CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/12359 |
Resumo: | http://dx.doi.org/10.5902/1980509812359The 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 verifywhether this effect could affect the proportion of the chemical components of wood. The average initialspacing 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; thegroups of uronic acids of the T1 was similar to all other treatments, but the levels of T2 and T4 differedbetween them. The extractives content of T1was similar to the T2 and T3 and lower than that of theT4; thecarbohydrates of T1 were similar to that of T3 and higher than the others. It was concluded that thinningincreases the quality of the wood to be used as energy purposes, such as charcoal production, but it did notincrease productivity for wood pulp and paper production. |
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CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNINGComposição química da madeira de eucalipto com diferentes níveis de desbasteEucalyptusgrindinglignin.Eucalyptusdesbasteligninahttp://dx.doi.org/10.5902/1980509812359The 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 verifywhether this effect could affect the proportion of the chemical components of wood. The average initialspacing 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; thegroups of uronic acids of the T1 was similar to all other treatments, but the levels of T2 and T4 differedbetween them. The extractives content of T1was similar to the T2 and T3 and lower than that of theT4; thecarbohydrates of T1 were similar to that of T3 and higher than the others. It was concluded that thinningincreases the quality of the wood to be used as energy purposes, such as charcoal production, but it did notincrease productivity for wood pulp and paper production.http://dx.doi.org/10.5902/1980509812359O objetivo deste estudo foi avaliar diferentes regimes de desbaste em plantios silviculturais de clones de eucalipto (Eucalyptus urophylla x Eucalyptus grandis) para produção de madeira visando à obtenção de celulose e carvão com a finalidade de verificar se este efeito poderia afetar quantitativamente a proporção dos componentes químicos da madeira. O espaçamento inicial médio entre plantas foi de 3 x 3 m e os tratamentos foram: T1= testemunha, T2, T3 e T4 com desbaste de 20%, 35% e 50% da área basal presente, respectivamente. Os resultados foram submetidos ao teste de Tukey com 5% de probabilidade. De acordo com os resultados, constatou-se que o teor de lignina resultante do tratamento T4 foi maior que o dos demais; o de grupos urônicos do T1 foi semelhante ao dos demais tratamentos, mas os teores dos T2 e T4 diferiram entre si. O teor de extrativos do T1 foi semelhante ao dos T2 e T3 e menor que o do T4; o de carboidratos do T1 foi semelhante ao do T3 e superior aos demais. Concluiu-se que o desbaste aumenta a qualidade da madeira para ser utilizada como fins energéticos, como produção de carvão, mas não aumenta a produtividade de madeira destinada à confecção de celulose e papel. Universidade Federal de Santa Maria2013-12-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/1235910.5902/1980509812359Ciência Florestal; Vol. 23 No. 4 (2013); 755-760Ciência Florestal; v. 23 n. 4 (2013); 755-7601980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/12359/7819Zanuncio, Antônio José VinhaColodette, Jorge LuizGomes, Fernando Jose BorgesCarneiro, Angélica de Cassia OliveiraVital, Benedito Rochainfo:eu-repo/semantics/openAccess2017-04-17T12:44:51Zoai:ojs.pkp.sfu.ca:article/12359Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-04-17T12:44:51Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING Composição química da madeira de eucalipto com diferentes níveis de desbaste |
title |
CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING |
spellingShingle |
CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING Zanuncio, Antônio José Vinha Eucalyptus grinding lignin. Eucalyptus desbaste lignina |
title_short |
CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING |
title_full |
CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING |
title_fullStr |
CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING |
title_full_unstemmed |
CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING |
title_sort |
CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING |
author |
Zanuncio, Antônio José Vinha |
author_facet |
Zanuncio, Antônio José Vinha Colodette, Jorge Luiz Gomes, Fernando Jose Borges Carneiro, Angélica de Cassia Oliveira Vital, Benedito Rocha |
author_role |
author |
author2 |
Colodette, Jorge Luiz Gomes, Fernando Jose Borges Carneiro, Angélica de Cassia Oliveira Vital, Benedito Rocha |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Zanuncio, Antônio José Vinha Colodette, Jorge Luiz Gomes, Fernando Jose Borges Carneiro, Angélica de Cassia Oliveira Vital, Benedito Rocha |
dc.subject.por.fl_str_mv |
Eucalyptus grinding lignin. Eucalyptus desbaste lignina |
topic |
Eucalyptus grinding lignin. Eucalyptus desbaste lignina |
description |
http://dx.doi.org/10.5902/1980509812359The 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 verifywhether this effect could affect the proportion of the chemical components of wood. The average initialspacing 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; thegroups of uronic acids of the T1 was similar to all other treatments, but the levels of T2 and T4 differedbetween them. The extractives content of T1was similar to the T2 and T3 and lower than that of theT4; thecarbohydrates of T1 were similar to that of T3 and higher than the others. It was concluded that thinningincreases the quality of the wood to be used as energy purposes, such as charcoal production, but it did notincrease productivity for wood pulp and paper production. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/12359 10.5902/1980509812359 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/12359 |
identifier_str_mv |
10.5902/1980509812359 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/12359/7819 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 23 No. 4 (2013); 755-760 Ciência Florestal; v. 23 n. 4 (2013); 755-760 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
_version_ |
1799944129118994432 |