Characteristics and influencing factors of sediment deposition-scour in the Sanhuhekou-Toudaoguai Reach of the upper Yellow River, China

doi:10.1016/j.ijsrc.2018.03.003

IMECH-IR > 流固耦合系统力学重点实验室

	Characteristics and influencing factors of sediment deposition-scour in the Sanhuhekou-Toudaoguai Reach of the upper Yellow River, China
	Yao B(姚波); Liu QQ(刘青泉)
发表期刊	INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
	2018-09-01
卷号	33 期号:3 页码:303-312
ISSN	1001-6279
摘要	The annual changes of sediment deposition-scour on the riverbed in the Sanhuhekou-Toudaoguai Reach of the upper Yellow River during the years 1952-2010 were investigated based on runoff and sediment transport observations from the Sanhuhekou and Toudaoguai hydrological stations. Multiple influencing factors such as reservoir operations, tributary inflows, as well as runoff and sediment loads from the Shidakongdui area were analyzed. The results show that even though the sediment loads from the major sources, the Shidakongdui area as well as the upstream tributaries such as the Qingshui River and the Zuli River have reduced especially since the 2000s as a result of enhanced water-soil conservation measures and improvement of vegetation cover, the study reach was still generally in a status of cumulative aggradation. This is mainly due to the joint operations of the Liujiaxia Reservoir and the Longyangxia Reservoir, which significantly reduced the annual runoff and sediment loads at the Sanhuhekou Crosssection. The reservoirs also remarkably altered the summer flood characteristics of the study reach, inducing the shape of the annual flow curve changing from a 'single-peak' into a 'double-peak'. These alternations sharply decreased the sediment transport capacity of flooding in the summer flood season which yields more than 90% of the sediment loads, leading to an unbalanced relation between the water and sediment. In addition, the estimated incoming sediment coefficient of the Sanhuhekou Crosssection ranged from 0.003 to 0.014 kg s/m(6), of which 0.004 kg s/m(6) was suggested as a rough critical value to determine the scour or deposition status of the study reach. (C) 2018 International Research and Training Centre on Erosion and Sedimentation/the World Association for Sedimentation and Erosion Research. Published by Elsevier B.V. All rights reserved.
关键词	Upper Yellow River Sanhuhekou-Toudaoguai Reach Sediment deposition Incoming sediment coefficient Runoff Sediment loads
DOI	10.1016/j.ijsrc.2018.03.003
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000443198500009
关键词[WOS]	SUSPENDED SEDIMENT ; LOESS PLATEAU ; EROSION ; IMPACTS ; RUNOFF ; TREND ; LOAD ; CONSERVATION ; DOWNSTREAM ; RESERVOIRS
WOS研究方向	Environmental Sciences ; Water Resources
WOS类目	Environmental Sciences & Ecology ; Water Resources
项目资助者	National Natural Science Foundation of China [11432015, 11202217]
论文分区	Q3
力学所作者排名	1
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/77948
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 2.Beijing Inst Technol, Sch Aerosp Engn, Dept Mech, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Yao B,Liu QQ. Characteristics and influencing factors of sediment deposition-scour in the Sanhuhekou-Toudaoguai Reach of the upper Yellow River, China[J]. INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,2018,33,3,:303-312.
APA	姚波,&刘青泉.(2018).Characteristics and influencing factors of sediment deposition-scour in the Sanhuhekou-Toudaoguai Reach of the upper Yellow River, China.INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,33(3),303-312.
MLA	姚波,et al."Characteristics and influencing factors of sediment deposition-scour in the Sanhuhekou-Toudaoguai Reach of the upper Yellow River, China".INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH 33.3(2018):303-312.

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