Rising atmospheric CH4 concentration may have significantly influenced the increase in CH4 uptake by forest soils in China (2010-2020)
文献类型：期刊论文
| 作者 | Yang, Meng |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 178页码:113929 |
| 关键词 | Forest soil Methane uptake Global change Atmospheric CH 4 concentration Flux-climate feedback |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2025.113929 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | As the largest terrestrial carbon sink, forests also play a crucial role in CH4 uptake. China is experiencing various global changes, but their impacts on forest CH4 uptake are unclear. Using a random frest model, this study evaluated the CH4 uptake by forest soils in China from 2010 to 2020 and identified the primary drivers behind the interannual trend in CH4 uptake, focusing on environmental changes such as temperature, precipitation, nitrogen deposition, atmospheric CH4 concentration, and land cover change. The results indicated an average CH4 uptake rate of 0.30 +/- 0.04 g CH4 m-2 yr-1, with significant spatial variability. The total regional uptake doubled from 2010 to 2020, reaching an average of 0.80 Tg CH4 yr-1. In addition to forests' role in fixing CO2, the CH4 consumption by forest soil further enhances their contribution to global warming mitigation. Atmospheric CH4 concentration emerged as the most influential factor, driving a 84.3 % increase in uptake. Notably, compared to the amount of CH4 released into the atmosphere, the concurrent increase in CH4 uptake by forest soil was limited. In specific regions, particularly in semi-arid and nitrogen-deficient environments, water conditions and nitrogen deposition surpassed atmospheric CH4 concentration as the dominant drivers. In contrast, temperature and land cover changes had minor effects. This research provides critical insights into the role of Chinese forests in methane dynamics and contributes to a broader understanding of terrestrial methane fluxes under changing environmental conditions. As the first study to quantify the impact of rising atmospheric CH4 concentrations on CH4 uptake by forest soils in China, it emphasizes the importance of incorporating atmospheric CH4 concentration into regional and global models, a factor that has been lacking in some recent studies. |
| URL标识 | 查看原文 |
| WOS关键词 | METHANE UPTAKE ; CARBON SEQUESTRATION ; OXIDATION ; INHIBITION ; NITROGEN ; MODEL ; MICROORGANISMS ; CONSUMPTION ; ECOSYSTEMS ; KINETICS |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001542163800002 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215573]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Yang, Meng |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Meng. Rising atmospheric CH4 concentration may have significantly influenced the increase in CH4 uptake by forest soils in China (2010-2020)[J]. ECOLOGICAL INDICATORS,2025,178:113929. |
| APA | Yang, Meng.(2025).Rising atmospheric CH4 concentration may have significantly influenced the increase in CH4 uptake by forest soils in China (2010-2020).ECOLOGICAL INDICATORS,178,113929. |
| MLA | Yang, Meng."Rising atmospheric CH4 concentration may have significantly influenced the increase in CH4 uptake by forest soils in China (2010-2020)".ECOLOGICAL INDICATORS 178(2025):113929. |
入库方式： OAI收割
来源：地理科学与资源研究所
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