Molecular 14C evidence for contrasting turnover and temperature sensitivity of soil organic matter components
文献类型：期刊论文
| 作者 | Jia, Juan; Liu, Zongguang; Haghipour, Negar; Wacker, Lukas; Zhang, Hailong; Sierra, Carlos A.; Ma, Tian; Wang, Yiyun; Chen, Litong; Luo, Ao |
| 刊名 | ECOLOGY LETTERS
 |
| 出版日期 | 2023 |
| 卷号 | 26期号:5页码:778 |
| 英文摘要 | Climate projection requires an accurate understanding for soil organic carbon (SOC) decomposition and its response to warming. An emergent view considers that environmental constraints rather than chemical structure alone control SOC turnover and its temperature sensitivity (i.e., Q(10)), but direct long-term evidence is lacking. Here, using compound-specific radiocarbon analysis of soil profiles along a 3300-km grassland transect, we provide direct evidence for the rapid turnover of lignin-derived phenols compared with slower-cycling molecular components of SOC (i.e., long-chain lipids and black carbon). Furthermore, in contrast to the slow-cycling components whose turnover is strongly modulated by mineral association and exhibits low Q(10), lignin turnover is mainly regulated by temperature and has a high Q(10). Such contrasts resemble those between fast-cycling (i.e., light) and mineral-associated slow-cycling fractions from globally distributed soils. Collectively, our results suggest that warming may greatly accelerate the decomposition of lignin, especially in soils with relatively weak mineral associations. |
| 源URL | [http://210.75.249.4/handle/363003/61673]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Jia, Juan,Liu, Zongguang,Haghipour, Negar,et al. Molecular 14C evidence for contrasting turnover and temperature sensitivity of soil organic matter components[J]. ECOLOGY LETTERS,2023,26(5):778. |
| APA | Jia, Juan.,Liu, Zongguang.,Haghipour, Negar.,Wacker, Lukas.,Zhang, Hailong.,...&Feng, Xiaojuan.(2023).Molecular 14C evidence for contrasting turnover and temperature sensitivity of soil organic matter components.ECOLOGY LETTERS,26(5),778. |
| MLA | Jia, Juan,et al."Molecular 14C evidence for contrasting turnover and temperature sensitivity of soil organic matter components".ECOLOGY LETTERS 26.5(2023):778. |
入库方式： OAI收割
来源：西北高原生物研究所
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