Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1704552114 |
Nitrous oxide emissions are enhanced in a warmer and wetter world | |
Griffis, Timothy J.1; Chen, Zichong1; Baker, John M.1,2; Wood, Jeffrey D.1,3; Millet, Dylan B.1; Lee, Xuhui4,5; Venterea, Rodney T.1,2; Turner, Peter A.1,6 | |
2017-11-07 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:45页码:12081-12085 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | Nitrous oxide (N2O) has a global warming potential that is 300 times that of carbon dioxide on a 100-y timescale, and is of major importance for stratospheric ozone depletion. The climate sensitivity of N2O emissions is poorly known, which makes it difficult to project how changing fertilizer use and climate will impact radiative forcing and the ozone layer. Analysis of 6 y of hourly N2O mixing ratios from a very tall tower within the US Corn Belt-one of the most intensive agricultural regions of the world-combined with inverse modeling, shows large interannual variability in N2O emissions (316 Gg N2O-N center dot y(-1) to 585 Gg N2O-N center dot y(-1)). This implies that the regional emission factor is highly sensitive to climate. In the warmest year and spring (2012) of the observational period, the emission factor was 7.5%, nearly double that of previous reports. Indirect emissions associated with runoff and leaching dominated the interannual variability of total emissions. Under current trends in climate and anthropogenic N use, we project a strong positive feedback to warmer and wetter conditions and unabated growth of regional N2O emissions that will exceed 600 Gg N2O-N center dot y(-1), on average, by 2050. This increasing emission trend in the US Corn Belt may represent a harbinger of intensifying N2O emissions from other agricultural regions. Such feedbacks will pose a major challenge to the Paris Agreement, which requires large N2O emission mitigation efforts to achieve its goals. |
英文关键词 | nitrous oxide emissions agriculture climate change synthetic nitrogen atmospheric inversion |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414631200090 |
WOS关键词 | MISSISSIPPI RIVER ; N2O EMISSIONS ; CORN ; SOILS ; MODEL ; FERTILIZERS ; DECREASE ; INCREASE ; METHANE ; CROPS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/204816 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Minnesota Twin Cities, Dept Soil Water & Climate, St Paul, MN 55108 USA; 2.ARS, USDA, St Paul, MN 55108 USA; 3.Univ Missouri, Sch Nat Sci, Columbia, MO 65211 USA; 4.Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA; 5.Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Nanjing 210044, Jiangsu, Peoples R China; 6.Carnegie Inst Sci, Dept Global Ecol, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | Griffis, Timothy J.,Chen, Zichong,Baker, John M.,et al. Nitrous oxide emissions are enhanced in a warmer and wetter world[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(45):12081-12085. |
APA | Griffis, Timothy J..,Chen, Zichong.,Baker, John M..,Wood, Jeffrey D..,Millet, Dylan B..,...&Turner, Peter A..(2017).Nitrous oxide emissions are enhanced in a warmer and wetter world.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(45),12081-12085. |
MLA | Griffis, Timothy J.,et al."Nitrous oxide emissions are enhanced in a warmer and wetter world".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.45(2017):12081-12085. |
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