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The spatial and temporal distribution of nitrate and phosphate in the Xiangxi Bay, three gorge reservoir region during the spring bloom period
Ye Lin; Xu Yao-Yang; Cai Qing-Hua (qhcai@ihb.ac.cn); Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
2006
Source PublicationActa Hydrobiologica Sinica
ISSN1000-3207
Volume30Issue:1Pages:75-79
AbstractField survey was carried out at 14 sites along the Xiangxi Bay, which had been the former Xiangxi River Prior to the construction of Three-Gorge Reservoir, during a spring phytoplankton bloom (2, Feb. -28, Apr., 2005 The sampling sites distributed from the mouth of Xiangxi River (where adjacent to the Yangtze River) to the head of the Xiangxi Bay.And field survey was performed every six days, and the water was sampled and preserved with pH < 2 Using H2SO4. The concentrations of nitrate and phosphate of the water sample were analyzed by the Segmented Flow Analyzers (Skalar, Netherlands) using the standard methods. The results showed a legible representation For the spatial and temporal distribution of the nitrate and phosphate. In the spatial, the concentration of nitrate was high in the mouth of the Xiangxi River and low in the head water of the Xiangxi Bay. And the concentration of nitrate was decreased with the distance increased from the mouth of the Xiangxi River. The spatial pattern of phosphate was reverse to the nitrate. The concentration of the phosphate was low in the mouth of the Xiangxi River and high in the head water of the Xiangxi Bay. The concentration of the phosphate was increased with the distance increased from the mouth of the Xiangxi River. The spatial distribution of nitrate and phosphate may indicated that nitrate diffusion from the Yangtze River and phosphate diffusion front the head water of the Xiangxi Bay were the main factor driving the spatial pattern of nitrate and phosphate in the Xiangxi Bay. In the temporal, the variation of the concentration of nitrate in the sites near the mouth of the Xiangxi River was small, and the variation in the head water of Xiangxi Bay was large. With the distance from the mouth of Xiangxi River increased, the variation of nitrate was increased. A large variation of the concentration of phosphate WaS found in the middle reach of Xiangxi Bay (S04-S08).
Indexed By其他
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/18435
Collection期刊论文
Corresponding AuthorYe Lin; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Ye Lin,Xu Yao-Yang,Cai Qing-Hua ,et al. The spatial and temporal distribution of nitrate and phosphate in the Xiangxi Bay, three gorge reservoir region during the spring bloom period[J]. Acta Hydrobiologica Sinica,2006,30(1):75-79.
APA Ye Lin,Xu Yao-Yang,Cai Qing-Hua ,&Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China.(2006).The spatial and temporal distribution of nitrate and phosphate in the Xiangxi Bay, three gorge reservoir region during the spring bloom period.Acta Hydrobiologica Sinica,30(1),75-79.
MLA Ye Lin,et al."The spatial and temporal distribution of nitrate and phosphate in the Xiangxi Bay, three gorge reservoir region during the spring bloom period".Acta Hydrobiologica Sinica 30.1(2006):75-79.
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