Temporal analysis of the reduction in gas emission in areas of mechanically-harvested sugarcane using satellite imagery

Abstract

C. Luna Arraes, J. Camacho-Tamayo, T. Tarlé Pissarra, C.P. Bueno, and S. Campos. 2010. Temporal analysis of the reduction in gas emission in areas of mechanically-harvested sugarcane using satellite imagery. Cien. Inv. Agr. 37(1):113-121. The primary objective of this study was to estimate the amount of gas not emitted into the air in areas cultivated with sugarcane (Saccharum officinarum) that were mechanically harvested. Satellite images CBERS-2/CCD, from 08-13-2004, 08-14-2005, 08-15-2006 and 08-16-2007, of northwestern São Paulo State were processed using the Geographic Information System (GIS)-IDRISI 15.0. Areas of interest (the mechanically-harvested sugarcane fields) were identified and quantified based on the spectral response of the bands studied. Based on these data, the amount of gas that was not emitted was evaluated, according to the estimate equation proposed by the Intergovernmental Panel on Climate Change (IPCC). with sugarcane, showed a significant increase of mechanical harvesting in the study area and a reduction of gas emissions of more than 300,000 t yr -1 .

Chemical properties of ultisol in different tillage systems under sugarcane cultivation

“…Proper planning the soil management requires the manipulation of basic information aiming to prolong its productive capacity and rationality, as well as its use and conservation (Gomes et al, 1993). The soil erodibility is the integrated effect of processes that regulate the raindrops when they get into contact with the soil and its respective resistance regarding the breakdown of particles and hence their movement, indicating the degree of susceptibility to erosion in relation to inherent soil properties (Arraes et al, 2010). Soil organic matter is crucial for biological, chemical, and physical soil functioning and tillage practices has been reported to reduce its concentrations and increase its decomposition rates (Balesdent et al, 2000).…”