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

doi:10.1016/j.csr.2012.05.018

	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; Song, JM (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
	2012-07-15
发表期刊	CONTINENTAL SHELF RESEARCH
ISSN	0278-4343
卷号	43 页码:142-155
文章类型	Article
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.
关键词	Suspended Matter Particulate Phosphorus Particulate Nitrogen Particulate Nutrient Budget Changjiang River East China Sea
学科领域	Oceanography
DOI	10.1016/j.csr.2012.05.018
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000306980400013
引用统计	被引频次：38[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/12421
专题	海洋生态与环境科学重点实验室
通讯作者	Song, JM (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
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
第一作者单位	中国科学院海洋研究所
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,&Song, JM .(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.

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