DOI: 10.1016/j.atmosenv.2018.02.003
Scopus记录号: 2-s2.0-85041506451
论文题名: Ammonia emissions from the agriculture sector in Argentina; 2000–2012
作者: Castesana P ; S ; , Dawidowski L ; E ; , Finster L ; , Gómez D ; R ; , Taboada M ; A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 178 起始页码: 293
结束页码: 304
语种: 英语
英文关键词: Ammonia emission inventory
; Changes in agro-technology
; Manure related activities
; Nitrogen fertilizer use
; South America
Scopus关键词: Agricultural wastes
; Agriculture
; Air quality
; Ammonia
; Atmospheric movements
; Crops
; Cultivation
; Dairies
; Incineration
; Manures
; Nitrogen compounds
; Nitrogen fertilizers
; Time series
; Urea
; Waste incineration
; Waste management
; Agricultural activities
; Agricultural emissions
; Agricultural practices
; Ammonia emissions
; Chemical transport models
; Fertilizer applications
; South America
; Spatial disaggregation
; Fertilizers
; Bos
; Glycine max
; Triticum aestivum
; Zea mays
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Agriculture is one of the key economic sectors in Argentina and, in the last decades, the increase in prices and competitiveness of some grains has imposed important changes. In this process, crop cultivation occupied significant extensions of land areas previously dedicated to livestock farming, which in turn have experienced intensification in terms of production through an increasing share of feedlot systems. The agriculture sector is the main NH3 emitter in Argentina, however no inventory developed locally has been thus far available. We estimated the time series 2000–2012 of NH3 emissions, both at national and spatially disaggregated levels. National NH3 emissions in 2012 amounted to 0.31 ± 0.08 Tg, with the use of mineral fertilizers accounting for 43.0%, manure in pasture 32.5%, manure management 23.0% and agricultural waste burning 1.5%. Urea use was the major source of NH3 emissions and its application on wheat and corn crops dominated the trend. Emissions from open biomass burning were estimated but not included in the national totals because of the difficulties in differentiating between agricultural (i.e., prescribed burning of savannas) and non-agricultural emission sources. Compared to this work, NH3 emissions reported by EDGAR were 83% higher than our estimates. The time series of spatially distributed NH3 emission estimates clearly showed the effect of the expansion of cropland, the displacement of planted areas of N-fertilizes crops by competing soybean cultivation and the relocation and intensification of beef cattle production. This new inventory constitutes a tool for policies concerning the impact of agricultural activities on air quality and contributes with more accurate and updated information useful for atmospheric chemical transport modeling. The accuracy and applicability of the inventory may be improved by local studies aimed at refining the spatial disaggregation by focusing in specific areas of fertilizer application, reflecting seasonal and monthly patterns in agricultural practices and climate conditions and addressing likely changes in diets, productivity and excretion rates over time. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82943
Appears in Collections: 气候变化事实与影响
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作者单位: Instituto de Investigación e Ingeniería Ambiental, Universidad Nacional de San Martín (3iA-UNSAM)Buenos Aires, Argentina; Facultad Regional Buenos Aires, Universidad Tecnológica Nacional (UTN), CABA, Argentina; Comisión Nacional de Energía Atómica (CNEA)Buenos Aires, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
Recommended Citation:
Castesana P,S,, Dawidowski L,et al. Ammonia emissions from the agriculture sector in Argentina; 2000–2012[J]. Atmospheric Environment,2018-01-01,178