LUMBER YIELD FOR THREE COMMERCIAL FOREST SPECIES OF THE AMAZON BIOMA IN JUÍNA/MT

Abstract

Abstract: The objective was determine and evaluate the yield of sawn wood of three tropical species of the Amazonian biome, Copiúba (Goupia Glabra), Jatobá (Hymenaea Courbaril) and Maria Preta (Diatenopteryx Sorbifolia Radlk). For each species, 22 logs of each species were selected, totaling 66 logs, which were measured to obtain volume of the logs and later unfolded in 3 band saws: tape, simple circular saw and circular saws. A simple statistical analysis was conducted with a means comparison test, based on analysis of variance. The means comparison test was based on the Scott-Knott method at 95% probability. The variable analyzed was the yield of sawn wood. The results of volumetric yield of sawn wood were Copiúba (64.05%), Jatobá (57.61%) and Maria Preta (67.12%). Maria Preta was the species that obtained better yield in sawn wood and less generation of by-products.

Keywords: Sawmill yield, Amazonian biome, means comparison test.