Fine sediment particle microscopic characteristics, bioavailable phosphorus and environmental effects in the world largest reservoir

doi:10.1016/j.envpol.2020.114917

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Fine sediment particle microscopic characteristics, bioavailable phosphorus and environmental effects in the world largest reservoir
	Wang, Xiaoxiao 2; Zhou, Jun 3; Wu, Yanhong 3; Bol, Roland 1; Wu, Yong 2; Sun, Hongyang 3; Bing, Haijian 3
刊名	ENVIRONMENTAL POLLUTION
	2020-10-01
卷号	265 页码:114917
关键词	Phosphorus Sediments Grain sizes Water environment Three gorges reservoir
ISSN号	0269-7491
DOI	10.1016/j.envpol.2020.114917
通讯作者	Wang, Xiaoxiao(wxx1989@cwnu.edu.cn)
产权排序	2
文献子类	Article
英文摘要	The transport and retention of sediments in fine grain sizes plays an important role in the cycles of phosphorus (P), and is closely related to the extent and potential for eutrophication in water reservoirs. In order to highlight the environmental indications for the transport of fine sediment particles and the associated bioavailable phosphorus (Bio-P) in the world largest reservoir, the Three Gorges Reservoir (TGR), the suspended and bed sediments were collected at 13 sections in 2016. The sediment physicochemical properties, micromorphology of sediment particles, distribution of elements on particle surface, P adsorption parameters, and P fractions in different grain sized sediments were analyzed. The results showed that the fine sediment particles had a strong P adsorption ability due to their micromorphology, mineral compositions, and the high contents of Fe/Al/Mn (hydr)oxides, which contributed a higher concentration of Bio-P in <16 mm sediment particles. The adsorption of P on the sediment particles occurred longitudinally along the TGR, and the fine sediment particles (<16 mm) dominated the transport and distribution of Bio-P in the TGR sediments. The reduced inflow and retention of fine sediment particles, caused by the construction of cascade reservoirs along the Jinsha River (upper reach of the Yangtze River), has resulted in the decrease in the retention of Bio-P in the TGR. Therefore, we conclude that the continuously decrease of inflow and retention of the fine sediment particles in the TGR, and with it a reduced sediment P buffer capacity, may enhance algal blooms occurrence also in view of the increased P discharge from the overall TGR catchment. The study results can contribute to improved management guidance on fine sediment particles and associated phosphorus for the operation and environmental protection of other large reservoirs in the world. (C) 2020 Elsevier Ltd. All rights reserved.
电子版国际标准刊号	1873-6424
资助项目	Start-up funds for doctoral research of China West Normal University[412654] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017424] ; CAS Light ofWest China Program ; Science and Technology Service Network Initiative of Chinese Academy of Sciences[KFJ-EW-STS-008]
WOS关键词	3 GORGES RESERVOIR ; YANGTZE-RIVER ; PARTICULATE PHOSPHORUS ; ADSORPTION ; WATER ; MORPHOLOGY ; CHANGJIANG ; CHINA ; MAINSTREAM ; SIMULATION
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000607212800003
资助机构	Start-up funds for doctoral research of China West Normal University ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; CAS Light ofWest China Program ; Science and Technology Service Network Initiative of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/55252]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Wang, Xiaoxiao
作者单位	1.Forschungszentrum Julich, Inst Bio & Geosci, Agrosphere, D-52428 Julich, Germany 2.China West Normal Univ, Sch Land & Resources, 1 Shida Rd, Nanchong 637009, Peoples R China 3.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaoxiao,Zhou, Jun,Wu, Yanhong,et al. Fine sediment particle microscopic characteristics, bioavailable phosphorus and environmental effects in the world largest reservoir[J]. ENVIRONMENTAL POLLUTION,2020,265:114917.
APA	Wang, Xiaoxiao.,Zhou, Jun.,Wu, Yanhong.,Bol, Roland.,Wu, Yong.,...&Bing, Haijian.(2020).Fine sediment particle microscopic characteristics, bioavailable phosphorus and environmental effects in the world largest reservoir.ENVIRONMENTAL POLLUTION,265,114917.
MLA	Wang, Xiaoxiao,et al."Fine sediment particle microscopic characteristics, bioavailable phosphorus and environmental effects in the world largest reservoir".ENVIRONMENTAL POLLUTION 265(2020):114917.