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)
Source PublicationINTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
2018-09-01
Volume33Issue:3Pages:303-312
ISSN1001-6279
AbstractThe 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.
KeywordUpper Yellow River Sanhuhekou-Toudaoguai Reach Sediment deposition Incoming sediment coefficient Runoff Sediment loads
DOI10.1016/j.ijsrc.2018.03.003
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000443198500009
WOS KeywordSUSPENDED SEDIMENT ; LOESS PLATEAU ; EROSION ; IMPACTS ; RUNOFF ; TREND ; LOAD ; CONSERVATION ; DOWNSTREAM ; RESERVOIRS
WOS Research AreaEnvironmental Sciences ; Water Resources
WOS SubjectEnvironmental Sciences & Ecology ; Water Resources
Funding OrganizationNational Natural Science Foundation of China [11432015, 11202217]
ClassificationQ3
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77948
Collection流固耦合系统力学重点实验室
Affiliation1.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
Recommended Citation
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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