N-2 fixation impacted by carbon fixation via dissolved organic carbon in the changing Daya Bay, South China Sea
文献类型：期刊论文
| 作者 | Fang, Ziming; Qiu, Yusheng; Zheng, Minfang; Li, Danyang; Liu, Jiaxing1; Zhang, Run; Chen, Min; Yang, Weifeng3; Li, Junjie; Wang, Bo |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019 |
| 卷号 | 674页码:592 |
| 关键词 | N-2 fixation Daya Bay Northern South China Sea Carbon fixation Dissolved organic carbon (DOC) Heterotrophic diazotrophs |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2019.04.176 |
| 英文摘要 | We present the first concurrent measurements of N-2 fixation rates (N-15(2) uptake), primary production (C-14 uptake), dissolved organic carbon (DOC) concentrations, and diazotrophic community composition derived from nitrogenase (nifH) abundance in the subtropical Daya Bay (DB) of the coastal northern South China Sea (NSCS) from 2015 to 2017. N-2 fixation rates ranged from n.d. -4.51 nmol N L-1 h(-1). Such values were generally higher than those reported in the neighbouring NSCS open waters and several well-studied oligotrophic waters, thereby suggesting that N-replete conditions do not prevent N-2 fixation in coastal waters. N-2 fixation rates were positively and significantly correlated with the primary production and the concentration of DOC in DB in the spring and summer. Combined with other lines of evidence, we suggest that N-2 fixation may be facilitated by non-diazotrophic phytoplankton via a probable regulation of the quantity and quality (bioavailability) of DOC in DB. Since DB represents a suitable site that has experienced dramatic human-induced changes in environmental conditions, our results likely provide insights in understanding how N-2 fixation and relevant biogeochemical processes may respond to intensified global anthropogenic forcing in similar coastal settings. (C) 2019 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17809]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 作者单位 | 1.Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361102, Peoples R China 2.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361102, Peoples R China 3.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, 164 West Xingang Rd, Guangzhou 510301, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Ziming,Qiu, Yusheng,Zheng, Minfang,et al. N-2 fixation impacted by carbon fixation via dissolved organic carbon in the changing Daya Bay, South China Sea[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,674:592, 602. |
| APA | Fang, Ziming.,Qiu, Yusheng.,Zheng, Minfang.,Li, Danyang.,Liu, Jiaxing.,...&Wang, Bo.(2019).N-2 fixation impacted by carbon fixation via dissolved organic carbon in the changing Daya Bay, South China Sea.SCIENCE OF THE TOTAL ENVIRONMENT,674,592. |
| MLA | Fang, Ziming,et al."N-2 fixation impacted by carbon fixation via dissolved organic carbon in the changing Daya Bay, South China Sea".SCIENCE OF THE TOTAL ENVIRONMENT 674(2019):592. |
入库方式： OAI收割
来源：南海海洋研究所
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