摘要: Plant species which have survived fires for tens of thousands years may not only selected survival mechanisms, but also inherent flammable properties that contribute to the perpetuation fire—dependent plant communities. This concept goes by beyond commonly accepted fire climate—fuel moisture basis wildland occurrence. communities be ignited accidentally or randomly, character burning is random. The following hypothesis treats this interaction between and ecosystem: Fire—dependent burn more readily than non—fire—dependent because natural selection has favored development characteristics make them flammable. was experimentally derived laboratory combustion tests with litter eucalyptus (Eucalyptus obliqua L'Herit), ponderosa pine (Pinus Laws.), tropical hardwood leaves.