Basal area increment model of araucaria trees in uneven aged forest
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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/792 |
Resumo: | The present study aimed to develop a mathematical model to describe annual periodic percentage increment in basal area of Araucaria angustifolia trees with data collected from increment cores extracted radially from the trunk at breast height of 109 trees distributed in a large diameter range. Dendrometric and morphometric attributes were tested by multiple linear regressions as independent variables and their interactions with dummy variables as descriptors of social position class. The model explains 80% of total variation of the periodic annual percentage increment in basal area with formal crown and height/diameter relationship for trees of all social positions, as well as length and crown proportion of dominant trees described by the dummy variable. Morphometric variables, especially those that characterize the crown size, are indicated for development of individual tree growth models of Araucaria angustifolia. |
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Basal area increment model of araucaria trees in uneven aged forestModelo de incremento em área basal para árvores de araucária de uma floresta inequiâneaAraucaria angustifoliaPosição sociológicaRelações morfométricas.Araucaria angustifoliaSociological positionMorphometric relationsThe present study aimed to develop a mathematical model to describe annual periodic percentage increment in basal area of Araucaria angustifolia trees with data collected from increment cores extracted radially from the trunk at breast height of 109 trees distributed in a large diameter range. Dendrometric and morphometric attributes were tested by multiple linear regressions as independent variables and their interactions with dummy variables as descriptors of social position class. The model explains 80% of total variation of the periodic annual percentage increment in basal area with formal crown and height/diameter relationship for trees of all social positions, as well as length and crown proportion of dominant trees described by the dummy variable. Morphometric variables, especially those that characterize the crown size, are indicated for development of individual tree growth models of Araucaria angustifolia.O presente estudo teve como objetivo desenvolver um modelo matemático para descrever o incremento periódico anual em percentagem para a área basal de árvores de Araucaria angustifolia, com dados coletados de rolos de incrementos extraídos radialmente do tronco de 109 árvores distribuídas em larga amplitude diamétrica. Os atributos dendrométricos e morfométricos foram testados por regressão linear múltipla como variáveis independentes e suas interações com variáveis dummy como descritoras das classes de posição social. O modelo resultante explica 80% da variação total do incremento periódico anual em área basal percentual com as variáveis formal de copa e a relação altura/diâmetro para árvores de todas as posições sociais, juntamente com o comprimento e proporção de copa das árvores dominantes classificadas por variável dummy. As variáveis morfométricas, principalmente as que caracterizam as dimensões da copa, são indicadas para o desenvolvimento de modelos de crescimento de árvores individuais de araucária.Embrapa Florestas2015-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/79210.4336/2015.pfb.35.83.792Pesquisa Florestal Brasileira; v. 35 n. 83 (2015): jul./set.; 239-245Pesquisa Florestal Brasileira; Vol. 35 No. 83 (2015): jul./set.; 239-2451983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/792/431Costa, Emanuel ArnoniFinger, César Augusto GuimarãesHess, André Felipeinfo:eu-repo/semantics/openAccess2018-03-20T18:25:35Zoai:pfb.cnpf.embrapa.br/pfb:article/792Revistahttps://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:2018-03-20T18:25:35Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Basal area increment model of araucaria trees in uneven aged forest Modelo de incremento em área basal para árvores de araucária de uma floresta inequiânea |
title |
Basal area increment model of araucaria trees in uneven aged forest |
spellingShingle |
Basal area increment model of araucaria trees in uneven aged forest Costa, Emanuel Arnoni Araucaria angustifolia Posição sociológica Relações morfométricas. Araucaria angustifolia Sociological position Morphometric relations |
title_short |
Basal area increment model of araucaria trees in uneven aged forest |
title_full |
Basal area increment model of araucaria trees in uneven aged forest |
title_fullStr |
Basal area increment model of araucaria trees in uneven aged forest |
title_full_unstemmed |
Basal area increment model of araucaria trees in uneven aged forest |
title_sort |
Basal area increment model of araucaria trees in uneven aged forest |
author |
Costa, Emanuel Arnoni |
author_facet |
Costa, Emanuel Arnoni Finger, César Augusto Guimarães Hess, André Felipe |
author_role |
author |
author2 |
Finger, César Augusto Guimarães Hess, André Felipe |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Costa, Emanuel Arnoni Finger, César Augusto Guimarães Hess, André Felipe |
dc.subject.por.fl_str_mv |
Araucaria angustifolia Posição sociológica Relações morfométricas. Araucaria angustifolia Sociological position Morphometric relations |
topic |
Araucaria angustifolia Posição sociológica Relações morfométricas. Araucaria angustifolia Sociological position Morphometric relations |
description |
The present study aimed to develop a mathematical model to describe annual periodic percentage increment in basal area of Araucaria angustifolia trees with data collected from increment cores extracted radially from the trunk at breast height of 109 trees distributed in a large diameter range. Dendrometric and morphometric attributes were tested by multiple linear regressions as independent variables and their interactions with dummy variables as descriptors of social position class. The model explains 80% of total variation of the periodic annual percentage increment in basal area with formal crown and height/diameter relationship for trees of all social positions, as well as length and crown proportion of dominant trees described by the dummy variable. Morphometric variables, especially those that characterize the crown size, are indicated for development of individual tree growth models of Araucaria angustifolia. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-30 |
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/792 10.4336/2015.pfb.35.83.792 |
url |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/792 |
identifier_str_mv |
10.4336/2015.pfb.35.83.792 |
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/792/431 |
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. 35 n. 83 (2015): jul./set.; 239-245 Pesquisa Florestal Brasileira; Vol. 35 No. 83 (2015): jul./set.; 239-245 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 |
_version_ |
1783370935180460032 |