The Pinkerton Mountain study area (53O 38' N, 121O 25' W) is located in the Cariboo Mountains approximately 90 km ESE of Prince George, B.C., in the wet cold subzone of the Engelmann Spruce-Subalpine Fir Zone (ESSFwc). The mesic to subhygric site is on a moderate, southwest-facing slope between 1350 and 1475 m elevation. It is located in an area zoned as "Caribou Medium", in which forestry practices must be consistent with maintaining habitat for mountain caribou.
The preharvest stand was uneven-aged, with trees up to 350 years old. It was composed of subalpine fir (Abies lasiocarpa) (78%) and Engelmann spruce (Picea engelmannii). The shrub layer was dominated by Rhododendron albiflorum, Vaccinium ovalifolium, and V. membranaceum, and the herb layer by Valeriana sitchensis, Veratrum viride, Rubus pedatus, and Gymnocarpium dryopteris, and the bryophyte layer by Brachythecium spp. and Rhizomnium glabrescens. Major epiphytes are Bryoria spp., Alectoria sarmentosa, and a variety of foliose lichens.
The Pinkerton Mountain site comprises three treatment units: group selection, single-tree selection, and unlogged control. Harvesting took place in March-April 1998.
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