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

doi:10.1007/s11356-023-27527-8

IOCAS-IR > 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 2; Yang, Ziwei 1; Zhu, Junying 1,3,4; Tang, Kai 1; Lin, Jiamin 1; Liu, Yaxing 2; Zhang, Yufang 2; An, Mingxun 1; Zhao, Weibin 1; Yu, Yang5
	2023-05-29
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
页码	14
通讯作者	Zhu, Junying(zhujy@hainanu.edu.cn)
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.
关键词	South China Sea Nutrients Sanya River Seasonal variation Coral
DOI	10.1007/s11356-023-27527-8
收录类别	SCI
语种	英语
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研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000998603500004
出版者	SPRINGER HEIDELBERG
WOS关键词	COMMUNITY COMPOSITION ; COASTAL WATERS ; EUTROPHICATION ; AMMONIUM ; NITROGEN ; MODEL ; PHYTOPLANKTON ; VARIABILITY ; CORAL
引用统计	被引频次：1[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/337002/182356
专题	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.Sanya Coral Reef Ecol Inst, Sanya 572000, Peoples R China 3.Hainan Univ, State Key Lab Marine Resources Utilizat South Chin, Haikou 570228, Peoples R China 4.Guangxi Univ, Guangxi Lab Study Coral Reefs South China Sea, Nanning 530004, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, 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.