Estoque e crescimento em volume, biomassa, carbono e dióxido de carbono em Floresta Estacional Semidecidual
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2011-10-31
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Revista Árvore
Resumo
O objetivo deste trabalho foi estimar o estoque e o crescimento em volume (V), biomassa (B), carbono (C) e dióxido de carbono (CO2) em Floresta Estacional Semidecidual no Vale do Rio Doce, em Minas Gerais. Foram utilizados dados de inventários do estrato arbóreo (DAP > 5,0 cm), cujas parcelas permanentes foram medidas em 2002 e 2007, em estágios médio (Mata 1) e avançado (Mata 2) de regeneração da vegetação secundária. Com base no inventário de 2002, foram selecionadas espécies que apresentavam maiores percentuais em volume e no mínimo cinco indivíduos para determinar as densidades básicas da madeira e da casca. A média da densidade básica da madeira foi de 0,65 g.cm-3 e da casca, igual a 0,49 g.cm-3. Os estoques e os crescimentos em V, B, C e CO2 foram estimados nos dois estágios, Mata 1 e Mata 2. Pelo fato de as matas se encontrarem em estágios médio e avançado de regeneração, respectivamente, elas apresentavam estruturas, estoques e crescimentos distintos.
The objective of this work was to estimate the stock and the growth in volume (V), biomass (B), carbon (C) and carbon dioxide (CO2) in reserve areas of a Seasonal semideciduous forest in the Vale do Rio Doce, Minas Gerais State, Brazil. Data from the arboreous strata (DBH > 5.0 cm) survey were used, and the permanent plots were measured in 2002 and 2007, in two native areas in a medium stage (Mata 1) and medium/advanced stage (Mata2) of secondary regeneration. Based on data from the 2002 survey, species that showed the greatest percentages of volume and a minimum of five (5) individuals were selected to determine basic wood and bark densities of the trees. The average wood basic density was 0.65 g.cm-3 and bark basic density was 0.49 g.cm-3. The stocks and the growths in volume, biomass, carbon and carbon dioxide of the arboreous strata were estimated for Mata 1 and for Mata 2. Due to the fact that the forests are stage medium and advanced stages of regeneration respectively, they have different structures, stocks and growth.
The objective of this work was to estimate the stock and the growth in volume (V), biomass (B), carbon (C) and carbon dioxide (CO2) in reserve areas of a Seasonal semideciduous forest in the Vale do Rio Doce, Minas Gerais State, Brazil. Data from the arboreous strata (DBH > 5.0 cm) survey were used, and the permanent plots were measured in 2002 and 2007, in two native areas in a medium stage (Mata 1) and medium/advanced stage (Mata2) of secondary regeneration. Based on data from the 2002 survey, species that showed the greatest percentages of volume and a minimum of five (5) individuals were selected to determine basic wood and bark densities of the trees. The average wood basic density was 0.65 g.cm-3 and bark basic density was 0.49 g.cm-3. The stocks and the growths in volume, biomass, carbon and carbon dioxide of the arboreous strata were estimated for Mata 1 and for Mata 2. Due to the fact that the forests are stage medium and advanced stages of regeneration respectively, they have different structures, stocks and growth.
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Floresta atlântica, Estágio de sucessão e sequestro de carbono