COMPOSIÇÃO QUÍMICA DA MADEIRA DE EUCALIPTO COM DIFERENTES NÍVEIS DE DESBASTE

The objective of this study was to evaluate different thinning regimes in forest plantations of eucalypt (Eucalyptus grandis x Eucalyptus urophylla) clones to produce timber for cellulose and charcoal to verify whether this effect could affect the proportion of the chemical components of wood. The a...

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Main Authors: Antônio José Vinha Zanuncio, Jorge Luiz Colodette, Fernando Jose Borges Gomes, Angélica de Cassia Oliveira Carneiro, Benedito Rocha Vital
Format: Article
Language:Portuguese
Published: Universidade Federal de Santa Maria 2013-01-01
Series:Ciência Florestal
Online Access:http://www.redalyc.org/articulo.oa?id=53429235021
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author Antônio José Vinha Zanuncio
Jorge Luiz Colodette
Fernando Jose Borges Gomes
Angélica de Cassia Oliveira Carneiro
Benedito Rocha Vital
author_facet Antônio José Vinha Zanuncio
Jorge Luiz Colodette
Fernando Jose Borges Gomes
Angélica de Cassia Oliveira Carneiro
Benedito Rocha Vital
author_sort Antônio José Vinha Zanuncio
collection DOAJ
description The objective of this study was to evaluate different thinning regimes in forest plantations of eucalypt (Eucalyptus grandis x Eucalyptus urophylla) clones to produce timber for cellulose and charcoal to verify whether this effect could affect the proportion of the chemical components of wood. The average initial spacing between plants was 3x3 m and the treatments were: T1= control, T2, T3and T4 with thinning 20%, 35% and 50% of the basal area, respectively. The results were analyzed by Tukey test at 5% probability. According to the results found the lignin content from treatment T4 was higher than that of the others; the groups of uronic acids of the T1 was similar to all other treatments, but the levels of T2 and T4 differed between them. The extractives content of T1was similar to the T2 and T3 and lower than that of theT4; the carbohydrates of T1 were similar to that of T3 and higher than the others. It was concluded that thinning increases the quality of the wood to be used as energy purposes, such as charcoal production, but it did not increase productivity for wood pulp and paper production.
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spelling doaj.art-9c4a20af2ad9476988b2ce0b7d75398c2022-12-22T02:27:54ZporUniversidade Federal de Santa MariaCiência Florestal0103-99541980-50982013-01-01234755760COMPOSIÇÃO QUÍMICA DA MADEIRA DE EUCALIPTO COM DIFERENTES NÍVEIS DE DESBASTEAntônio José Vinha ZanuncioJorge Luiz ColodetteFernando Jose Borges GomesAngélica de Cassia Oliveira CarneiroBenedito Rocha VitalThe objective of this study was to evaluate different thinning regimes in forest plantations of eucalypt (Eucalyptus grandis x Eucalyptus urophylla) clones to produce timber for cellulose and charcoal to verify whether this effect could affect the proportion of the chemical components of wood. The average initial spacing between plants was 3x3 m and the treatments were: T1= control, T2, T3and T4 with thinning 20%, 35% and 50% of the basal area, respectively. The results were analyzed by Tukey test at 5% probability. According to the results found the lignin content from treatment T4 was higher than that of the others; the groups of uronic acids of the T1 was similar to all other treatments, but the levels of T2 and T4 differed between them. The extractives content of T1was similar to the T2 and T3 and lower than that of theT4; the carbohydrates of T1 were similar to that of T3 and higher than the others. It was concluded that thinning increases the quality of the wood to be used as energy purposes, such as charcoal production, but it did not increase productivity for wood pulp and paper production.http://www.redalyc.org/articulo.oa?id=53429235021
spellingShingle Antônio José Vinha Zanuncio
Jorge Luiz Colodette
Fernando Jose Borges Gomes
Angélica de Cassia Oliveira Carneiro
Benedito Rocha Vital
COMPOSIÇÃO QUÍMICA DA MADEIRA DE EUCALIPTO COM DIFERENTES NÍVEIS DE DESBASTE
Ciência Florestal
title COMPOSIÇÃO QUÍMICA DA MADEIRA DE EUCALIPTO COM DIFERENTES NÍVEIS DE DESBASTE
title_full COMPOSIÇÃO QUÍMICA DA MADEIRA DE EUCALIPTO COM DIFERENTES NÍVEIS DE DESBASTE
title_fullStr COMPOSIÇÃO QUÍMICA DA MADEIRA DE EUCALIPTO COM DIFERENTES NÍVEIS DE DESBASTE
title_full_unstemmed COMPOSIÇÃO QUÍMICA DA MADEIRA DE EUCALIPTO COM DIFERENTES NÍVEIS DE DESBASTE
title_short COMPOSIÇÃO QUÍMICA DA MADEIRA DE EUCALIPTO COM DIFERENTES NÍVEIS DE DESBASTE
title_sort composicao quimica da madeira de eucalipto com diferentes niveis de desbaste
url http://www.redalyc.org/articulo.oa?id=53429235021
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