Prediction System for Diameter Distribution and Wood Production of Eucalyptus

Detalhes bibliográficos
Autor(a) principal: Miranda,Rodrigo
Data de Publicação: 2018
Outros Autores: Fiorentin,Luan, Péllico Netto,Sylvio, Juvanhol,Ronie, Corte,Ana Dalla
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Floresta e Ambiente
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872018000300121
Resumo: ABSTRACT The aim of the present study was to propose a prediction system to estimate the diameter distribution and wood production in unthinned eucalyptus clone plantations. Data was obtained from permanent sample units, with ages from 28 to 78 months. The Weibull distribution was used to estimate the frequency of the number of trees per diameter class. Models were used to relate the Weibull distribution coefficients with forest stand attributes. The forest stand variables most correlated with the Weibull distribution parameters were the minimum, medium, maximum and quadratic diameters and the dominant height. The projected frequency of tree numbers and the production by diameter class obtained by the system of equations did not differ statistically from the observed values evaluated by the t-test at 95% probability.
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spelling Prediction System for Diameter Distribution and Wood Production of EucalyptusWeibull distributionparameter prediction methodEucalyptus spABSTRACT The aim of the present study was to propose a prediction system to estimate the diameter distribution and wood production in unthinned eucalyptus clone plantations. Data was obtained from permanent sample units, with ages from 28 to 78 months. The Weibull distribution was used to estimate the frequency of the number of trees per diameter class. Models were used to relate the Weibull distribution coefficients with forest stand attributes. The forest stand variables most correlated with the Weibull distribution parameters were the minimum, medium, maximum and quadratic diameters and the dominant height. The projected frequency of tree numbers and the production by diameter class obtained by the system of equations did not differ statistically from the observed values evaluated by the t-test at 95% probability.Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872018000300121Floresta e Ambiente v.25 n.3 2018reponame:Floresta e Ambienteinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJ10.1590/2179-8087.054816info:eu-repo/semantics/openAccessMiranda,RodrigoFiorentin,LuanPéllico Netto,SylvioJuvanhol,RonieCorte,Ana Dallaeng2018-07-23T00:00:00Zoai:scielo:S2179-80872018000300121Revistahttps://www.floram.org/PUBhttps://old.scielo.br/oai/scielo-oai.phpfloramjournal@gmail.com||floram@ufrrj.br||2179-80871415-0980opendoar:2018-07-23T00:00Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Prediction System for Diameter Distribution and Wood Production of Eucalyptus
title Prediction System for Diameter Distribution and Wood Production of Eucalyptus
spellingShingle Prediction System for Diameter Distribution and Wood Production of Eucalyptus
Miranda,Rodrigo
Weibull distribution
parameter prediction method
Eucalyptus sp
title_short Prediction System for Diameter Distribution and Wood Production of Eucalyptus
title_full Prediction System for Diameter Distribution and Wood Production of Eucalyptus
title_fullStr Prediction System for Diameter Distribution and Wood Production of Eucalyptus
title_full_unstemmed Prediction System for Diameter Distribution and Wood Production of Eucalyptus
title_sort Prediction System for Diameter Distribution and Wood Production of Eucalyptus
author Miranda,Rodrigo
author_facet Miranda,Rodrigo
Fiorentin,Luan
Péllico Netto,Sylvio
Juvanhol,Ronie
Corte,Ana Dalla
author_role author
author2 Fiorentin,Luan
Péllico Netto,Sylvio
Juvanhol,Ronie
Corte,Ana Dalla
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Miranda,Rodrigo
Fiorentin,Luan
Péllico Netto,Sylvio
Juvanhol,Ronie
Corte,Ana Dalla
dc.subject.por.fl_str_mv Weibull distribution
parameter prediction method
Eucalyptus sp
topic Weibull distribution
parameter prediction method
Eucalyptus sp
description ABSTRACT The aim of the present study was to propose a prediction system to estimate the diameter distribution and wood production in unthinned eucalyptus clone plantations. Data was obtained from permanent sample units, with ages from 28 to 78 months. The Weibull distribution was used to estimate the frequency of the number of trees per diameter class. Models were used to relate the Weibull distribution coefficients with forest stand attributes. The forest stand variables most correlated with the Weibull distribution parameters were the minimum, medium, maximum and quadratic diameters and the dominant height. The projected frequency of tree numbers and the production by diameter class obtained by the system of equations did not differ statistically from the observed values evaluated by the t-test at 95% probability.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872018000300121
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872018000300121
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2179-8087.054816
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
dc.source.none.fl_str_mv Floresta e Ambiente v.25 n.3 2018
reponame:Floresta e Ambiente
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Floresta e Ambiente
collection Floresta e Ambiente
repository.name.fl_str_mv Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv floramjournal@gmail.com||floram@ufrrj.br||
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