Longitudinal Growth Stress In Eucalyptus Dunnii Maiden
The objective of this study was to evaluate the longitudinal growth stress in standing trees 8, 13, 15 and 19 years old Eucalyptus dunnii Maiden. The material was obtained from Santa Catarina State, Brazil. Longitudinal growth stress was indirectly measured by the CIRAD-Foret method, in the standing tree, and estimated through the modulus of elasticity in te-nsion parallel to the grain. The results indicate that the longitudinal residual strain (LRS) and the estimate of the longitudinal growth stress showed a tendency to increase with the age of the material. Variation in LRS and in the estimate of the longitudinal growth stress was similar for all ages. LRS changed from 0.107mm (8 years-old) to 0.123mm (19 years-old), while the estimate of the longitudinal growth stress changed from 260kgf·cm<-2> (8 years-old) to 392kgf·cm<-2> (15 years-old). LRS presented positive and significant correlation with the estimate of the longitudinal growth stress. The stronger correlations were obtained with trees at 13, 15 and 19 years of age.
Paulo Fernando Trugilho Jose Tarcisio Lima Sebastiao Carlos da Sila Rosado
departamento de Ciencias Florestais Universidade Federal de Lavras 37200-000 Lavras MG Brazil
国际会议
The International Conference on Plantation Eucalyptus(桉树国际会议)
广东湛江
英文
68-73
2005-12-01（万方平台首次上网日期，不代表论文的发表时间）