Estudo comparativo dos estoques das diferentes fontes geradoras de resíduos de exploração florestal em áreas manejadas nos municípios de Anapú e Portel, Pará.

Abstract

The residue left after the activity forestry exploration of sustainable forest management plan represents a significant economic variable, especially due to the valuation of raw material and the fact that they are a source to supply the demands of the steel industries in the Pará State, creating jobs and income. This work aims to realize a comparative study of the stock by sources of forestry exploration residues in four areas named Terra Alta-Tuerê farm and Santo Antônio farm located in Portel city, Pedra Escrita farm and Santa Helena farm located in Anapú city, state of Pará. The stocks residues were quantified by generating source including antlers, trees broken or fallen trees eliminated in the opening of roads and storage yards, skid trails, split or hollow logs and buttresses in according to reduced impact exploration in the areas. The residues list found in each area of study for each 1m ³ of logs extracted shown to be greater than the list determined by IBAMA that is 1:1m³, thus indicating that this index is not fixed, and should therefore be raised for each case. The total average volume of residues found by generating source of all the areas studied is 59.01 m³ / ha or 125.91 st / ha. Using the index of residue list and logs obtained in this study, allows the company to quantify with security the amount of residues from forestry exploration with the purpose to produce charcoal in each forest management area.