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Effects of sediment oxidation on phosphorus transformation in three large shallow eutrophic lakes in China
Li, Qingman1; Shi, Wenqing2
2020-01-04
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Issue1Pages:8
Abstract

Oxidation of surface sediments is an important means for altering phosphorus (P) exchanges across sediment-water interface (SWI) in shallow lakes. In this study, the potential and composition of regenerated oxidation capacity (OC) of surface sediments were evaluated in three large shallow lakes (Tai Lake, Chao Lake, and Dianchi Lake) in China; the transformation of sedimentary P was quantified through P fractionation scheme. The composition of the regenerated OC differed among these three lakes, with Fe(III) and SO42- dominant in Dianchi Lake, Mn(IV) and Fe(III) in Chao Lake and Tai Lake. Oxidation of sediments enhanced the transformation of sedimentary P and altered P exchanges across the SWI. In Chao Lake, the HCl-P was transformed to BD-P; in Tai Lake, the NaOH-P was involved too, and transformed to BD-P; whereas in Dianchi Lake, an increase in NH4Cl-P was also observed except for the transformation from HCl-P to BD-P. The sediment-to-water flux of P was enhanced with 0.17 mg/g DW in Dianchi Lake and 0.08 mg/g DW in Chao Lake, while a contrary water-to-sediment flux of P was observed in Tai Lake, reaching 0.01 mg/g DW. This study advances our knowledge on the impacts of sediment oxidation on P cycles in lakes, which will be beneficial to eutrophication control.

KeywordOxidation capacity Sedimentary phosphorus Anoxic sediment Phosphorus exchange Phosphorus fractionation
DOI10.1007/s11356-019-07510-y
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000505488400007
WOS KeywordPHOSPHATE ADSORPTION ; WATER-TREATMENT ; DIANCHI LAKE ; FRESH-WATER ; MANGANESE ; SULFATE ; IRON ; CALCIUM ; POLLUTION ; RELEASE
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/35237
Collection水环境工程研究中心_期刊论文
Corresponding AuthorShi, Wenqing
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
2.Nanjing Hydraul Res Inst, Ctr Ecoenvironm Res, Nanjing 210029, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Li, Qingman,Shi, Wenqing. Effects of sediment oxidation on phosphorus transformation in three large shallow eutrophic lakes in China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020(1):8.
APA Li, Qingman,&Shi, Wenqing.(2020).Effects of sediment oxidation on phosphorus transformation in three large shallow eutrophic lakes in China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH(1),8.
MLA Li, Qingman,et al."Effects of sediment oxidation on phosphorus transformation in three large shallow eutrophic lakes in China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH .1(2020):8.
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