The biogeochemical characteristics of phosphorus in coastal sediments under high salinity and dredging conditions

doi:10.1016/j.chemosphere.2018.10.015

YIC-IR > 中国科学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

	The biogeochemical characteristics of phosphorus in coastal sediments under high salinity and dredging conditions
	Zhao, Guoqiang ; Sheng, Yanqing; Jiang, Ming ; Zhou, Haoyuan ; Zhang, Huichao
发表期刊	CHEMOSPHERE
ISSN	0045-6535
	2019-01
卷号	215 页码:681-692
关键词	Phosphorus Coastal sediments Salinity Sediment dredging Bohai sea
研究领域	Environmental Sciences & Ecology
DOI	10.1016/j.chemosphere.2018.10.015
产权排序	[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
作者部门	海岸带环境工程技术研究与发展中心
英文摘要	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.
文章类型	Article; Proceedings Paper
资助机构	National Natural Science Foundation of China [41373100] ; Key Project of Research and Development Plan of Yantai [2018ZHGY083] ; CAS Key Technology Talent Program
收录类别	SCI
语种	英语
关键词[WOS]	ORGANIC PHOSPHORUS ; LAKE TAIHU ; AVAILABLE PHOSPHORUS ; INORGANIC PHOSPHORUS ; RELEASE ; SOIL ; CHINA ; EXTRACTION ; CARBON ; SEA
研究领域[WOS]	Environmental Sciences
WOS记录号	WOS:000450383400075
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/24606
专题	中国科学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国科学院海岸带环境过程与生态修复重点实验室
作者单位	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
推荐引用方式 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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