Ecuaciones alométricas para estimar biomasa y carbono en Quercus magnoliaefolia

at the el zapote ejido in the "sierra de huautla" biosphere reserve in the state of morelos, mexico, twelve quercus magnoliaefolia née trees were selected and their above-ground biomass determined. the proposed allometric model was expressed as: b = 0.0345 * dbh2.9334, where b is biomass (kg) and dbh is diameter at breast height (cm), with a coefficient of determination (r2= 0.98; po.001). in addition, above-ground biomass was estimated by a multiple linear regression based on basal area (ba), specific gravity of wood (sgw) and tree height (h). a high proportion of the biomass variation was explained by basal area alone. sgw and h did not significantly increase the accuracy of the models. the average percentage of carbon in q. magnoliaefolia trees was 47.14 with values of 46.29 % for the bole, 46.83 % for branches and 48.31 % for foliage. the average proportion of the components of the species studied was 62.5 % for the bole, 27.8 % for branches and 9.6 % for foliage.