文章基本信息

标题：Emissions from Fire in Sub-Saharan Africa: the Magnitude of Sources, Their Variability and Uncertainty
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作者：Robert J SCHOLES ; Sally ARCHIBALD ; Graham von MALTITZ 等
期刊名称：Global Environmental Research
印刷版ISSN：1343-8808
出版年度：2011
卷号：15
期号：1
语种：English
出版社：国际环境研究会
摘要：About half of the global gas and particle emissions to the atmosphere resulting from the burning of bio- mass originate from sub-Saharan Africa. There are four principal pathways: wildfires, the use of biomass fuels for energy, burning associated with deforestation, and the burning of agricultural residues. The total amount of biomass consumed by all four pathways is estimated from a review of many studies to be around 1400 Tg dry matter per year, with a 95% confidence interval of 1,200 to 1,600 Tg DM/y. Of this about 57% is consumed by wildfires, 36% for domestic and industrial energy, and around 3% each as in-field combustion associated with land use change and agricultural residue burning. While the overall emissions are relatively well-constrained (an uncertainty of around ±14%, about the same size as the interannual variability) by convergence between bottom-up and top down measures, the contribution from individual sources, and of individual pyrogenic trace gases, remains much less certain.