Coupling of the spatial-temporal distributions of nutrients and physical conditions in the southern Yellow Sea

doi:10.1016/j.jmarsys.2015.12.001

	Coupling of the spatial-temporal distributions of nutrients and physical conditions in the southern Yellow Sea
	Wei, Qin-Sheng 1,2; Yu, Zhi-Gang 1,3; Wang, Bao-Dong 2,3; Fu, Ming-Zhu 2; Xia, Chang-Shui 2; Liu, Lu 2; Ge, Ren-Feng 2; Wang, Hui-Wu 2; Zhan, Run 2
刊名	JOURNAL OF MARINE SYSTEMS
	2016-04
卷号	156 页码:30-45
关键词	Southern Yellow Sea Nutrient Current Front Transport Upwelling
ISSN号	0924-7963
DOI	10.1016/j.jmarsys.2015.12.001
英文摘要	This study investigated the coupling of the spatial-temporal variations in nutrient distributions and physical conditions in the southern Yellow Sea (SYS) using data compiled from annual-cycle surveys conducted in 2006-2007 as well as satellite-derived sea-surface temperature (SST) images. The influence of physical dynamics on the distribution and transport of nutrients varied spatially and seasonally in the SYS. The Changjiang Diluted Water (CDW) plume (in summertime), the Subei Coastal Water (SCW) (year-round), and the Lubei Coastal Current (LCC) (in wintertime) served as important sources of nutrients in the inshore area in a dynamic environment. The saline Taiwan Warm Current (TWC) might transport nutrients to the northeast region of the Changjiang Estuary in the summer, and this nutrient source began to increase from spring to summer and decrease when autumn arrived. Three types of nutrient fronts, i.e., estuarine, offshore, and coastal, were identified. A circular nutrient front caused by cross-shelf transport of SCW in the southeast shelf bank area in the winter and spring was observed. The southeastward flow of western coastal cold water in the SYS might be an important conduit for cross-shelf nutrient exchange between the SYS and the East China Sea (ECS). The tongue-shaped low nutrient region in the western study area in the wintertime was driven by the interaction of the southward Yellow Sea Western Coastal Current (YSWCC) and the biological activity. The vertically variable SCM (subsurface Chl-a maximum) in the central SYS was controlled by coupled physical-chemical processes that involved stratification and associated nutricline. The average nutrient fluxes into the euphoric zone due to upwelling near the frontal zone of the Yellow Sea Cold Water Mass (YSCWM) in the summer are estimated here for the first time: 1.4 +/- 0.9 x 10(3) mu mol/m(2)/d, 0.1 +/- 0.1 x 10(3) mu mol/m(2)/d, and 2.0 +/- 1.3 x 10(3) mu mol/m(2)/d for DIN, PO4-P, and SiO3-Si, respectively. The depletion of nutrients in the central SYS and the upwelled transport in the boundary of the YSCWM resulted in a spatial transfer of the high Chl-a zone, varying generally from the central SYS to the boundary of the YSCWM from spring to summer, and the nutrient flux associated with this upwelling could contribute significantly to local primary production. This study deepens our understanding of the mechanisms influencing the distribution and transport of nutrients in the SYS. (C) 2015 Elsevier B.V. All rights reserved.
资助项目	National Project of Comprehensive Investigation and Research of Coastal Seas in China[908-01-ST03]
WOS关键词	CROSS-SHELF CIRCULATION ; EAST CHINA SEAS ; NITROGEN ; FRONTS ; WATER
WOS研究方向	Geology ; Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000370888600003
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26647]
专题	自然资源部第一海洋研究所
通讯作者	Wei, Qin-Sheng
作者单位	1.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, 238 Songling Rd, Qingdao 266100, Peoples R China 2.State Ocean Adm, Inst Oceanog 1, 6 Xianxialing Rd, Qingdao 266061, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wei, Qin-Sheng,Yu, Zhi-Gang,Wang, Bao-Dong,et al. Coupling of the spatial-temporal distributions of nutrients and physical conditions in the southern Yellow Sea[J]. JOURNAL OF MARINE SYSTEMS,2016,156:30-45.
APA	Wei, Qin-Sheng.,Yu, Zhi-Gang.,Wang, Bao-Dong.,Fu, Ming-Zhu.,Xia, Chang-Shui.,...&Zhan, Run.(2016).Coupling of the spatial-temporal distributions of nutrients and physical conditions in the southern Yellow Sea.JOURNAL OF MARINE SYSTEMS,156,30-45.
MLA	Wei, Qin-Sheng,et al."Coupling of the spatial-temporal distributions of nutrients and physical conditions in the southern Yellow Sea".JOURNAL OF MARINE SYSTEMS 156(2016):30-45.