Effect of age and diameter class on the properties of wood from clonal Eucalyptus

CERNE

Arantes, Marina Donária Chaves³  Trugilho, Paulo Fernando²  Santana, Wilma Michele Santos¹  Calegario, Natalino² 

[1] Universidade Federal de Sergipe, São Cristovão$$;Universidade Federal de Lavras, Lavras$$;Universidade Federal do Espírito Santo, Alegre$$

关键词: Growth;    wood quality;    energy production.;   

DOI  :  10.1590/S0104-77602012000100001

来源: Universidade Federal de Lavras-UFLA

【 摘 要 】

The objective of this work was to evaluate the influence of age and diameter class on the physical, thermal and chemical characteristics of a clone of Eucalyptus grandis and Eucalyptus urophylla. The material originated from a reforestation site owned by GERDAU S.A. and included trees at age 34, 48, 61, 74 and 86 months. Two trees were selected per age in each diameter class, observing the proportion of each established plot. Analyses of physical characteristics included wood basic density, dry matter weight and carbon stock, and of chemical characteristics included holocellulose, total extractives content, total lignin and ash content, in addition to elemental and thermal analysis of the wood. Results led to the conclusion that most wood properties were influenced by age and diameter class. The species was found to have great potential for production of biomass and generation of heat energy, potentially convertible into mechanical energy and electricity.

【 授权许可】

Unknown