DOI: 10.1111/gcb.14499
Scopus记录号: 2-s2.0-85056669247
论文题名: Global ammonia emissions from synthetic nitrogen fertilizer applications in agricultural systems: Empirical and process-based estimates and uncertainty
作者: Xu R. ; Tian H. ; Pan S. ; Prior S.A. ; Feng Y. ; Batchelor W.D. ; Chen J. ; Yang J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2019
卷: 25, 期: 1 起始页码: 314
结束页码: 326
语种: 英语
英文关键词: aerosol
; agricultural systems
; ammonia
; emission factors
; nitrogen fertilizer
Scopus关键词: aerosol
; air quality
; ammonia
; climate change
; ecosystem modeling
; emission
; emission inventory
; farming system
; fertilizer
; global climate
; haze
; nitrogen
; spatial resolution
; uncertainty analysis
; China
; India
; Triticum aestivum
; Zea mays
; ammonia
; fertilizer
; nitrogen
; air pollutant
; analysis
; biological model
; crop production
; procedures
; Air Pollutants
; Ammonia
; Crop Production
; Fertilizers
; Models, Biological
; Nitrogen
英文摘要: Excessive ammonia (NH 3 ) emitted from nitrogen (N) fertilizer applications in global croplands plays an important role in atmospheric aerosol production, resulting in visibility reduction and regional haze. However, large uncertainty exists in the estimates of NH 3 emissions from global and regional croplands, which utilize different data and methods. In this study, we have coupled a process-based Dynamic Land Ecosystem Model (DLEM) with the bidirectional NH 3 exchange module in the Community Multiscale Air-Quality (CMAQ) model (DLEM-Bi-NH 3 ) to quantify NH 3 emissions at the global and regional scale, and crop-specific NH 3 emissions globally at a spatial resolution of 0.5° × 0.5° during 1961–2010. Results indicate that global NH 3 emissions from N fertilizer use have increased from 1.9 ± 0.03 to 16.7 ± 0.5 Tg N/year between 1961 and 2010. The annual increase of NH 3 emissions shows large spatial variations across the global land surface. Southern Asia, including China and India, has accounted for more than 50% of total global NH 3 emissions since the 1980s, followed by North America and Europe. Rice cultivation has been the largest contributor to total global NH 3 emissions since the 1990s, followed by corn and wheat. In addition, results show that empirical methods without considering environmental factors (constant emission factor in the IPCC Tier 1 guideline) could underestimate NH 3 emissions in context of climate change, with the highest difference (i.e., 6.9 Tg N/year) occurring in 2010. This study provides a robust estimate on global and regional NH 3 emissions over the past 50 years, which offers a reference for assessing air quality consequences of future nitrogen enrichment as well as nitrogen use efficiency improvement. © 2018 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117555
Appears in Collections: 气候变化与战略
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Recommended Citation:
Xu R.,Tian H.,Pan S.,et al. Global ammonia emissions from synthetic nitrogen fertilizer applications in agricultural systems: Empirical and process-based estimates and uncertainty[J]. Global Change Biology,2019-01-01,25(1)