Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes

Detalhes bibliográficos
Autor(a) principal: Machado, Sebastião do Amaral
Data de Publicação: 2011
Outros Autores: Urbano, Edilson, Conceição, Marcio Barbosa da
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/242
Resumo: This research aims to compare stem volumes of P. oocarpa obtained by the methods of Smalian, form factor, volume equation and taper function. The used data came from 1100 trees distributed in 11 management regimes,  belonging to Duraflora S. A. , Agudos - SP. The trees were cubed and calculated theirs volumes, outside and inside  bark, for the mentioned methods. It was used the Test of  Bartlett and variance analysis for the comparison of  means. The variance analysis showed that significant  difference doesn’t exist among the methods for the 11  management regimes outside and inside bark at the level  of 95 % of probability.
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spelling Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimesComparação de métodos de estimativa de volume para Pinus oocarpa em diferentes idades e diferente iregimes de desbastesVolume by Smalianvolume equationtaper equationform factorVolume por Smalianequação de volumeequação de afilamentofator de formaThis research aims to compare stem volumes of P. oocarpa obtained by the methods of Smalian, form factor, volume equation and taper function. The used data came from 1100 trees distributed in 11 management regimes,  belonging to Duraflora S. A. , Agudos - SP. The trees were cubed and calculated theirs volumes, outside and inside  bark, for the mentioned methods. It was used the Test of  Bartlett and variance analysis for the comparison of  means. The variance analysis showed that significant  difference doesn’t exist among the methods for the 11  management regimes outside and inside bark at the level  of 95 % of probability.Esta pesquisa visa comparar os volumes dos fustes de P. oocarpa obtidos pelos métodos de Smalian, fator de forma, equação de volume e função de afilamento. Foram usadas 1100 árvores distribuídas em 11 regimes  e manejo pertencentes a Duraflora S. A. de Agudos – SP. As árvores foram cubadas e os seus volumes com e sem casca foram estimados pelos  métodos citados. Para verificar a homogeneidade de variâncias, aplicou-se o Teste de Bartlett. A análise de variância mostrou pela comparação do valor de F e  nível de significância, a não existência de diferenças significativas entre os métodos de estimativa de   volume para os 11 regimes de manejo com e sem casca, ao nível de 95% de probabilidade,  confirmando a hipótese de que os volumes médios estimados através dos métodos estudados são  estatisticamente iguais entre si.Embrapa Florestas2011-03-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/242Pesquisa Florestal Brasileira; n. 50 (2005): jan./jun.; 81Pesquisa Florestal Brasileira; No. 50 (2005): jan./jun.; 811983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/242/193Machado, Sebastião do AmaralUrbano, EdilsonConceição, Marcio Barbosa dainfo:eu-repo/semantics/openAccess2017-04-28T14:11:31Zoai:pfb.cnpf.embrapa.br/pfb:article/242Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2017-04-28T14:11:31Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes
Comparação de métodos de estimativa de volume para Pinus oocarpa em diferentes idades e diferente iregimes de desbastes
title Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes
spellingShingle Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes
Machado, Sebastião do Amaral
Volume by Smalian
volume equation
taper equation
form factor
Volume por Smalian
equação de volume
equação de afilamento
fator de forma
title_short Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes
title_full Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes
title_fullStr Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes
title_full_unstemmed Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes
title_sort Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes
author Machado, Sebastião do Amaral
author_facet Machado, Sebastião do Amaral
Urbano, Edilson
Conceição, Marcio Barbosa da
author_role author
author2 Urbano, Edilson
Conceição, Marcio Barbosa da
author2_role author
author
dc.contributor.author.fl_str_mv Machado, Sebastião do Amaral
Urbano, Edilson
Conceição, Marcio Barbosa da
dc.subject.por.fl_str_mv Volume by Smalian
volume equation
taper equation
form factor
Volume por Smalian
equação de volume
equação de afilamento
fator de forma
topic Volume by Smalian
volume equation
taper equation
form factor
Volume por Smalian
equação de volume
equação de afilamento
fator de forma
description This research aims to compare stem volumes of P. oocarpa obtained by the methods of Smalian, form factor, volume equation and taper function. The used data came from 1100 trees distributed in 11 management regimes,  belonging to Duraflora S. A. , Agudos - SP. The trees were cubed and calculated theirs volumes, outside and inside  bark, for the mentioned methods. It was used the Test of  Bartlett and variance analysis for the comparison of  means. The variance analysis showed that significant  difference doesn’t exist among the methods for the 11  management regimes outside and inside bark at the level  of 95 % of probability.
publishDate 2011
dc.date.none.fl_str_mv 2011-03-17
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://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/242
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/242
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/242/193
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 Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; n. 50 (2005): jan./jun.; 81
Pesquisa Florestal Brasileira; No. 50 (2005): jan./jun.; 81
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
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