Evolution of the sink and source of dissolved inorganic nitrogen with salinity as a tracer during summer in the Pearl River Estuary

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Evolution of the sink and source of dissolved inorganic nitrogen with salinity as a tracer during summer in the Pearl River Estuary
	Wu, Mei-Lin; Hong, Yi-Guo; Yin, Jian-Ping; Dong, Jun-De; Wang, You-Shao
刊名	SCIENTIFIC REPORTS
	2016
卷号	6 页码:36638
通讯作者	Wang, YS (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China. ; Wang, YS (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China. ; Wang, YS (reprint author), Chinese Acad Sci, Marine Biol Res Stn Daya Bay, Shenzhen 518121, Peoples R China.
中文摘要	In this study, we evaluated the sink and source of the surface water along the PRE using a mixing model method with salinity as tracer. The observational data showed that the decreasing of dissolved inorganic nitrogen (DIN) did not closely follow the physical mixing lines of freshwater and modified seawater. In the western part, DIN consumption by phytoplankton and bacteria uptake (Delta DIN) varied from 15.81 mu mol L-1 to 88.53 mu mol L-1. On the contrary, in the eastern part, Delta DIN varied from -63.66 mu mol L-1 to -10.45 mu mol L-1. DIN source in the eastern part may be mainly caused by organic matter decomposition, while DIN remove is strongly associated with phytoplankton growth and bacteria consumption. These differential behaviors of the estuary with respect to DIN are largely due to varying degrees of hydrodynamics due to different topography in the two areas. Sensitivity analysis indicated reduction strategies of DIN inputs to coastal waters may improve environment quality in the PRE, due to DIN changes in the freshwater end-member having a determined influence on biological activities (R). Our results indicate that the model may be a valuable way to address the sources and sink of DIN in the river-dominated estuaries.
学科主题	Science & Technology - Other Topics
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/15240]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Wu, Mei-Lin,Hong, Yi-Guo,Yin, Jian-Ping,et al. Evolution of the sink and source of dissolved inorganic nitrogen with salinity as a tracer during summer in the Pearl River Estuary[J]. SCIENTIFIC REPORTS,2016,6:36638.
APA	Wu, Mei-Lin,Hong, Yi-Guo,Yin, Jian-Ping,Dong, Jun-De,&Wang, You-Shao.(2016).Evolution of the sink and source of dissolved inorganic nitrogen with salinity as a tracer during summer in the Pearl River Estuary.SCIENTIFIC REPORTS,6,36638.
MLA	Wu, Mei-Lin,et al."Evolution of the sink and source of dissolved inorganic nitrogen with salinity as a tracer during summer in the Pearl River Estuary".SCIENTIFIC REPORTS 6(2016):36638.