Biomass Equations for Six Commercial Tree Species in Quebec

Abstract

Six commercial species were sampled throughout Quebec and prediction equations of ovendry masses for the total above-ground tree and its components white cedar (Thuya occidentalis L.) and eastern hemlock(Tsuga canadensis (L.) Carr.). The deciduous species are: red maple (Acer rubrum L.), white ash (Fraxinus americana L.), black ash (Fraxinus nigra Marsh.), and beech (Fagus grandifolia Ehrh.). The components expressed in ovendry masses are: the total tree, the stem, the merchantable stem, the wood and bark of the merchantable stem, and the crown. A nonlinear model is used with the diameter at breast height and the total height as predictors. Key words: Biomass, prediction equations, eastern white cedar, eastern hemlock, red maple white ash, black ash, beech.