Spatiotemporal variations and impact factors of nutrients in the Sanya Bay, northern South China Sea

doi:10.1007/s11356-023-27527-8

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Spatiotemporal variations and impact factors of nutrients in the Sanya Bay, northern South China Sea
	Geng, Xinxing 1; Wu, Chuanliang 5; Yang, Ziwei 1; Zhu, Junying 1,3,4; Tang, Kai 1; Lin, Jiamin 1; Liu, Yaxing 5; Zhang, Yufang 5; An, Mingxun 1; Zhao, Weibin 1
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2023-05-29
页码	14
关键词	South China Sea Nutrients Sanya River Seasonal variation Coral
ISSN号	0944-1344
DOI	10.1007/s11356-023-27527-8
通讯作者	Zhu, Junying(zhujy@hainanu.edu.cn)
英文摘要	Nutrients play a fundamental role in maintaining coastal ecosystem stability. Based on two cruise observations in the winter of 2020 and the summer of 2021, the spatiotemporal variations of dissolved inorganic nitrogen (DIN) and orthophosphate (PO43-) and their influencing factors in Sanya Bay were analyzed. Results show that the mean DIN concentrations in the bay are 2.36 mu mol/L in winter and 1.73 mu mol/L in summer, and the mean PO43- concentrations are 0.08 mu mol/L in winter and 0.04 mu mol/L in summer. The nutrient concentrations and composition are significantly affected by the Sanya River. The surface DIN concentrations at the Sanya River estuary are 15.80 and 5.25 times than those inside the bay in winter and summer, respectively. Meanwhile, a high proportion of NO3- (74%) and a low proportion of NH4+ (20%) in DIN appear near the river estuary, while a low proportion of NO3- (37%) and a high proportion of NH4+ (53%) occur away from the estuary. In addition, the thermocline promotes the accumulation of NH4+ at the bottom layer in summer. The high proportion of NO3- is likely not favorable for the survival of coral reefs in eastern bay. Compared with the previous nutrient concentrations, the DIN concentration in the bay has a decrease after 2014, which might benefit from the implementation of the environmental protection policy by government.
资助项目	Key Research and Development Program of Hainan Province[ZDYF2020203] ; Hainan University for Research and Development[KYQD(ZR)21002] ; Opening Project of Guangxi Laboratory on the Study of Coral Reefs in the South China Sea[GXLSCRSCS2020004]
WOS关键词	COMMUNITY COMPOSITION ; COASTAL WATERS ; EUTROPHICATION ; AMMONIUM ; NITROGEN ; MODEL ; PHYTOPLANKTON ; VARIABILITY ; CORAL
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000998603500004
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/182355]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Zhu, Junying
作者单位	1.Hainan Univ, Coll Marine Sci, Haikou 570228, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 3.Guangxi Univ, Guangxi Lab Study Coral Reefs South China Sea, Nanning 530004, Peoples R China 4.Hainan Univ, State Key Lab Marine Resources Utilizat South Chin, Haikou 570228, Peoples R China 5.Sanya Coral Reef Ecol Inst, Sanya 572000, Peoples R China
推荐引用方式 GB/T 7714	Geng, Xinxing,Wu, Chuanliang,Yang, Ziwei,et al. Spatiotemporal variations and impact factors of nutrients in the Sanya Bay, northern South China Sea[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2023:14.
APA	Geng, Xinxing.,Wu, Chuanliang.,Yang, Ziwei.,Zhu, Junying.,Tang, Kai.,...&Yu, Yang.(2023).Spatiotemporal variations and impact factors of nutrients in the Sanya Bay, northern South China Sea.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,14.
MLA	Geng, Xinxing,et al."Spatiotemporal variations and impact factors of nutrients in the Sanya Bay, northern South China Sea".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2023):14.