Song WG, Fan WC, Wang BH (2002) Influences of finite-size effects on the self-organized criticality of forest-fire model. Chinese Science Bulletin 47(3), 177-180. [In English]
Web link: http://dx.doi.org/10.1360/02tb9042
Keywords:
forest-fire model; self-organized criticality; cellular automata; finite-size effects; critical-behavior; immune trees;
Abstract: The Influences of finite-size effects on the self-organized criticality (SOC) of the traditional forest-fire model are Investigated by means of a new method. The forest size is originally set to a value much greater than the correlation length of the forest. Finite-size effects are then studied by equally dividing the forest into more and more separate subsystems on condition that the forest size, Igniting prob ability and planting probability are invariant. A new phenomenon, Le. the finite-size effects with one-side frequency peak, is observed. The boundary between two neighboring subsystems can be regarded as a firebreak. The concept of 'separation ability' Is Introduced to represent the probability for the firebreak to block off the fire successfully. Restraining effects of separation ability on finite-size effects are analyzed. Finite-size effects and separation ability, as well as their relations are found to have practical importance to the actual forest-fire protection.
