Biogeochemical layering and transformation of particulate organic carbon in the Tropical Northwestern Pacific Ocean inferred from δ13C
文献类型：期刊论文
| 作者 | Tian, Detong2,4; Li, Xuegang1,2,3,4; Song, Jinming1,2,3,4; Ma, Jun3,4; Yuan, Huamao1,2,3,4; Duan, Liqin1,2,3,4 |
| 刊名 | OCEAN SCIENCE
 |
| 出版日期 | 2025-07-31 |
| 卷号 | 21期号:4页码:1627-1639 |
| ISSN号 | 1812-0784 |
| DOI | 10.5194/os-21-1627-2025 |
| 通讯作者 | Li, Xuegang(lixuegang@qdio.ac.cn) ; Song, Jinming(jmsong@qdio.ac.cn) |
| 英文摘要 | Particulate organic carbon (POC) serves as the main carrier of the biological pump and determines its transmission efficiency, yet the transformation processes of POC remain incompletely understood. This study reports the vertical distribution of POC, dissolved inorganic carbon (DIC), delta C-13-POC, and delta C-13-DIC in the tropical Northwestern Pacific Ocean (TNPO). The research identified three distinct biogeochemical layers governing POC transformation: the POC rapid synthesis-degradation layer (RSDL, 0-300 m), the net degradation layer (NDL, 300-1000 m), and the stable layer (SL, 1000-2000 m). From the top to the bottom of the RSDL, delta C-13-POC values decreased by an average of 2.23 parts per thousand, while the carbon-to-nitrogen (C:N) ratios increased by an average of 2.3:1, indicating the selective degradation of POC. In the NDL, delta C-13-POC and delta C-13-DIC exhibited a significant negative correlation (r=0.43, p<0.05), indicating a net transformation of POC to DIC. In the SL, POC proved to be resistant to degradation, with POC exhibiting the highest C:N (15:1 on average) and the lowest delta C-13-POC values (average -27.71 parts per thousand). |
| WOS关键词 | BIOLOGICAL PUMP ; UPPER WATER ; MATTER ; DELTA-C-13 ; RATIOS ; TRENDS ; BUDGET ; OXYGEN ; EXPORT ; CYCLE |
| 资助项目 | National Key Research and Development Program of China[2022YFC3104305] ; National Key Research and Development Program[42049909] ; National Natural Science Foundation of China[LSKJ202204001] ; National Natural Science Foundation of China[LSKJ202205001] ; National Natural Science Foundation of China[NORC2021-09] ; Laoshan Laboratory |
| WOS研究方向 | Meteorology & Atmospheric Sciences ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001541127100001 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/202806]  |
| 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 | Li, Xuegang; Song, Jinming |
| 作者单位 | 1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266000, Peoples R China 2.Univ Chinese Acad Sci, Inst Oceanol, Beijing 100049, Peoples R China 3.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Detong,Li, Xuegang,Song, Jinming,et al. Biogeochemical layering and transformation of particulate organic carbon in the Tropical Northwestern Pacific Ocean inferred from δ13C[J]. OCEAN SCIENCE,2025,21(4):1627-1639. |
| APA | Tian, Detong,Li, Xuegang,Song, Jinming,Ma, Jun,Yuan, Huamao,&Duan, Liqin.(2025).Biogeochemical layering and transformation of particulate organic carbon in the Tropical Northwestern Pacific Ocean inferred from δ13C.OCEAN SCIENCE,21(4),1627-1639. |
| MLA | Tian, Detong,et al."Biogeochemical layering and transformation of particulate organic carbon in the Tropical Northwestern Pacific Ocean inferred from δ13C".OCEAN SCIENCE 21.4(2025):1627-1639. |
入库方式： OAI收割
来源：海洋研究所
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