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The low TN : TP ratio, a cause or a result of Microcystis blooms?
Liqiang Xie; Ping Xie; Sixin Li; Huijuan Tang; Hong Liu; Xie, P, Wuhan Univ, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol,Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
2003
Source PublicationWATER RESEARCH
Volume37Issue:9Pages:2073-2080
AbstractAn enclosure experiment in the shallow, subtropical Lake Donghu, China, was performed in the summer of 2001 to examine the effect of TN:TP (total phosphorus) ratios and P-reduction on the occurrence of Microcysitis blooms. The treatments were performed with enough amounts of N but with different amounts of P in the water column and sediment. Microcystis blooms occurred in the enclosures either with an initial TN:TP <29 or TN:TP >29 where the nutrients (N, P) were high enough. Microcysitis blooms never occurred in the treatments with low P concentration in spite of the presence of sufficient N. The P-rich sediments served as an important source for the P supply in the water column, and such a process was activated greatly by the outburst of Microcystis blooms which pumped up selectively P from the sediments and thus decreased the TN:TP ratios. Therefore, the low TN:TP ratio is not a cause but rather a result of Microcystis blooms. (C) 2002 Elsevier Science Ltd. All rights reserved.
KeywordTn : Tp Ratios Microcystis Blooms Enclosures Water And Sediments P-reduction
DepartmentWuhan Univ, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol,Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
Subject AreaEngineering ; Environmental ; Environmental Sciences ; Water Resources
Indexed BySCI
WOS IDWOS:000182421600011
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9704
Collection期刊论文
Corresponding AuthorXie, P, Wuhan Univ, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol,Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Liqiang Xie,Ping Xie,Sixin Li,et al. The low TN : TP ratio, a cause or a result of Microcystis blooms?[J]. WATER RESEARCH,2003,37(9):2073-2080.
APA Liqiang Xie,Ping Xie,Sixin Li,Huijuan Tang,Hong Liu,&Xie, P, Wuhan Univ, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol,Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China.(2003).The low TN : TP ratio, a cause or a result of Microcystis blooms?.WATER RESEARCH,37(9),2073-2080.
MLA Liqiang Xie,et al."The low TN : TP ratio, a cause or a result of Microcystis blooms?".WATER RESEARCH 37.9(2003):2073-2080.
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