Hydrodynamic and geochemical controls on soil carbon mineralization upon entry into aquatic systems
文献类型：期刊论文
| 作者 | Liu, Ting; Liu, Xiaoqing3; Pan, Qi3; Liu, Shaoda2; Feng, Xiaojuan3
|
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2023 |
| 卷号 | 229 |
| 关键词 | Erosion CO2 emission Aquatic systems Turbulent conditions Static hydrological conditions Aggregate |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/j.watres.2022.119499 |
| 文献子类 | Article |
| 英文摘要 | Erosion is the most widespread form of soil degradation and an important pathway of carbon transfer from land into aquatic systems, with significant impact on water quality and carbon cycle. However, it remains debatable whether erosion induces a carbon source or sink, and the fate of eroded soil carbon in aquatic systems remains poorly constrained. Here, we collect 41 representative soils from seven erosion-influenced basins and conduct microcosm simulation experiments to examine the fate of soil carbon under three different scenarios. We showed that soil carbon mineralization was generally promoted (by up to 10 times) in water under turbulence relative to in soils, but suppressed under static conditions upon entering into aquatic systems. Moreover, the enhancement of mineralization in turbulent systems is primarily related to soil aggregate content, while suppression in static systems positively relates to macromolecule abundance, indicating that soil geochemistry affects the magnitude of hydrodynamic effects on carbon mineralization. Random forest model further predicts that erosion may induce significant carbon sources in basins dominated by turbulent waters and aggregate-rich soils. Our findings demonstrate hydrodynamic and geochemical controls on soil carbon mineralization upon delivery into aquatic systems, which is a non-negligible part of the boundless carbon cycle and must be considered when making region-specific conservation strategies to reduce CO2 emissions from inland waters. |
| 学科主题 | Engineering, Environmental ; Environmental Sciences ; Water Resources |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1879-2448 |
| WOS关键词 | TERRESTRIAL ORGANIC-MATTER ; MICROBIAL COMMUNITY ; BURIAL EFFICIENCY ; INLAND WATERS ; EROSION ; SEDIMENT ; TRANSPORT ; LAKE ; DEGRADATION ; SEQUESTRATION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000904450400005 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; [42025303] ; [41973075] ; [31988102] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/29131]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Ting,Liu, Xiaoqing,Pan, Qi,et al. Hydrodynamic and geochemical controls on soil carbon mineralization upon entry into aquatic systems[J]. WATER RESEARCH,2023,229. |
| APA | Liu, Ting,Liu, Xiaoqing,Pan, Qi,Liu, Shaoda,&Feng, Xiaojuan.(2023).Hydrodynamic and geochemical controls on soil carbon mineralization upon entry into aquatic systems.WATER RESEARCH,229. |
| MLA | Liu, Ting,et al."Hydrodynamic and geochemical controls on soil carbon mineralization upon entry into aquatic systems".WATER RESEARCH 229(2023). |
入库方式： OAI收割
来源：植物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。