Today, some wildland fires are allowed to burn, and some fires are ignited by trained fire specialists. Fires started by professionals are termed management ignited prescribed fires. Fires started by other forces such as lightning are called prescribed natural fires if managing agencies determine before the blaze ignites that fire is desirable in that specific ecosystem. A prescribed fire is any fire that helps attain management goals for a particular area. Before a fire is set or allowed to burn, weather conditions are assessed for likelihood of the fire burning out of control.
Many conditions can affect the size and intensity of a fire.
Winds, soil and fuel moisture content, and slope of the land are a few factors that influence fire behavior. These factors are weighed carefully before decisions are made about whether to start a burn or allow an already burning fire to continue. Explain some possible positive and negative effects of wildfires. Butcher paper, pencils, markers, crayons. Wildland fires occur in and influence nearly all terrestrial ecosystems in North America.