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学科主题: Environmental Sciences; Geosciences, Multidisciplinary; Water Resources
题名: Phosphorus in suspended matter and sediments of a hypertrophic lake. A case study: Lake Dianchi, China
作者: Hu Jun2; Liu Jiantong1; Liu Yongding1
通讯作者: Liu, JT, Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China
关键词: Phosphorus ; Suspended matter ; Sediment ; Fractionation ; Cyanobacterial bloom ; Lake Dianchi
刊名: ENVIRONMENTAL GEOLOGY
发表日期: 2009-08-01
DOI: 10.1007/s00254-008-1559-7
卷: 58, 期:4, 页:833-841
收录类别: SCI
文章类型: Article
部门归属: [Liu Jiantong; Liu Yongding] Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China; [Hu Jun] Minist Water Resources, Inst Hydroecol, Wuhan, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
资助者: National Basic Research Project of China [2009CB118705]
类目[WOS]: Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
研究领域[WOS]: Environmental Sciences & Ecology ; Geology ; Water Resources
摘要: From June 2004 to December 2004, Lake Dianchi, which had large scale of cyanobacterial blooms was investigated in order to study P-fractionation in the suspended matter and the sediment. The investigation improves our understanding of phosphorus in Lake Dianchi and the relationship between phosphorus and cyanobacterial blooms. It contributes to the available literature on the behavior of P in hypertrophic lakes. The distribution of P-fractions in Lake Dianchi was not uniform from northwest to south, but was closely related to the trophic status of the whole lake. The concentrations of total phosphorus, labile P (NH4Cl-P), Organic P (NaOH-NRP) and loss on ignition in suspended matter were positively correlated with the strength of cyanobacterial blooms. Total phosphorus in suspended matter was relatively stable for almost half an year and closely related to Chl. a concentration. The main content of organic phosphorus is in the cyanobacterial blooms. The concentrations of phosphorus bound to metal oxides and carbonates (NaOH-SRP and HCl-P) in sediment were similar to NaOH-SRP and HCl-P in the corresponding suspended matter. The latter two forms of P in suspended matter were not affected by cyanobacterial blooms, indicating that the inorganic phosphorus is derived from the sediment after resuspension from the sediment due to wind and wave action. The contribution of the different P-fractions to TP in sediment and in suspended matter indicates that NH4Cl-P in the suspended matter is an important buffer for maintaining dissolved phosphorus in water.
英文摘要: From June 2004 to December 2004, Lake Dianchi, which had large scale of cyanobacterial blooms was investigated in order to study P-fractionation in the suspended matter and the sediment. The investigation improves our understanding of phosphorus in Lake Dianchi and the relationship between phosphorus and cyanobacterial blooms. It contributes to the available literature on the behavior of P in hypertrophic lakes. The distribution of P-fractions in Lake Dianchi was not uniform from northwest to south, but was closely related to the trophic status of the whole lake. The concentrations of total phosphorus, labile P (NH(4)Cl-P), Organic P (NaOH-NRP) and loss on ignition in suspended matter were positively correlated with the strength of cyanobacterial blooms. Total phosphorus in suspended matter was relatively stable for almost half an year and closely related to Chl. a concentration. The main content of organic phosphorus is in the cyanobacterial blooms. The concentrations of phosphorus bound to metal oxides and carbonates (NaOH-SRP and HCl-P) in sediment were similar to NaOH-SRP and HCl-P in the corresponding suspended matter. The latter two forms of P in suspended matter were not affected by cyanobacterial blooms, indicating that the inorganic phosphorus is derived from the sediment after resuspension from the sediment due to wind and wave action. The contribution of the different P-fractions to TP in sediment and in suspended matter indicates that NH(4)Cl-P in the suspended matter is an important buffer for maintaining dissolved phosphorus in water.
关键词[WOS]: RELEASE ; ERKEN ; RESUSPENSION ; PARTICLES ; BOTTOM ; POOLS ; RIVER
语种: 英语
WOS记录号: WOS:000268543900013
ISSN号: 0943-0105
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7636
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China
2.Minist Water Resources, Inst Hydroecol, Wuhan, Peoples R China

Recommended Citation:
Hu Jun; Liu Jiantong; Liu Yongding.Phosphorus in suspended matter and sediments of a hypertrophic lake. A case study: Lake Dianchi, China,ENVIRONMENTAL GEOLOGY,2009,58(4):833-841
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