The biogeochemical characteristics of phosphorus in coastal sediments under high salinity and dredging conditions
Zhao, Guoqiang; Sheng, Yanqing; Jiang, Ming; Zhou, Haoyuan; Zhang, Huichao
Source PublicationCHEMOSPHERE
ISSN0045-6535
2019-01
Volume215Pages:681-692
KeywordPhosphorus Coastal sediments Salinity Sediment dredging Bohai sea
MOST Discipline CatalogueEnvironmental Sciences & Ecology
DOI10.1016/j.chemosphere.2018.10.015
Contribution Rank[Zhao, Guoqiang; Sheng, Yanqing; Jiang, Ming; Zhou, Haoyuan] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai, Peoples R China; [Zhao, Guoqiang; Jiang, Ming; Zhou, Haoyuan] Univ Chinese Acad Sci, Beijing, Peoples R China; [Zhang, Huichao] Yantai Univ, Sch Civil Engn, Yantai, Peoples R China
Department海岸带环境工程技术研究与发展中心
AbstractThe geochemistry of phosphorus (P) can usually be related to prevailing environmental conditions. To investigate sedimentary P cycling mechanism and biogeochemical characteristics under high salinity and dredging conditions in polluted coastal sediments, thirty-three surface sediment samples were collected from the Jiehe River (JH), Jiaolai River (JL) and their estuarine and offshore areas in the Bohai Sea. Analyses included the Standards, Measurements and Testing method (SMT), Ivanoff organic P (OP) fractionation, and nuclear magnetic resonance (P-31-NMR) of soluble P and indicated that HCl-P was the dominant fraction in sediments under high salinity stress. However, under dredging conditions in freshwater river sediments, NaOH-P was the dominant fraction. The potential activity of the OP fraction was reactive in freshwater river sediments, while it was unreactive under high salinity conditions. NaOH-P and HCl-P were found to be mainly derived from anthropogenic inputs, whereas both in-situ biological and anthropogenic inputs were important sources of the OP fractions. High salinity had the potential to increase NaOH-P content in acidic river sediments, resulting in the OP being relatively stable with a low risk level. Sediment dredging potentially increased the regeneration of P from HCl-P and OP and increased the potential activity of OP and IP. Seawater was found to induce removal of the NaOH-P and OP from offshore sediments, resulting in the regeneration of the remaining P at a low level. (C) 2018 Elsevier Ltd. All rights reserved.
SubtypeArticle; Proceedings Paper
Funding OrganizationNational Natural Science Foundation of China [41373100] ; Key Project of Research and Development Plan of Yantai [2018ZHGY083] ; CAS Key Technology Talent Program
Indexed BySCI
Language英语
WOS KeywordORGANIC PHOSPHORUS ; LAKE TAIHU ; AVAILABLE PHOSPHORUS ; INORGANIC PHOSPHORUS ; RELEASE ; SOIL ; CHINA ; EXTRACTION ; CARBON ; SEA
WOS Research AreaEnvironmental Sciences
WOS IDWOS:000450383400075
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/24606
Collection中科院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
中科院海岸带环境过程与生态修复重点实验室
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai, Peoples R China;
2.Univ Chinese Acad Sci, Beijing, Peoples R China;
3.Yantai Univ, Sch Civil Engn, Yantai, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Guoqiang,Sheng, Yanqing,Jiang, Ming,et al. The biogeochemical characteristics of phosphorus in coastal sediments under high salinity and dredging conditions[J]. CHEMOSPHERE,2019,215:681-692.
APA Zhao, Guoqiang,Sheng, Yanqing,Jiang, Ming,Zhou, Haoyuan,&Zhang, Huichao.(2019).The biogeochemical characteristics of phosphorus in coastal sediments under high salinity and dredging conditions.CHEMOSPHERE,215,681-692.
MLA Zhao, Guoqiang,et al."The biogeochemical characteristics of phosphorus in coastal sediments under high salinity and dredging conditions".CHEMOSPHERE 215(2019):681-692.
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