Relationship Between Dams, Knickpoints and the Longitudinal Profile of the Upper Indus River

doi:10.3389/feart.2021.660996

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Relationship Between Dams, Knickpoints and the Longitudinal Profile of the Upper Indus River
	Zhou, Liqin 4,5,6; Liu, Weiming 5,6; Chen, Xiaoqing 6; Wang, Hao 3; Hu, Xudong 2; Li, Xuemei 6; Schwanghart, Wolfgang 1
刊名	FRONTIERS IN EARTH SCIENCE
	2021-07-30
卷号	9 页码:13
关键词	river longitudinal profile dams knickpoint steepness index upper Indus River
ISSN号	无
DOI	10.3389/feart.2021.660996
英文摘要	Mass movements in mountainous areas are capable of damming rivers and can have a lasting effect on the river longitudinal profile. The long profile is commonly used to retrieve regional tectonic information, but how much dams may compromise geomorphometry-based tectonic analysis has not been systematically researched. In this study, we investigate the relationship between river dams and the longitudinal profile of the upper Indus River basin, based on interpretation and analysis of remote sensing imagery and digital elevation models (DEMs) and local field work. We identified 178 landslide, glacier and debris flow dams. Using TopoToolbox, we automatically extracted the river longitudinal profile from the 30 m SRTM DEM, determined the location of convex knickpoints and calculated the channel steepness index. One hundred and two knickpoints were detected with heights above 148 m, of which 55 were related to dams. There is good spatial correspondence between dams, convexities in the river longitudinal profile and relatively high steepness index. Different dam types have different impacts on the river profile; on the upper Indus, debris flow dams have a greater impact than landslide and glacier dams and can form knickpoints of up to 900 m. Therefore, dams may have a significant influence on the river longitudinal profile, knickpoints and steepness index, and should be considered when extracting information on regional tectonics using these indices.
资助项目	Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0902f] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA 20030301] ; National Natural Science Foundation of China[42071017] ; National Natural Science Foundation of China[41771023]
WOS关键词	ROCK-UPLIFT RATES ; TIBETAN-PLATEAU ; KARAKORAM HIMALAYA ; INCISION ; LANDSLIDES ; TECTONICS ; BEDROCK ; TOPOGRAPHY ; AVALANCHES ; LANDSCAPE
WOS研究方向	Geology
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000684611700001
资助机构	Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/56251]
专题	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	Liu, Weiming
作者单位	1.Univ Potsdam, Inst Environm Sci & Geog, Potsdam, Germany 2.China Three Gorges Univ, Coll Civil Engn & Architecture, Hubei Key Lab Disaster Prevent & Mitigat, Yichang, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resource Res, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.CAS HEC, China Pakistan Joint Res Ctr Earth Sci, Islamabad, Pakistan 6.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Liqin,Liu, Weiming,Chen, Xiaoqing,et al. Relationship Between Dams, Knickpoints and the Longitudinal Profile of the Upper Indus River[J]. FRONTIERS IN EARTH SCIENCE,2021,9:13.
APA	Zhou, Liqin.,Liu, Weiming.,Chen, Xiaoqing.,Wang, Hao.,Hu, Xudong.,...&Schwanghart, Wolfgang.(2021).Relationship Between Dams, Knickpoints and the Longitudinal Profile of the Upper Indus River.FRONTIERS IN EARTH SCIENCE,9,13.
MLA	Zhou, Liqin,et al."Relationship Between Dams, Knickpoints and the Longitudinal Profile of the Upper Indus River".FRONTIERS IN EARTH SCIENCE 9(2021):13.