Estrutura fitossociológica, estoques de volume, biomassa, carbono e dióxido de carbono em Floresta Estacional Semidecidual

the objective of this work was to analyse the stock and volume growth, biomass, carbon and carbon dioxide in two areas of semideciduos submontane seasonal forest in intermediate and intermediate-advanced successional stages of the secondary vegetation. it was used data from surveys of the permanent plots measured in 2002 and 2007. to determine the basic density of the wood and bark of the trees, the species with the greatest percentage in volume with at least five (5) individuals were selected. in the areas at intermediate succession stage, growths in volume, biomass, carbon and carbon dioxide of the tree strata were 1.49 m3.ha-1.year-1; 0.27 tonb.ha-1.year-1, 0.13 ton c.ha-1.year-1 , and 0.50 ton co2.ha-1.year-1, respectively. the area at intermediate-advanced succession stage showed growths of 3.78 m3.ha-1.year-1; 1.54 tonb.ha-1.year-1, 0.77 ton c.ha-1.year-1, and 2.82 ton co2.ha-1.year-1, which show a relative increase of carbon dioxide stocks rate of 0.37% in the intermediate succession stage and of 1.05% in the intermediate-advanced stage. the populations with greater importance values, stocks and growths in the intermediate stage area were of mabea fistulifera, apuleia leiocarpa, pouteria torta, brosimum guianense and pseudopiptadenia contorta, and in the intermediate-advanced area they were of pseudopiptadenia contorta, mabea fistulifera, apuleia leiocarpa, brosimum guianense, tapirira guianense and cupania oblongifolia.