. 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. 140 120 100 80 60 40 20 0 Western redcedar, 49-tree plots Western hemlock, 49-tree plots 10 15 20 25 0 Age (years) Figure 8âRatio of height to (H-to-D ratio) for trees of average height and , by age and by spacing, of Douglas-fir in the 49-tree- plot and trials and of western redcedar and wes
. 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. 140 120 100 80 60 40 20 0 Western redcedar, 49-tree plots Western hemlock, 49-tree plots 10 15 20 25 0 Age (years) Figure 8âRatio of height to (H-to-D ratio) for trees of average height and , by age and by spacing, of Douglas-fir in the 49-tree- plot and trials and of western redcedar and western hem- lock in the 49-tree-plot trial. 10 15 20 25 Douglas-fir, 49-tree plots .0 Spacing, meters â u S c o o r .0 Western redcedar, 49-tree plots Western hemlock, 49-tree plots 5 10 15 20 25 0 5 Age (years) Figure 9aâAverage crown width, by age and by spacing, for Douglas-fir, western redcedar, and western hemlock in the 49-tree- plot trial. 10 15 20 25. 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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