Forest Fires and Insects

Fire is a natural and beneficial part of forest ecosystems, but avoiding catastrophic fire risk is often used to justify preventive logging.  Ironically, however, according to the Sierra Nevada Ecosystem Project Final Report commissioned by Congress, “Timber harvest, through its effects on forest structure, local microclimate, and fuel accumulation, has increased fire severity more than any other recent human activity.”  The report advocates prescribed burning to rescue fire risk where necessary, stating that “prescribed burning has proven an effective tool to reduce fuel loads and fire hazards while restoring a process important for maintaining ecosystem functions.”

Clearcutting can change fire climate so that fires start more easily, spread faster, and burn hotter than they would under natural conditions.  The effect of these changes on the fire control problem is extremely important.  For each person required to control a surface fire in a mature stand burning under average conditions, 20 will be required if the area includes clearcuts.

Salvage logging is often recommended to remove trees from a forest where fire has occurred in order to preserve the maximum economic value of the timber.  But 50 scientists, in an open letter to President Clinton, dated September 19, 1994, stated that, “Because salvage logging removes natural fire breaks, it homogenizes the landscape and  increases susceptibility to catastrophic fires and insect outbreaks.”

Insects also play an important role in forest ecosystems, as a food source, by helping create nesting cavities for birds and through recycling organic matter in the soil.  Yet former Forest Service Chief Jack Ward Thomas, in testimony before the Senate Subcommittee on Agricultural Research, Conservation, Forestry and General Legislation on August 29, 1994, acknowledged that: 1) the Forest Service logs in insect infested stands not to protect the ecology of the area, but to remove trees before their timber commodity value is reduced by the insects; and 2) that the Forest Service fights forest fires to maintain high timber commodity value of stands, not to protect forest ecosystems.
The Payette National Forest in Idaho logged 10,000 acres under the guise of  “salvage logging,” claiming that those forests were “dying” from insect infestations. However, they left test plots of a few hundred trees - which were still alive more than a year after the logging occurred.  Ms. Julie Weatherby, a Forest Service entomologist, wrote a memo to the Forest Supervisor, embarrassed to report that the trees were not dying.  She correctly surmised that the still-living trees were a political liability, and would call into suspicion their earlier “salvage logging” operations.

The passage of a salvage logging amendment to a fiscal year 1995 Interior Appropriations  bill was a dramatic example of Congress, the timber industry, and the Forest Service working to increase the amount of logging on National Forests under the guise of  restoring forest health.  The bill purported to be responding to a “forest health crisis” that included fire risk and insect infestation, but in the letter to President Clinton mentioned above, more than 50 forest experts from across the United States disputed that claim. The salvage rider expressly overrode virtually all existing federal environmental
laws.  Language was included that restricted judicial remedies and prevented citizens from gaining relief in court.  Under the salvage rider, tens of thousands of acres of healthy  forest were logged, threatening water supplies, endangering protected species, causing soil erosion and imperiling communities that depended on fishing and recreation.  Perhaps the most serious consequence for communities was that the increased logging also led to increased flooding and mudslides.
 


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