Abstract
ABSTRACT There is just little information about the technological aspects of the wood of Brazilian native tree species, which limits their suitable use. The objective of this study was to evaluate the resistograph amplitudes of the wood from six native tree species in different wood density classes, and correlate them with their wood densities to demonstrate the efficiency of this nondestructive technique. The results of the resistograph analysis divided the species into three classes. Analyses of basic and bulk densities of their wood showed statistically significant differences among the evaluated samples that divided them into four classes. The comparison of resistograph method and observed densities showed only a slight difference among the density classes. Therefore, it was found in this study that resistograph analysis may be used for explaining wood properties as well as achieving satisfactory correlations with their actual values, especially the physical properties of species with high wood density.
Highlights
A significant challenge facing modern societies is the need to become sustainable, in other words, regarding the needs and rational use of natural resources
To achieve the rational use of natural resources by society, in particular forestry resources, it is necessary to invest in science and technology for discovering new marketable species, as well as strategies for their sustainable exploitation
The first step in this process is to determine the technological behavior of the wood of different tree species, which can help one to plan their potential uses
Summary
A significant challenge facing modern societies is the need to become sustainable, in other words, regarding the needs and rational use of natural resources. To achieve the rational use of natural resources by society, in particular forestry resources, it is necessary to invest in science and technology for discovering new marketable species, as well as strategies for their sustainable exploitation. There is little information on the link between the scientific data and technological properties of the wood from Brazilian native tree species. Among these properties, the physical ones play a important role because they determine the quality of the wood and its utilization in forestry activities
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