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http://dx.doi.org/10.9709/JKSS.2013.22.2.101

A Simulation Model for the Study on the Forest Fire Pattern  

Song, Hark-Soo (국가수리과학 연구소 융복합수리과학부)
Jeon, Wonju (국가수리과학 연구소 융복합수리과학부)
Lee, Sang-Hee (국가수리과학 연구소 융복합수리과학부)
Abstract
Because forest fires are predicted to increase in severity and frequency under global climate change with important environmental implications, an understanding of fire dynamics is critical for mitigation of these negative effects. For the reason, researchers with different background, such as ecologists, physicists, and mathematical biologists, have developed the simulation models to mimic the forest fire spread patterns. In this study, we suggested a novel model considering the wind effect. Our theoretical forest was comprised of two different tree species with varying probabilities of transferring fire that were randomly distributed in space at densities ranging from 0.0 (low) to 1.0 (high). We then studied the distributional patterns of burnt trees using a two-dimensional stochastic cellular automata model with minimized local rules. We investigated the time, T, that the number of burnt trees reaches 25% of the whole trees for different values of the initial tree density, fire transition probability, and the degree of wind strength. Simulation results showed that the values of T decreased with the increase of tree density, and the wind effect decreased in the case of too high or low tree density. We believe that our model can be a useful tool to explore forest fire spreading patterns.
Keywords
Forest fire spreading speed; cellular automata; forest ecosystem;
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