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Título: | Spot fires Fuel bed flammability and capability of firebrands to ignite fuel beds |
Autor: | Ganteaume, A.; Lampin, Corinne; Guijarro Guzmán, Mercedes; Hernando Lara, Carmen; Jappiot, M.; Fonturbel, T.; Pérez-Gorostiaga, P.; Vega, J. A. | Palabras clave: | Ember Wildfire Spotting Ignition probability Flammability |
Fecha de publicación: | 2009 | Editor: | CSIRO Publishing | Citación: | International Journal of Wildland Fire 18(8): 951-969 (2009) | Resumen: | A series of tests were conducted under laboratory conditions to assess, first, the capacity of several fuel beds to be ignited by firebrands and to sustain a fire and, second, the capability of different types of firebrands to ignite fuel beds. Fuel beds and firebrands were selected among the most common in southern Europe. Regarding fuel bed flammability, results show that grasses are more flammable than litter and, among litters, Pinus species are the most flammable. The increase in bulk density and fuel moisture content involves an increase in the time to ignition, and a decrease in the other flammability parameters. The capability of firebrands to ignite fuel beds is higher when the firebrands drop in the flaming phase and with no air flow than in glowing phase with air flow. Logistic regression models to predict fuel bed ignition probability were developed. As a whole, results show a relationship between ignition probability of fuel bed and type or weight of firebrands. Pinus pinaster cone scale, P. halepensis cone scale, and Eucalyptus globulus leaf and bark can have ignition probabilities at least twice higher than pine bark when falling while in flaming combustion. © 2009 IAWF. | URI: | http://hdl.handle.net/10261/290227 | DOI: | 10.1071/WF07111 | ISSN: | 1049-8001 | E-ISSN: | 1448-5516 |
Aparece en las colecciones: | (INIA) Artículos |
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