Estimation of the surface area-to-volume ratios of litter components of the Brazilian rainforest and their impact on litter fire rate of spread and flammability

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorNational Institute for Space Research (INPE)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorBufacchi, Paulo-
Autor(es): dc.creatorSantos, José Carlos-
Autor(es): dc.creatorde Carvalho, João Andrade [UNESP]-
Autor(es): dc.creatorKrieger Filho, Guenther Carlos-
Data de aceite: dc.date.accessioned2022-02-22T00:25:30Z-
Data de disponibilização: dc.date.available2022-02-22T00:25:30Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s40430-020-02303-8-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/198782-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/198782-
Descrição: dc.descriptionThe surface-area-to-volume ratio (SAV) is a significant parameter in vegetation description, although different researchers have presented diverging estimates for forest litter. However, considering litter as a unique entity and disregarding the SAV of its components provides a misleading fire rate of spread. Undoubtedly, the leaves are more relevant than the twigs for the rate of spread of surface fires, as the former has a higher SAV. Therefore, based on the proven hyperdominance of tree species in the Brazilian rainforest, this work presents an accurate method to estimate the SAV. Furthermore, it demonstrates the critical role played by the SAV in the litter flammability and fire rate of spread assessments and shows that the leaf moisture content does not influence its SAV. Besides, comparing SAV data using the methodology presented herein with other authors’ assessments, the results differ by up to 49%. Finally, using the Brazilian rainforest litter in the methodologies of two distinct authors showed a difference of at least 36% in the results. The primary outcome of this study is the estimation of the SAV of leaves and thin, medium, and thick twigs, representative of the Brazilian rainforest, at 12,680 m−1, 1360 m−1, 620 m−1, and 310 m−1, respectively. The estimated SAV values are essential input data to numerical simulation models, and for comparison purposes with other authors’ work, the litter SAV is 8460 m−1.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionLaboratory of Thermal and Environmental Engineering Department of Mechanical Engineering School of Engineering of the University of São Paulo, Av. Prof. Mello de Morais 2231-
Descrição: dc.descriptionCombustion and Propulsion Associated Laboratory National Institute for Space Research (INPE)-
Descrição: dc.descriptionDepartment of Energy São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Energy São Paulo State University (UNESP)-
Descrição: dc.descriptionFAPESP: 2008/04490-4-
Descrição: dc.descriptionFAPESP: 2011/20679-2-
Idioma: dc.languageen-
Relação: dc.relationJournal of the Brazilian Society of Mechanical Sciences and Engineering-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBrazilian rainforest-
Palavras-chave: dc.subjectFlammability-
Palavras-chave: dc.subjectLitter-
Palavras-chave: dc.subjectRate of spread-
Palavras-chave: dc.subjectSurface-area-to-volume-
Título: dc.titleEstimation of the surface area-to-volume ratios of litter components of the Brazilian rainforest and their impact on litter fire rate of spread and flammability-
Tipo de arquivo: dc.typelivro digital-
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