Quantification of greenhouse gases emission from sugarcane burnings: a study case in savanna areas of Brazil

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 a...

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Detalles Bibliográficos
Autores: Borges, Alcione, Ferreira, Manuel Eduardo, Nemayer, Marlon, Miziara, Fausto, Ribeiro, Francis Lee
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:Brasil
Institución:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)
Repositorio:Revista Brasileira de Ciências Ambientais (Online)
Idioma:inglés
OAI Identifier:oai:ojs.www.rbciamb.com.br:article/340
Acceso en línea:https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/340
Access Level:acceso abierto
Palabra clave:Savanna environment, Cerrado, Sugarcane, Greenhouse gases emission, Burnings.
Descripción
Sumario: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.