
Wildfire is a powerful force of nature, as natural as rain, wind, and lightning. A
burning issue in forestry is whether to let some fires blaze. What do YOU think?
Read on, then share your opinion on the talk board.
Wildfires normally burn through forests every 5 to 25 years. These fires breeze
through quickly and do little permanent damage. Without occasional natural fires,
the forest becomes the stage for a raging inferno. Thats because an unnaturally
large amount of fuelfallen branches, leaves, and other debris accumulates after
years without natural fire.
There are other benefits to regular small fires. They speed up the process of
recycling dead plant material into nutrients for the soil. Many kinds of pines
have cones that only fire can pop open, releasing the seeds inside. Prairie
grasses have buds underground that spring up quickly after a fire. All this
new growth is food for wildlife.
Because regular small fires can keep ecosystems healthy and prevent more serious
fires, they are sometimes prescribed. Forest managers allow them to burn, or
even deliberately set them, in parts of the United States. The right amount of
fire is as essential as the right amount of rainfall and sunlight, says Sharon
Hermann, a fire ecologist in Florida.
In other parts of the U.S., however, and especially in neighborhoods that border
wildlands, many people view any fire as bad. They put them out. Often they resist
prescribed burning, arguing that heavy smoke from fires causes air pollution and
health problems and that the danger of a prescribed fire getting out of control
and burning homes is too great.
To learn more, read Fire! in the August 1997 issue of WORLD magazine.
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