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Phosphorus in interstitial water induced by redox potential in sediment of Dianchi Lake, China
Li Qing-Man; Zhang Wen; Wang Xing-Xiang; Zhou Yi-Yong; Yang Hao; Ji Guo-Liang; Li, QM, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2007-12-01
Source PublicationPEDOSPHERE
ISSN1002-0160
Volume17Issue:6Pages:739-746
AbstractThe sediment redox potential was raised in the laboratory to estimate reduction of internal available phosphorus loads, such as soluble reactive phosphorus (SRP) and total phosphorus (TP), as well as the main elements of sediment extracts in Dianchi Lake. Several strongly reducing substances in sediments, which mainly originated from anaerobic decomposition of primary producer residues, were responsible for the lower redox potential. In a range of -400 to 200 mV raising the redox potential of sediments decreased TP and SRP in interstitial water. Redox potentials exceeding 320 mV caused increases in TP, whereas SRP maintained a relatively constant minimum level. The concentrations of Al, Fe, Ca2+, Mg2+, K+, Na+ and S in interstitial water were also related to the redox potential of sediments, suggesting that the mechanism for redox potential to regulate the concentration of phosphorus in interstitial water was complex.; The sediment redox potential was raised in the laboratory to estimate reduction of internal available phosphorus loads, such as soluble reactive phosphorus (SRP) and total phosphorus (TP), as well as the main elements of sediment extracts in Dianchi Lake. Several strongly reducing substances in sediments, which mainly originated from anaerobic decomposition of primary producer residues, were responsible for the lower redox potential. In a range of -400 to 200 mV raising the redox potential of sediments decreased TP and SRP in interstitial water. Redox potentials exceeding 320 mV caused increases in TP, whereas SRP maintained a relatively constant minimum level. The concentrations of Al, Fe, Ca2+, Mg2+, K+, Na+ and S in interstitial water were also related to the redox potential of sediments, suggesting that the mechanism for redox potential to regulate the concentration of phosphorus in interstitial water was complex.
SubtypeArticle
KeywordDianchi Lake Interstitial Water Phosphorus Redox Potential Sediment
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Subject AreaSoil Science
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaAgriculture
WOS SubjectSoil Science
WOS IDWOS:000251388200008
WOS KeywordREDUCING SUBSTANCES ; RELEASE RATES ; INTERFACE ; IRON ; INACTIVATION ; OXIDATION ; ALUMINUM ; EXCHANGE ; SULFATE
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8342
Collection期刊论文
Corresponding AuthorLi, QM, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li Qing-Man,Zhang Wen,Wang Xing-Xiang,et al. Phosphorus in interstitial water induced by redox potential in sediment of Dianchi Lake, China[J]. PEDOSPHERE,2007,17(6):739-746.
APA Li Qing-Man.,Zhang Wen.,Wang Xing-Xiang.,Zhou Yi-Yong.,Yang Hao.,...&Li, QM, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2007).Phosphorus in interstitial water induced by redox potential in sediment of Dianchi Lake, China.PEDOSPHERE,17(6),739-746.
MLA Li Qing-Man,et al."Phosphorus in interstitial water induced by redox potential in sediment of Dianchi Lake, China".PEDOSPHERE 17.6(2007):739-746.
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