Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095264 |
Magnitude and uncertainty of nitrous oxide emissions from North America based on bottom-up and top-down approaches: Informing future research and national inventories | |
R. Xu; H. Tian; N. Pan; R. L. Thompson; J. G. Canadell; E. A. Davidson; C. Nevison; W. Winiwarter; H. Shi; S. Pan; J. Chang; P. Ciais; S. R. S. Dangal; A. Ito; R. B. Jackson; F. Joos; R. Lauerwald; S. Lienert; T. Maavara; D. B. Millet; P. A. Raymond; P. Regnier; F. N. Tubiello; N. Vuichard; K. C. Wells; C. Wilson; J. Yang; Y. Yao; S. Zaehle; F. Zhou | |
2021-11-19 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | We synthesized N2O emissions over North America using 17 bottom-up (BU) estimates from 1980−2016 and five top-down (TD) estimates from 1998−2016. The BU-based total emission shows a slight increase owing to U.S. agriculture, while no consistent trend is shown in TD estimates. During 2007−2016, North American N2O emissions are estimated at 1.7 (1.0−3.0) Tg N yr-1 (BU) and 1.3 (0.9−1.5) Tg N yr-1 (TD). Anthropogenic emissions were twice as large as natural fluxes from soil and water. Direct agricultural and industrial activities accounted for 68% of total anthropogenic emissions, 71% of which was contributed by the U.S. Our estimates of U.S. agricultural emissions are comparable to the EPA greenhouse gas (GHG) inventory, which includes estimates from IPCC tier 1 (emission factor) and tier 3 (process-based modeling) approaches. Conversely, our estimated agricultural emissions for Canada and Mexico are twice as large as the respective national GHG inventories. |
领域 | 气候变化 |
URL | 查看原文 |
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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/341998 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | R. Xu,H. Tian,N. Pan,et al. Magnitude and uncertainty of nitrous oxide emissions from North America based on bottom-up and top-down approaches: Informing future research and national inventories[J]. Geophysical Research Letters,2021. |
APA | R. Xu.,H. Tian.,N. Pan.,R. L. Thompson.,J. G. Canadell.,...&F. Zhou.(2021).Magnitude and uncertainty of nitrous oxide emissions from North America based on bottom-up and top-down approaches: Informing future research and national inventories.Geophysical Research Letters. |
MLA | R. Xu,et al."Magnitude and uncertainty of nitrous oxide emissions from North America based on bottom-up and top-down approaches: Informing future research and national inventories".Geophysical Research Letters (2021). |
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