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Spatiotemporal distribution of total nitrogen and total phosphorus in sediments of Xiangxi Bay, Three Gorges Reservoir
Zhang Min (zhangmin01@ihb.ac.cn); Xu Yao-yang; Shao Mei-ling; Cai Qing-hua (qhcai@ihb.ac.cn); Zhang Min; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
2009
Source PublicationYingyong Shengtai Xuebao
ISSN1001-9332
Volume20Issue:11Pages:2799-2805
AbstractThe spatiotemporal distribution of total nitrogen (TN) and total phosphorus (TP) in sediments of Xiangxi Bay, Three Gorges Reservoir was investigated from October 2004 to July 2006, with related affecting factors analyzed. The TN and TP concentrations in the sediments were higher in the middle stretch but lower in the two edges of the Bay. The maximum value of TN concentration (1.08 mg.g(-1)) appeared in the middle part of the Bay, and the minimum (0.89 mg.g(-1)) occurred at the adjacent areas to the river mouth; while the maximum value of TP concentration (1.07 mg.g(-1)) appeared in the middle, and the minimum (0.80 mg.g(-1)) was in the edges of the Bay. The TN concentration decreased in the sequence of autumn-winter-spring, but increased from spring, to summer dramatically; while the seasonal variation of TP concentration was not very significant, with the maximum occurred in spring. Significant inter-annual variations were observed in the TN and TP concentrations. The spatial distributions of TN and TP concentrations were mainly affected by the sedimentation of suspended matter. In the regions where sedimentation rate was high, the TN and TP concentrations were also very high. The seasonal fluctuation of TN concentration was mainly affected by river discharge, while that of TP concentration was mainly affected by point source pollution.
Indexed By其他
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/18605
Collection期刊论文
Corresponding AuthorZhang Min; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Zhang Min ,Xu Yao-yang,Shao Mei-ling,et al. Spatiotemporal distribution of total nitrogen and total phosphorus in sediments of Xiangxi Bay, Three Gorges Reservoir[J]. Yingyong Shengtai Xuebao,2009,20(11):2799-2805.
APA Zhang Min ,Xu Yao-yang,Shao Mei-ling,Cai Qing-hua ,Zhang Min,&Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China.(2009).Spatiotemporal distribution of total nitrogen and total phosphorus in sediments of Xiangxi Bay, Three Gorges Reservoir.Yingyong Shengtai Xuebao,20(11),2799-2805.
MLA Zhang Min ,et al."Spatiotemporal distribution of total nitrogen and total phosphorus in sediments of Xiangxi Bay, Three Gorges Reservoir".Yingyong Shengtai Xuebao 20.11(2009):2799-2805.
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