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Sedimentation of overbank floods in the confined complex channel-floodplain system of the Lower Yellow River, China
Zhang, Min1,2,3; Huang, He Qing1,2; Carling, Paul A.4; Zhang, Mingwu3
2017-09-30
Source PublicationHYDROLOGICAL PROCESSES
ISSN0885-6087
Volume31Issue:20Pages:3472-3488
Corresponding AuthorHuang, He Qing(huanghq@igsnrr.ac.cn)
AbstractThe channel boundary conditions along the Lower Yellow River (LYR) have been altered significantly since the 1950s with the continual reinforcement and construction of both main and secondary dykes and river training works. To evaluate how the confined complex channel-floodplain system of the LYR responds to floods, this study presents a detailed investigation of the relationship between the tempo-spatial distribution of sedimentation/erosion and overbank floods occurred in the LYR. For large overbank floods, we found that when the sediment transport coefficient (ratio of sediment concentration of flow to flow discharge) is less than 0.034, the bankfull channel is subject to significant erosion, whereas the main and secondary floodplains both accumulate sediment. The amount of sediment deposited on the main and secondary floodplains is closely related to the ratio of peak discharge to bankfull discharge, volume of water flowing over the floodplains, and sediment concentration of overbank flow, whereas the degree of erosion in the bankfull channel is related to the amount of sediment deposited on the main and secondary floodplains, water volume, and sediment load in flood season. The significant increase in erosion in the bankfull channel is due to the construction of the main and secondary dykes and river training works, which are largely in a wide and narrow alternated pattern along the LYR such that the water flowing over wider floodplains returns to the channel downstream after it drops sediment. For small overbank floods, the bankfull channel is subject to erosion when the sediment transport coefficient is less than 0.028, whereas the amount of sediment deposited on the secondary floodplain is associated closely with the sediment concentration of flow. Over the entire length of the LYR, the situation of erosion in the bankfull channel and sediment deposition on the main and secondary floodplains occurred mainly in the upper reach of the LYR, in which a channel wandering in planform has been well developed.
Keywordchannel-floodplain interaction erosion Lower Yellow River overbank floods sedimentation
DOI10.1002/hyp.11260
WOS KeywordUPPER MISSISSIPPI RIVER ; AMAZON RIVER ; EXTREME FLOOD ; HUANGHE RIVER ; RATES ; DEPOSITION ; PLAIN ; PATTERNS ; BASIN ; STORAGE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41330751] ; National Natural Science Foundation of China[51509101] ; National Key R&D Program of China[2016YFC0402502] ; Central Government for Non-profit Research Institutes[HKY-JBYW-2017-05]
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China ; Central Government for Non-profit Research Institutes
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000410745000002
PublisherWILEY
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/61903
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHuang, He Qing
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Yellow River Water Conservancy Commiss, Inst Hydraul Res, Minist Water Resources, Key Lab Yellow River Sediment, Zhengzhou 450003, Henan, Peoples R China
4.Univ Southampton, Geog & Environm, Univ Rd, Southampton SO17 1BJ, Hants, England
Recommended Citation
GB/T 7714
Zhang, Min,Huang, He Qing,Carling, Paul A.,et al. Sedimentation of overbank floods in the confined complex channel-floodplain system of the Lower Yellow River, China[J]. HYDROLOGICAL PROCESSES,2017,31(20):3472-3488.
APA Zhang, Min,Huang, He Qing,Carling, Paul A.,&Zhang, Mingwu.(2017).Sedimentation of overbank floods in the confined complex channel-floodplain system of the Lower Yellow River, China.HYDROLOGICAL PROCESSES,31(20),3472-3488.
MLA Zhang, Min,et al."Sedimentation of overbank floods in the confined complex channel-floodplain system of the Lower Yellow River, China".HYDROLOGICAL PROCESSES 31.20(2017):3472-3488.
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