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Self-organized criticality in a forest-fire model

Author

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  • Drossel, B.
  • Schwabl, F.

Abstract

A forest-fire model is introduced which contains a lightning probability f. This leads to a self-organized critical state in the limit f→0 provided that the time scales of free growth and burning down of forest clusters are separated. We derive scaling laws and calculate all critical exponents. The values of the critical exponents are confirmed by computer simulations. For a two-dimensional system, there is evidence that the forest density in the critical state assumes its minimum possible value, i.e. that energy dissipation is maximum.

Suggested Citation

  • Drossel, B. & Schwabl, F., 1992. "Self-organized criticality in a forest-fire model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 191(1), pages 47-50.
    • Handle: RePEc:eee:phsmap:v:191:y:1992:i:1:p:47-50
    DOI: 10.1016/0378-4371(92)90504-J
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