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Wood density and chemical composition variation of Eucalyptus urophylla clone in different environments

2024; De Gruyter; Volume: 78; Issue: 10 Linguagem: Inglês

10.1515/hf-2024-0022

1437-434X

Vaniele Bento dos Santos, Maria Fernanda Vieira Rocha, João Filipi Rodrigues Guimarães, Leonardo S. S. Oliveira, Maria Naruna Félix de Almeida, Nauan Ribeiro Marques Cirilo, Thayanne Caroline Castor Neto, Ana Márcia Macedo Ladeira Carvalho, Graziela Baptista Vidaurre,

Tree Root and Stability Studies

Abstract Variability in Eucalyptus wood density and chemical properties is crucial to understanding important factors for the forest-based industry, such as sampling methods and wood suitability as raw material. This study aimed to evaluate the basic density and chemical composition of the radial positions of young wood from the Eucalyptus urophylla clone grown under different precipitation levels. Trees from E. urophylla clonal plantations were collected in Inhambupe, Jandaíra and Itanagra, Bahia State, Brazil. Trees’ basic density and chemical composition (total extractive, lignin, hemicelluloses and α -cellulose) were determined based on the basal log of each tree, at four radial positions (1, 2, 3 and 4). It was found that the basic density and α -cellulose of wood are influenced by the cambial age and the site rainfall. There was greater increase in sections close to the bark (positions 1 and 4) and in more humid environments (sites Itanagra and Jandaríra). This finding highlights the association between wood basic density and chemical composition, mainly in the holocellulose content.