Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural uses

Detalhes bibliográficos
Autor(a) principal: Vivian, Magnos Alan
Data de Publicação: 2022
Outros Autores: Dobner Júnior, Mario, Modes, Karina Soares, Belini, Ugo Leandro, Vaz, Douglas Rufino
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência Florestal (Online)
Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/42430
Resumo: Pinus spp. plantations are the basis of an important economic activity on the highland regions of southern Brazil, where they are cultivated under productions cycles of approximately 15 years. The objective of the study was to evaluate the physical-mechanical and anatomical characteristics of Pinus taeda L. timber, obtained from stands older than 30 years, compared with that currently available in the market, aged close to 15 years, aiming at analyzing its potential to produce high quality wood for solid and structural end-uses. Furthermore, the productivity and the economic aspects of stands older than 30 years were also evaluated. To do so, Pinus taeda trees from two stands aging 15 and 43 years were analyzed and, thereafter, only wood produced from the age of 30 years onwards was sampled, in order to characterize the juvenile and mature wood, respectively. It was concluded that the mature wood, obtained from >30-year-old trees has higher density, bigger tracheid dimension, shrinkage volumetric coefficient (but with a lower anisotropy coefficient), modulus of elasticity and modulus of rupture to static bending, in comparison with the juvenile one, obtained from 15-year-old trees. Taking into account the ability upon the static bending, the timber formed after the age of 30 years can be indicated to uses which explore its better mechanical performance, compatible with the one of Araucaria angustifolia ages between 25 and 58 years. The production cycles with more than 30 years are profitable and could be an interesting management option aiming at specific markets in which high quality wood for solid and structural end-uses may be even better remunerated.
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spelling Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural usesCiclos de produção de Pinus taeda L. com mais de 30 anos: uma alternativa para obtenção de madeira para usos sólidos e estruturaisPropriedades físico-mecânicasAnatomia da madeiraManejo florestalManejo para multiprodutosPhysical and mechanical propertiesWood anatomyForest managementMultiple-use managementPinus spp. plantations are the basis of an important economic activity on the highland regions of southern Brazil, where they are cultivated under productions cycles of approximately 15 years. The objective of the study was to evaluate the physical-mechanical and anatomical characteristics of Pinus taeda L. timber, obtained from stands older than 30 years, compared with that currently available in the market, aged close to 15 years, aiming at analyzing its potential to produce high quality wood for solid and structural end-uses. Furthermore, the productivity and the economic aspects of stands older than 30 years were also evaluated. To do so, Pinus taeda trees from two stands aging 15 and 43 years were analyzed and, thereafter, only wood produced from the age of 30 years onwards was sampled, in order to characterize the juvenile and mature wood, respectively. It was concluded that the mature wood, obtained from >30-year-old trees has higher density, bigger tracheid dimension, shrinkage volumetric coefficient (but with a lower anisotropy coefficient), modulus of elasticity and modulus of rupture to static bending, in comparison with the juvenile one, obtained from 15-year-old trees. Taking into account the ability upon the static bending, the timber formed after the age of 30 years can be indicated to uses which explore its better mechanical performance, compatible with the one of Araucaria angustifolia ages between 25 and 58 years. The production cycles with more than 30 years are profitable and could be an interesting management option aiming at specific markets in which high quality wood for solid and structural end-uses may be even better remunerated.Plantios de Pinus spp. são a base de uma importante atividade econômica na região do planalto sul do Brasil, onde são cultivados em ciclos de produção com cerca de 15 anos de duração. O objetivo do estudo foi avaliar as características físico-mecânicas e anatômicas da madeira de Pinus taeda L. obtida em povoamentos com idades superiores a 30 anos, em comparação com aquela atualmente disponível no mercado, com idade próxima a 15 anos, visando avaliar seu potencial para produção de madeira de alta qualidade para usos sólidos e estruturais. Além disso, avaliaram-se também aspectos produtivos e econômicos de plantios de Pinus taeda com mais de 30 anos de idade. Para isso, foram utilizadas árvores de Pinus taeda provenientes de dois plantios, com idades de 15 e 43 anos e, deste último, amostrada apenas a madeira produzida a partir dos 30 anos, de forma a caracterizar a madeira juvenil e adulta, respectivamente. Concluiu-se que a madeira adulta, obtida de árvores com >30 anos, apresenta valores superiores de densidade, dimensões de traqueídes, coeficiente de retratibilidade volumétrica (porém com menor coeficiente de anisotropia), módulo de elasticidade e módulo de ruptura à flexão estática, em comparação à madeira juvenil, obtida em árvores com 15 anos. Levando-se em consideração a habilidade frente ao ensaio de flexão estática, a madeira com >30 anos pode ser indicada