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Nitrogen fixation driven by mesoscale eddies and the Kuroshio Current in the northern South China Sea and the East China Sea

文献类型：期刊论文

作者Li, Liuyang3,4; Wu, Chao3; Sun, Jun2,3; Song, Shuqun5; Ding, Changling3,6; Huang, Danyue3,4; Pujari, Laxman1,3
刊名ACTA OCEANOLOGICA SINICA
出版日期2020-12-01
卷号39期号:12页码:30-41
ISSN号0253-505X
关键词nitrogen fixation primary production anticyclonic eddies Kuroshio acetylene reduction assay
DOI10.1007/s13131-020-1691-0
通讯作者Sun, Jun(phytoplankton@163.com)
英文摘要N-2 fixation rates (NFR, in terms of N) in the northern South China Sea (nSCS) and the East China Sea (ECS) were measured using the acetylene reduction assay in summer and winter, 2009. NFR of the surface water ranged from 1.14 nmol/(L center dot d) to 10.40 nmol/(L center dot d) (average at (4.89 +/- 3.46) nmol/(L center dot d), n=11) in summer and 0.74 nmol/(L center dot d) to 29.45 nmol/(L center dot d) (average at (7.81 +/- 8.50) nmol/(L center dot d), n=15) in winter. Significant spatio-temporal heterogeneity emerged in our study: the anticyclonic eddies (AE) (P<0.01) and the Kuroshio Current (KC) (P<0.05) performed significantly higher NFR than that in the cyclonic eddies or no-eddy area (CEONE), indicating NFR was profoundly influenced by the physical process of the Kuroshio and mesoscale eddies. The depth-integrated N-2 fixation rates (INF, in terms of N) ranged from 52.4 mu mol/(m(2)center dot d) to 905.2 mu mol/(m(2)center dot d) (average at (428.9 +/- 305.5) mu mol/(m(2)center dot d), n=15) in the winter. The contribution of surface NFR to primary production (PP) ranged from 1.7% to 18.5% in the summer, and the mean contribution of INF to new primary production (NPP) in the nSCS and ECS were estimated to be 11.0% and 36.7% in the winter. The contribution of INF to NPP (3.0%-93.9%) also decreased from oligotrophic sea toward the eutrophic waters affected by runoffs or the CEONE. Furthermore, we observed higher contributions compared to previous studies, revealing the vital roles of nitrogen fixation in sustaining the carbon pump of the nSCS and ECS.
WOS研究方向Oceanography
语种英语
出版者SPRINGER
WOS记录号WOS:000614054900004
源URL[http://ir.qdio.ac.cn/handle/337002/170054]  
专题中国科学院海洋研究所
通讯作者Sun, Jun
作者单位1.Tianjin Univ Sci & Technol, Coll Food Engn & Biotechnol, Tianjin 300457, Peoples R China
2.China Univ Geosci Wuhan, Coll Marine Sci & Technol, Wuhan 430074, Peoples R China
3.Tianjin Univ Sci & Technol, Res Ctr Indian Ocean Ecosyst, Tianjin 300457, Peoples R China
4.Shanghai Jiao Tong Univ, Sch Life Sci & Biotechnol, Shanghai 200240, Peoples R China
5.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
6.Tianjin Univ Sci & Technol, Coll Biotechnol, Tianjin 300457, Peoples R China
推荐引用方式
GB/T 7714		 Li, Liuyang,Wu, Chao,Sun, Jun,et al. Nitrogen fixation driven by mesoscale eddies and the Kuroshio Current in the northern South China Sea and the East China Sea[J]. ACTA OCEANOLOGICA SINICA,2020,39(12):30-41.
APA Li, Liuyang.,Wu, Chao.,Sun, Jun.,Song, Shuqun.,Ding, Changling.,...&Pujari, Laxman.(2020).Nitrogen fixation driven by mesoscale eddies and the Kuroshio Current in the northern South China Sea and the East China Sea.ACTA OCEANOLOGICA SINICA,39(12),30-41.
MLA Li, Liuyang,et al."Nitrogen fixation driven by mesoscale eddies and the Kuroshio Current in the northern South China Sea and the East China Sea".ACTA OCEANOLOGICA SINICA 39.12(2020):30-41.

入库方式： OAI收割

来源：海洋研究所

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