Quantificação da biomassa de um povoamento de Acacia mearnsii De Wild. NA região sul do Brasil

Abstract

The present study was carried out in stand of Black wattle 8 years old, in the southeastern mountain range, in Minas do Leão - RS County. The objective of this work was to quantify the total biomass of the stand and its distribution in each component of the tree biomass. After evaluation of dendrometric characteristics, 21 trees were selected and cut for estimation of biomass in the components: leaves, live and dead branches, bark wood, stem wood and roots. To estimate the different components of the biomass, the coefficients of the equation ln y = b0 + b1 * ln d were determinated. At eight years old, a Black wattle can concentrate more than 60% of its biomass in the wood. The biomass below ground under these conditions can reach approximately 12% of total biomass.