Sustainability
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Entre mai 2006 et avril 2007, Native a effectue un bilan des émissions de gaz a effet de serre (GES) de la filière biologique de l'Usine de Sao Francisco (UFRA). Cette évaluation a été réalisée selon le protocole GHG - modèle international pour mesurer les émissions - en considérant les effets de la culture de la canne et la production de sucre et d'alcool a l'usine. Compte-tenu qu'une partie de cette production est destinée a l'exportation, l'énergie nécessaire pour le transport de ces marchandises vers leur destination finale (USA, Europe, Japon) a également été prise en compte.

Les quantités d'émissions trouvées pour UFRA sont plus basses que les niveaux moyens d'émissions de l'industrie de la canne a sucre, du fait de ses méthodes de production biologiques. Comparée a la production de sucre a partir de la betterave en Europe ou au Japon, ou encore a la production de sucre a partir de la betterave ou du mais aux Etats-Unis, les écarts sont encore plus nets, car ces méthodes de production fonctionnent a partir d'énergies fossiles alors que UFRA utilise de l'énergie a base de bagasse de canne a sucre.
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Water Resources in the Green Cane Project

The integration of the agronomic techniques our production system promotes has also afforded a significant contribution to water resources in agricultural areas. Permanently covering the soil with sugarcane fields and its straw or with crops in rotation reduces the loss of water through evaporation, in addition to increasing its water retention and infiltration capacity through the accumulation of organic matter and the reconstitution of its biostructure, i.e., balanced portions of land, water, air, and living organic matter in the soil.  
The entire system's intense vitality - particularly the life the soil shelters, which is established both by its coverage and by the agro-ecological production system, which does not use pesticides and synthetic fertilizers - acts as a natural filter, ensuring water quality while also avoiding contamination. We are certain that the Green Cane Project has effectively contributed to increase freshwater flow in the springs that arise or cross through the farms.

There are two emblematic cases that definitely prove this assertion. The Santa Rita and Água Branca farms used to have plant-covered canals that were originally built to drain away excess water in the summer, when it rains heavily in the region. Years after the Green Cane Project was deployed on these farms, the freshwater flow in these canals has become permanent, persisting even during the winter. To protect these new springs, we have reforested the banks, establishing an adequate riparian forest there.
The pictures below compare the Santa Rita Farm in 1971 and in 2008, respectively fifteen years before the Green Cane Project got underway and twenty-two years after its implementation. The pictures show that there was nothing in the place now occupied by the streams.