Abstract

LOPES, Domingos  and  ARANHA, José. Carbon Evaluation for Different Parts of Pinus pinaster and Eucalyptus globulus. Silva Lus. [online]. 2006, vol.14, n.2, pp.149-154. ISSN 0870-6352.

Samples of branches, stem and leaves were collected in 31 sampling plots of Eucalyptus and 34 sampling plots of Pinus pinaster. Chemical analyses were done to determine the carbon content in each one of these components (the percentage of carbon per kilogram of dry biomass). The knowledge of this value is very important because carbon sequestration estimations are done using it. Many authors assume, in a simplistic way, that a kilogram of a dry biomass has 50% of carbon. Accordingly, one of the main goals of this study was to verify if in fact the previous assumption is correct and if there are no differences between values assigned to different components of the analysed tree. The obtained results allowed concluding that the previous simplification is abusive because the medium carbon content values vary, not only among the different components of the tree, but also among the analysed species.

Keywords : Carbon; Pinus; Eucalyptus.

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