Otimiza??o de multiprodutos em povoamentos florestais

摘要

This work aimed to optimize log harvesting by converting them into multiproducts. Thus, data originated from Eucalyptus grandis stands, located in Sabinópolis-MG, were used. Optimized conversion was carried out based on information obtained on available commercial alternatives for logs produced in the stands and on product characteristics. Three alternatives were selected for log use cellulose, energy and sawing, with different maximum and minimum diameter and log length dimensions.The initial problem was to establish an optimized combination that would promote the greatest yield for each utilization alternative. Optimization results show that 1.1; 2.0 and 2.2 m lengths (for energy, sawing and cellulose use, respectively) resulted in greater volumetric production. After selecting the optimum length for each utilization alternative, the combination of these lengths was considered to verify the viability of using the stands for multiproducts. To verify whether optimization was a profitable option an economic analysis of the production was carried out focusing multiproducts versus a single product (cellulose, energy or sawing), by applying the Net Present Value method. The results indicate that multiproduct harvest is more profitable than single use, being the best alternative for forest stand-product profitability.