Characterization of structure and development of models to quantify wood potential of an unmanaged Araucaria angustifolia stand
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
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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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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1783370935155294208 |