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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Página 6
... programed in a calculator using the equation shown in the appendix 180 160 140 120 Site index ( feet ) 110 100 90 ..80 100 .70 80 60 40 20 O 0 20 40 60 80 100 Breast - high age ( years ) .60 50 Figure 3 .-- Height growth curves for the ...
... programed in a calculator using the equation shown in the appendix 180 160 140 120 Site index ( feet ) 110 100 90 ..80 100 .70 80 60 40 20 O 0 20 40 60 80 100 Breast - high age ( years ) .60 50 Figure 3 .-- Height growth curves for the ...
Página 6
... programed on a calculator using the equation , Total height 4.5 feet - ex2 feet - ( 84.93 feet ) ex3 + ( site index 4.5 feet ) e ex3 - Here , x2 is as previously defined , and et x3 = -6.2056+ 2.097 1oge age - 0.09411 ( loge age ) 2 ...
... programed on a calculator using the equation , Total height 4.5 feet - ex2 feet - ( 84.93 feet ) ex3 + ( site index 4.5 feet ) e ex3 - Here , x2 is as previously defined , and et x3 = -6.2056+ 2.097 1oge age - 0.09411 ( loge age ) 2 ...
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... programed in the first decade with the entire roadless area included in the timber base could not be achieved on any study Forest when the roadless area was withdrawn and the funds saved were reallocated to more intensive timber ...
... programed in the first decade with the entire roadless area included in the timber base could not be achieved on any study Forest when the roadless area was withdrawn and the funds saved were reallocated to more intensive timber ...
Página 8
... programed harvest of each study Forest . We required timber management and inventory data and a timber harvest scheduling algorithm . The management and inventory data were provided by the timber management staff of each study Forest ...
... programed harvest of each study Forest . We required timber management and inventory data and a timber harvest scheduling algorithm . The management and inventory data were provided by the timber management staff of each study Forest ...
Página 10
... programed for harvest . When there are areas that can only be harvested after some technical , biological , or ... Programed Harvest Another set of calculations for each study Forest was the programed harvest with ( 1 ) the total ...
... programed for harvest . When there are areas that can only be harvested after some technical , biological , or ... Programed Harvest Another set of calculations for each study Forest was the programed harvest with ( 1 ) the total ...
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