Rising methane emissions in response to climate change in Northern Eurasia during the 21st century
文献类型：期刊论文
| 作者 | Zhu, Xudong1; Zhuang, Qianlai1,2; Chen, Min1; Sirin, Andrey3; Melillo, Jerry4; Kicklighter, David4; Sokolov, Andrei5; Song, Lulu6 |
| 刊名 | ENVIRONMENTAL RESEARCH LETTERS
 |
| 出版日期 | 2011-10-01 |
| 卷号 | 6期号:4 |
| 关键词 | Methane Wetlands Terrestrial Ecosystem Model Northern Eurasia |
| 文献子类 | Article |
| 英文摘要 | We used a biogeochemistry model, the Terrestrial Ecosystem Model (TEM), to examine the methane (CH(4)) exchanges between terrestrial ecosystems and the atmosphere in Northern Eurasia from 1971 to 2100. Multiple model simulations using various wetland extent datasets and climate change scenarios were conducted to assess the uncertainty of CH(4) fluxes, including emissions and consumption. On the basis of these simulations we estimate the current net emissions in the region to be 20-24 Tg CH(4) yr(-1) (1 Tg = 10(12) g), two-thirds of which are emitted during the summer. In response to climate change over the 21st century, the annual CH(4) emissions in the region are projected to increase at a rate of 0.06 Tg CH(4) yr(-1), which is an order of magnitude greater than that of annual CH(4) consumption. Further, the annual net CH(4) emissions are projected to increase by 6-51% under various wetland extent datasets and climate scenarios by the end of the 21st century, relative to present conditions. Spatial patterns of net CH(4) emissions were determined by wetland extent. Net CH(4) emissions were dominated by wetlands within boreal forests, grasslands and wet tundra areas in the region. Correlation analyses indicated that water table depth and soil temperature were the two most important environmental controls on both CH(4) emissions and consumption in the region. Our uncertainty analyses indicated that the uncertainty in wetland extent had a larger effect on future CH(4) emissions than the uncertainty in future climate. This study suggests that better characterization of the spatial distribution and the natural diversity of wetlands should be a research priority for quantifying CH(4) fluxes in this region. |
| WOS关键词 | NATURAL WETLANDS ; WESTERN SIBERIA ; CH4 OXIDATION ; WATER-TABLE ; TUNDRA ; MODEL ; SOILS ; FLUX ; TEMPERATURE ; SENSITIVITY |
| 语种 | 英语 |
| WOS记录号 | WOS:000298674700049 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/68039]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhu, Xudong |
| 作者单位 | 1.Purdue Univ, Dept Earth & Atmospher Sci, W Lafayette, IN 47907 USA 2.Purdue Univ, Dept Agron, W Lafayette, IN 47907 USA 3.Russian Acad Sci, Inst Forest Sci, Lab Peatland Forestry & Ameliorat, Uspenskoye, Moscow Oblast, Russia 4.Marine Biol Lab, Ctr Ecosyst, Woods Hole, MA 02543 USA 5.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Xudong,Zhuang, Qianlai,Chen, Min,et al. Rising methane emissions in response to climate change in Northern Eurasia during the 21st century[J]. ENVIRONMENTAL RESEARCH LETTERS,2011,6(4). |
| APA | Zhu, Xudong.,Zhuang, Qianlai.,Chen, Min.,Sirin, Andrey.,Melillo, Jerry.,...&Song, Lulu.(2011).Rising methane emissions in response to climate change in Northern Eurasia during the 21st century.ENVIRONMENTAL RESEARCH LETTERS,6(4). |
| MLA | Zhu, Xudong,et al."Rising methane emissions in response to climate change in Northern Eurasia during the 21st century".ENVIRONMENTAL RESEARCH LETTERS 6.4(2011). |
入库方式： OAI收割
来源：地理科学与资源研究所
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