These photographs accompany a Missoulian article on a vegetation management project on the Lolo National Forest in Missoula’s WUI, showing trees (ponderosa pines?) marked for removal. Most of the purpose and need is related to reducing fire risk, but there is also an assertion that these marked trees are ecologically inappropriate. Here is what the decision notice says:
While ecological restoration and resiliency are embedded in WAM, the MCCWPP, Forest Service policy, and the National Cohesive Strategy, there is less agreement from the Missoula community about restoration as the sole basis for wildfire risk reduction fuel treatments. This debate about restoration has been ongoing for many years, as the wildfire hazard and risk to our community continues to increase. As the District Ranger, I considered this challenge and while the purpose and need focuses on fuel treatments to reduce hazard and risk, the project also meets ecological objectives to create resilient ecosystems. Both objectives are met through the actions included in the Selected Action and this decision and are designed to achieve the following restoration and resilience strategies:
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Reduce surface and ladder fuels; increase crown base heights
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Reduce and maintain lower tree densities; decrease crown bulk density
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Increase composition of fire and drought-tolerant species (ponderosa pine and western larch
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Increase mean diameter and individual tree vigor by retaining large trees with healthy crowns
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Conserve existing species and genetic diversity
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Restore horizontal spatial heterogeneity of forest structure, including openings where early-seral species can establish
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Reintroduce fire to reduce fuel loads, stimulate understory species, and maintain desired fuel beds
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Reduce/maintain appropriate levels of pathogens, insects, and other disturbances in order to create decadence, mortality, and interactions with fire that lead to regeneration of new tree cohorts and diverse understories
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Monitor key processes including mortality, regeneration, growth, fuel accumulation and new species colonization to inform management if the project is meeting objectives to reduce hazard and risk and create resilient ecosystems.
Make sense? Both objectives met? (Note that board feet is not mentioned here.) To me this kind of captures the debate about when is it necessary to remove the overstory to provide fuel reduction, which is going to be the “mature” trees that many would like to save. Should we be striving for historical conditions, or less density than that because there are houses nearby, in which case I would say the ecological goal is not being met? Keeping in mind that the “natural range of variation” is a requirement for ecosystems, not projects, I hope the forest plan identifies areas where risk reduction outweighs restoration as a desired outcome (purpose and need) of projects. And that the NRV for ecosystems takes into consideration the areas that won’t have that desired condition.







