Long-chain 1,3-diols in a land-estuary-sea continuum: Tracers for soil organic matter
文献类型：期刊论文
| 作者 | Zhu, Xiaowei1; Jia, Guodong2; Mao, Shengyi3; Guo, Wei4; Li, Gang1; Yan, Wen1,5 |
| 刊名 | CHEMICAL GEOLOGY
 |
| 出版日期 | 2024-12-20 |
| 卷号 | 670页码:10 |
| 关键词 | 1,3-diols Soil organic matter Soil erosion Land-estuary-sea transect South China |
| ISSN号 | 0009-2541 |
| DOI | 10.1016/j.chemgeo.2024.122411 |
| 通讯作者 | Zhu, Xiaowei(miseraboy@126.com) |
| 英文摘要 | The fate of terrestrial organic matter (OM) in land-sea transition is critical to earth surface carbon cycling, which needs to be tracked with proper proxies. Existing proxies are mostly derived from terrestrial higher plants, whereas proxies from soil bacteria, another critical soil OM producers, are scarce. Here, we investigate the potential of a suite of C22-28 even carbon-numbered 1,3-diols as a soil bacterial tracer, and hence as soil OM proxy, using a range of biological (plants and litters) and natural (soils, suspended particulate matters (SPMs) and sediments) materials in a land-estuary-sea continuum in tropical South China. The 1,3-diols are ubiquitous in soils, SPMs and sediments but not detected in living plants and leaf litters, thus ruling out plant origin of these diols. In a soil profile, C22-26 1,3-diols are abundant in the upper high-oxygen layers but lacking in the deeper low-oxygen layers, implying their aerobic bacterial origin. By contrast, C-28 1,3-diol appears only in low-oxygen layers, perhaps due mainly to its anaerobic bacterial origin. In the estuary, the spatiotemporal distribution patterns of 1,3-diols take the characteristics of their terrigenous origin, exhibiting higher abundances in wet season-collected SPMs and overall decreasing contents with increasing salinities. The estuarine SPMs and surface sediments show higher %C-28 1,3-diol than surface sediments on the coastal shelf, implying that the former receive more OM contribution from the deep soils. This phenomenon is explained to reflect a stronger soil erosion into the deep in the pre-sampling year as recorded by estuarine materials, and a multi-year mean, weaker erosion as recorded by coastal surface sediments. Our study demonstrates that 1,3-diols are applicable as a tracer for soil OM input from land biosphere to marine realm in tropical South China, but their suitability in broad other settings should be assessed especially in those that may encounter with plant-derived 1,3-diols. |
| WOS关键词 | SOUTH CHINA SEA ; DIALKYL GLYCEROL TETRAETHERS ; 3-HYDROXY FATTY-ACIDS ; PEARL RIVER ESTUARY ; CUTICULAR WAX ; SECONDARY ALCOHOLS ; CARBON BURIAL ; TERRESTRIAL ; ALKANEDIOLS ; DISTRIBUTIONS |
| 资助项目 | National Natural Science Foundation of China[42030504] ; National Natural Science Foundation of China[42176079] ; National Natural Science Foundation of China[42373029] ; Guangdong Basic and Applied Basic Research Foundation[2022A1515012182] ; Guangdong Basic and Applied Basic Research Foundation[2024A1515012382] ; National Key R & D Program of China[2021YFC3100600] ; South China Sea Institute of Oceanology of the Chinese Academy of Sciences[SCSIO2023QY05] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001318403900001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation ; National Key R & D Program of China ; South China Sea Institute of Oceanology of the Chinese Academy of Sciences |
| 源URL | [http://ir.giec.ac.cn/handle/344007/42924]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhu, Xiaowei |
| 作者单位 | 1.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Peoples R China 2.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.East China Univ Technol, Coll Water Resources & Environm Engn, Nanchang 330013, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Xiaowei,Jia, Guodong,Mao, Shengyi,et al. Long-chain 1,3-diols in a land-estuary-sea continuum: Tracers for soil organic matter[J]. CHEMICAL GEOLOGY,2024,670:10. |
| APA | Zhu, Xiaowei,Jia, Guodong,Mao, Shengyi,Guo, Wei,Li, Gang,&Yan, Wen.(2024).Long-chain 1,3-diols in a land-estuary-sea continuum: Tracers for soil organic matter.CHEMICAL GEOLOGY,670,10. |
| MLA | Zhu, Xiaowei,et al."Long-chain 1,3-diols in a land-estuary-sea continuum: Tracers for soil organic matter".CHEMICAL GEOLOGY 670(2024):10. |
入库方式： OAI收割
来源：广州能源研究所
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