Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/14804 |
Resumo: | This work aimed to evaluate the use of traditional models, profile and relative height method, for estimating the commercial volume of Anadenanthera colubrina (Vell.) Brenan. Data were obtained from scaling of separate lengths of the stem of 22 trees, using Smalian’s method. Tree stems were measured 0.1m, 0.30m, 0.70m, 1.0m, 1.30m above the ground and then every 1m. For purposes of method assessment and comparison, statistics were used that include percent standard error, bias, standard deviation of differences, in addition to graphic interpretation of residuals. Assessments showed that Stoate’s model is the most accurate, followed by Schumacher’s model. They also showed that the linearized Schumacher’s model reduced accuracy by an average 0.32%and that the relative height method was biased in this study. |
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Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) BrenanDiferentes estratégias para estimar o volume comercial de Anadenanthera colubrina (Vell.) BrenanVolume equationsTaperRelative heightEquações de volumeAfilamentoAltura relativaThis work aimed to evaluate the use of traditional models, profile and relative height method, for estimating the commercial volume of Anadenanthera colubrina (Vell.) Brenan. Data were obtained from scaling of separate lengths of the stem of 22 trees, using Smalian’s method. Tree stems were measured 0.1m, 0.30m, 0.70m, 1.0m, 1.30m above the ground and then every 1m. For purposes of method assessment and comparison, statistics were used that include percent standard error, bias, standard deviation of differences, in addition to graphic interpretation of residuals. Assessments showed that Stoate’s model is the most accurate, followed by Schumacher’s model. They also showed that the linearized Schumacher’s model reduced accuracy by an average 0.32%and that the relative height method was biased in this study.Objetivou-se, neste trabalho, avaliar o uso de modelos tradicionais, de perfil e o método da altura relativa, na estimativa do volume comercial de Anadenanthera colubrina (Vell.) Brenan. Os dados foram obtidos da cubagem rigorosa de 22 árvores através do método de Smalian. Os fustes das árvores foram medidos a 0,1m; 0,30m; 0,70m; 1,0m; 1,30m e posteriormente de 1 em 1m. Para fins de avaliação e comparação dos métodos, foram aplicadas estatísticas de: Erro padrão percentual, Bias, Desvio Padrão das Diferenças, além da interpretação gráfica dos resíduos. Com base nestas avaliações pôde-se concluir que o modelo de Stoate é o mais preciso, seguido pelo modelo de Schumacher. Conclui-se também que a linearização do modelo de Schumacher reduziu sua precisão 0,32% em média e que o método da altura relativa foi tendencioso neste estudo.Universidade Federal de Lavras (UFLA)2015-05-142017-08-01T20:17:03Z2017-08-01T20:17:03Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfCARVALHO, S. de P. C. e et al. Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan. CERNE, Lavras, v. 16, n. 3, p. 399-406, jul./set. 2010.http://repositorio.ufla.br/jspui/handle/1/148042317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAengAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessCarvalho, Samuel de Pádua Chaves eMendonça, Adriano Ribeiro deLima, Mariana Peres deCalegario, Natalino2021-02-28T21:18:29Zoai:localhost:1/14804Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-02-28T21:18:29Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan Diferentes estratégias para estimar o volume comercial de Anadenanthera colubrina (Vell.) Brenan |
title |
Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan |
spellingShingle |
Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan Carvalho, Samuel de Pádua Chaves e Volume equations Taper Relative height Equações de volume Afilamento Altura relativa |
title_short |
Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan |
title_full |
Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan |
title_fullStr |
Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan |
title_full_unstemmed |
Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan |
title_sort |
Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan |
author |
Carvalho, Samuel de Pádua Chaves e |
author_facet |
Carvalho, Samuel de Pádua Chaves e Mendonça, Adriano Ribeiro de Lima, Mariana Peres de Calegario, Natalino |
author_role |
author |
author2 |
Mendonça, Adriano Ribeiro de Lima, Mariana Peres de Calegario, Natalino |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Carvalho, Samuel de Pádua Chaves e Mendonça, Adriano Ribeiro de Lima, Mariana Peres de Calegario, Natalino |
dc.subject.por.fl_str_mv |
Volume equations Taper Relative height Equações de volume Afilamento Altura relativa |
topic |
Volume equations Taper Relative height Equações de volume Afilamento Altura relativa |
description |
This work aimed to evaluate the use of traditional models, profile and relative height method, for estimating the commercial volume of Anadenanthera colubrina (Vell.) Brenan. Data were obtained from scaling of separate lengths of the stem of 22 trees, using Smalian’s method. Tree stems were measured 0.1m, 0.30m, 0.70m, 1.0m, 1.30m above the ground and then every 1m. For purposes of method assessment and comparison, statistics were used that include percent standard error, bias, standard deviation of differences, in addition to graphic interpretation of residuals. Assessments showed that Stoate’s model is the most accurate, followed by Schumacher’s model. They also showed that the linearized Schumacher’s model reduced accuracy by an average 0.32%and that the relative height method was biased in this study. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-05-14 2017-08-01T20:17:03Z 2017-08-01T20:17:03Z 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 |
CARVALHO, S. de P. C. e et al. Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan. CERNE, Lavras, v. 16, n. 3, p. 399-406, jul./set. 2010. http://repositorio.ufla.br/jspui/handle/1/14804 |
identifier_str_mv |
CARVALHO, S. de P. C. e et al. Different strategies to estimate the commercial volume of Anadenanthera colubrina (Vell.) Brenan. CERNE, Lavras, v. 16, n. 3, p. 399-406, jul./set. 2010. |
url |
http://repositorio.ufla.br/jspui/handle/1/14804 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
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 |
_version_ |
1815439197993959424 |