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标题：Quantification of greenhouse gases emission from sugarcane burnings: a study case in savanna areas of Brazil
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作者：Alcione Borges ; Manuel Eduardo Ferreira ; Marlon Nemayer 等
期刊名称：Revista Brasileira de Ciências Ambientais
印刷版ISSN：1808-4524
电子版ISSN：2176-9478
出版年度：2011
期号：22
页码：60-65
出版社：Associação Brasileira de Engenharia Sanitária e Ambiental
摘要：In Brazil, the cultivation of sugar cane is regarded as emitting greenhouse gases (GHGs) when associatedwith the use of burnings in the pre-‐harvest, depending also on the physiognomy of native vegetationconverted to its installation (i.e. in the format of grass, bushes or trees). This study aims at estimatingGHG emissions in areas of sugarcane cultivation in the State of Goiás, core area of the Cerrado biome,between 2005 and 2009. Thus, it was considered the hypothetical use of pre-‐harvest burning and itsgradual reduction. The areas with sugarcane fields and where fire is used were also identified, providingactual data for the recalculation of GHC emissions. The maps show a concentration of sugarcane cultivationin the southern, central and southwestern areas of Goiás. Assuming all that sugarcane production is exposedto fire (during the reference period), it was observed the emission of four greenhouse gases (methane, nitrous oxide, carbon monoxide and nitrogen oxide). The Federal Law helps restrain the use of fire, allowingthe replacement of this technology. In Goiás, the extent of areas with burning cane fields are fragmentedand small, emitting 105.95 Gg C-‐CO2e in the period studied (14.75% of total area for planting of thesugarcane), making production relatively clean.
关键词：Savanna environment; Cerrado; Sugarcane; Greenhouse gases emission; Burnings.