Forest Fire Percolation

Drossel-Schwabl forest fire model: trees grow with probability p, lightning strikes with probability f. At the right p/f ratio, self-organized criticality emerges — fire sizes follow a power law, and the system tunes itself to the critical point.

Statistics
Trees: 0
Burning: 0
Step: 0
p/f ratio: 50
SOC at p/f ≈ 50-200
Fire Size Distribution
log-log: power law = straight line
Legend
■ Empty
■ Young tree
■ Old tree
■ Burning
■ Ember
■ Ash