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Flathead National Forest/Coram Experimental Forest - Treatments

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Management Goals & Treatments

A team of natural resource specialists from the Flathead National Forest/Coram Experimental Forest and regional scientists participated in a three-day workshop in June 2016 to develop the ASCC treatments for the site. The team developed a set of management objectives, desired future conditions, and silvicultural tactics for each adaptation option:

Resistance

maintain relatively unchanged conditions over time

Management Goals: 

  • Maintain pre-treatment species composition and structure of western larch and mixed conifer, but with slightly decreased representation of shade-intolerant species

  • Sustain vigor of existing desirable trees

  • Maintain fire-resistant trees with thick bark, high crowns, and low canopy bulk density

  • Maintain low surface fuels

  • Maintain tree health with low incidence of insects and diseases

Strategies & Approaches: 

  • Uniform thin of retaining shade-intolerant conifer species to 75-85 ft2/acre

  • Favor western larch retention

  • Reduce ladder fuels and burn slash piles 

Resilience

allow some change in current conditions, but encourage eventual return to original conditions

Management Goals: 

  • Increase proportion and development of long-lived, fire-adapted species

  • Maintain genetic diversity via large diameter, long-lived trees and planting tree improvement seed

  • Enhance spatial and structural heterogeneity

  • Maintain high productivity and supply of wood products at regular intervals

  • Promote development of large-diameter, long-lived trees to promote old-growth characteristics

  • Reduce hazard of crown fire

  • Maintain low surface fuels

  • Maintain low levels of insects and diseases

  • Maintain and improve forage production

Strategies & Approaches: 

  • Use group selection to create 2-4 acre openings with feathered edges, retaining 6-8 seed tree clumps per acre in openings, favoring retention of western larch and western white pine

  • Uniform thinning to 75-85 ft2/acre in the matrix 

  • Plant western larch and western white pine in group openings (2-4 acre)

  • Slash and/or remove damaged trees to facilitate site preparation

  • Reduce ladder fuels and burn slash piles

Transition

actively facilitate change to encourage adaptive responses

Management Goals: 

  • Increase proportion and development of the most fire-adapted and drought-tolerant species and genotypes (30% western larch, 25% western white pine, 35% ponderosa pine, and 10% other (i.e. Douglas-fir, aspen, paper birch))

  • Enhance spatial and structural heterogeneity

  • Maintain high productivity and supply of timber products at regular intervals

  • Promote development of large-diameter long-lived trees (average 10-16 trees per acre) in clumps with scattered trees

  • Maintain low level of insects and diseases

  • Reduce hazard of crown fire and spread by reducing ladder fuels

  • Maintain low surface fuels

  • Maintain and improve forage production

Strategies & Approaches: 

  • Seed tree cut with reserves, leaving 6-8 scattered seed tree clumps of western larch and western white pine per acre

  • Plant tree improvement seed of western larch, western white pine, and ponderosa pine (assisted range expansion, species not on site) from high, mid, and low elevations

  • Slash and/or remove damaged trees to facilitate site preparation

  • Reduce ladder fuels and burn slash piles