Prairie comes
from a French word meaning "extensive
meadow," a flat, treeless community
of grasses and forbs (flowering plants).
Because prairies grow in areas where long
periods without rainfall
are common, the plants have adapted
by developing intricate, interwoven
root systems that may extend nearly
20 feet below the surface.
Tall- grass prairies also adapted
to periodic burning and now depend
on fire for survival.
In the past, fires were started
naturally by lightening striking dry grasses
in the fall. The flat ground encouraged the
fires to spread over wide distances, burning
off shrubs and small trees, whose shade would
otherwise slowly kill off sun-loving plants.
Historical accounts tell us
that Native Americans set fire to prairies
every year to keep them open and grassy,
improving forage for bison and elk.
On Saturday, April 6, 2002 Ray Schulenberg
and David Kropp burned their recently
restored 3-acre prairie in Plainfield,
IL.
Many people, including
Ken Benson's horticulture class from
Triton College, were there to help.
People from Du Page county and volunteer naturalists
from various forest preserves also helped.
It was a
proper, prescribed burn. The weather,
temperature and humidity had to be "just so" and
they were.
Burning the prairie restores
its health and vigor by keeping out weeds
and adding a fast shot of nutrients to
the soil. A spring burn removes dead
plant litter, allowing the sun to more
easily warm the soil, encouraging new
growth.