Distribution, sources and budgets of particulate phosphorus and nitrogen in the East China Sea

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	Distribution, sources and budgets of particulate phosphorus and nitrogen in the East China Sea
	Yu, Yu 1,2; Song, Jinming1 ; Li, Xuegang 1; Yuan, Huamao 1; Li, Ning 1
刊名	CONTINENTAL SHELF RESEARCH
	2012-07-15
卷号	43 页码:142-155
关键词	Suspended matter Particulate phosphorus Particulate nitrogen Particulate nutrient budget Changjiang river East China Sea
ISSN号	0278-4343
通讯作者	Song, JM (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
英文摘要	Suspended particles were collected from the northern East China Sea (ECS) in four spring and autumn cruises to study the sources and biogeochemical behavior of particulate inorganic and organic phosphorus and nitrogen (PIP, POP, PIN, and PUN). PIP and PON were dominant forms of particulate P and N, accounting for 57.2% of TPP and 78.2% of TPN, respectively. PIP and POP concentrations decreased seaward from the estuary, and had high values near Zhoushan Islands and in the northern ECS. It was indicated that the Changjiang dilute water (CDW) and the Jiangsu coastal currents (JCC), which were rich in particulate phosphorus were the major sources of PIP and POP. PIN and PUN concentrations exhibited decreasing trend from the middle shelf toward land and offshore, suggesting the dilution effect of N-depleted riverine particles on particulate nitrogen in coastal waters. The highest concentrations of PIN and PUN were observed in the coast of Zhejiang and in the northern ECS, which were two productive areas in the ECS. PON and PIN were primarily of marine source and POP was also influenced by phytoplankton productivity. The concentrations, compositions and distribution of particulate nutrients varied between spring and autumn, in response to the seasonal variations of phytoplankton productivity and terrestrial input. Budget calculation demonstrated that the sediment flux of Changjiang accounted for 88% of total input flux in spring and summer, indicating that the Changjiang River was the major particle source in the ECS. Particulate P was mainly from phytoplankton and the input of the Changjiang River, while the major source of particulate N was phytoplankton. Phytoplankton production contributed 70% of TPP input flux and 95% of TPN input flux in spring and summer, while 64% of TPP input and 89% of TPN input in autumn and winter. It was shown that riverine particles were enriched in inorganic P. whereas marine particles had high organic P and N content, which suggested that the component characteristics of particles could be used to identify the particle sources. (c) 2012 Elsevier Ltd. All rights reserved.
学科主题	Oceanography
收录类别	SCI
原文出处	10.1016/j.csr.2012.05.018
语种	英语
WOS记录号	WOS:000306980400013
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/12421]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yu, Yu,Song, Jinming,Li, Xuegang,et al. Distribution, sources and budgets of particulate phosphorus and nitrogen in the East China Sea[J]. CONTINENTAL SHELF RESEARCH,2012,43:142-155.
APA	Yu, Yu,Song, Jinming,Li, Xuegang,Yuan, Huamao,&Li, Ning.(2012).Distribution, sources and budgets of particulate phosphorus and nitrogen in the East China Sea.CONTINENTAL SHELF RESEARCH,43,142-155.
MLA	Yu, Yu,et al."Distribution, sources and budgets of particulate phosphorus and nitrogen in the East China Sea".CONTINENTAL SHELF RESEARCH 43(2012):142-155.