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Release of reactive phosphorus from sediments in Dongting Lake linked with the Yangtze River
Liang, Tao1,2; Tong, Yali1,2; Wang, Xiahui3; Wang, Lingqing1,2
2017
Source PublicationENVIRONMENTAL CHEMISTRY
ISSN1448-2517
Volume14Issue:1Pages:48-54
Corresponding AuthorWang, Lingqing(wanglq@igsnrr.ac.cn)
AbstractInternal phosphorus (P) loading is regarded as a major eutrophication factor and may prevent improvements in lake water quality. Two new in situ passive sampling techniques, high-resolution pore-water equilibrators (HR-Peeper) and zirconium oxide-based diffusive gradients in thin films (Zr-oxide DGT), were combined to measure dissolved reactive phosphorus (DRP) (C-Peeper) and labile phosphorus (C-DGT) at five sites in South Dongting and West Dongting Lakes. The vertical distribution of C-Peeper and C-DGT displayed similarity, which demonstrated that the buffering capacity of the labile P in sediments was similar at different depths. The diffusion flux of P from the sediments at the sediment-water interface ranged from 1.9 to 88 ng m(-2) day(-1), with an average value of 38 ng m(-2) day(-1). The P flux at the entrances to the Yuan, Li and Zi Rivers was fairly large at all five sites. The sediments at the five sites released P into overlying water, indicating that the sediments are an important source of P for Dongting Lake.
Keyworddiffusion flux dissolved reactive phosphorous (DRP) high-resolution pore water equilibrators (HR-Peeper) labile phosphorus zirconium oxide-based diffusive gradients in thin films (Zr-oxide-DGT)
DOI10.1071/EN16072
WOS KeywordHIGH-RESOLUTION ; PORE-WATER ; IN-SITU ; DIFFUSIVE GRADIENTS ; LABILE PHOSPHORUS ; THIN-FILMS ; IRON ; CHINA ; EUTROPHICATION ; DISTRIBUTIONS
Indexed BySCI
Language英语
Funding ProjectNational Key Project for Basic Research[2012CB417004]
Funding OrganizationNational Key Project for Basic Research
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS SubjectChemistry, Analytical ; Environmental Sciences
WOS IDWOS:000392205800006
PublisherCSIRO PUBLISHING
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/65167
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Lingqing
Affiliation1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Environm Planning, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Liang, Tao,Tong, Yali,Wang, Xiahui,et al. Release of reactive phosphorus from sediments in Dongting Lake linked with the Yangtze River[J]. ENVIRONMENTAL CHEMISTRY,2017,14(1):48-54.
APA Liang, Tao,Tong, Yali,Wang, Xiahui,&Wang, Lingqing.(2017).Release of reactive phosphorus from sediments in Dongting Lake linked with the Yangtze River.ENVIRONMENTAL CHEMISTRY,14(1),48-54.
MLA Liang, Tao,et al."Release of reactive phosphorus from sediments in Dongting Lake linked with the Yangtze River".ENVIRONMENTAL CHEMISTRY 14.1(2017):48-54.
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