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

IF 2.2 3区农林科学 Q2 FORESTRY

Holzforschung Pub Date : 2024-09-02 DOI:10.1515/hf-2024-0022

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

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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.

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不同环境下桉树克隆的木材密度和化学成分变化

桉树木材密度和化学特性的变异性对于了解以森林为基础的工业的重要因素（如取样方法和木材作为原材料的适宜性）至关重要。本研究旨在评估在不同降水量下生长的桉树克隆幼木径向位置的基本密度和化学成分。研究人员在巴西巴伊亚州的 Inhambupe、Jandaíra 和 Itanagra 采集了桉树克隆种植园的树木。根据每棵树在四个径向位置（1、2、3 和 4）的基对数，测定了树木的基本密度和化学成分（总萃取物、木质素、半纤维素和 α-纤维素）。结果发现，木材的基本密度和 α-纤维素受骨干年龄和现场降雨量的影响。在靠近树皮的部分（1 号和 4 号位置）以及湿度较高的环境（伊塔纳格拉和詹达利拉地点）中，α-纤维素增加较多。这一发现凸显了木材基本密度与化学成分（主要是全纤维素含量）之间的联系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Holzforschung 工程技术-材料科学：纸与木材

CiteScore

4.60

自引率

4.20%

发文量

审稿时长

3.3 months

期刊介绍： Holzforschung is an international scholarly journal that publishes cutting-edge research on the biology, chemistry, physics and technology of wood and wood components. High quality papers about biotechnology and tree genetics are also welcome. Rated year after year as one of the top scientific journals in the category of Pulp and Paper (ISI Journal Citation Index), Holzforschung represents innovative, high quality basic and applied research. The German title reflects the journal''s origins in a long scientific tradition, but all articles are published in English to stimulate and promote cooperation between experts all over the world. Ahead-of-print publishing ensures fastest possible knowledge transfer.