Site Index and Height Growth Curves for Managed, Even-aged Stands of White Or Grand Fir East of the Cascades in Oregon and Washington, Volumes 246-260Collin D. Bevins, Donald L. Reukema, John Neisess, Kenneth W. Seidel, M. A. Radwan, P. H. Cochran, Paul E. Aho, R. Dennis Harr, Richard E. Miller Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1978 - Browse - 21 pages |
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Results 6-10 of 33
Page 3
... included ) . In each geographic region 50 samples ( plots ) were then selected at random from the total number in that region . In most cases , this resulted in only one sample per clearcut ; but several of the larger clearcuts were ...
... included ) . In each geographic region 50 samples ( plots ) were then selected at random from the total number in that region . In most cases , this resulted in only one sample per clearcut ; but several of the larger clearcuts were ...
Page 10
... 1.2 6.2 7.4 2.0 0.9 0.6 5.5 16.0 75.8 82.0 0.9 76.4 5.5 100.0 1 / Based on 4 - milacre subplots . One- and 2 - year seedlings included . MOUNTAIN HEMLOCK COMMUNITY Decreased stocking More grass Increased severity . 10.
... 1.2 6.2 7.4 2.0 0.9 0.6 5.5 16.0 75.8 82.0 0.9 76.4 5.5 100.0 1 / Based on 4 - milacre subplots . One- and 2 - year seedlings included . MOUNTAIN HEMLOCK COMMUNITY Decreased stocking More grass Increased severity . 10.
Page 18
... included . Species or origin class Table 14 -- Positive and negative. Origin Grand fir Douglas- fir Western larch Species spruce Ponderosa pine Lodgepole Total pine Advance 6.2 0.5 0.6 2.0 0.3 9.6 Natural subsequent 11.1 2.9 6.8 4.8 0.1 ...
... included . Species or origin class Table 14 -- Positive and negative. Origin Grand fir Douglas- fir Western larch Species spruce Ponderosa pine Lodgepole Total pine Advance 6.2 0.5 0.6 2.0 0.3 9.6 Natural subsequent 11.1 2.9 6.8 4.8 0.1 ...
Page 12
... included in the prelogging period . The increase is not significant at the 0.05 level of probability . Measured flow was less than predicted . As evidenced by the relative positions of the prelogging and post- logging regression lines ...
... included in the prelogging period . The increase is not significant at the 0.05 level of probability . Measured flow was less than predicted . As evidenced by the relative positions of the prelogging and post- logging regression lines ...
Page 15
... included in figure 10 . The relationship between peak flow and soil disturbance shown in figure 10 , however , is oversimplified . This may be misleading because it ignores other factors such as proximity of compacted areas to streams ...
... included in figure 10 . The relationship between peak flow and soil disturbance shown in figure 10 , however , is oversimplified . This may be misleading because it ignores other factors such as proximity of compacted areas to streams ...
Common terms and phrases
100 largest trees 50 percent atrazine average basal area Blue Mountains board-foot breast-high age calibration Cascade Range clearcuts conifer dead tops decay density diameter Douglas-fir equations estimated Forest and Range Forest Service fuel load fuel model grand fir height growth curves illus inches increases lodgepole pine logging mineral soil mixed conifer mountain hemlock National Forest natural regeneration NFDRS number of trees Oreg Oregon Pacific Northwest Pacific Northwest Forest partial cut peak flow percent of roadless planted ponderosa pine Portland postlogging programed harvest Range Exp Range Experiment Station reallocation regression road roadless area withdrawn sample seed seedlings Siskiyou National Forest slope spacing species Stocking percent streamflow study area study Forests subplots timber base timber harvest top-kill treatment period trees per acre tussock moth U.S. Department Umatilla Umatilla National Forest USDA values variables volume Washington watershed western white or grand Willamette National Forest