Some forest fires are beneficial because
they kill animals that are vicious predators
they prevent the spread of poison ivy
they allow forest plants to release their seeds
they erode soil that has been contaminated

they allow forest plants to release their seeds

Some forests fires are beneficial because some floral species exhibit fire adaptations which means that these species requires seeds to sprout. Species such as Pine, Eucalyptus, Banksia have cones or fruits which are sealed with resins. These cones and fruits can only open to release their seeds after the resin gets melted with fire.

high growth (apex)