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Articles 1 - 30 of 36
Full-Text Articles in Life Sciences
Yields From 18-Year-Old Aspen Via Total Tree Harvesting, M.K. Benson, D.W. Einspahr
Yields From 18-Year-Old Aspen Via Total Tree Harvesting, M.K. Benson, D.W. Einspahr
Aspen Bibliography
Described are the results of harvesting the above-ground parts of an 18-year-old aspen stand and the observations made on the initial suckering of the new stand. The yields for the stand of 17.7 cunits per acre were greater than predicted yields of comparable material for the site at age 35. Suckering on the area the first area after cutting averaged 37,000 aspen stems per acre and 2.6 feet in height.
Yields From 18-Year-Old Aspen Via Total Tree Harvesting, M. K. Benson, D. W. Einspahr
Yields From 18-Year-Old Aspen Via Total Tree Harvesting, M. K. Benson, D. W. Einspahr
Aspen Bibliography
Described are the results of harvesting the above-ground parts of an 18-year-old aspen stand and the observations made on the initial suckering of the new stand. The yields for the stand of 17.7 cunits per acre were greater than predicted yields of comparable material for the site at age 35. Suckering on the area the first year after cutting averaged 37,000 aspen stands per acre and 2.6 feet in height.
Aspen Minnesota's No. 1 Tree, George Rossman, Bob Rossman, Allen Rossman
Aspen Minnesota's No. 1 Tree, George Rossman, Bob Rossman, Allen Rossman
Aspen Bibliography
For thousands of years after the last glaciers disappeared from northern Minnesota, the forces of nature worked to develop a magnificent forest of predominantly white and red pine. Stands of big pines covered more than 5 million acres.
[I] Ceratocystis Canker Of Aspen. [Ii] Insect Transmission Of Ceratocystis Species Associated With Aspen Cankers, Thomas E. Hinds
[I] Ceratocystis Canker Of Aspen. [Ii] Insect Transmission Of Ceratocystis Species Associated With Aspen Cankers, Thomas E. Hinds
Aspen Bibliography
No abstract provided.
The Basic Habitat Resource For Ruffed Grouse, Gordon W. Gullion, Franklin J. Svovoda
The Basic Habitat Resource For Ruffed Grouse, Gordon W. Gullion, Franklin J. Svovoda
Aspen Bibliography
No abstract provided.
Projecting The Aspen Resource In The Lake States [Usa], W.A. Leuschner
Projecting The Aspen Resource In The Lake States [Usa], W.A. Leuschner
Aspen Bibliography
No abstract provided.
Stemflow In A Multi-Storied Aspen Community, J.R. Clements
Stemflow In A Multi-Storied Aspen Community, J.R. Clements
Aspen Bibliography
This report presents results of a stemflow study in a 5-year-old, dense, sucker stand of largetooth aspen [Populus grandidentata Michx.]. The purposes of this study were to determine the relation of stemflow volume per tree to gross rain per storm, to determine the proportion of gross rain reaching the ground as stemflow, and to derive an equation to predict rain equivalent of stemflow from gross rain for use in other studies of water relations of this sucker stand.
Simulation Of The Daily Growth Of An Aspen Population From The Measured Co2-Exchange Rates Of The Components, G.C. Bate, D.T. Canvin
Simulation Of The Daily Growth Of An Aspen Population From The Measured Co2-Exchange Rates Of The Components, G.C. Bate, D.T. Canvin
Aspen Bibliography
The daily total CO2-exchange of an aspen population (32 trees) was measured using a growth chamber gas analysis system which had been shown to measure accurately the actual carbon gain of the population. The CO2-exchange rates of the components (e.g. roots, stems, leaves) were measured in the light and dark and these rates were used to calculate the total CO2-exchange of the population using a computer model. The carbon gain during the photoperiod was underestimated by 25% in the simulation while the carbon loss during the nyctoperiod was overestimated 100% by the simulation.
Effects Of Thinning On Growth And Yield, John W. Hubbard
Effects Of Thinning On Growth And Yield, John W. Hubbard
Aspen Bibliography
No abstract provided.
Forest Fuel Accumulation -- A Growing Problem, Marvin Dodge
Forest Fuel Accumulation -- A Growing Problem, Marvin Dodge
The Bark Beetles, Fuels, and Fire Bibliography
Discusses the problem caused by accumulation of forest fuels in the wild-land forests of the western USA under the policy of total fire protection pursued there for many years, and emphasizes the need to find economical and practical ways of reducing fuel hazards in these forests, especially by means of prescribed burning under conditions in which low-intensity fires can be achieved.
