Análise emergética do babaçu e da macaúba quando destinados à produção de biodiesel

Abstract

This dissertation uses emergy analysis for evaluating the potential of extractive production of babassu coconut and coconut macaúba aiming for biodiesel production system. With the objective of evaluating the system for its environmental, economic and social sustainability with the smallest possible negative impact, in this dissertation, diagrams and emergy indices of extractive production of babassu coconut and coconut macaúba were produced, based on the area an acre for the brazilian cerrado. Emergy the diagrams show that the babassu palm trees and macaúba provide economic and environmental benefits as: the ambient temperature control; infiltration and percolation of water into the soil, prevents soil erosion; promotes the evaporation of water; photosynthesis, absorbing CO2 and generating oxygenated air; production of biomass and organic matter; production of biodiesel and ethanol and handcrafted products. The emergy indices calculated for the babassu and for the Macaúba were: total emergy (Y); total emergy (Y), transformity (Tr), emergy yield rate (EYR), renewability (% R), emergy investment ratio (EIR), environmental load (ELR), emergy sustainability index; and emergy interchange rate (EER). It was concluded after of calculations of emergy indices that babassu and macaúba have a positive balance to the economic and social use in a balanced way. The final results obtained for the extractivism and production of babassu and macaúba, we highlight the index Transformity showing babassu more efficient transformation of energy and more environmentally adapted and, the sustainability index, which shows both the fruits that the system is sustainable, especially in the long run.