. Levels-of-growing-stock cooperative study in douglas-fir. 10,000r A. Skykomish, age 42 8,000 £ 6,000 o w 4,000 c o 2,000 3 P - n Fixed treatments Increasing treatments Q. O E 10,000 3 O > 8,000 o (0 6,000 3 E 3 o 4,000 2,000 •I 5 J - mi r B. Hoskins, age 36 Decreasing treatments n — !' ^ — i7 ''i ui 111 H ll I Cumulative volume in trees: -| + inches - 76 >- - C. demons, age 36 JL i 9-6 + + + 1 3 5 7 2 4 Treatment Figure 35.—Volume production to end of fourth treatment period, by tree size classes: (A) Skykomish, age 42; (B) Hoskins, age 36; (C) demons, age 36; and
. Levels-of-growing-stock cooperative study in douglas-fir. 10,000r A. Skykomish, age 42 8,000 £ 6,000 o w 4,000 c o 2,000 3 P - n Fixed treatments Increasing treatments Q. O E 10,000 3 O > 8,000 o (0 6,000 3 E 3 o 4,000 2,000 •I 5 J - mi r B. Hoskins, age 36 Decreasing treatments n — !' ^ — i7 ''i ui 111 H ll I Cumulative volume in trees: -| + inches - 76 >- - C. demons, age 36 JL i 9-6 + + + 1 3 5 7 2 4 Treatment Figure 35.—Volume production to end of fourth treatment period, by tree size classes: (A) Skykomish, age 42; (B) Hoskins, age 36; (C) demons, age 36; and (D) Francis, age 33. Values are sums of live stand at end of fourth treatment period plus previous thinnings (calibration cut excluded). 6 8 Control Fixed treatments Increasing Decreasing treatments treatments Cumulative volume in trees: + inches 1 3 5 7 2 4 Treatment 6 8 Control 67. 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; Marshall, David D. cn; Pacific Northwest Research Station (Portland, Or. ) cn. [Portland, Or. ] : U. S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Size: 1522px × 1641px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
