Methane Concentration in the Heartwood of Living Trees and Estimated Methane Emission on Stems in Upland Forests
文献类型：期刊论文
| 作者 | Wang, Zhi-Ping; Li, Huan-Long; Wu, Hong-Hui; Han, Shi-Jie; Huang, Jian-Hui ; Zhang, Xi-Mei; Han, Xing-Guo
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| 刊名 | ECOSYSTEMS
 |
| 出版日期 | 2021 |
| 卷号 | 24期号:6页码:1485-1499 |
| 关键词 | Tree Species Heartwood Soil Moisture Field Investigation Extrapolating Uncertainty |
| ISSN号 | 1432-9840 |
| DOI | 10.1007/s10021-020-00596-3 |
| 文献子类 | Article |
| 英文摘要 | The stems of living trees in upland forests might contribute to the global methane (CH4) source, but the contribution is poorly understood. We investigated CH4 concentration in the heartwood of living trees in dominant upland forests using field campaign and subsequently evaluated the importance of stem CH4 emission in the context of the global total. We found that only 0%, 9.8%, and 1.8% of stems of living trees had substantial CH4 concentration in heartwood of >= 10,000 mu L L-1 in the boreal, temperate, and tropical and subtropical upland forests investigated, respectively. CH4 concentration in heartwood depended mainly upon tree species and subsequently soil moisture. Relationships fitted indicate that CH4 concentration followed a power function with respect to water content in heartwood, whereas nitrous oxide (N2O) or carbon dioxide (CO2) concentration linearly increased with water content in heartwood. Stem CH4 emission was estimated at approximately 0.2-2 Tg yr(-1) globally, corresponding to less than 0.4% of the global total including all natural plus anthropogenic sources. Water content in heartwood is positively associated with soil water content. Soil water content rarely exceeds 40% v/v in upland forests, indicating stem CH4 emission occurs mainly in the areas of low-lying upland forests with occasionally moist soils. More attentions should be paid on low-lying upland forests and forested wetlands in future when stem CH4 emission needs to be estimated in all forests. Graphic abstract |
| 学科主题 | Ecology |
| 出版地 | NEW YORK |
| 电子版国际标准刊号 | 1435-0629 |
| WOS关键词 | BUDGET |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000616066600001 |
| 出版者 | SPRINGER |
| 资助机构 | National Key Research and Development Program of China [2016YFA0600803] ; National Natural Science Foundation of China [31370493, 41930643] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26343]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.[Wang, Zhi-Ping 2.Huang, Jian-Hui 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Nanxincun 20, Beijing 100093, Peoples R China 4.[Li, Huan-Long 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China 7.Henan Univ, Sch Life Sci, Kaifeng 475004, Henan, Peoples R China 8.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Dryland Agr, MOA, Beijing 100081, Peoples R China 9.Li, Huan-Long |
| 推荐引用方式 GB/T 7714 | Wang, Zhi-Ping,Li, Huan-Long,Wu, Hong-Hui,et al. Methane Concentration in the Heartwood of Living Trees and Estimated Methane Emission on Stems in Upland Forests[J]. ECOSYSTEMS,2021,24(6):1485-1499. |
| APA | Wang, Zhi-Ping.,Li, Huan-Long.,Wu, Hong-Hui.,Han, Shi-Jie.,Huang, Jian-Hui.,...&Han, Xing-Guo.(2021).Methane Concentration in the Heartwood of Living Trees and Estimated Methane Emission on Stems in Upland Forests.ECOSYSTEMS,24(6),1485-1499. |
| MLA | Wang, Zhi-Ping,et al."Methane Concentration in the Heartwood of Living Trees and Estimated Methane Emission on Stems in Upland Forests".ECOSYSTEMS 24.6(2021):1485-1499. |
入库方式： OAI收割
来源：植物研究所
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