FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus)
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/113 |
Resumo: | The objectives of this study were: to fit and select statistical models for estimating the total volume, with and without bark, and number of fence posts in three counties of Minas Gerais State, as well as, to define the stack factor per diameter class and to evaluate, by means of the identity model test, the possibility of using the same mathematical model for all regions. Data base were obtained from a scaling of 174 trees grouped in six diameter classes within the three study regions. The scaling was carried out using the xylometer method (water displacement technique). The accuracy of the models was evaluated using the coefficient of determination, the mean standard error of estimate, and the graphical analysis of residuals. The Spurr logarithm model was selected as the best one for all tested variables. Considering the variables total volume, with and without bark, the identity test showed the possibility of using the same model for Aiuruoca and Ouro Preto counties whereas for the variable number of fence posts, the identity test showed that there is no possibility of grouping for any combination among the counties. |
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FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus)Stack factorscalingxylometerThe objectives of this study were: to fit and select statistical models for estimating the total volume, with and without bark, and number of fence posts in three counties of Minas Gerais State, as well as, to define the stack factor per diameter class and to evaluate, by means of the identity model test, the possibility of using the same mathematical model for all regions. Data base were obtained from a scaling of 174 trees grouped in six diameter classes within the three study regions. The scaling was carried out using the xylometer method (water displacement technique). The accuracy of the models was evaluated using the coefficient of determination, the mean standard error of estimate, and the graphical analysis of residuals. The Spurr logarithm model was selected as the best one for all tested variables. Considering the variables total volume, with and without bark, the identity test showed the possibility of using the same model for Aiuruoca and Ouro Preto counties whereas for the variable number of fence posts, the identity test showed that there is no possibility of grouping for any combination among the counties.CERNECERNE2015-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/113CERNE; Vol. 16 No. 4 (2010); 431–442CERNE; v. 16 n. 4 (2010); 431–4422317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttps://cerne.ufla.br/site/index.php/CERNE/article/view/113/87Copyright (c) 2015 José Fabio Camolesi, José Roberto Soares Scolforo, Antonio Donizette de Oliveira, Fausto Weimar Acerbi Júnior, Ana Luiza Rufini, José Márcio de Melloinfo:eu-repo/semantics/openAccessCamolesi, José FabioScolforo, José Roberto SoaresOliveira, Antonio Donizette deJúnior, Fausto Weimar AcerbiRufini, Ana LuizaMello, José Márcio de2015-11-06T19:16:19Zoai:cerne.ufla.br:article/113Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2024-05-21T19:53:31.226885Cerne (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus) |
title |
FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus) |
spellingShingle |
FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus) Camolesi, José Fabio Stack factor scaling xylometer |
title_short |
FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus) |
title_full |
FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus) |
title_fullStr |
FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus) |
title_full_unstemmed |
FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus) |
title_sort |
FITTING, SELECTION AND MODEL IDENTITY TEST FOR VOLUME AND NUMBER OF FENCE POSTS OF CANDEIA (Eremanthus erythropappus) |
author |
Camolesi, José Fabio |
author_facet |
Camolesi, José Fabio Scolforo, José Roberto Soares Oliveira, Antonio Donizette de Júnior, Fausto Weimar Acerbi Rufini, Ana Luiza Mello, José Márcio de |
author_role |
author |
author2 |
Scolforo, José Roberto Soares Oliveira, Antonio Donizette de Júnior, Fausto Weimar Acerbi Rufini, Ana Luiza Mello, José Márcio de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Camolesi, José Fabio Scolforo, José Roberto Soares Oliveira, Antonio Donizette de Júnior, Fausto Weimar Acerbi Rufini, Ana Luiza Mello, José Márcio de |
dc.subject.por.fl_str_mv |
Stack factor scaling xylometer |
topic |
Stack factor scaling xylometer |
description |
The objectives of this study were: to fit and select statistical models for estimating the total volume, with and without bark, and number of fence posts in three counties of Minas Gerais State, as well as, to define the stack factor per diameter class and to evaluate, by means of the identity model test, the possibility of using the same mathematical model for all regions. Data base were obtained from a scaling of 174 trees grouped in six diameter classes within the three study regions. The scaling was carried out using the xylometer method (water displacement technique). The accuracy of the models was evaluated using the coefficient of determination, the mean standard error of estimate, and the graphical analysis of residuals. The Spurr logarithm model was selected as the best one for all tested variables. Considering the variables total volume, with and without bark, the identity test showed the possibility of using the same model for Aiuruoca and Ouro Preto counties whereas for the variable number of fence posts, the identity test showed that there is no possibility of grouping for any combination among the counties. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-05-13 |
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://cerne.ufla.br/site/index.php/CERNE/article/view/113 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/113 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/113/87 |
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 |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 16 No. 4 (2010); 431–442 CERNE; v. 16 n. 4 (2010); 431–442 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1799874939200733184 |