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 |
Dentro del libro
Resultados 1-5 de 42
Página 4
... thinning data with other partial cut data , ( 2 ) thinning plus partial cut data against clearcut data , and finally ( 3 ) natural dead and down fuel data versus any of the other treatments . The stepwise procedure was repeated for the ...
... thinning data with other partial cut data , ( 2 ) thinning plus partial cut data against clearcut data , and finally ( 3 ) natural dead and down fuel data versus any of the other treatments . The stepwise procedure was repeated for the ...
Página 5
... Thinning cut Partial Overstory Sanitation Shelterwood removal Select Natural cut Number of inventories Region 1 Laboratory 21 Clearwater National Forest Regional Office 25 6 4 9 1 5 St. Regis National Forest , St. Regis Ranger District ...
... Thinning cut Partial Overstory Sanitation Shelterwood removal Select Natural cut Number of inventories Region 1 Laboratory 21 Clearwater National Forest Regional Office 25 6 4 9 1 5 St. Regis National Forest , St. Regis Ranger District ...
Página 6
... thinning and partial cut populations are also found indistinct from each other at the 1 - percent level for all three fuel size classes and were consolidated into a single partial cut data group . This con- solidated population is ...
... thinning and partial cut populations are also found indistinct from each other at the 1 - percent level for all three fuel size classes and were consolidated into a single partial cut data group . This con- solidated population is ...
Página 7
... Thinning vs. partial cut 1.19 ( 1 , 50 ) NS2 / Clearcut vs. partial cut 24.96 ( 1 , 22 ) PNW clearcut vs. other clearcut .95 ( 1 , 70 ) Natural vs. clearcut .00 ( 1 , 192 ) 3380 99.5 NS NS 10 - hour fuels Thinning vs. partial cut 3.17 ...
... Thinning vs. partial cut 1.19 ( 1 , 50 ) NS2 / Clearcut vs. partial cut 24.96 ( 1 , 22 ) PNW clearcut vs. other clearcut .95 ( 1 , 70 ) Natural vs. clearcut .00 ( 1 , 192 ) 3380 99.5 NS NS 10 - hour fuels Thinning vs. partial cut 3.17 ...
Página 21
... thinning is delayed . Advance reproduction played a significant role in the Cascade mountain hemlock clearcuts where slash was not treated . Many mature stands in this plant community have a well - stocked understory of true fir and ...
... thinning is delayed . Advance reproduction played a significant role in the Cascade mountain hemlock clearcuts where slash was not treated . Many mature stands in this plant community have a well - stocked understory of true fir and ...
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