Characteristics of landslide in Koshi River Basin, Central Himalaya
文献类型:期刊论文
作者 | Zhang Jian-qiang1,2![]() ![]() |
刊名 | JOURNAL OF MOUNTAIN SCIENCE
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出版日期 | 2016-10-01 |
卷号 | 13期号:10页码:1711-1722 |
关键词 | Landslide Koshi River Basin Central Himalayas April 2015 Nepal earthquake |
ISSN号 | 1672-6316 |
通讯作者 | ZHANG Jian-qiang |
英文摘要 | Koshi River basin, which lies in the Central Himalayas with an area of 71,500 km(2), is an important trans-boundary river basin shared by China, Nepal and India. Yet, landslide-prone areas are all located in China and Nepal, imposing alarming risks of widespread damages to property and loss of human life in both countries. Against this backdrop, this research, by utilizing remote sensing images and topographic maps, has identified a total number of 6877 landslides for the past 23 years and further examined their distribution, characteristics and causes. Analysis shows that the two-step topography in the Himalayan region has a considerable effect on the distribution of landslides in this area. Dense distribution of landslides falls into two regions: the Lesser Himalaya (mostly small and medium size landslides in east-west direction) and the Transition Belt (mostly large and medium size landslides along the river in north-south direction). Landslides decrease against the elevation while the southern slopes of the Himalayas have more landslides than its northern side. Change analysis was carried out by comparing landslide distribution data of 1992, 2010 and 2015 in the Koshi River basin. The rainfall-induced landslides, usually small and shallow and occurring more frequently in regions with an elevation lower than 1000m, are common in the south and south-east slopes due to heavy precipitation in the region, and are more prone to the slope gradient of 20 degrees similar to 30 degrees. Most of them are distributed in Proterozoic stratum (Pt-3 epsilon, Pt-3 and Pt2-3) and Quaternary stratum. While for earthquake-induced landslides, they are more prone to higher elevations (2000 similar to 3000 m) and steeper slopes (40 degrees similar to 50 degrees). |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
类目[WOS] | Environmental Sciences |
研究领域[WOS] | Environmental Sciences & Ecology |
关键词[WOS] | LESSER HIMALAYA ; TRIGGERED LANDSLIDES ; NEPAL |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000386502400002 |
源URL | [http://ir.imde.ac.cn/handle/131551/17581] ![]() |
专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2016_Vol13 NO.10 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 成都山地灾害与环境研究所_山区发展研究中心 |
作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 3.Int Ctr Integrated Mt Dev, Kathmandu, Nepal 4.Tribhuvan Univ, Cent Dept Geog, Kathmandu, Nepal |
推荐引用方式 GB/T 7714 | Zhang Jian-qiang,Liu Rong-kun,Deng Wei,et al. Characteristics of landslide in Koshi River Basin, Central Himalaya[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(10):1711-1722. |
APA | Zhang Jian-qiang.,Liu Rong-kun.,Deng Wei.,Khanal, Narendra Raj.,Gurung, Deo Raj.,...&Wahid, Shahriar.(2016).Characteristics of landslide in Koshi River Basin, Central Himalaya.JOURNAL OF MOUNTAIN SCIENCE,13(10),1711-1722. |
MLA | Zhang Jian-qiang,et al."Characteristics of landslide in Koshi River Basin, Central Himalaya".JOURNAL OF MOUNTAIN SCIENCE 13.10(2016):1711-1722. |
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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