Residual stand damage from cut-to-length thinning of second-growth timber in the Cascade range of western Oregon.

Residual stand damage was measured on 25 percent of an area that had been thinned with a cut-to-length logging system. Total damage (scar area) per acre was less than in any similar study in the Pacific Northwest, although 39.8 percent of the residual trees sustained some damage. Only 0.8 percent of the trees, however, sustained major damage. Western hemlock was more susceptible to damage than Douglas-fir. Most of the damage occurred within 15 feet (4.57 m) of a trail centerline and originated within 3 feet (0.91 m) of the groundline. Early summer logging may have resulted in a higher level of damaged trees than might occur during other seasons (.)