| |
|
Compiled by AWR member group,
The Lands Council
WILDFIRES
AND LOGGING - FIFTEEN FACTS
-
Wildfires are to western ecosystems what rain is to a tropical rainforest.
They are necessary for the continued health and existence of these
ecosystem. Wildfires do anything but destroy a landscape. Indeed,
they are one of the major ecological forces that rejuvenate western
ecosystems. Without fire, there would be no old growth forests of
Ponderosa Pine and Western Larch. Wildfires cleanse the forest of
disease and insects. They thin forest stands. They recycle nutrients.
They create snags that are homes for thousands of species.
-
One timber industry advocate said, "I never saw a clearcut burn."
Nothing could be further from the truth. Of course clearcuts burn.
When long, hot summers dry out the grasses, brush, and logging wastes,
they can flare explosively. When they grow thick with closely packed
young trees, they present exactly the fire danger we are wrestling
with now. The logging roads provide human access that is the source
of the vast majority of forest fires. (from Dr. Thomas Power, University
of Montana, August 15, 2000)
-
Two good examples of how fires seek clearcuts and logging roads,
and ignore the moister old growth: the Raft River Fire on the Olympic
Peninsula, and the Sundance Fire, in North Idaho--both in 1967. In
the former, the fire literally raced from clearcut to clearcut down
the logging road, completely skipping the old growth in between. In
the latter (70,000 acres), the burned area was entirely in an area
laced with logging roads and logging scars, once again largely ignoring
the uncut areas.
-
In Western Montana, the fires are in are burning in the forests adjacent
to some of the rapidly growing residential areas in the nation, the
Bitterroot, Helena, and Clark Fork Valleys. At last count in Western
Montana over 75 percent of the burned acreage lies outside of protected
areas like National Parks and Wilderness. 96 percent of the firefighting
effort is focused on roaded and developed areas where human lives,
homes, and other structures are threatened. Spending tax dollars to
protect isolated cabins and homes built in the midst of fire-prone
landscapes is no different than building houses in the flood plains
of rivers or condos on hurricane prone Atlantic coast barrier islands.
-
Commercial logging does not remove dangerous fuel loads. Instead
it takes the largest, most valuable, and most fire resistant trees,
leaving behind a firetrap. Commercial logging is not a prescription
for forest health; it is one of the major causes of unhealthy forest
conditions. Old trees and old growth are resistant to fire.
-
Logging Isn't Needed on Our National Forests. A recent scientific
review team, led by Wenatchee Forest Service Research Station Scientists
Paul Hessburg and John Lemkuhl, has found that on dry sites (which
include much of the intermountain west), the use of prescribed fire
alone would restore tree stocking levels and can be implemented on
a broad range of cases without prior thinning.. Science Peer-Review
Summary of the Wenatchee National forest's Dry Forest Strategy, June
1999.
-
Will Logging Prevent or reduce fire risk? "Timber harvest, through
its effects on forest structure, local microclimate, and fuels accumulation,
has increased fire severity more than any other recent human activity."
-Sierra Nevada Ecosystem Project, 1996. Final Report to Congress.
-
"Logged areas generally showed a strong association with increased
rate of spread and flame length, thereby suggesting that tree harvesting
could affect the potential fire behavior within landscapes. In general,
rate of spread and flame length were positively correlated with the
proportion of area logged in the sample watersheds. "-Historical and
Current Forest Landscapes in Eastern Oregon and Washington. Part II:
Linking Vegetation Characteristics to Potential Fire Behavior and
Related Smoke Production (PNW-GTR-355)
-
"As a by-product of clearcutting, thinning, and other tree-removal
activities, activity fuels create both short- and long-term fire hazards
to ecosystems. The potential rate of spread and intensity of fires
associated with recently cut logging residues is high, especially
the first year or two as the material decays. High fire-behavior hazards
associated with the residues can extend, however, for many years depending
on the tree. Even though these hazards diminish, their influence on
fire behavior can linger for up to 30 years in the dry forest ecosystems
of eastern Washington and Oregon. "-Historical and Current Forest
Landscapes in Eastern Oregon and Washington. Part II: Linking Vegetation
Characteristics to Potential Fire Behavior and Related Smoke Production
(PNW-GTR-355)
-
"It appears significant that many large fires in the western United
States have burned almost exclusively in slash. Some of these fires
have stopped when they reached uncut timber; none has come to attention
that started in green timber and stopped when it reached a slash area."
-G.R. Fahnestock, 1968. "Fire hazard from pre-commercially thinning
ponderosa pine." U.S. Forest Service.
-
"Fire severity has generally increased and fire frequency has generally
decreased over the last 200 years. The primary causative factors behind
fire regime changes are effective fire prevention and suppression
strategies, selection and regeneration cutting, domestic livestock
grazing, and the introduction of exotic plants. "-Integrated Scientific
Assessment for Ecosystem Management in the Interior Columbia Basin
(PNW-GTR-382)
-
The high rate of human-caused fires has generally been associated
with high recreational use in areas of higher road densities. "An
Assessment of Ecosystem Components in the Interior Columbia Basin
and Portions of the Klamath and Great Basins-Volume II (PNW-GTR-405).
-
According to Reed Noss in the Road Rippers Handbook (1995), research
has shown that 78% of human-caused fires occurred within 265 feet
of a road and in New Jersey it was determined that 75% of all forest
fires were traced to roadsides. Other studies have estimated that
humans cause 90% of wildfires and that over half are started from
roadsides. (Noss, Reed F. 1995. The ecological effects of roads or
the road to destruction. The Road Ripper's Handbook. 1995 Edition.
Road Removal Implementation Project. Missoula, MT.)
-
The causes of wild fires are also widespread, including lightning
strikes,barbeque briquettes, ATV exhaust, chainsaws, and logging crews.
An exhaust pipe can start a fire. An automobile accident caused the
Hanford Reservation fire.
-
Fire retardants: preservation at a price. Over the past five years,
409,721 fires in the United States have burned 18,382,397 acres. An
annnual average of 15 million gallons of retardant have been used
to contain the blazes in the past 20 years. It is estimated that in
this fire season, a record year in which more than 4.3 million acres
have already burned, nearly 40 million gallons of retardant and an
unknown quantity of foam will be used.
Back to WILDFIRE!
Index
|