Tensão de Crescimento no Lenho de Eucalyptus benthamii e sua Relação com Características Dendrométricas em Diferentes Espaçamentos

The aim of this study was to evaluate the influence of planting eucalyptus wood with respect to its dendrometric characteristics and longitudinal residual strain (LRS) of the wood, and the relationships between these variables. The material used was Eucalyptus benthamii at five years of age in 2×3, 3×3, 3×4 and 4×4 m spacing. The projection of the crown was determined by measuring eight spokes with variable angles, and maps of crown distribution and projection were prepared. Measurements of LRS were taken 1.30 m above the ground in the four cardinal directions in living trees, with the aid of strain meters (Growth Strain Gauge) by the CIRAD-Foret method. There was great variability in the results of the growth variables and levels of growth stresses for different spacing. The lowest average values of LRS were observed in the south direction, and increased spacing did not significantly alter the LRS values. Correlations between LRS and growth variables were only found with maximum LRS values ​for each tree.

[1]  Cleuber Delano José Lisbôa.  Estudo das tensões de crescimento em toras de Eucalyptus grandis Hill. ex Maiden , 2013 .

[2]  Lucas Recla Lombardi,et al.  Propriedades da Madeira de Reação / Propriedades da Madeira de Reação , 2013 .

[3]  D. J. Reinert,et al.  Parâmetros da copa e a sua relação com o diâmetro e altura das árvores de eucalipto em diferentes idades , 2012 .

[4]  D. Reinert,et al.  Crown parameters and their relationship with diameter and height of Eucalyptus trees at different ages. , 2012 .

[5]  Clovis Roberto Haselein,et al.  DETERMINAÇÃO DAS DEFORMAÇÕES RESIDUAIS LONGITUDINAIS DECORRENTES DAS TENSÕES DE CRESCIMENTO EM Eucalyptus spp. , 2012 .

[6]  G. Becker,et al.  Growth Strain in Eucalyptus nitens at Different Stages of Development , 2009 .

[7]  Paulo Fernando Trugilho,et al.  Seleção de clones de Eucalyptus para as propriedades físicas da madeira avaliadas em árvores no campo , 2008 .

[8]  P. Spathelf,et al.  MANAGEMENT OF INDIVIDUAL TREE DIAMETER GROWTH AND IMPLICATIONS FOR PRUNING FOR BRAZILIAN Eucalyptus grandis Hill ex Maiden , 2006 .

[9]  L. Nutto,et al.  Modelos de producción de madera sólida en plantaciones de Eucalyptus globulus de Galicia , 2006 .

[10]  Paulo Fernando Trugilho,et al.  DEFORMAÇÃO RESIDUAL LONGITUDINAL EM DIFERENTES ESPAÇAMENTOS E IDADES EM CLONE DE HÍBRIDO DE Eucalyptus , 2005 .

[11]  Paulo Fernando Trugilho,et al.  DEFORMAÇÕES RESIDUAIS LONGITUDINAIS DECORRENTES DE TENSÕES DE CRESCIMENTO EM EUCALIPTOS E SUAS ASSOCIAÇÕES COM OUTRAS PROPRIEDADES 1 , 2004 .

[12]  R. R. Archer,et al.  On the origin of growth stresses in trees , 2004, Wood Science and Technology.

[13]  Jun-Li Yang,et al.  Growth stress, its measurement and effects , 2001 .

[14]  H. Spiecker,et al.  Production of valuable wood: a software aided decision tool for managing oak stands (Quercus petraea Liebl. and Q. robur L.) in Europe. , 2000 .

[15]  M. Battaglia,et al.  Allometric relationships for Eucalyptus nitens (Deane and Maiden) Maiden plantations , 1999, Trees.

[16]  M. R. Díez,et al.  Estudio de las tensiones de crecimiento del Eucalyptus globulus Labill en Galicia y su relación con las características de la estación y morfológicas del propio árbol , 2008 .

[17]  H. Pretzsch.  Perspektiven einer modellorientierten Waldwachstumsforschung , 1995, Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch.

[18]  H. Kubler.  Silvicultural control of mechanical stresses in trees , 1988 .

[19]  Dr. Robert R. Archer,et al.  Growth Stresses and Strains in Trees , 1987, Springer Series in Wood Science.

[20]  J. Ferrand.  Growth stresses and silviculture of eucalypts , 1983 .