Quantitative study to identify the fuel properties that determine propagation success under conditions of nil slope and nil wind
2019
The reduction of the fuel load represents certainly the best approach in order to reduce fire hazard in Mediterranean regions. For many reasons (low impacts on the ecosystems, low costs …), the prescribed burning constitutes a very good tool to achieve this objective. To be efficient and safe, prescribed burning must be conducted under windless and backing fire conditions. The generalization of this practice needs necessary the redaction of a guideline on which are defined the optimal conditions in terms of external conditions (weather, slope, design of the operation) and state of the vegetation (mainly the fuel moisture content). The aim of this work is to highlight that a closed simplified physical fire spread model can provide an accurate assessment of the rate of a fire spread, but also realistic estimates of these optimal fuel properties. The present study is focused on moisture content and fuel depth.
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