Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations

Detalhes bibliográficos
Autor(a) principal: White, Benjamin Leonardo Alves
Data de Publicação: 2016
Outros Autores: White, Larissa Alves Secundo, Ribeiro, Genésio Tâmara, Souza, Rosemeri Melo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/14019
Resumo: Modeling forest fire behavior is an important task that can be used to assist in fire prevention and suppression operations. However, according to previous studies, the existing common worldwide fire behavior models used do not correctly estimate the fire behavior in Brazilian commercial hybrid eucalypt plantations. Therefore, this study aims to build new empirical models to predict the fire rate of spread, flame length and fuel consumption for such vegetation. To meet these objectives, 105 laboratory experimental burns were done, where the main fuel characteristics and weather variables that influence fire behavior were controlled and/or measured in each experiment. Dependent and independent variables were fitted through multiple regression analysis. The fire rate of spread proposed model is based on the wind speed, fuel bed bulk density and 1-h dead fuel moisture content (r2 = 0.86); the flame length model is based on the fuel bed depth, 1-h dead fuel moisture content and wind speed (r2 = 0.72); the fuel consumption proposed model has the 1-h dead fuel moisture, fuel bed bulk density and 1-h dead dry fuel load as independent variables (r2= 0.80). These models were used to develop a new fire behavior software, the “Eucalyptus Fire Safety System”.
id UFLA_b3fb406e0114cf4615d9c048f356233e
oai_identifier_str oai:localhost:1/14019
network_acronym_str UFLA
network_name_str Repositório Institucional da UFLA
repository_id_str
spelling Empirical models for describing fire behavior in Brazilian commercial eucalypt plantationsModelos matemáticos empíricos para descrever o comportamento do fogo em plantações comerciais de eucalipto no BrasilForest firesForest protectionFire simulationIncêndios florestaisProteção florestalSimulação do fogoModeling forest fire behavior is an important task that can be used to assist in fire prevention and suppression operations. However, according to previous studies, the existing common worldwide fire behavior models used do not correctly estimate the fire behavior in Brazilian commercial hybrid eucalypt plantations. Therefore, this study aims to build new empirical models to predict the fire rate of spread, flame length and fuel consumption for such vegetation. To meet these objectives, 105 laboratory experimental burns were done, where the main fuel characteristics and weather variables that influence fire behavior were controlled and/or measured in each experiment. Dependent and independent variables were fitted through multiple regression analysis. The fire rate of spread proposed model is based on the wind speed, fuel bed bulk density and 1-h dead fuel moisture content (r2 = 0.86); the flame length model is based on the fuel bed depth, 1-h dead fuel moisture content and wind speed (r2 = 0.72); the fuel consumption proposed model has the 1-h dead fuel moisture, fuel bed bulk density and 1-h dead dry fuel load as independent variables (r2= 0.80). These models were used to develop a new fire behavior software, the “Eucalyptus Fire Safety System”.A modelagem do comportamento do fogo consiste em uma importante tarefa que pode ser utilizada para atividades de prevenção e combate. Entretanto, com base em estudos anteriores, os modelos comumente utilizados em outros países não o estimam corretamente nos plantios de eucalipto híbrido no Brasil. Sendo assim, este estudo teve por objetivo construir novos modelos empíricos para estimar a velocidade de propagação, comprimento das chamas e consumo do material combustível para o fogo dentro da respectiva vegetação em questão. Para tal, 105 queimas laboratoriais foram realizadas em que as principais características meteorológicas e do material combustível que poderiam interferir no comportamento do fogo foram controladas e/ou medidas. Variáveis dependentes e independentes foram correlacionadas por meio da regressão multivariada. O modelo para a velocidade de propagação proposto baseou-se na velocidade do vento, densidade do leito e no teor de umidade do material combustível de 1h de timelag (r2 = 0,86); o modelo para o comprimento das chamas baseou-se na espessura do leito, no teor de umidade do material combustível de 1h de timelag e na velocidade do vento (r2 = 0,72); o modelo para o consumo do material combustível teve como variáveis independentes o teor de umidade do material combustível de 1h de timelag, a densidade do leito e a carga do material combustível de 1h de timelag (r2 = 0,80). Os modelos construídos serviram de base para o desenvolvimento do software “Eucalyptus Fire Safety System”.Universidade Federal de Lavras (UFLA)2016-12-232017-08-01T20:13:19Z2017-08-01T20:13:19Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfWHITE, B. L. A. et al. Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations. CERNE, Lavras, v. 22, n. 4, p. 397-406, 2016. DOI: 10.1590/01047760201622042227.http://repositorio.ufla.br/jspui/handle/1/140192317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/1401/948Copyright (c) 2016 CERNEhttp://creativecommons.org/licenses/by/4.0/Attribution 4.0 Internationalinfo:eu-repo/semantics/openAccessWhite, Benjamin Leonardo AlvesWhite, Larissa Alves SecundoRibeiro, Genésio TâmaraSouza, Rosemeri Melo2021-08-30T00:27:41Zoai:localhost:1/14019Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-08-30T00:27:41Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations
Modelos matemáticos empíricos para descrever o comportamento do fogo em plantações comerciais de eucalipto no Brasil
title Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations
spellingShingle Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations
White, Benjamin Leonardo Alves
Forest fires
Forest protection
Fire simulation
Incêndios florestais
Proteção florestal
Simulação do fogo
title_short Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations
title_full Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations
title_fullStr Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations
title_full_unstemmed Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations
title_sort Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations
author White, Benjamin Leonardo Alves
author_facet White, Benjamin Leonardo Alves
White, Larissa Alves Secundo
Ribeiro, Genésio Tâmara
Souza, Rosemeri Melo
author_role author
author2 White, Larissa Alves Secundo
Ribeiro, Genésio Tâmara
Souza, Rosemeri Melo
author2_role author
author
author
dc.contributor.author.fl_str_mv White, Benjamin Leonardo Alves
White, Larissa Alves Secundo
Ribeiro, Genésio Tâmara
Souza, Rosemeri Melo
dc.subject.por.fl_str_mv Forest fires
Forest protection
Fire simulation
Incêndios florestais
Proteção florestal
Simulação do fogo
topic Forest fires
Forest protection
Fire simulation
Incêndios florestais
Proteção florestal
Simulação do fogo
description Modeling forest fire behavior is an important task that can be used to assist in fire prevention and suppression operations. However, according to previous studies, the existing common worldwide fire behavior models used do not correctly estimate the fire behavior in Brazilian commercial hybrid eucalypt plantations. Therefore, this study aims to build new empirical models to predict the fire rate of spread, flame length and fuel consumption for such vegetation. To meet these objectives, 105 laboratory experimental burns were done, where the main fuel characteristics and weather variables that influence fire behavior were controlled and/or measured in each experiment. Dependent and independent variables were fitted through multiple regression analysis. The fire rate of spread proposed model is based on the wind speed, fuel bed bulk density and 1-h dead fuel moisture content (r2 = 0.86); the flame length model is based on the fuel bed depth, 1-h dead fuel moisture content and wind speed (r2 = 0.72); the fuel consumption proposed model has the 1-h dead fuel moisture, fuel bed bulk density and 1-h dead dry fuel load as independent variables (r2= 0.80). These models were used to develop a new fire behavior software, the “Eucalyptus Fire Safety System”.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-23
2017-08-01T20:13:19Z
2017-08-01T20:13:19Z
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 WHITE, B. L. A. et al. Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations. CERNE, Lavras, v. 22, n. 4, p. 397-406, 2016. DOI: 10.1590/01047760201622042227.
http://repositorio.ufla.br/jspui/handle/1/14019
identifier_str_mv WHITE, B. L. A. et al. Empirical models for describing fire behavior in Brazilian commercial eucalypt plantations. CERNE, Lavras, v. 22, n. 4, p. 397-406, 2016. DOI: 10.1590/01047760201622042227.
url http://repositorio.ufla.br/jspui/handle/1/14019
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/1401/948
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
_version_ 1807835218233524224

Registros relacionados