| The biogeochemical characteristics of phosphorus in coastal sediments under high salinity and dredging conditions | |
Zhao, Guoqiang; Sheng, Yanqing ; Jiang, Ming; Zhou, Haoyuan; Zhang, Huichao
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| Source Publication | CHEMOSPHERE
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| ISSN | 0045-6535 |
| 2019-01 | |
| Volume | 215Pages:681-692 |
| Keyword | Phosphorus Coastal sediments Salinity Sediment dredging Bohai sea |
| MOST Discipline Catalogue | Environmental Sciences & Ecology |
| DOI | 10.1016/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 |
| Abstract | The 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. |
| Subtype | Article; Proceedings Paper |
| Funding Organization | National Natural Science Foundation of China [41373100] ; Key Project of Research and Development Plan of Yantai [2018ZHGY083] ; CAS Key Technology Talent Program |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | ORGANIC PHOSPHORUS ; LAKE TAIHU ; AVAILABLE PHOSPHORUS ; INORGANIC PHOSPHORUS ; RELEASE ; SOIL ; CHINA ; EXTRACTION ; CARBON ; SEA |
| WOS Research Area | Environmental Sciences |
| WOS ID | WOS:000450383400075 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 |
| Affiliation | 1.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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