Phosphorus speciation, transformation and retention in the Three Gorges Reservoir, China

doi:10.1071/MF14344

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋生态研究中心

	Phosphorus speciation, transformation and retention in the Three Gorges Reservoir, China
	Ran, Xiang-bin 1,2; Chen, Hong-tao 1; Wei, Jun-feng 1; Yao, Qing-zhen 1; Mi, Tie-zhu 3; Yu, Zhi-gang 1
刊名	MARINE AND FRESHWATER RESEARCH
	2016
卷号	67 期号:2 页码:173-186
关键词	Changjiang River (Yangtze River) particle size fractions phosphorus forms
ISSN号	1323-1650
DOI	10.1071/MF14344
英文摘要	Damming of river systems allowing the transformation of former rivers into artificial lakes will increase the transformation and retention of dissolved and sediment-associated phosphorus (P). The reservoir is therefore a 'filter' or 'converter', reducing and delaying the transport of nutrients to marine systems. Our study of the Three Gorges Reservoir (TGR) found that no stratification of phosphorus occurred, and the high particulate phosphorus (PP) concentrations upstream decreased gradually in the reservoir. Detrital P was found in greater concentrations in the surface sediment, accounting for 39% of PP; exchangeable P was rare and contributed very little to the total P budget. P forms and their concentrations in the suspended particulate matter varied throughout the TGR, with a significant increase of bioavailable P in the, 8-mu m particle fraction from 27% of PP in Fuling to 60% in Yichang, and decreasing detrital P and authigenic P in each grain size class. The TGR acted as a 'converter' for the dissolved reactive phosphorus, and it therefore plays a minor role in trapping incoming total dissolved phosphorus; whereas the TGR behaved as a 'filter' for the PP, especially for the coarse fraction, which resulted in the retention of 70% of the non-bioavailable PP. The controlling mechanism of P species and retention in the reservoir is particulate settling and its associated effects.
资助项目	Natural Science Foundation of China[41106072] ; Natural Science Foundation of China[30490232]
WOS研究方向	Fisheries ; Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	CSIRO PUBLISHING
WOS记录号	WOS:000369301100002
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3541]
专题	业务部门_海洋生态研究中心
作者单位	1.Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China; 2.State Ocean Adm, Inst Oceanog 1, Res Ctr Marine Ecol, Qingdao 266061, Peoples R China; 3.Ocean Univ China, Coll Environm Sci & Technol, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Ran, Xiang-bin,Chen, Hong-tao,Wei, Jun-feng,et al. Phosphorus speciation, transformation and retention in the Three Gorges Reservoir, China[J]. MARINE AND FRESHWATER RESEARCH,2016,67(2):173-186.
APA	Ran, Xiang-bin,Chen, Hong-tao,Wei, Jun-feng,Yao, Qing-zhen,Mi, Tie-zhu,&Yu, Zhi-gang.(2016).Phosphorus speciation, transformation and retention in the Three Gorges Reservoir, China.MARINE AND FRESHWATER RESEARCH,67(2),173-186.
MLA	Ran, Xiang-bin,et al."Phosphorus speciation, transformation and retention in the Three Gorges Reservoir, China".MARINE AND FRESHWATER RESEARCH 67.2(2016):173-186.