. Levels-of-growing-stock cooperative study in douglas-fir : report no. 11--Stampede Creek : a 20-year progress report. . (inches) Figure 22—Cumulative volume distribution curves showing volumes in trees larger than indi- cated diameters, treatments 2, 4, 6, and 8 and the unthinned control. Values are 1988 live stand plus previous thinnings, omitting calibration cut. 70 -i aT 60 - M U S e © 50 - 8 O 40 - 30 —i 1— 80 100 120 140 160 180 —I— 200 220 240 Basal area before thinning (ftVacre) Figure 23—Live crown length of 40 largest trees per acre in relation to basal area at end of growth p

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. Levels-of-growing-stock cooperative study in douglas-fir : report no. 11--Stampede Creek : a 20-year progress report. . (inches) Figure 22—Cumulative volume distribution curves showing volumes in trees larger than indi- cated diameters, treatments 2, 4, 6, and 8 and the unthinned control. Values are 1988 live stand plus previous thinnings, omitting calibration cut. 70 -i aT 60 - M U S e © 50 - 8 O 40 - 30 —i 1— 80 100 120 140 160 180 —I— 200 220 240 Basal area before thinning (ftVacre) Figure 23—Live crown length of 40 largest trees per acre in relation to basal area at end of growth period, 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 Curtis, Robert O. cn; Pacific Northwest Research Station (Portland, Or. ) cn. Portland, Or. : U. S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station

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