Original sentence: Although such fires have been occuring sporadically for 100million years, and are part of the natural ecological rythym of forests, frequent and small 'natural' ground fires do prevent the accumulation of fuel and allow large, slow-growing vegetation (e.Another reason was to respond to misplaced criticism from wildfire experts, and to distinguish 'bad' intentional or accidental wildfires from the needs of sustainable forests via natural 'good' fire ecology.Decades of fire suppression and lack of indigenous fire ecology can contribute to dense forests with a lot of understory "fuel", and many dead standing trees.Periodic low-intensity wildfires are also an integral component of certain ecosystems that evolved to take advantage of natural fires, such as Douglas Fir, chaparral and closed-cone pine forest habitats, which need fire for cones to open and seeds to sprout, and germinate and grow better in open burn sites
Edited sentence: Another reason was to respond to the criticism and to distinguish 'bad' intentional or accidental wildfires from the needs of sustainable forests via natural 'good' fire ecology.Examples are chaparral and closed-cone pine forest habitats, which need fire for cones to open and seeds to sprout.Frequent and small 'natural' ground fires prevent the accumulation of fuel and allow large, slow-growing vegetation (e.Periodic low-intensity wildfires are an integral component of certain ecosystems that evolved to depend on natural fires for vitality, rejuvenation and regeneration.The Smokey Bear campaign has been criticized by wildfire policy experts in cases where decades of fire suppression and the indigenous fire ecology were not taken into consideration, contributing to unnaturally dense forests with too much "fuel" or too many dead standing and downed trees, brush and shrubs.When a brushland, woodland, or forested area is not affected by fire for a long period, large quantities of flammable leaves, branches and other organic matter tend to accumulate on the forest floor and above in brush thickets