气候变化领域集成服务门户(CCPortal): Effects of cascade reservoir systems on the longitudinal distribution of sediment characteristics: a case study of the Heihe River Basin

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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; Li, Bao-long; Liu, Juan-juan; Feng, Qi; Liu, Wei; Wang, Xu; He, Yu-hua
发表日期	2021
ISSN	0944-1344
EISSN	1614-7499
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.
英文关键词	Heihe River; Sediment; Grain size distribution; Cascade reservoir
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS关键词	GRAIN-SIZE CHARACTERISTICS ; LOWER MEKONG RIVER ; 3 GORGES DAM ; YANGTZE-RIVER ; GANSU PROVINCE ; NITROUS-OXIDE ; CHINA ; IMPACTS ; TRANSPORT ; DISCHARGE
WOS记录号	WOS:000684107900004
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239432
作者单位	[Wang, Yu; Li, Bao-long; Liu, Juan-juan; Wang, Xu; He, Yu-hua] Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Peoples R China; [Wang, Yu; Feng, Qi; Liu, Wei] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, 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]. 中国科学院西北生态环境资源研究院,2021.
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.
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 (2021).