Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista de Ciências Agrárias (Belém. Online) |
Texto Completo: | https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1839 |
Resumo: | The wood density is one of the parameters that most affect its properties, which makes it knowledge essential for any use indication. However, due to the high variability of this aspect within the tree, its determination shall consider a sampling throughout the stem. Thus, this study aimed to evaluate the longitudinal and radial variations of Pinus taeda L. wood density for individuals with different ages. To that end, trees with 8, 14, 18 and 26 years old were cut, and discs with 10, 35, 55 and 75% were removed from the tree total height and another in the height corresponding to the chest height diameter– DBH, taken at a 1.30m. From these, samples were collected in three different positions in the pith-bark direction (next to pith, intermediate and next to bark) to determine the density. A significant density increase was observed for older trees samples. A density reduction from the basis to the top and an increase from the pith to the bark was observed. |
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Revista de Ciências Agrárias (Belém. Online) |
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Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages The wood density is one of the parameters that most affect its properties, which makes it knowledge essential for any use indication. However, due to the high variability of this aspect within the tree, its determination shall consider a sampling throughout the stem. Thus, this study aimed to evaluate the longitudinal and radial variations of Pinus taeda L. wood density for individuals with different ages. To that end, trees with 8, 14, 18 and 26 years old were cut, and discs with 10, 35, 55 and 75% were removed from the tree total height and another in the height corresponding to the chest height diameter– DBH, taken at a 1.30m. From these, samples were collected in three different positions in the pith-bark direction (next to pith, intermediate and next to bark) to determine the density. A significant density increase was observed for older trees samples. A density reduction from the basis to the top and an increase from the pith to the bark was observed.Universidade Federal Rural da Amazônia/UFRA2015-08-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/1839Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 58 No 2 (2015): RCA; 192-197Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 58 n. 2 (2015): RCA; 192-1972177-87601517-591Xreponame:Revista de Ciências Agrárias (Belém. Online)instname:Universidade Federal Rural da Amazônia (UFRA)instacron:UFRAenghttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/1839/641Melo, Rafael Rodolfoinfo:eu-repo/semantics/openAccess2017-07-18T18:39:51Zoai:ojs.www.periodicos.ufra.edu.br:article/1839Revistahttps://ajaes.ufra.edu.br/index.php/ajaes/PUBhttps://ajaes.ufra.edu.br/index.php/ajaes/oaiallan.lobato@ufra.edu.br || ajaes.suporte@gmail.com2177-87601517-591Xopendoar:2017-07-18T18:39:51Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA)false |
dc.title.none.fl_str_mv |
Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages |
title |
Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages |
spellingShingle |
Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages Melo, Rafael Rodolfo |
title_short |
Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages |
title_full |
Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages |
title_fullStr |
Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages |
title_full_unstemmed |
Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages |
title_sort |
Radial and longitudinal variation of Pinus taeda L. wood basic density in different ages |
author |
Melo, Rafael Rodolfo |
author_facet |
Melo, Rafael Rodolfo |
author_role |
author |
dc.contributor.author.fl_str_mv |
Melo, Rafael Rodolfo |
description |
The wood density is one of the parameters that most affect its properties, which makes it knowledge essential for any use indication. However, due to the high variability of this aspect within the tree, its determination shall consider a sampling throughout the stem. Thus, this study aimed to evaluate the longitudinal and radial variations of Pinus taeda L. wood density for individuals with different ages. To that end, trees with 8, 14, 18 and 26 years old were cut, and discs with 10, 35, 55 and 75% were removed from the tree total height and another in the height corresponding to the chest height diameter– DBH, taken at a 1.30m. From these, samples were collected in three different positions in the pith-bark direction (next to pith, intermediate and next to bark) to determine the density. A significant density increase was observed for older trees samples. A density reduction from the basis to the top and an increase from the pith to the bark was observed. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-08-25 |
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://ajaes.ufra.edu.br/index.php/ajaes/article/view/1839 |
url |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1839 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1839/641 |
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 Rural da Amazônia/UFRA |
publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
dc.source.none.fl_str_mv |
Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 58 No 2 (2015): RCA; 192-197 Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 58 n. 2 (2015): RCA; 192-197 2177-8760 1517-591X reponame:Revista de Ciências Agrárias (Belém. Online) instname:Universidade Federal Rural da Amazônia (UFRA) instacron:UFRA |
instname_str |
Universidade Federal Rural da Amazônia (UFRA) |
instacron_str |
UFRA |
institution |
UFRA |
reponame_str |
Revista de Ciências Agrárias (Belém. Online) |
collection |
Revista de Ciências Agrárias (Belém. Online) |
repository.name.fl_str_mv |
Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA) |
repository.mail.fl_str_mv |
allan.lobato@ufra.edu.br || ajaes.suporte@gmail.com |
_version_ |
1797231627996233728 |