Key Findings: Efforts to produce resistant forests of more diversified age-classes will more likely succeed as the areas under management become larger.
Key Findings: Fir, the primary host of the budworm, is here to stay and while we may reduce its representation in our stands, it will always be sufficient to provide a food source for the budworm; silvicultural practices may reduce the losses from budworm attack, and can reduce the impact of the budworm on our total production by promoting rapid growth in new stands.
Problem Addressed: Differences in spatial pattern, species mingling, height differentiation, and relative stand complexity index (rSCI).
Goal(s)/Objective(s): To determine differences in spatial pattern, species mingling, height differentiation, and relative stand complexity index (rSCI) due to five treatments: commercial clear-cutting, fixed diameter-limit, 5 year single-tree selection, three-stage shelterwood (both with and without precommercial thinning), and unharvested natural areas.
Key Findings: Precommercial thinning in a shelterwood treated stand generally increased species mingling, height differentiation, and rSCI. Two untreated natural areas exhibited divergent pathways of structural development. Dynamics in uneven-aged selection treatments more closely resembled that of the untreated natural areas than did the shelterwood, commercial clearcut, or fixed diameter-limit treatments.