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Título: | Fuel management effectiveness in a mixed heathland A comparison of the effect of different treatment types on fire initiation risk |
Autor: | Marino, Eva; Hernando Lara, Carmen; Madrigal Olmo, Javier; Dez, C.; Guijarro Guzmán, Mercedes | Palabras clave: | Flammability Fuel reduction Galicia (north-western Spain) Prescribed burning Shrub clearing Shrubland |
Fecha de publicación: | 2012 | Editor: | CSIRO Publishing | Citación: | International Journal of Wildland Fire 21(8): 969-979 (2012) | Resumen: | Fuel management is commonly used to reduce fire risk in fire-prone shrubland, but information about the real efficacy of the different techniques is scarce. In this study, we assessed in the laboratory the effects of different treatment types on fire initiation risk in a mixed heathland. The effects of two mechanical treatments and of prescribed burning were compared with untreated vegetation. Flammability tests were performed in samples of the regenerated shrubs and fine ground fuels present 2 years after treatments. Results indicate that all treatments were effective in reducing fire initiation risk in regenerated shrubs, but not in fine ground fuels. Recovery of vegetation differed between treatments, and treatment type had a significant effect on flammability, mainly affecting fire sustainability. Wind speed had a minor effect on shrub fuel flammability, whereas fuel moisture had a significant effect. The flammability of fine ground fuels differed significantly depending on fuel moisture content, even at the low levels tested. Logistic models were fitted to predict successful fire sustainability, and the probability of initial propagation was obtained as a function of treatment type, fuel moisture content and fuel structural characteristics. This study provides new insights into wildfire prevention in shrubland, and compares the effectiveness of different fuel treatment techniques. Journal compilation. | URI: | http://hdl.handle.net/10261/292830 | DOI: | 10.1071/WF11111 | ISSN: | 1049-8001 | E-ISSN: | 1448-5516 |
Aparece en las colecciones: | (INIA) Artículos |
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