Variations and Environmental Controls of Primary Productivity in the Amundsen Sea

doi:10.3389/fmars.2022.891663

IOCAS-IR > 海洋环流与波动重点实验室

	Variations and Environmental Controls of Primary Productivity in the Amundsen Sea
	Feng, Jianlong 1,2; Li, Delei 3,4; Zhang, Jing1 ; Zhao, Liang 1,5
	2022-05-26
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	9 页码:15
通讯作者	Zhao, Liang(zhaoliang@tust.edu.cn)
摘要	The Amundsen Sea is one of the regions with the highest primary productivity in the Antarctic. To better understand the role of the Southern Ocean in the global carbon cycle and in climate regulation, a better understanding of the variations and environmental controls of primary productivity is needed. Using cluster analysis, the Amundsen Sea was divided into nine bioregions. The biophysical differences among bioregions enhanced confidence to identify priorities and regions to study the temporal and spatial variations in primary production. Four nearshore bioregions with high net primary productivity or rapidly increasing rates were selected to analyze temporal and spatial variations in primary productivity in the Amundsen Sea. Due to changes in net solar radiation and sea ice, primary production had significant seasonal variation in these four bioregions. The phenology had changed at two bioregions (6 and 7), which has the third and fourth highest primary production, due to changes in the dissolved iron. Annual primary production showed increasing trends in these four bioregions, and it was significant at three bioregions. The variation in primary production in the bioregion (9), which has the highest primary production, was mainly affected by variations in sea surface temperatures. In the bioregion (8), which has the second-highest primary production, the primary production was significantly positively correlated with sea surface temperature and significantly negatively correlated with sea ice thickness. The long-term changes of primary productivity in bioregions 6 and 7 were thought to be related to changes in the dissolved iron, and dissolved iron was the limiting factor in these two bioregions. Bioregionalization not only disentangles multiple factors that control the spatial differences, but also disentangles limiting factors that affect the phenology, decadal and long-term changes in primary productivity.
关键词	Amundsen Sea primary productivity bioregions dissolved iron climate change
DOI	10.3389/fmars.2022.891663
收录类别	SCI
语种	英语
资助项目	Project of Scientific Research Program of Tianjin Municipal Education Commission[RFSOCC2020-2022-No.18] ; National Science Foundation of Tianjin[2017KJ181] ; [19JCZDJC40600]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000808253300001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179486
专题	海洋环流与波动重点实验室
通讯作者	Zhao, Liang
作者单位	1.Tianjin Univ Sci & Technol, Key Lab Marine Resource Chem & Food Technol TUST, Minist Educ, Tianjin, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 5.Tianjin Univ, Sch Marine Sci & Technol, Tianjin, Peoples R China
推荐引用方式 GB/T 7714	Feng, Jianlong,Li, Delei,Zhang, Jing,et al. Variations and Environmental Controls of Primary Productivity in the Amundsen Sea[J]. FRONTIERS IN MARINE SCIENCE,2022,9:15.
APA	Feng, Jianlong,Li, Delei,Zhang, Jing,&Zhao, Liang.(2022).Variations and Environmental Controls of Primary Productivity in the Amundsen Sea.FRONTIERS IN MARINE SCIENCE,9,15.
MLA	Feng, Jianlong,et al."Variations and Environmental Controls of Primary Productivity in the Amundsen Sea".FRONTIERS IN MARINE SCIENCE 9(2022):15.

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