para usos que explorem seu maior desempenho mecânico e estrutural, compatível com Araucaria angustifolia de idades entre 25 e 58 anos. Ciclos de produção com duração superior a 30 anos são viáveis economicamente e podem ser uma opção de manejo interessante, visando acessar mercados específicos nos quais a qualidade da madeira para usos sólidos e estruturais poderia ser ainda mais bem remunerada.Universidade Federal de Santa Maria2022-06-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdftext/htmltext/xmlhttps://periodicos.ufsm.br/cienciaflorestal/article/view/4243010.5902/1980509842430Ciência Florestal; Vol. 32 No. 2 (2022); 573-596Ciência Florestal; v. 32 n. 2 (2022); 573-5961980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/42430/47628https://periodicos.ufsm.br/cienciaflorestal/article/view/42430/48227https://periodicos.ufsm.br/cienciaflorestal/article/view/42430/50732Copyright (c) 2022 Ciência Florestalhttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessVivian, Magnos AlanDobner Júnior, MarioModes, Karina SoaresBelini, Ugo LeandroVaz, Douglas Rufino2022-12-15T01:52:29Zoai:ojs.pkp.sfu.ca:article/42430Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2022-12-15T01:52:29Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural uses
Ciclos de produção de Pinus taeda L. com mais de 30 anos: uma alternativa para obtenção de madeira para usos sólidos e estruturais
title Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural uses
spellingShingle Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural uses
Vivian, Magnos Alan
Propriedades físico-mecânicas
Anatomia da madeira
Manejo florestal
Manejo para multiprodutos
Physical and mechanical properties
Wood anatomy
Forest management
Multiple-use management
title_short Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural uses
title_full Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural uses
title_fullStr Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural uses
title_full_unstemmed Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural uses
title_sort Production cycles of Pinus taeda L. older more than 30 years: an alternative for obtaining wood for solid and structural uses
author Vivian, Magnos Alan
author_facet Vivian, Magnos Alan
Dobner Júnior, Mario
Modes, Karina Soares
Belini, Ugo Leandro
Vaz, Douglas Rufino
author_role author
author2 Dobner Júnior, Mario
Modes, Karina Soares
Belini, Ugo Leandro
Vaz, Douglas Rufino
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Vivian, Magnos Alan
Dobner Júnior, Mario
Modes, Karina Soares
Belini, Ugo Leandro
Vaz, Douglas Rufino
dc.subject.por.fl_str_mv Propriedades físico-mecânicas
Anatomia da madeira
Manejo florestal
Manejo para multiprodutos
Physical and mechanical properties
Wood anatomy
Forest management
Multiple-use management
topic Propriedades físico-mecânicas
Anatomia da madeira
Manejo florestal
Manejo para multiprodutos
Physical and mechanical properties
Wood anatomy
Forest management
Multiple-use management
description Pinus spp. plantations are the basis of an important economic activity on the highland regions of southern Brazil, where they are cultivated under productions cycles of approximately 15 years. The objective of the study was to evaluate the physical-mechanical and anatomical characteristics of Pinus taeda L. timber, obtained from stands older than 30 years, compared with that currently available in the market, aged close to 15 years, aiming at analyzing its potential to produce high quality wood for solid and structural end-uses. Furthermore, the productivity and the economic aspects of stands older than 30 years were also evaluated. To do so, Pinus taeda trees from two stands aging 15 and 43 years were analyzed and, thereafter, only wood produced from the age of 30 years onwards was sampled, in order to characterize the juvenile and mature wood, respectively. It was concluded that the mature wood, obtained from >30-year-old trees has higher density, bigger tracheid dimension, shrinkage volumetric coefficient (but with a lower anisotropy coefficient), modulus of elasticity and modulus of rupture to static bending, in comparison with the juvenile one, obtained from 15-year-old trees. Taking into account the ability upon the static bending, the timber formed after the age of 30 years can be indicated to uses which explore its better mechanical performance, compatible with the one of Araucaria angustifolia ages between 25 and 58 years. The production cycles with more than 30 years are profitable and could be an interesting management option aiming at specific markets in which high quality wood for solid and structural end-uses may be even better remunerated.
publishDate 2022
dc.date.none.fl_str_mv 2022-06-29
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/42430
10.5902/1980509842430
url https://periodicos.ufsm.br/cienciaflorestal/article/view/42430
identifier_str_mv 10.5902/1980509842430
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/42430/47628
https://periodicos.ufsm.br/cienciaflorestal/article/view/42430/48227
https://periodicos.ufsm.br/cienciaflorestal/article/view/42430/50732
dc.rights.driver.fl_str_mv Copyright (c) 2022 Ciência Florestal
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 Ciência Florestal
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
text/html
text/xml
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. 32 No. 2 (2022); 573-596
Ciência Florestal; v. 32 n. 2 (2022); 573-596
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
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