Climate Change Data Portal
| DOI | 10.1016/j.orggeochem.2024.104756 |
| Root-derived carbon stocks in formerly deep-ploughed soils - A biomarker-based approach | |
| 发表日期 | 2024 |
| ISSN | 0146-6380 |
| EISSN | 1873-5290 |
| 起始页码 | 190 |
| 卷号 | 190 |
| 英文摘要 | Roots can add significant amounts of carbon (C) to the subsoil, which improves soil physical properties and can mitigate climate change. About 5% of croplands in Germany have been deep-ploughed (30-120 cm) at least once. This can provide better root access to the subsoil and may increase yields, but little is known on the fate of root-derived C in the subsoil (at depth greater than 30 cm) after deep-ploughing. We hypothesized that five decades after deep-ploughing, root-derived C stocks were higher than conventionally ploughed treatments due to better root development. We analysed suberin and cutin monomers as tracers for root- and shoot-derived C at three former deep-ploughed sites in Northern Germany with different soil textures and deep-ploughing depths. Concentrations of suberin monomers in the soil positively correlated with root biomass; this was most pronounced at one sandy site, but had higher variability at the other two sites due to crops with different root systems in the crop rotation, lower root development, and more favourable conditions for C decomposition. Suberin contributed more to the bulk soil organic carbon (SOC) stocks than cutin throughout the soil profile at all sites. The contribution of suberin monomers to the bulk SOC stock at silty site Banteln and the sandy site Essemuhle was 38% higher in the deep-ploughed plots than at the reference plot, respectively, these differences were most visible in the subsoil of Essemuhle. We conclude that as C stocks and root development increase, suberin SOC stocks also increase, especially in sandy subsoils with low pH. |
| 英文关键词 | Root-derived carbon; Suberin; Plant belowground biomass; Biomarker; Deep-ploughing; Carbon storage; Subsoil |
| 语种 | 英语 |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:001203047300001 |
| 来源期刊 | ORGANIC GEOCHEMISTRY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/289769 |
| 作者单位 | University of Bonn; Johann Heinrich von Thunen Institute |
| 推荐引用方式 GB/T 7714 | . Root-derived carbon stocks in formerly deep-ploughed soils - A biomarker-based approach[J],2024,190. |
| APA | (2024).Root-derived carbon stocks in formerly deep-ploughed soils - A biomarker-based approach.ORGANIC GEOCHEMISTRY,190. |
| MLA | "Root-derived carbon stocks in formerly deep-ploughed soils - A biomarker-based approach".ORGANIC GEOCHEMISTRY 190(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
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。
