Site quality curves for african mahogany plantations in Brazil

Detalhes bibliográficos
Autor(a) principal: Ribeiro, Andressa
Data de Publicação: 2016
Outros Autores: Ferraz Filho, Antonio Carlos, Tomé, Margarida, Scolforo, José Roberto Soares
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/14301
Resumo: Site quality estimation is an important tool in forest management since it is useful for modeling growth and yield for even-aged stands. Data from African mahogany (Khaya ivorensis A. Chev.) Brazilian plantations were used to develop a model to predict dominant height growth, comparing dynamic base-age invariant site index models with the guide curve method (static models). For the evaluation of the candidate models qualitative and quantitative criteria were used. We also verified the stability of the candidate models, preferring a model providing fewer site class changes when predicting site index from different ages. The Lundqvist-Korf function fitted with the guide curve method proved to be effective and accurate for site classification and dominant height predictions of African mahogany stands. The range of observed site index, at a reference age of 15, was between 17 and 33 meters.
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spelling Site quality curves for african mahogany plantations in BrazilCurvas de classificação de sítio para plantios de mogno africano no BrasilForest managementNonlinear equationsDominant heightSite indexManejo florestalEquações não linearesAltura dominanteQualidade de sítioSite quality estimation is an important tool in forest management since it is useful for modeling growth and yield for even-aged stands. Data from African mahogany (Khaya ivorensis A. Chev.) Brazilian plantations were used to develop a model to predict dominant height growth, comparing dynamic base-age invariant site index models with the guide curve method (static models). For the evaluation of the candidate models qualitative and quantitative criteria were used. We also verified the stability of the candidate models, preferring a model providing fewer site class changes when predicting site index from different ages. The Lundqvist-Korf function fitted with the guide curve method proved to be effective and accurate for site classification and dominant height predictions of African mahogany stands. The range of observed site index, at a reference age of 15, was between 17 and 33 meters.A estimativa da qualidade de sítio é uma importante ferramenta para o manejo florestal, uma vez que auxilia na modelagem do crescimento e produção de florestas equiâneas. Dados de plantios brasileiros de mogno africano (Khaya ivorensisA. Chev.) foram utilizados para avaliar modelos de crescimento em altura dominante comparando modelos dinâmicos invariantes com a idade padrão e modelos estáticos (método da curva guia). Para a avaliação dos modelos foram utilizados critérios quantitativos e qualitativos. Também foi verificada a estabilidade dos modelos candidatos, sendo preferido o modelo que resultou em menos mudanças de classes na predição da mesma parcela em diferentes idades. O modelo de Lundqvist-Korf com o método da curva guia se mostrou eficiente, sendo recomendado para a classificação de sítios e para a predição de altura dominante em povoamentos de mogno africano. A amplitude dos índices de sítio, na idade de referência de 15 anos, foi de 17 a 33 metros.Universidade Federal de Lavras (UFLA)2016-12-232017-08-01T20:14:13Z2017-08-01T20:14:13Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfRIBEIRO, A. et al. Site quality curves for african mahogany plantations in Brazil. CERNE, Lavras, v. 22, n. 4, p. 439-448, 2016. DOI: 10.1590/01047760201622042185.http://repositorio.ufla.br/jspui/handle/1/143012317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/1410/955Copyright (c) 2016 CERNEhttp://creativecommons.org/licenses/by/4.0/Attribution 4.0 Internationalinfo:eu-repo/semantics/openAccessRibeiro, AndressaFerraz Filho, Antonio CarlosTomé, MargaridaScolforo, José Roberto Soares2021-05-30T00:13:00Zoai:localhost:1/14301Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-05-30T00:13Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Site quality curves for african mahogany plantations in Brazil
Curvas de classificação de sítio para plantios de mogno africano no Brasil
title Site quality curves for african mahogany plantations in Brazil
spellingShingle Site quality curves for african mahogany plantations in Brazil
Ribeiro, Andressa
Forest management
Nonlinear equations
Dominant height
Site index
Manejo florestal
Equações não lineares
Altura dominante
Qualidade de sítio
title_short Site quality curves for african mahogany plantations in Brazil
title_full Site quality curves for african mahogany plantations in Brazil
title_fullStr Site quality curves for african mahogany plantations in Brazil
title_full_unstemmed Site quality curves for african mahogany plantations in Brazil
title_sort Site quality curves for african mahogany plantations in Brazil
author Ribeiro, Andressa
author_facet Ribeiro, Andressa
Ferraz Filho, Antonio Carlos
Tomé, Margarida
Scolforo, José Roberto Soares
author_role author
author2 Ferraz Filho, Antonio Carlos
Tomé, Margarida
Scolforo, José Roberto Soares
author2_role author
author
author
dc.contributor.author.fl_str_mv Ribeiro, Andressa
Ferraz Filho, Antonio Carlos
Tomé, Margarida
Scolforo, José Roberto Soares
dc.subject.por.fl_str_mv Forest management
Nonlinear equations
Dominant height
Site index
Manejo florestal
Equações não lineares
Altura dominante
Qualidade de sítio
topic Forest management
Nonlinear equations
Dominant height
Site index
Manejo florestal
Equações não lineares
Altura dominante
Qualidade de sítio
description Site quality estimation is an important tool in forest management since it is useful for modeling growth and yield for even-aged stands. Data from African mahogany (Khaya ivorensis A. Chev.) Brazilian plantations were used to develop a model to predict dominant height growth, comparing dynamic base-age invariant site index models with the guide curve method (static models). For the evaluation of the candidate models qualitative and quantitative criteria were used. We also verified the stability of the candidate models, preferring a model providing fewer site class changes when predicting site index from different ages. The Lundqvist-Korf function fitted with the guide curve method proved to be effective and accurate for site classification and dominant height predictions of African mahogany stands. The range of observed site index, at a reference age of 15, was between 17 and 33 meters.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-23
2017-08-01T20:14:13Z
2017-08-01T20:14:13Z
2017-08-01
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 RIBEIRO, A. et al. Site quality curves for african mahogany plantations in Brazil. CERNE, Lavras, v. 22, n. 4, p. 439-448, 2016. DOI: 10.1590/01047760201622042185.
http://repositorio.ufla.br/jspui/handle/1/14301
identifier_str_mv RIBEIRO, A. et al. Site quality curves for african mahogany plantations in Brazil. CERNE, Lavras, v. 22, n. 4, p. 439-448, 2016. DOI: 10.1590/01047760201622042185.
url http://repositorio.ufla.br/jspui/handle/1/14301
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.cerne.ufla.br/site/index.php/CERNE/article/view/1410/955
dc.rights.driver.fl_str_mv Copyright (c) 2016 CERNE
http://creativecommons.org/licenses/by/4.0/
Attribution 4.0 International
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2016 CERNE
http://creativecommons.org/licenses/by/4.0/
Attribution 4.0 International
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
dc.source.none.fl_str_mv 2317-6342
0104-7760
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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