DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND
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) |
DOI: | 10.5902/198050988451 |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/8451 |
Resumo: | http://dx.doi.org/10.5902/198050988451This work undertakes to study de diameter: the basal area ratio at the moment of occurrence of self-thinning of Pinus taeda L. stand in some spacings, considering its full density. For that, the Tang model was used in order to relate the density of trees with the diameter, with data of permanent plots, measured annually until 18 years-old. The results indicate that self-thinning model for Tang presented excellent precision and high efficiency, however with distinct slope coefficient of the praised one for Tang (-3/2) resulting a value of -1,6523. At the moment of occurrence of self-thinning, trees reached diameter equal to 14 and 17 cm, in the spacing of 2 x 2 or 3 x 2 m, with basal area of 38,8 and 47,5 m²/ha, respectively. In these spacings, the maximal basal area was of 78 m²/ha, in 18 years-old, rising tendency. In these spacing, the diameter: the basal area ratio at the moment of occurrence of self-thinning was 0,36 and 0,37, respectively. |
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Ciência Florestal (Online) |
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DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STANDRelação do quociente do diâmetro pela área basal com o autodesbaste em povoamento equiâneo de Pinus taeda L.self-thinningdG ratiodensityPinus taedaautodesbasterelação dGdensidadePinus taedahttp://dx.doi.org/10.5902/198050988451This work undertakes to study de diameter: the basal area ratio at the moment of occurrence of self-thinning of Pinus taeda L. stand in some spacings, considering its full density. For that, the Tang model was used in order to relate the density of trees with the diameter, with data of permanent plots, measured annually until 18 years-old. The results indicate that self-thinning model for Tang presented excellent precision and high efficiency, however with distinct slope coefficient of the praised one for Tang (-3/2) resulting a value of -1,6523. At the moment of occurrence of self-thinning, trees reached diameter equal to 14 and 17 cm, in the spacing of 2 x 2 or 3 x 2 m, with basal area of 38,8 and 47,5 m²/ha, respectively. In these spacings, the maximal basal area was of 78 m²/ha, in 18 years-old, rising tendency. In these spacing, the diameter: the basal area ratio at the moment of occurrence of self-thinning was 0,36 and 0,37, respectively.http://dx.doi.org/10.5902/198050988451Este trabalho teve por objetivo estudar o quociente do diâmetro pela área basal no momento da ocorrência do autodesbaste em povoamentos de Pinus taeda L., em vários espaçamentos, manejado em densidade completa. Para isso, foi utilizado o modelo Tang, relacionando o número de árvores por hectare com o diâmetro médio, a partir de dados de parcelas permanentes, medidas anualmente até os 18 anos de idade. Os resultados indicam que o modelo de autodesbaste proposto por Tang, apresentou ótima precisão e elevada eficiência, porém, com coeficiente angular preconizado por Tang de (-3/2), tendo resultado um valor de -1,6523. No momento da ocorrência do autodesbaste, as árvores atingiram diâmetros de 14 e 17 cm, nos espaçamento de 2 x 2 e 3 x 2 m, com áreas basais de 38,8 e 47,5 m² ha-1, respectivamente. Em todos os espaçamentos a área basal máxima foi de 78 m² ha-1, aos 18 anos de idade, com tendência ascendente. Nesses espaçamentos, os quocientes de diâmetro pela área basal no momento de ocorrência do autodesbaste foram de 0,36 e 0,37, respectivamente.Universidade Federal de Santa Maria2013-03-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/845110.5902/198050988451Ciência Florestal; Vol. 23 No. 1 (2013); 175-181Ciência Florestal; v. 23 n. 1 (2013); 175-1811980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/8451/pdfSchneider, Paulo Sérgio PigattoFinger, César Augusto GuimarãesSchneider, Paulo Renatoinfo:eu-repo/semantics/openAccess2017-04-17T18:53:11Zoai:ojs.pkp.sfu.ca:article/8451Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-04-17T18:53:11Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND Relação do quociente do diâmetro pela área basal com o autodesbaste em povoamento equiâneo de Pinus taeda L. |
title |
DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND |
spellingShingle |
DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND Schneider, Paulo Sérgio Pigatto self-thinning d G ratio density Pinus taeda autodesbaste relação d G densidade Pinus taeda Schneider, Paulo Sérgio Pigatto self-thinning d G ratio density Pinus taeda autodesbaste relação d G densidade Pinus taeda |
title_short |
DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND |
title_full |
DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND |
title_fullStr |
DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND |
title_full_unstemmed |
DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND |
title_sort |
DIAMETER: THE BASAL AREA RATIO RELATION WITH THE SELF-THINNING IN Pinus taeda L. EVEN-AGED STAND |
author |
Schneider, Paulo Sérgio Pigatto |
author_facet |
Schneider, Paulo Sérgio Pigatto Schneider, Paulo Sérgio Pigatto Finger, César Augusto Guimarães Schneider, Paulo Renato Finger, César Augusto Guimarães Schneider, Paulo Renato |
author_role |
author |
author2 |
Finger, César Augusto Guimarães Schneider, Paulo Renato |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Schneider, Paulo Sérgio Pigatto Finger, César Augusto Guimarães Schneider, Paulo Renato |
dc.subject.por.fl_str_mv |
self-thinning d G ratio density Pinus taeda autodesbaste relação d G densidade Pinus taeda |
topic |
self-thinning d G ratio density Pinus taeda autodesbaste relação d G densidade Pinus taeda |
description |
http://dx.doi.org/10.5902/198050988451This work undertakes to study de diameter: the basal area ratio at the moment of occurrence of self-thinning of Pinus taeda L. stand in some spacings, considering its full density. For that, the Tang model was used in order to relate the density of trees with the diameter, with data of permanent plots, measured annually until 18 years-old. The results indicate that self-thinning model for Tang presented excellent precision and high efficiency, however with distinct slope coefficient of the praised one for Tang (-3/2) resulting a value of -1,6523. At the moment of occurrence of self-thinning, trees reached diameter equal to 14 and 17 cm, in the spacing of 2 x 2 or 3 x 2 m, with basal area of 38,8 and 47,5 m²/ha, respectively. In these spacings, the maximal basal area was of 78 m²/ha, in 18 years-old, rising tendency. In these spacing, the diameter: the basal area ratio at the moment of occurrence of self-thinning was 0,36 and 0,37, respectively. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-03-27 |
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/8451 10.5902/198050988451 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/8451 |
identifier_str_mv |
10.5902/198050988451 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/8451/pdf |
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. 1 (2013); 175-181 Ciência Florestal; v. 23 n. 1 (2013); 175-181 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_ |
1822181489068998656 |
dc.identifier.doi.none.fl_str_mv |
10.5902/198050988451 |