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The on-line Nugget does not feature all the stories of our print edition. For all the news, subscribe here. ©
2002 The
contents of the on-line edition of The Nugget represent a selection
among the stories that appear in the weekly print edition. |
Crews
work to rehabilitate fire site
Fighting fire
can scar the landscape every bit as much as the blaze itself.
Bulldozers plow rings of fire
breaks through the woods, scraping up topsoil and leaving a cross-hatch
of dusty wounds on the forest floor. They push over trees, roll away huge
boulders and rip out brush.
Safety zones are scraped out
of the brush for 50 square yards -- utterly bare places where firefighters
can hunker down and let a firestorm pass over and around them.
It is necessary to damage
the forest in this way to save it.
Yet firefighters do not simply
walk away and leave the torn up scene when a fire is over.
Even as they work to mop up
the blaze itself, firefighters begin rehabilitating the ground.
Dozers and excavators pull
brush back over the swaths of the safety zones and equipment parking areas,
in an effort to hold down the soil that blows away at the slightest breeze.
The outside containment lines
are left alone as long as there is a need to keep the smoldering fire
in check. But inside the fire perimeter, crews pull berms back in over
the fire lines.
"The hope is that when you
pull those berms in, the seed that didn't burn will grow the next year,"
said Kris Hennings, who worked on the Cache Mountain fire rehabilitation
plan for the Sisters Ranger District.
Water bars made of logs and
rocks are put into place to prevent erosion. Especially on slopes, fire
lines can become runoff streams when the rain falls, creating streams
that carry away topsoil and leave still more ruinous scars.
Once berms are pulled back
and water bars are set, the key is to keep motorized traffic off the lines
so that they don't become de facto roads. Rehab crews pile up logs and
brush in spots to block lines of travel.
If they are successful in
their work, the fire lines fade into the forest in about five years or
so, Hennings said.
Attentive hikers or horseback
riders will notice that there are odd straight lines in the forest where
no trees grow, but the lines will be covered with grasses and shrubs.
"They do come back pretty
good," Hennings said.
The Sisters Ranger District
has formed a BAER team (Burned Area Emergency Rehab) to determine what
needs to be done to mitigate damage from the blaze itself.
Fortunately, according to
Hennings, the Cache Mountain fire is a "low-risk" fire -- one that does
not pose much of a threat to critical habitat or streambeds, to wildlife
and fish.
However, the BAER team will
still take a close look at the effects of the fire on plants, animals,
fish and hydrology. |
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