Avalia??o n?o destrutiva da qualidade da madeira e do fuste de ?rvores de Peltophorum dubium (Spreng.) Taub em ?rea de restaura??o florestal

• Ano de defesa: 2016
• Autor(a) principal: Xavier, Carolina Nogueira
• Orientador(a): Carvalho, Alexandre Monteiro de
• Banca de defesa: Brancalion, Pedro Henrique Santin, Latorraca, Jo?o Vicente de Figueiredo
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal Rural do Rio de Janeiro
• Programa de Pós-Graduação: Programa de P?s-Gradua??o em Ci?ncias Ambientais e Florestais
• Departamento: Instituto de Florestas
• País: Brasil
• Palavras-chave em Português: Propriedades tecnol?gicas da madeira; caracter?sticas silviculturais; canaf?stula
• Palavras-chave em Inglês: wood technological properties; silvicultural characteristics
• Área do conhecimento CNPq: Ci?ncias Agr?rias
• Link de acesso: https://tede.ufrrj.br/jspui/handle/jspui/1362

This researh aimed to evaluate the quality of the wood of Peltophorum dubium (canaf?stula), obtained in forest restoration areas using non-destructive methods. The 18 individuals of canafistula studied are located in three different locations in the farm Santana do Monte Alegre, Descalvado/SP and were evaluated at 14 years of age. The following non-destructive methods for evaluating the quality of the wood in trees alive were used: densitometry X-ray - which analyzed the radial variation of wood density in micron levels; resistograph - for the assessment of the density of the tree and plant still in the field; and extensometer, used to verify the longitudinal residual strain (LRS). For the silvicultural analysis of the species was measured the CBH (circumference at breast height) and calculated the annual periodic increment in diameter. For qualitative analysis of the trunk, were observed and recorded the following characteristics: presence of fork, hollow timber and tortuosity of the trunk. It was also performed chemical analysis of soil in three different locations. It was found that the radial variation in density has increased in canaf?stula on pith to bark, showing the moderately high density of canaf?stula. The trees hasn?t the presence of internal hollow. The results of longitudinal residual strain showed that the species approached values found in Eucalyptus clones and showed significant and positive correlations with the DBH and the average annual diameter increment. The canasfistula trees showed good quality of the stem in 77,8% of subjects and regular in 22,2% of them, with capacity to produce straight stems with few bifurcations. In the three locations there was a statistical difference in relation to DBH and annual periodic increment in diameter, a fact related to the data of chemical analysis of soil. The site number 3 showed the largest DBH and increment in diameter, it has higher levels of calcium and magnesium, elements that are limiting to the growth of canaf?stula. A non-destructive methodology proved to be a fast tool field use and low cost, compared to traditional destructive methods. Therefore, the timber of canafistula among the studied technological properties, showed good quality for use in the lumber industry also presenting silvicultural characteristics which favor the use of the species for the timber, such as the development of upright stems and few forked, results that contribute to higher yields in the processing in lumber. Considering together all the features and properties studied, the species showed a great potential for the production and insertion in the timber sector