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Publication
Efeito da Gestão de Combustíveis e da Composição Florestal no Comportamento do Fogo
| Name: | Description: | Size: | Format: | |
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| 3.12 MB | Adobe PDF |
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Abstract(s)
Em Portugal, as Faixas de Gestão de Combustível são um dos meios de prevenção e contenção de incêndios previstos na legislação. No entanto, as medidas e normas que as regulam carecem de validação científica que avalie a sua eficácia. Este estudo tem como objetivos avaliar o efeito da gestão de combustíveis nestas faixas e o efeito do tipo de povoamento, no comportamento do fogo de superfície. Foram amostrados trinta pares de Áreas Geridas vs Áreas Não Geridas, distribuídos pela Região Centro de Portugal, em povoamento de eucalipto, pinheiro-bravo e mistos de eucalipto/pinheiro-bravo e eucalipto/acácia. Os dados recolhidos em campo, incluindo dados micrometeorológicos, foram utilizados para realizar simulações de comportamento de fogo de superfície. Os resultados mostram que não existem diferenças estatisticamente significativas no comportamento do fogo de superfície entre os dois tipos de áreas, nem entre tipos de povoamentos. No entanto, na interpretação destes resultados deve ter-se em conta que este estudo avalia apenas fogo de superfície. No futuro, este estudo poderá ser melhorado pela inclusão do estudo de fogo de copas e pela inclusão de cenários meteorológicos mais severos.
In Portugal, Fuel Breaks are one of the ways of prevention and containment of wildfires present in legislation. However, the measures and standards that regulate them lack scientific validation to assess their effectiveness. This study aims to evaluate the effect of fuel management of Fuel Breaks and the effect of forest type, on surface fire behavior. Thirty pairs of Managed Areas vs. Non-Managed Areas were sampled, distributed throughout the Central Region of Portugal, in eucalyptus stands, maritime pine stands and mixed stands of eucalyptus/maritime pine and eucalyptus/acacia. Field data, including micrometeorological information, were used to perform surface fire behavior simulations. The results show that there are no statistically significant differences on surface fire behavior between the two types of areas, nor between types of stands. However, it should be taken into consideration that this study only assesses surface fire. In the future, this study could be improved by including canopy fire study and more severe weather scenarios.
In Portugal, Fuel Breaks are one of the ways of prevention and containment of wildfires present in legislation. However, the measures and standards that regulate them lack scientific validation to assess their effectiveness. This study aims to evaluate the effect of fuel management of Fuel Breaks and the effect of forest type, on surface fire behavior. Thirty pairs of Managed Areas vs. Non-Managed Areas were sampled, distributed throughout the Central Region of Portugal, in eucalyptus stands, maritime pine stands and mixed stands of eucalyptus/maritime pine and eucalyptus/acacia. Field data, including micrometeorological information, were used to perform surface fire behavior simulations. The results show that there are no statistically significant differences on surface fire behavior between the two types of areas, nor between types of stands. However, it should be taken into consideration that this study only assesses surface fire. In the future, this study could be improved by including canopy fire study and more severe weather scenarios.
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Keywords
Comportamento do Fogo Gestão de Combustível Modelos de Combustível