Effects of cascade reservoir systems on the longitudinal distribution of sediment characteristics: a case study of the Heihe River Basin

doi:10.1007/s11356-021-15760-y

	Effects of cascade reservoir systems on the longitudinal distribution of sediment characteristics: a case study of the Heihe River Basin
	Wang, Yu 1,2; Li, Bao-long 2; Liu, Juan-juan 2; Feng, Qi 1; Liu, Wei 1; Wang, Xu 2; He, Yu-hua 2
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2021-08
卷号	29 期号:2 页码:2911-2923
关键词	Heihe River Sediment Grain size distribution Cascade reservoir
ISSN号	0944-1344
DOI	10.1007/s11356-021-15760-y
英文摘要	Spatial variations in grain size parameters can reflect river sediment transport patterns and depositional dynamics. Therefore, 22 surficial sediment samples taken from the Heihe River and its cascade reservoirs were analyzed to better understand the impact of cascade reservoir construction on sediment transport patterns in inland rivers in China. The results showed that the longitudinal distribution of sediment grain size in the Heihe River was significantly affected by the influence of the cascade reservoirs. The retention rate in the cascade reservoir of the Heihe River reached 79% (193.53 Mt/year), which caused most of the fine sand to accumulate in the reservoir, and the sediment fining degree reached approximately 50%. However, the water discharged from the dam caused serious erosion of the riverbed and coarsening of the sediment, and the coarsening degree was approximately 500%. The backwater zone of the reservoir was influenced by both backwater and released water, and the coarsening degree of sediment was approximately 101%. Sedimentary environmental analysis revealed that the characteristics of the sediment grain size in an upstream tributary of the Heihe River were more influenced by source material than by hydrodynamic conditions, while the grain size characteristics of the mainstream sediments were controlled mainly by hydrodynamic conditions. The characteristics of sediment transport in different reaches of the Heihe River were studied, and the results may provide references for the operation of cascade reservoirs and the sediment control of reservoirs.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000684107900004
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148767]
专题	能源与动力工程学院
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China 2.Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Peoples R China;
推荐引用方式 GB/T 7714	Wang, Yu,Li, Bao-long,Liu, Juan-juan,et al. Effects of cascade reservoir systems on the longitudinal distribution of sediment characteristics: a case study of the Heihe River Basin[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021,29(2):2911-2923.
APA	Wang, Yu.,Li, Bao-long.,Liu, Juan-juan.,Feng, Qi.,Liu, Wei.,...&He, Yu-hua.(2021).Effects of cascade reservoir systems on the longitudinal distribution of sediment characteristics: a case study of the Heihe River Basin.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,29(2),2911-2923.
MLA	Wang, Yu,et al."Effects of cascade reservoir systems on the longitudinal distribution of sediment characteristics: a case study of the Heihe River Basin".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 29.2(2021):2911-2923.