. 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. 20 16 12 8 4 0 Douglas-fir w 20 0) oJ 16 E 1 12 0) £ 8 5 4 ci 0 Western hemlock D0.9 UT 00.9 1/3 T 10.9 1/2 T |1.4 UT 01.4 1/3 T 11.4 1/2 T Douglas-fir/ western hemlock. 1974 1975 1981 1984 Year Figure 20—Average diameters of Douglas-fir, western hemlock, and the two species combined, by age and treatment (initial sp
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. 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. 20 16 12 8 4 0 Douglas-fir w 20 0) oJ 16 E 1 12 0) £ 8 5 4 ci 0 Western hemlock D0.9 UT 00.9 1/3 T 10.9 1/2 T |1.4 UT 01.4 1/3 T 11.4 1/2 T Douglas-fir/ western hemlock. 1974 1975 1981 1984 Year Figure 20—Average diameters of Douglas-fir, western hemlock, and the two species combined, by age and treatment (initial spacing and thinning), in the mixed Douglas-fir/western hemlock rectangularity trial plots that were thinned at age 10. UT = unthinned; 1 /3 T = every third row cut; and 112 T = every second row cut. 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 work.. 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