Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL088875 |
Climate sensitivity of peatland methane emissions mediated by seasonal hydrologic dynamics | |
Xue Feng; M. Julian Deventer; Rachel Lonchar; G. H. Crystal Ng; Stephen D. Sebestyen; D. Tyler Roman; Timothy J. Griffis; Dylan B. Millet; Randall K. Kolka | |
2020-08-21 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Peatlands are among the largest natural sources of atmospheric methane (CH4) worldwide. Peatland emissions are projected to increase under climate change, as rising temperatures and shifting precipitation accelerate microbial metabolic pathways favorable for CH4 production. However, how these changing environmental factors will impact peatland emissions over the long term remains unknown. Here, we investigate a novel dataset spanning an exceptionally long 11 years to analyze the influence of soil temperature and water table elevation on peatland CH4 emissions. We show that higher water tables dampen the springtime increases in CH4 emissions as well as their subsequent decreases during late summer to fall. These results imply that any hydro‐climatological changes in northern peatlands that shift seasonal water availability from winter to summer will increase annual CH4 emissions, even if temperature remains unchanged. Therefore, advancing hydrological understanding in peatland watersheds will be crucial for improving predictions of CH4 emissions. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/291135 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Xue Feng,M. Julian Deventer,Rachel Lonchar,et al. Climate sensitivity of peatland methane emissions mediated by seasonal hydrologic dynamics[J]. Geophysical Research Letters,2020. |
APA | Xue Feng.,M. Julian Deventer.,Rachel Lonchar.,G. H. Crystal Ng.,Stephen D. Sebestyen.,...&Randall K. Kolka.(2020).Climate sensitivity of peatland methane emissions mediated by seasonal hydrologic dynamics.Geophysical Research Letters. |
MLA | Xue Feng,et al."Climate sensitivity of peatland methane emissions mediated by seasonal hydrologic dynamics".Geophysical Research Letters (2020). |
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