS ; DELINEATION ; CATCHMENT ; ZONATION ; GIS
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种	英语
出版者	MDPI
WOS记录号	WOS:000588933200001
资助机构	National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of CAS ; Innovation Project of LREIS, CAS ; Youth Science Funds of LREIS, CAS
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156537]
专题	中国科学院地理科学与资源研究所
通讯作者	Li, Langping
作者单位	1.Changan Univ, Sch Geol Engn & Geomat, Xian 710064, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Li, Langping,Lan, Hengxing. Integration of Spatial Probability and Size in Slope-Unit-Based Landslide Susceptibility Assessment: A Case Study[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2020,17(21):17.
APA	Li, Langping,&Lan, Hengxing.(2020).Integration of Spatial Probability and Size in Slope-Unit-Based Landslide Susceptibility Assessment: A Case Study.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,17(21),17.
MLA	Li, Langping,et al."Integration of Spatial Probability and Size in Slope-Unit-Based Landslide Susceptibility Assessment: A Case Study".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 17.21(2020):17.