The idea of setting forest or land on fire is an abhorrence to the essence of conservation. Yet, in some instances the land requires it. Even some seeds will not open to begin life unless it is heated to temperatures not achieved in sunlight.
The Forest Service (click here) manages prescribed fires and even some wildfires to benefit natural resources and reduce the risk of unwanted wildfires in the future. The agency also uses hand tools and machines to thin overgrown sites in preparation for the eventual return of fire.