Crescimento de espécies nativas da Amazônia submetidas ao plantio no estado de Roraima

• Published in: Ciência florestal 2008-01, Vol.18 (2), p.151-158
• Main Authors: Helio Tonini, Moisés Mourão Cordeiro de Oliveira Junior, Dalton Schwengber
• Format: Article
• Language: Portuguese
• ISSN: 0103-9954; 1980-5098

An important forest research challenge in the Amazonian is finding forms of reforesting degraded areas with the use of a larger number of native species and identify tropical species commercially attractive adapted to clear-cut areas. This work had as objectives to evaluate the initial growth in diameter and height of six native Amazonian species in a preliminary species trial. The data were obtained from measures of 72 trees 9 years after planting. The selected species for this study were cupiúba (Goupia glabra), cumaru (Dipterix odorata), andiroba (Carapa guianensis), brazil nut (Bertholletia excelsa), pará-pará (Jacaranda copaia) and tatajuba (Bagassa guianensis). The cumulative growth curves for diameter and height was obtained by the Chapman Richards function. In spite of the low age of the stands, it was obtained good fit to the function for the studied species. Pará-pará (Jacaranda copaia), presented best diameter and height growth in all the ages. The diameter mean annual increment analysis showed that, except for the cupiúba (Goupia glabra), can be expected increments larger than 2 cm, by appropiate spacings and thinning.