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The phosphorus release pathways and their mechanisms driven by organic carbon and nitrogen in sediments of eutrophic shallow lakes
Li, Hui1; Song, Chun-Lei2; Cao, Xiu-Yun2; Zhou, Yi-Yong2
2016-12-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume572Pages:280-288
AbstractTo reveal phosphorus (P) release pathways from sediment and their mechanisms induced by organic matter enrichment, 116 sampling sites (including surface water and sediment) in 29 shallow lakes with different eutrophic degrees in Wuhan city, China, were investigated from July 2011 to November 2011. Empirical relationship and structural equation model indicated that the decomposition of total organic matter (TOM), including proteins (PRT), carbo-hydrates (CHO) and lipids (especially PRT) mediated by extracellular enzymes, accelerated the formation of anaerobic status. On the other hand, coupled nitrification-denitrification caused by ammonium (NH4+-N) accumulation due to PRT decomposition further aggravated anaerobic status and nitrate removal in terms of the increase of dehydrogenase activity (DHA). As a consequence, ferric iron was reduced to ferrous iron and soluble reactive phosphorus (SRP) was released from iron-bound phosphorus (Fe(OOH)similar to P) in sediments. In addition, extracellular alkaline phosphatase can be induced by organic carbon and nitrogen on condition that the input of nitrogen (N) and carbon (C) exceeded by far that of P. Taken together, enrichment of N and C can result in P release through the formation of anaerobic status and alkaline phosphatase production. Hence, we indicated that a close coupling existed among C, N and P cycles. (C) 2016 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordSediment Extracellular Enzymes Phosphorus Release Organic Matter Eutrophic Shallow Lakes
DOI10.1016/j.scitotenv.2016.07.221
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China(41230748 ; National Natural Science Foundation of China(41230748 ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07103003) ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07103003) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; 41173081 ; 41173081 ; 41273089) ; 41273089) ; National Natural Science Foundation of China(41230748 ; National Natural Science Foundation of China(41230748 ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07103003) ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07103003) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; 41173081 ; 41173081 ; 41273089) ; 41273089)
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS KeywordEXTRACELLULAR ENZYMATIC-ACTIVITIES ; ALKALINE-PHOSPHATASE ; TROPHIC STATE ; NUTRIENT LIMITATION ; MARINE-SEDIMENTS ; WATER SEDIMENTS ; POLYMICTIC LAKE ; MATTER ; DECOMPOSITION ; STOICHIOMETRY
WOS IDWOS:000387807200029
Funding OrganizationNational Natural Science Foundation of China(41230748 ; National Natural Science Foundation of China(41230748 ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07103003) ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07103003) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; 41173081 ; 41173081 ; 41273089) ; 41273089) ; National Natural Science Foundation of China(41230748 ; National Natural Science Foundation of China(41230748 ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07103003) ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07103003) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; 41173081 ; 41173081 ; 41273089) ; 41273089)
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/28670
Collection水环境工程研究中心
Affiliation1.Tong Ren Univ, Coll Biol & A&F Engn, Tong Ren 554300, Guizhou Provinc, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu South Rd, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Li, Hui,Song, Chun-Lei,Cao, Xiu-Yun,et al. The phosphorus release pathways and their mechanisms driven by organic carbon and nitrogen in sediments of eutrophic shallow lakes[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,572:280-288.
APA Li, Hui,Song, Chun-Lei,Cao, Xiu-Yun,&Zhou, Yi-Yong.(2016).The phosphorus release pathways and their mechanisms driven by organic carbon and nitrogen in sediments of eutrophic shallow lakes.SCIENCE OF THE TOTAL ENVIRONMENT,572,280-288.
MLA Li, Hui,et al."The phosphorus release pathways and their mechanisms driven by organic carbon and nitrogen in sediments of eutrophic shallow lakes".SCIENCE OF THE TOTAL ENVIRONMENT 572(2016):280-288.
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