@InProceedings{BordonalFiAgAdMeRuSc:2012:Po2020,
               author = "Bordonal, R. O. and Figueiredo, E. B. and Aguiar, D. A. and Adam, 
                         M. and Mello, M. P. and Rudorff, B. F. T. and Scala, N. La",
          affiliation = "FCAV/UNESP - Universidade Estadual Paulista, Brazil and FCAV/UNESP 
                         - Universidade Estadual Paulista, Brazil and {} and {} and {} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and FCAV/UNESP 
                         - Universidade Estadual Paulista, Brazil",
                title = "Avoided greenhouse gas emissions from sugarcane areas due to the 
                         conversion of burned to green harvest in S{\~a}o Paulo State - 
                         Brazil: the potential for 2011 to 2021",
            booktitle = "Abstracts...",
                 year = "2012",
         organization = "Planet Under Pressure Conference, (PUP).",
             keywords = "greenhouse gas emissions, sugarcane areas, biofuels, S{\~a}o 
                         Paulo State, Brazil.",
             abstract = "Biofuels have been cited as an alternative to reduce greenhouse 
                         gas (GHG) emissions related to fossil fuels use. However, its 
                         cultivation still faces some socio-economic and environmental 
                         challenges to overcome, in particular the elimination of the 
                         burning practice during harvest. This study aimed at estimating 
                         the GHG emissions avoided by replacing the sugarcane harvest 
                         system from burned to green harvest (mechanized) in sugarcane 
                         areas of S{\~a}o Paulo State, Brazil. Estimates were calculated 
                         considering the period from 2011 until 2021, when the burning 
                         practice should be eliminated, as established by law. Applying the 
                         IPCC (2006) methodologies, the annual emission balance 
                         contemplates both agricultural and mobile sources of GHG, 
                         according to the mean annual use of supplies (per hectare per 
                         year). The sources of GHG emission considered were associated with 
                         the following agricultural practices: i) sugarcane residue 
                         burning; ii) direct and indirect N2O emissions from N synthetic 
                         fertilizer applied on soil, organic composts such as vinasse and 
                         filtercake application and sugarcane residues left on soils after 
                         green harvest; iii) lime application; and iv) emission from fossil 
                         fuel used. Remote sensing images were used to evaluate whether the 
                         harvest was performed with or without the burning practice on a 
                         cultivated area of 4.72 Mha in crop year 2010/2011. It was found 
                         that 2.10 Mha (44.4%) were burned prior to harvest (Canasat, 
                         2011). Considering an annual conversion rate from burned to green 
                         harvest of 200,000 ha during a period of 10 years, the burning 
                         practice will be eliminated by 2021 accounting for an avoided 
                         emission of 3.7 Mt CO2eq, not considering the soil carbon 
                         sequestration. In addition, applying the IPCC (2006) methodologies 
                         to estimate the potential soil carbon sequestration due to 
                         conversion from burned to green harvested areas, the estimates 
                         indicate a supplementary potential sequestration of 6.2 Mt CO2 for 
                         the estimated period.",
  conference-location = "London",
      conference-year = "26-29 Mar. 2012",
        urlaccessdate = "17 maio 2024"
}