Análise do comportamento do fogo em diferentes períodos e configurações da paisagem da freguesia de Deilão – Portugal

• Ano de defesa: 2011
• Autor(a) principal: Magalhães, Simone Rodrigues de
• Orientador(a): Ribeiro, Carlos Antônio Alvares Soares
• Banca de defesa: Azevedo, João Carlos Martins , Castro, José Manuel Correia dos Santos de, Ribeiro, Guido Assunção
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Ciência Florestal
• Departamento: Manejo Florestal; Meio Ambiente e Conservação da Natureza; Silvicultura; Tecnologia e Utilização de
• País: BR
• Palavras-chave em Português: Cadeia de Markov; Autômatos celulares; Ecologia da paisagem
• Palavras-chave em Inglês: Markov chain; Cellular automata; Landscape ecology
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::MANEJO FLORESTAL
• Link de acesso: http://locus.ufv.br/handle/123456789/3072

This study aimed to analyze the variation in fire behavior with changes in the landscape of the parish of Deilão through the structure and configuration of the landscape in the past and its projection into the future. The cards of use and land cover were the inputs for the projection of future landscape and analyze of fire behaviour. To predict the spatial distribution of soil use and occupation, we used the method that combines CA_Markov Markov models and Cellular Automata (CA), in the software IDRISI version Kilimanjaro. The landscape structure was quantified using landscape metrics calculated by software Fragstats version 3.3. The model FlamMap version 3 was used to analyze the behavior of fire in landscapes of the years 1958, 1968, 1980, 1992, 2006, 2020, 2032, 2044 and 2054. During the period analyzed the forest lands increased significantly, occupying most of the parish in the form of large contiguous areas. Agricultural areas and those occupied by shrubs tended to form small clusters. In general, the diversity of the landscape increased, but the dominance of forests in the future led to decrease in this parameter. The scenarios seen in Deilão indicate a tendency towards simplification of the landscape, which may facilitate the occurrence of larger and more serious fires. The analysis of results indicate a trend to increased fire danger in the region, possibly due to increased fuel by social changes and lack of forest management. If the management system is not modified, the intensity of fire and fire activity in the canopy may increase, causing serious damage to the region. On the other hand, if measures are taken to lessen the severity of the fires this scenario may be different.