Nutrient composition and distributions in coastal waters impacted by the Changjiang plume

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋生态研究中心

	Nutrient composition and distributions in coastal waters impacted by the Changjiang plume
	Wang Xiulin 2; Wang Baodong 1; Zhang Chuansong 2; Shi Xiaoyong 2; Zhu Chenjian 2; Xie Linping 2; Han Xiurong 2; Xin Yu 2; Wang Jiangtao 2
刊名	ACTA OCEANOLOGICA SINICA
	2008
卷号	27 期号:5 页码:111-125
关键词	nutrients chlorophyll Changjiang River (Yangtze River) eutrophication mixing nutrient limitation
ISSN号	0253-505X
英文摘要	Four cruises were conducted during 2002-2003 in the Changjiang Estuary and adjacent coastal areas. The data presented show a clear coast to open sea gradient in nutrients related to the river inputs. Maximum values of chlorophyll a were typically observed at intermediate salinities at surface water and coincided with non-conservative decreases in nutrients along the salinity gradient, indicating that removal of nutrients was related to phytoplankton uptake. The seasonal variations of nutrient concentrations were just opposite to those of chlorophyll a, indicating that the seasonal variations of nutrients were mainly controlled by phytoplankton uptake, whereas riverine inputs merely weakened or balanced its extent. During the estuarine mixing, phosphate demonstrated some remobilization during all the four cruises; whereas both conservative and non-conservative behaviors for dissolved inorganic nitrogen and silicate were observed in the study area, indicating that both biotic and abiotic events may affect their behaviors during the estuarine mixing. Under the influence of freshwater inputs with high value of ratio of nitrogen to phosphorus, the estuarine and coastal waters impacted by the Changjiang plume were high (>30) in ratio of nitrogen to phosphorus, but rates of primary production were. apparently riot constrained by any kind of nutrient elements. However, the low (<1) ratio of silicate to nitrogen in most of the study area might be linked with the rapidly increasing frequency of harmful algal bloom(HAB) incidents in recent years in the coastal waters impacted by the Changjiang plume.
资助项目	Ministry of Education of China[01110]
WOS研究方向	Oceanography
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000262684100008
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/4515]
专题	业务部门_海洋生态研究中心
作者单位	1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China; 2.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Wang Xiulin,Wang Baodong,Zhang Chuansong,et al. Nutrient composition and distributions in coastal waters impacted by the Changjiang plume[J]. ACTA OCEANOLOGICA SINICA,2008,27(5):111-125.
APA	Wang Xiulin.,Wang Baodong.,Zhang Chuansong.,Shi Xiaoyong.,Zhu Chenjian.,...&Wang Jiangtao.(2008).Nutrient composition and distributions in coastal waters impacted by the Changjiang plume.ACTA OCEANOLOGICA SINICA,27(5),111-125.
MLA	Wang Xiulin,et al."Nutrient composition and distributions in coastal waters impacted by the Changjiang plume".ACTA OCEANOLOGICA SINICA 27.5(2008):111-125.