Potencial energético de espécies florestais do sub-bosque em plantios comerciais de Castanha-do-Brasil - Estudo de caso: Agropecuária Aruanã S.A

Abstract

Energy potential of forest species of the understory in commercial plantations of Brazil-nut case study: Agropecuaria Aruanã S.A. –This study aims to characterize the species of the understory vegetation of a planting of Brazil nuts Bertholletia excelsa H & B owned by Agropecuaria Arowana S.A., located in the municipality of Itacoatiara-AM, for energy production. The wood intended for energy purposes should be based, inter alia, on the knowledge of its calorific value and in its potential for production of biomass is therefore required an analysis of its energy potential. In vegetation forest inventory was held which resulted in an average of 880.89 ind/ha, a wood volume of 96.86 m³/ha, basal area of 8.49 m²/ha and biomass of 21.03 ton/ha. The phytosociological parameters of vegetation were estimated by the EIVI (Expanded Importance value index) and subsequently selected nine species with the highest values of EIVI for characterization of energy, adjusting templates for wood, biomass volume and stacking factor. It is concluded that the species that have stood out in floristic composition were guava of anta (Bellucia dichotoma Cogn) and lacre (Vismia guianensis (Aubl.) Pers.), in which dominated the environment with almost 50% of the value of EIVI. Also had their basic density and characteristics of calorific power, favorable energy production. It is recommended to study the production system (phenology, seedling production, planting, spacing and cultural treatments) of these species, as are native, fast-growing, and adapted to the environment of the region