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Photo-induced phosphate release during sediment resuspension in shallow lakes: A potential positive feedback mechanism of eutrophication
Guo, Minli1; Li, Xiaolu1; Song, Chunlei2; Liu, Guanglong1; Zhou, Yiyong2
Corresponding AuthorLiu, Guanglong(liugl@mail.hzau.edu.cn)
2020-03-01
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
Volume258Pages:7
AbstractDissolved phosphate (P-i) can be released during resuspended sediments exposed to sunlight. However, the significance of this phenomenon in the process of eutrophication is not clear. In this study, the behavior of photo-induced P-i release during sediment resuspension in shallow lakes with the different trophic states was investigated. The amount of photo-induced P-i release in the sediment resuspension from Lake Liangzi, Lake Dong, Lake Tangxun and Lake Longyang in China was 0.013, 0.019, 0.032, and 0.048 mg/L, respectively, and increased as the trophic states of the lakes increased. The results of phosphorus speciation analysis showed that the phosphate monoester in the particulate phosphorus is the organic phosphorus species participated in the photochemical reaction. The steady-state concentration of hydroxyl radical ((OH)-O-center dot) in the sediment resuspension also increased along with the trophic states of lakes increased and dissolved organic matter (DOM), nitrate, and Fe3+ presented in sediment resuspension were the main photosensitizers for (OH)-O-center dot production. All these results indicate that the increase of trophic states of lakes leads to the accumulation of organic phosphorus and (OH)-O-center dot, resulting in more dissolved phosphate photo-released, which accelerate the eutrophication process in a form of positive feedback. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordPhosphate Sediment Organic phosphorus Photo-release Eutrophication
DOI10.1016/j.envpol.2019.113679
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41877461] ; National Key Research and Development Program of China[2017YFD0800102] ; National Key Research and Development Program of China[2018YFD0800600] ; Fok Ying Tong Education Foundation, China[151078]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000519655100118
WOS KeywordORGANIC PHOSPHORUS COMPOSITION ; PHOTOCHEMICAL RELEASE ; HYDROXYL RADICALS ; COASTAL SEAWATERS ; PHOTODEGRADATION ; FRACTIONS ; MATTER ; BIOAVAILABILITY ; DEGRADATION ; ESTUARINE
PublisherELSEVIER SCI LTD
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/35990
Collection水环境工程研究中心_期刊论文
Corresponding AuthorLiu, Guanglong
Affiliation1.Huazhong Agr Univ, Coll Resources & Environm, Key Lab Arable Land Conservat Middle & Lower Reac, Minist Agr & Rural Affairs, Wuhan 430070, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Guo, Minli,Li, Xiaolu,Song, Chunlei,et al. Photo-induced phosphate release during sediment resuspension in shallow lakes: A potential positive feedback mechanism of eutrophication[J]. ENVIRONMENTAL POLLUTION,2020,258:7.
APA Guo, Minli,Li, Xiaolu,Song, Chunlei,Liu, Guanglong,&Zhou, Yiyong.(2020).Photo-induced phosphate release during sediment resuspension in shallow lakes: A potential positive feedback mechanism of eutrophication.ENVIRONMENTAL POLLUTION,258,7.
MLA Guo, Minli,et al."Photo-induced phosphate release during sediment resuspension in shallow lakes: A potential positive feedback mechanism of eutrophication".ENVIRONMENTAL POLLUTION 258(2020):7.
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