Site Index and Height Growth Curves for Managed, Even-aged Stands of White Or Grand Fir East of the Cascades in Oregon and Washington, Volúmenes246-260Collin 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 - 21 páginas |
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... populations , particularly the G fuel model which represents natural dead and down fuels under a dense conifer canopy ? Parameter General parameters Value Symbol Low heat of combustion h Contents INTRODUCTION STUDY APPROACH.
... populations , particularly the G fuel model which represents natural dead and down fuels under a dense conifer canopy ? Parameter General parameters Value Symbol Low heat of combustion h Contents INTRODUCTION STUDY APPROACH.
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... dead and down fuel inventories were collected ( table 3 ) . Of the activity - created fuel inventories , 144 were in clearcut slash . The load data were quantitatively analyzed by performing a series of one way analyses of variance ...
... dead and down fuel inventories were collected ( table 3 ) . Of the activity - created fuel inventories , 144 were in clearcut slash . The load data were quantitatively analyzed by performing a series of one way analyses of variance ...
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... dead fuels Table 5 -- Analysis of variance of fuel loads among. of smaller , assumed groupings into larger , statistically alike popu- lations , until one or more distinct fuel distributions emerged . When combined , the distinct ...
... dead fuels Table 5 -- Analysis of variance of fuel loads among. of smaller , assumed groupings into larger , statistically alike popu- lations , until one or more distinct fuel distributions emerged . When combined , the distinct ...
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... dead fuel loadings F ratio , DF = degrees of freedom . = not significant at 90 - percent level . Table 6 -- Mean , standard deviation , and selected. Treatments F ( DF ) 1 / Significance level ( percent ) 1 - hour fuels Thinning vs ...
... dead fuel loadings F ratio , DF = degrees of freedom . = not significant at 90 - percent level . Table 6 -- Mean , standard deviation , and selected. Treatments F ( DF ) 1 / Significance level ( percent ) 1 - hour fuels Thinning vs ...
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... dead situations Table 7 -- Surface area - to - volume ratios. Needles 1 - hour 10 - hour 100 - hour Fuel type 67 % 50 % SD 67 % 50 % SD 67 % 50 % SD 67 % 2 Kilograms / meter Clearcut 0.545 Partial cut Natural .260 0.242 0.167 .119 .007 ...
... dead situations Table 7 -- Surface area - to - volume ratios. Needles 1 - hour 10 - hour 100 - hour Fuel type 67 % 50 % SD 67 % 50 % SD 67 % 50 % SD 67 % 2 Kilograms / meter Clearcut 0.545 Partial cut Natural .260 0.242 0.167 .119 .007 ...
Términos y frases comunes
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