. Potential production in thinned Douglas-fir plantations. Douglas fir; Forests and forestry Mensuration; Forest thinning. top int. Pa. ft. 7-inch top 40 Total cu. ft. see figure 1 for code -J 180 80 100 120 140 SITE INDEX 160 Figure 2.—Age at culmination of mean production. Numbers indicate top diameter outside bark. 6. 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 Bruce, David, 1916-; Pacific Northwest


. Potential production in thinned Douglas-fir plantations. Douglas fir; Forests and forestry Mensuration; Forest thinning. top int. Pa. ft. 7-inch top 40 Total cu. ft. see figure 1 for code -J 180 80 100 120 140 SITE INDEX 160 Figure 2.—Age at culmination of mean production. Numbers indicate top diameter outside bark. 6. 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 Bruce, David, 1916-; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ). Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture


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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectdouglasfir