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| DOI | 10.1038/s41467-023-44647-4 |
| Microbially mediated mechanisms underlie soil carbon accrual by conservation agriculture under decade-long warming | |
| 发表日期 | 2024 |
| EISSN | 2041-1723 |
| 起始页码 | 15 |
| 结束页码 | 1 |
| 卷号 | 15期号:1 |
| 英文摘要 | Increasing soil organic carbon (SOC) in croplands by switching from conventional to conservation management may be hampered by stimulated microbial decomposition under warming. Here, we test the interactive effects of agricultural management and warming on SOC persistence and underlying microbial mechanisms in a decade-long controlled experiment on a wheat-maize cropping system. Warming increased SOC content and accelerated fungal community temporal turnover under conservation agriculture (no tillage, chopped crop residue), but not under conventional agriculture (annual tillage, crop residue removed). Microbial carbon use efficiency (CUE) and growth increased linearly over time, with stronger positive warming effects after 5 years under conservation agriculture. According to structural equation models, these increases arose from greater carbon inputs from the crops, which indirectly controlled microbial CUE via changes in fungal communities. As a result, fungal necromass increased from 28 to 53%, emerging as the strongest predictor of SOC content. Collectively, our results demonstrate how management and climatic factors can interact to alter microbial community composition, physiology and functions and, in turn, SOC formation and accrual in croplands. Agricultural soil C dynamics under climate change are difficult to predict. Here, the authors report that experimental warming increases soil organic C stocks in conservation agriculture but not in conventional agriculture, which appears driven by soil microbial responses to no tillage and C inputs from the crops. |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:001138402600032 |
| 来源期刊 | NATURE COMMUNICATIONS
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/288320 |
| 作者单位 | China Agricultural University; University of Exeter; Scotland's Rural College; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Chinese Academy of Sciences; Research Center for Eco-Environmental Sciences (RCEES); Tsinghua University; University of Gottingen; Colorado State University; University of Oklahoma System; University of Oklahoma - Norman; University of Oklahoma System; University of Oklahoma - Norman; University of Oklahoma System; University of Oklahoma - Norman; University of Oklahoma System; University of Oklahoma - Norman; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory |
| 推荐引用方式 GB/T 7714 | . Microbially mediated mechanisms underlie soil carbon accrual by conservation agriculture under decade-long warming[J],2024,15(1). |
| APA | (2024).Microbially mediated mechanisms underlie soil carbon accrual by conservation agriculture under decade-long warming.NATURE COMMUNICATIONS,15(1). |
| MLA | "Microbially mediated mechanisms underlie soil carbon accrual by conservation agriculture under decade-long warming".NATURE COMMUNICATIONS 15.1(2024). |
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