The recent Durango Herald article about the proposal for aggressive logging of Southwest Colorado Forests supported by the Rocky Mountain Restorative Initiative (RMRI) is a classic example of the Industrial Forestry worldview. https://durangoherald.com/articles/306885

The (RMRI) implies that trees killed by drought, beetles, or anything other than a chainsaw are somehow abnormal.  Not surprisingly, the membership of this group is dominated by timber interests and timber allies.

A healthy forest ecosystem is one with significant tree mortality. Many species live in mortal fear of “green” forests since up to 2/3 of all wildlife depends on dead trees for some portion of their life cycle.

Unfortunately, the RMRI appears unaware of recent science that finds all massive wildfires occur under extreme fire weather conditions of drought, high temperatures, low humidity, and high winds. In other words, climate/weather, not fuels, drives large blazes; therefore, logging will not reduce high severity blazes.

The idea that logging will “restore” the forest ignores the multiple impacts of biomass removal, loss of carbon storage, loss of wildlife habitat, sedimentation in streams from logging roads, the spread of weeds, and all the other ecological impacts associated with any logging proposal. If this is “restoration” we could use a lot less of it.

Indeed, there is even evidence that logging increases the occurrence of high severity blazes. For example, a study that reviewed 1500 wildfires across the West found that the highest severity blazes were in “actively managed” forests, while protected landscapes like wilderness and parks had the smallest amount of high severity fires.

Recent studies do not support the RMRI assertion that low-severity fires are the “norm.” For instance, in the Colorado Front Range, 80% of the fires in higher elevation ponderosa pine are high severity.

Another study of the San Juan Mountains historical fire occurrence concluded that fire-resistant ponderosa pine forests with low density covered only the lower 15-24% of the local forests. Furthermore, the author found that even in these pine forests, mixed- to high-severity fires also occurred.

The majority of all fires remain small and often self-extinguish. In other words, we don’t need to worry about these fires because they don’t amount to a hill of beans.

On the other hand, under extreme fire weather conditions, even ponderosa pine forests will burn at high severity. Higher elevation mixed conifer forests are also more likely to burn at high severity.

A study by the Missoula Fire lab is representative of the scientific consensus “The majority of acreage burned by wildfire in the US occurs in very few wildfires under extreme conditions. Under these extreme conditions, suppression efforts are  largely ineffective.”

A review by the Congressional Research Service had similar conclusions. “From a quantitative perspective, the CRS study indicates a very weak relationship between acres logged and the extent and severity of forest fires. … the data indicate that fewer acres burned in areas where logging activity was limited.”

A letter to Congress signed by more than 240 scientists concluded, “Thinning is most often proposed to reduce fire risk and lower fire intensity…However, as the climate changes, most of our fires will occur during extreme fire-weather (high winds and temperatures, low humidity, low vegetation moisture). These fires, like the ones burning in the West this summer, will affect large landscapes, regardless of thinning, and, in some cases, burn hundreds or thousands of acres in just a few days.”

Plus the scientists concluded with this warning: “Thinning large trees, including overstory trees in a stand, can increase the rate of fire spread by opening up the forest to increased wind velocity, damage soils, introduce invasive species that increase flammable understory vegetation, and impact wildlife habitat.”

What these and many other studies suggest is that the RMRI proposal to “thin (a euphemism for logging) and burn 750,000 acres of the San Juan Forest is unlikely to achieve the results being promoted. The conclusion of many scientists is that active management may make blazes more likely and more severe.

San Juan Mountains

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About The Author

George Wuerthner

George Wuerthner is an ecologist and former hunting guide with a degree in wildlife biology

3 Responses to Rocky Mountain Restorative Initiative Logging Trojan Horse

  1. avatar Bruce Bowen says:

    As I watch Australia get incinerated in an unprecedented weather driven fire event I find it difficult to make a comment on the stupidity of our executive branch and their milk toast followers. Save maybe the following quote from William James.

    “The deadliest enemies of nations are not their foreign foes; they always dwell within their borders. And from these internal enemies civilization is always in need of being saved. The nation blessed above all nations is she in whom the civic genius of the people does the saving day by day, by acts without external picturesqueness ; by speaking, writing, by good temper between parties; by the people knowing true men when they see them, and preferring them as leaders to rabid partisans or empty quacks”.

    The futility of facts of science. It is not enough to show our leaders the “nails” of science- we have to drive them into their wooden heads.

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‎"At some point we must draw a line across the ground of our home and our being, drive a spear into the land and say to the bulldozers, earthmovers, government and corporations, “thus far and no further.” If we do not, we shall later feel, instead of pride, the regret of Thoreau, that good but overly-bookish man, who wrote, near the end of his life, “If I repent of anything it is likely to be my good behaviour."

~ Edward Abbey

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