000032329 001__ 32329
000032329 041__ $$aEnglish
000032329 100__ $$aZhang, J.-Q.
000032329 245__ $$aCharacteristics of Landslide in Koshi River Basin, Central Himalaya
000032329 260__ $$c2016
000032329 300__ $$a1711-1722
000032329 507__ $$aNarendra Raj Khanal, Deo Raj Gurung, MSR Murthy, Shahriar Wahid, ICIMOD staff, peerreviewed, servier
000032329 511__ $$aKoshi, Report, kbProject
000032329 520__ $$aKoshi River basin, which lies in the Central Himalayas with an area of 71,500 km2, 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°~30°. Most of them are distributed in Proterozoic stratum (Pt3e, Pt3 and Pt2-3) and Quaternary stratum. While for earthquake-induced landslides, they are more prone to higher elevations (2000~3000 m) and steeper slopes (40°~50°).
000032329 653__ $$aLandslide
000032329 653__ $$aKoshi
000032329 653__ $$aRiver Basin
000032329 653__ $$aCentral Himalayas
000032329 653__ $$aApril 2015 Nepal Earthquake
000032329 700__ $$aLiu, R.-K.
000032329 700__ $$aDeng, W.
000032329 700__ $$aKhanal, N. R.
000032329 700__ $$aGurung, D. R.
000032329 700__ $$aMurthy, M. S. R.
000032329 700__ $$aWahid, S.
000032329 773__ $$pJournal of Mountain Science
000032329 773__ $$v13 (10)
000032329 773__ $$a10.1007/s11629-016-4017-0
000032329 8564_ $$uhttp://dx.doi.org/10.1007/s11629-016-4017-0$$yExternal link
000032329 980__ $$aARTICLE