DIRETRIZES PARA DESBASTE DE Pinus taeda L. EM FUNÇÃO DA ALTURA DOMINANTE.

Weber, Veridiana Padoin; Guimarães Finger, César Augusto; Fleig, Frederico Dimas; De Souzat, Carlos Alberto Martinelli; Munareto, Felipe Fortuna; Melo da Silva, Lorenzo Teixeira de

For maximum growth and yield of forest quality, scientific studies are needed on management techniques that will result in a higher economic return. A technique widely used in the production forest is adjusted coefficient of determination (R2 adj), coefficient of variation (CV), F value and calculated value of chisquare (X2) and analysis of waste. The equation selected was number 5, however, we observe that equations 5 and 6 are very similar for all the selection criteria used. Comparative analysis of regression equations developed independently for the three sampling regions showed significant differences between them. As there was no interaction between the variable "place" and the 'hdom' variable, a regression was calculated for Site 2 and one for Places 1 and 3 because these regressions differed significantly only on the intercept, with parallelism. The residue analysis showed that the equations developed for each site showed no tendency to overor underestimation, therefore, the use of dominant height as the independent variable is efficient to describe the guidelines for thinning in Pinus taeda L.studied.

PLANT thinning; LOBLOLLY pine; FOREST productivity; REGRESSION analysis; PLANT spacing

Ciência Florestal (01039954), 2013, Vol 23, Issue 1, p193

0103-9954

Academic Journal

10.5902/198050988453