Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand

Detalhes bibliográficos
Autor(a) principal: Curto, Rafaella De Angeli
Data de Publicação: 2014
Outros Autores: de Mattos, Patrícia Povoa, Braz, Evaldo Muñoz, Zachow, Randolf, Péllico Netto, Sylvio
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/764
Resumo: The objective of this study was to characterize of an unmanaged stand of Araucaria angustifolia and to development of models to quantify the wood potential, aiming to support the development of forest management plans in stands with similar conditions. The work was developed into a stand established in 1946, in National Forest of Açungui, in Campo Largo County, Paraná State, Brazil. There was only one thinning in the stand, between 1970 and 1980. From the frequency of individuals in each diametric class, it was observed the condition of stagnation and competition with cohort in the beginning of class distribution. With the application of the probability density function of Weibull-3P, Trorey model, and the 5th polynomial by diameter class, it was possible to confirm the stock estimative of timber volume of the stand. This analysis indicated that the stand presents average annual wood production smaller than the species potential. So it is recommended the thinning to promote growth of remnant trees. With the probability density function of Weibull-3p, that was selected, it is possible to project the diametric distribution of the stand, when analyzed complementarily with growth diameter information, if the stand remains unmanaged. Certainly, the optimum potential of timber production could have been manifested if the stand were managed during the cycle planed.
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spelling Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia standCaracterização da estrutura e desenvolvimento de modelos para quantificação do potencial madeireiro em povoamento não manejado de Araucaria angustifoliaForest ManagementNational ForestDiameter distributionManejo florestalFloresta NacionalDistribuição diamétricaThe objective of this study was to characterize of an unmanaged stand of Araucaria angustifolia and to development of models to quantify the wood potential, aiming to support the development of forest management plans in stands with similar conditions. The work was developed into a stand established in 1946, in National Forest of Açungui, in Campo Largo County, Paraná State, Brazil. There was only one thinning in the stand, between 1970 and 1980. From the frequency of individuals in each diametric class, it was observed the condition of stagnation and competition with cohort in the beginning of class distribution. With the application of the probability density function of Weibull-3P, Trorey model, and the 5th polynomial by diameter class, it was possible to confirm the stock estimative of timber volume of the stand. This analysis indicated that the stand presents average annual wood production smaller than the species potential. So it is recommended the thinning to promote growth of remnant trees. With the probability density function of Weibull-3p, that was selected, it is possible to project the diametric distribution of the stand, when analyzed complementarily with growth diameter information, if the stand remains unmanaged. Certainly, the optimum potential of timber production could have been manifested if the stand were managed during the cycle planed.Objetivou-se caracterizar um povoamento não manejado de Araucaria angustifolia e desenvolver modelos para quantificação do potencial madeireiro, visando subsidiar a elaboração de planos de manejo em povoamentos com condições semelhantes. O trabalho foi desenvolvido em um povoamento estabelecido em 1946, na Floresta Nacional do Açungui, no município de Campo Largo, estado do Paraná, com histórico de apenas um desbaste, entre 1970 e 1980. A partir da frequência dos indivíduos por classe diamétrica, notou-se condição de povoamento estagnado em competição, com coorte no início da distribuição. Com a aplicação da função densidade de probabilidade de Weibull-3P, do modelo de Trorey e do polinômio do 5º grau por classe diamétrica, foi possível confirmar a estimativa do potencial madeireiro do povoamento. Essa análise indicou que o plantio apresenta produção de madeira média anual abaixo do potencial da espécie, sendo recomendável condução de desbaste para favorecimento de árvores remanescentes. Com a função densidade probabilidade selecionada, Weibull-3P, é possível projetar a distribuição diamétrica do povoamento, quando analisada de forma complementar com informações de crescimento em diâmetro, caso este permaneça não manejado. Certamente, o potencial ótimo de produção madeireira poderia ter se manifestado em situação onde a condução de manejo ocorresse durante todo o ciclo previsto.Embrapa Florestas2014-12-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/76410.4336/2014.pfb.34.80.764Pesquisa Florestal Brasileira; v. 34 n. 80 (2014): out./dez.; 303-319Pesquisa Florestal Brasileira; Vol. 34 No. 80 (2014): out./dez.; 303-3191983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/764/402Curto, Rafaella De Angelide Mattos, Patrícia PovoaBraz, Evaldo MuñozZachow, RandolfPéllico Netto, Sylvioinfo:eu-repo/semantics/openAccess2017-04-28T12:49:00Zoai:pfb.cnpf.embrapa.br/pfb:article/764Revistahttps://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:2017-04-28T12:49Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand
Caracterização da estrutura e desenvolvimento de modelos para quantificação do potencial madeireiro em povoamento não manejado de Araucaria angustifolia
title Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand
spellingShingle Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand
Curto, Rafaella De Angeli
Forest Management
National Forest
Diameter distribution
Manejo florestal
Floresta Nacional
Distribuição diamétrica
title_short Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand
title_full Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand
title_fullStr Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand
title_full_unstemmed Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand
title_sort Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand
author Curto, Rafaella De Angeli
author_facet Curto, Rafaella De Angeli
de Mattos, Patrícia Povoa
Braz, Evaldo Muñoz
Zachow, Randolf
Péllico Netto, Sylvio
author_role author
author2 de Mattos, Patrícia Povoa
Braz, Evaldo Muñoz
Zachow, Randolf
Péllico Netto, Sylvio
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Curto, Rafaella De Angeli
de Mattos, Patrícia Povoa
Braz, Evaldo Muñoz
Zachow, Randolf
Péllico Netto, Sylvio
dc.subject.por.fl_str_mv Forest Management
National Forest
Diameter distribution
Manejo florestal
Floresta Nacional
Distribuição diamétrica
topic Forest Management
National Forest
Diameter distribution
Manejo florestal
Floresta Nacional
Distribuição diamétrica
description The objective of this study was to characterize of an unmanaged stand of Araucaria angustifolia and to development of models to quantify the wood potential, aiming to support the development of forest management plans in stands with similar conditions. The work was developed into a stand established in 1946, in National Forest of Açungui, in Campo Largo County, Paraná State, Brazil. There was only one thinning in the stand, between 1970 and 1980. From the frequency of individuals in each diametric class, it was observed the condition of stagnation and competition with cohort in the beginning of class distribution. With the application of the probability density function of Weibull-3P, Trorey model, and the 5th polynomial by diameter class, it was possible to confirm the stock estimative of timber volume of the stand. This analysis indicated that the stand presents average annual wood production smaller than the species potential. So it is recommended the thinning to promote growth of remnant trees. With the probability density function of Weibull-3p, that was selected, it is possible to project the diametric distribution of the stand, when analyzed complementarily with growth diameter information, if the stand remains unmanaged. Certainly, the optimum potential of timber production could have been manifested if the stand were managed during the cycle planed.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-30
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/764
10.4336/2014.pfb.34.80.764
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/764
identifier_str_mv 10.4336/2014.pfb.34.80.764
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/764/402
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; v. 34 n. 80 (2014): out./dez.; 303-319
Pesquisa Florestal Brasileira; Vol. 34 No. 80 (2014): out./dez.; 303-319
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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