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The incision variations of Poiqu documented by the Zhangmu landslide in the Upper Himalaya of Tibet
Chen Ningsheng1; Liu Mei1,2; Deng Mingfeng1; Iqbal Javed3; Hu Guisheng1; Wahid Shahriar5; Liu Weiming1; Han Dawei4
Corresponding AuthorChen, Ningsheng(
Contribution Rank1
AbstractAiming at the rate and causes of the incision variations in the upper Himalaya Orogenic belt of Tibet, a new method of incision rate estimation based on the analysis of the evolution of Zhangmu landslide and its spatial and temporal relationship with the surrounding gullies is applied. The research results are: (1) The Zhangmu landslide was an ancient huge landslide, occurred at 24.2 +/- 2.4 ka BP, consisting of an ancient bedrock landslide and subsequent deposit landslides, with an area of 1.23 km(2), and remaining volume of 23.4 x 10(6) m(3). (2) The fluvial incision rate shows variations in Poiqu and its branch, which may be controlled by the discharge and decreases from the Poiqu (11.5 +/- 1.2 mm/a) to the tributaries, from 4.8 +/- 0.5 mm/a in the Bangcundong gully to 2.4 +/- 0.2 mm/a in Zhangmu gully. (3) The fluvial incision rate also shows temporal variations in the Poiqu. There are two periods of low rate and high rate incision processes in the Poiqu, while the section shape transforms from a gentle slope to a cliff. In the low rate period from 24.2 ka BP to 10.0 ka BP in the Poiqu valley, the incision rate was 10.4 +/- 1.0 mm/a, while the high fluvial incision rate since 10.0 ka BP was 13.0 +/- 1.3 mm/a; (4) The fluvial incision promotes the landscape evolution and triggers the potential landslide in thousands of years.
KeywordZhangmu landslide Incision rate Incision variation ESR dating The upper Himalaya Landscape evolution
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[41861134008] ; National Natural Science Foundation of China[41661134012] ; Chinese Academy of Sciences (CAS) ; AusAID Koshiprogram[3-912-149-0-P]
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000502533000006
Funding OrganizationNational Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) ; AusAID Koshiprogram
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Document Type期刊论文
Corresponding AuthorChen Ningsheng
Affiliation1.Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China;
2.University of Chinese Academy of Sciences, Beijing, China;
3.Department of Earth Sciences, COMSATS Institute of Information Technology, 22060, Abbottabad, Pakistan;
4.Department of Civil Engineering, University of Bristol, Bristol, BS6 7TF, UK;
5.International Centre for Integrated Mountain Development Khumaltar, Lalitpur Kathmandu, Nepal
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Chen Ningsheng,Liu Mei,Deng Mingfeng,et al. The incision variations of Poiqu documented by the Zhangmu landslide in the Upper Himalaya of Tibet[J]. QUATERNARY INTERNATIONAL,2019,532:66-74.
APA Chen Ningsheng.,Liu Mei.,Deng Mingfeng.,Iqbal Javed.,Hu Guisheng.,...&Han Dawei.(2019).The incision variations of Poiqu documented by the Zhangmu landslide in the Upper Himalaya of Tibet.QUATERNARY INTERNATIONAL,532,66-74.
MLA Chen Ningsheng,et al."The incision variations of Poiqu documented by the Zhangmu landslide in the Upper Himalaya of Tibet".QUATERNARY INTERNATIONAL 532(2019):66-74.
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