GSTDTAP  > 地球科学
DOI10.1073/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
ISSN0027-8424
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
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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
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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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