Forest fire
Estimated number of fires and acres burned
in the North Central Region from 1984-1995:
Although fires cost
money to control, endanger lives, and damage property, periodic fires
have benefits to natural systems:
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Fire bares
mineral soil. Such bare mineral soil is needed by some plant species
for their seeds to germinate. Also, some types of seeds need to be
heated to high temperatures in order to sprout. Fires also release
nutrients as they burn and this has a fertilization effect, allowing
vigorous plant regrowth. |
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| Fire impacts
succession and helps to maintain the proper habitat conditions for
early successional plant species. Grasses, wildflowers, berry plants
like blueberries, and tree species like oaks and pines benefit from
periodic fires. |
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Fire also helps
to maintain appropriate habitat for animals associated with the
fire-dependent plant species. For example, the endangered Kirtland's
Warbler found in Michigan can only survive in the type of young pine
ecosystem that is the result of a major disturbance like fire. Once
the trees are about 10- 15 years old, the habitat is no longer
usable by the birds and they must find a different recently burned
area. |
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can move fairly easily out of an area that is burning and find
shelter in the surrounding ecosystems. They often move back into the
burned area to feed on the abundant grasses and other plants that
spring up soon after a fire. |
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Periodic fires
are beneficial because they burn up the dead plant material on the
forest floor. When fires are prevented and do not occur for long
periods of time, the large amounts of fuel accumulated on the forest
floor lead to very dangerous conditions. Any fire that accidentally
starts will likely be much larger and hotter than would be the case
if only low amounts of fuel were present on the forest floor.
Therefore, frequent small fires greatly reduce the possibility of
large disastrous fires. |
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