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  4. 山地表生过程与生态调控重点实验室
How size and trigger matter: analyzing rainfall- and earthquake-triggered landslide inventories and their causal relation in the Koshi River basin, central Himalaya

文献类型：期刊论文

作者Zhang, Jianqiang1,2; van Westen, Cees J.2; Tanyas, Hakan2; Mavrouli, Olga2; Ge, Yonggang1; Bajrachary, Samjwal3; Gurung, Deo Raj3; Dhital, Megh Raj4; Khanal, Narendral Raj5
刊名NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
出版日期2019-08-15
卷号19期号:8页码:1789-1805
ISSN号1561-8633
DOI10.5194/nhess-19-1789-2019
通讯作者Zhang, Jianqiang(zhangjq@imde.ac.cn)
英文摘要Inventories of landslides caused by different triggering mechanisms, such as earthquakes, extreme rainfall events or anthropogenic activities, may show different characteristics in terms of distribution, contributing factors and frequency-area relationships. The aim of this research is to study such differences in landslide inventories and the effect they have on landslide susceptibility assessment. The study area is the watershed of the transboundary Koshi River in the central Himalaya, shared by China, Nepal and India. Detailed landslide inventories were generated based on visual interpretation of remote-sensing images and field investigation for different time periods and triggering mechanisms. Maps and images from the period 1992 to 2015 were used to map 5858 rainfall-triggered landslides, and after the 2015 Gorkha earthquake, an additional 14 127 coseismic landslides were mapped. A set of topographic, geological and land cover factors were employed to analyze their correlation with different types and sizes of landslides. The frequency-area distributions of rainfall-and earthquake-triggered landslides (ETLs) have a similar cutoff value and power-law exponent, although the ETLs might have a larger frequency of a smaller one. In addition, topographic factors varied considerably for the two triggering events, with both altitude and slope angle showing significantly different patterns for rainfall-triggered and earthquake-triggered landslides. Landslides were classified into two size groups, in combination with the main triggering mechanism (rainfall-or earthquake-triggered). Susceptibility maps for different combinations of landslide size and triggering mechanism were generated using logistic regression analysis. The different triggers and sizes of landslide data were used to validate the models. The results showed that susceptible areas for small- and large-size rainfall-and earthquake-triggered landslides differed substantially.
WOS关键词2008 WENCHUAN EARTHQUAKE ; LOGISTIC-REGRESSION ; MOUNTAIN BELT ; SUSCEPTIBILITY ; EROSION ; SEDIMENT ; TOPOGRAPHY ; PREDICTION ; EVOLUTION ; DATABASE
资助项目National Natural Science Foundation of China[41401007] ; External Cooperation Program of BIC, Chinese Academy of Sciences[131551KYSB20130003] ; 135 Program of IMHE[SDS-135-1708] ; Australian-government ; government of Afghanistan ; government of Australia ; government of Austria ; government of Bangladesh ; government of Bhutan ; government of China ; government of India ; government of Myanmar ; government of Nepal ; government of Norway ; government of Pakistan ; government of Switzerland ; government of UK
WOS研究方向Geology ; Meteorology & Atmospheric Sciences ; Water Resources
语种英语
WOS记录号WOS:000481730900002
出版者COPERNICUS GESELLSCHAFT MBH
资助机构National Natural Science Foundation of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; 135 Program of IMHE ; Australian-government ; government of Afghanistan ; government of Australia ; government of Austria ; government of Bangladesh ; government of Bhutan ; government of China ; government of India ; government of Myanmar ; government of Nepal ; government of Norway ; government of Pakistan ; government of Switzerland ; government of UK
源URL[http://ir.imde.ac.cn/handle/131551/26964]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者Zhang, Jianqiang
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu, Sichuan, Peoples R China
2.Univ Twente, Fac Geoinformat Sci & Earth Observat ITC, Enschede, Netherlands
3.Int Ctr Integrated Mt Dev ICIMOD, Lalitpur, Nepal
4.Dept Geol, Trichandra Multiple Campus, Kathmandu, Nepal
5.Tribhuvan Univ, Cent Dept Geog, Kathmandu, Nepal
推荐引用方式
GB/T 7714		 Zhang, Jianqiang,van Westen, Cees J.,Tanyas, Hakan,et al. How size and trigger matter: analyzing rainfall- and earthquake-triggered landslide inventories and their causal relation in the Koshi River basin, central Himalaya[J]. NATURAL HAZARDS AND EARTH SYSTEM SCIENCES,2019,19(8):1789-1805.
APA Zhang, Jianqiang.,van Westen, Cees J..,Tanyas, Hakan.,Mavrouli, Olga.,Ge, Yonggang.,...&Khanal, Narendral Raj.(2019).How size and trigger matter: analyzing rainfall- and earthquake-triggered landslide inventories and their causal relation in the Koshi River basin, central Himalaya.NATURAL HAZARDS AND EARTH SYSTEM SCIENCES,19(8),1789-1805.
MLA Zhang, Jianqiang,et al."How size and trigger matter: analyzing rainfall- and earthquake-triggered landslide inventories and their causal relation in the Koshi River basin, central Himalaya".NATURAL HAZARDS AND EARTH SYSTEM SCIENCES 19.8(2019):1789-1805.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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