Evaluation of Sedimentary Organic Carbon Reactivity and Burial in the Eastern China Marginal Seas
文献类型：期刊论文
| 作者 | Guo, Jinqiang1,2,4,5; Yuan, Huamao1,2,4,5 ; Song, Jinming1,2,4,5; Li, Xuegang1,2,4,5; Duan, Liqin1,2,4,5; Li, Ning1,3,4,5; Wang, Yingxia3,4
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| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
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| 出版日期 | 2021-04-01 |
| 卷号 | 126期号:4页码:14 |
| 关键词 | biomarker burial mud deposit reactivity sedimentary organic carbon source |
| ISSN号 | 2169-9275 |
| DOI | 10.1029/2021JC017207 |
| 通讯作者 | Yuan, Huamao(yuanhuamao@qdio.ac.cn) ; Song, Jinming(jmsong@qdio.ac.cn) |
| 英文摘要 | Dynamic physicochemical interactions along continental margins create complex organic carbon (OC) cycles that have a significant impact on the global climate but remain enigmatic; in particular, the OC burial behaviors in mud areas are still unclear. Herein, the molecular and bulk properties of sedimentary OC (SOC) were investigated in eastern China marginal seas to better understand the fate of SOC. The source discrimination analysis showed that SOC was mainly derived from indigenous production and experienced strong heterotrophic alteration, as indicated by low glucosamine/galactosamine ratios (<3) and the relatively high contribution of bacterial OC (similar to 25%). The South Yellow Sea mud area (SYSMA) and East China Sea mud area (ECSMA) both represented hot spots for SOC burial, but the SYSMA exhibited lower SOC reactivity than the ECSMA because of intense degradation in the water column. Although the net particulate OC deposition flux in the ECSMA was approximately 5 times that of the SYSMA, the SOC burial efficiencies (similar to 35%) of these two areas were similar due to the presence of cold water masses and cyclonic eddies in the SYSMA (which are beneficial for the storage of SOC) and the active remineralization driven by the priming effect and intense physical reworking in the ECSMA. As human disturbance and global climate change intensify, the role of distal mud areas (represented by the SYSMA) in SOC burial may become increasingly prominent, while the SOC burial in inner shelf mobile mud areas (such as the ECSMA) affected by large rivers may be significantly reduced. |
| 资助项目 | Key Project of Center for Ocean Mega-Science of the Chinese Academy of Sciences[COMS2019Q12] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23050501] ; Key Science and Technology Innovation Program by Shandong Province ; Qingdao National Laboratory for Marine Science and Technology[2018SDKJ0504-1] ; National Natural Science Foundation of China[41976037] ; Two-Hundred Talents Plan of Yantai Scholar Project Special Fund ; Shandong Provincial Natural Science Foundation[ZR2020YQ28] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000645019200041 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/170952]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Yuan, Huamao; Song, Jinming |
| 作者单位 | 1.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Chinese Acad Sci, Publ Technol Serv Ctr, Inst Oceanol, Qingdao, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 5.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Jinqiang,Yuan, Huamao,Song, Jinming,et al. Evaluation of Sedimentary Organic Carbon Reactivity and Burial in the Eastern China Marginal Seas[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2021,126(4):14. |
| APA | Guo, Jinqiang.,Yuan, Huamao.,Song, Jinming.,Li, Xuegang.,Duan, Liqin.,...&Wang, Yingxia.(2021).Evaluation of Sedimentary Organic Carbon Reactivity and Burial in the Eastern China Marginal Seas.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,126(4),14. |
| MLA | Guo, Jinqiang,et al."Evaluation of Sedimentary Organic Carbon Reactivity and Burial in the Eastern China Marginal Seas".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 126.4(2021):14. |
入库方式： OAI收割
来源：海洋研究所
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