. Development over 25 years of Douglas-fir, western hemlock, and western redcedar planted at various spacings on a very good site in British Columbia. Douglas fir British Columbia; Western hemlock British Columbia; Western redcedar British Columbia; Tree planting British Columbia. As in the other trials, height at age 20 appeared to be little affected by spacing. Average heights of Douglas-fir in Nelder-plot 2 were quite erratic on the inner seven arcs, where- as in Nelder-plot 1, heights were consistently depressed on these arcs (fig. 23). For arcs 8-16 (where spacings were wider than m)
. Development over 25 years of Douglas-fir, western hemlock, and western redcedar planted at various spacings on a very good site in British Columbia. Douglas fir British Columbia; Western hemlock British Columbia; Western redcedar British Columbia; Tree planting British Columbia. As in the other trials, height at age 20 appeared to be little affected by spacing. Average heights of Douglas-fir in Nelder-plot 2 were quite erratic on the inner seven arcs, where- as in Nelder-plot 1, heights were consistently depressed on these arcs (fig. 23). For arcs 8-16 (where spacings were wider than m) there was little difference in heights between the two Nelder plots; averages differed by only m or percent Height of cedar appeared to be depressed on the inner two or three arcs, but other than that there was no consistent relation between height and spacing for cedar, hemlock, or spruce. Heights for arcs 8-16 averaged m for Douglas-fir, m for hemlock, m for cedar, and m for Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Reukema, Donald L; Smith, J. Harry G; Pacific Northwest Research Station (Portland, Or. ). [Portland, Or. ] : U. S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
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