Effects of Selection Logging on Deer Habitat in Southeast Alaska: A Retrospective Study. Final Research Performance Report, 1 July 1994-30 June 1998

摘要

We studied 43 sites in Southeast Alaska that were selectively logged between 1899 and 1946 (median cutting date = 1923). Logging removed, on average, 46% of the basal area (s=26.8) and 5 trees from each plot. We measured the size and mapped the location of all trees, snags, and down logs in each plot, measured stem density and mapped ground cover of all shrub species, and used allometric regressions to compute shrub biomass. The authors clipped and weighted all herb-layer plants rooted in fixed plots to compute their biomass. Overstory canopy cover was measured from photographs.