Cattle Use Of A Sprayed Aspen Parkland Range, J.E. Hilton, A.W. Bailey
Cattle Use Of A Sprayed Aspen Parkland Range, J.E. Hilton, A.W. Bailey
Aspen Bibliography
Aspen parkland range in central Alberta that had been treated with a herbicide two years prior to the study had greater grazing use of the sprayed forest vegetation than did the untreated forest.
Size And Suckering Of Trembling Aspen Clones In Manitoba, Gustav A. Steneker
Size And Suckering Of Trembling Aspen Clones In Manitoba, Gustav A. Steneker
Aspen Bibliography
No abstract provided.
Silvics And Ecology In Canada, J.S. Maini
An Allometric Model For Bole Biomass Estimates Of Spruce And Aspen In Southwestern Colorado, Thomas D. Landis
An Allometric Model For Bole Biomass Estimates Of Spruce And Aspen In Southwestern Colorado, Thomas D. Landis
Aspen Bibliography
No abstract provided.
Genetic Control Of Susceptibility To Hypoxylon Mammatum In Native Aspens, F.A. Valentine, P.D. Manion
Genetic Control Of Susceptibility To Hypoxylon Mammatum In Native Aspens, F.A. Valentine, P.D. Manion
Aspen Bibliography
Hypoxylon canker, caused by Hypoxylon mammatum (Wahl.) Mill. (sy., H. pruinatum (Slot.) Cke.) is one of the more serious diseases of trembling aspen (Populus tremuloides Michx.) but is rare on bigtooth aspen (P. grandidentata Michx.) (Graham et al., 1963).
Youth, Maturity, And Old Age, James S. Fralish
Youth, Maturity, And Old Age, James S. Fralish
Aspen Bibliography
No abstract provided.
Deer And Aspen, American Box Board Co.
Growth And Yield Of Managed Stands, Bryce E. Schlaegel
Growth And Yield Of Managed Stands, Bryce E. Schlaegel
Aspen Bibliography
No abstract provided.
Management For Deer, John D. Byelich, Jack L. Cook, Ralph I. Blouch
Management For Deer, John D. Byelich, Jack L. Cook, Ralph I. Blouch
Aspen Bibliography
Deer in the Lake States are declining. Early stages of second growth forest following the logging era favored deer. Aging and successional changes toward more tolerant types are causing range deterioration. Aspen is the major deer-producing forest type. Commercial harvest of aspen improved deer range, but not enough is taking place to reverse the downward trend of deer or to save the type from conversion. Additional efforts to cut of otherwise treat aspen stands specifically for deer have been of token size. Michigan has earmarked a deer license increase for range improvement and is now embarked on a large scale …
The Relationship Of The Abundance Of Saperda Inornata And Oberea Schaumii (Coleoptera: Cerambycidae) In Large Trembling Aspen, Populus Tremuloides, To Site Quality, J.C. Nord, F.B. Knight
The Relationship Of The Abundance Of Saperda Inornata And Oberea Schaumii (Coleoptera: Cerambycidae) In Large Trembling Aspen, Populus Tremuloides, To Site Quality, J.C. Nord, F.B. Knight
Aspen Bibliography
No abstract provided.
Insect Transmission Of Ceratocystis Species Associated With Aspen Cankers, Thomas E. Hinds
Insect Transmission Of Ceratocystis Species Associated With Aspen Cankers, Thomas E. Hinds
Aspen Bibliography
No abstract provided.
Natural Succession In North-Central Minnesota, Henry L. Hansen, Vilis Kurmis
Natural Succession In North-Central Minnesota, Henry L. Hansen, Vilis Kurmis
Aspen Bibliography
No abstract provided.
The Effects Of Deer And Domestic Livestock On Aspen Regeneration In Utah, Arthur D. Smith, Paul A. Lucas, Calvin O. Baker, George W. Scotter
The Effects Of Deer And Domestic Livestock On Aspen Regeneration In Utah, Arthur D. Smith, Paul A. Lucas, Calvin O. Baker, George W. Scotter
Aspen Bibliography
No abstract provided.
Effect Of An Aspen Clearcutting On Water Yield And Quality In Northern Minnesota, Elon S. Verry
Effect Of An Aspen Clearcutting On Water Yield And Quality In Northern Minnesota, Elon S. Verry
Aspen Bibliography
The impact of different forest types on streamflow or groundwater recharge must be considered in evaluating multiple-use alternatives. The impact of species conversion on streamflow has been directly measured at the Coweeta Experimental Watersheds in North Carolina. However, the use of net precipitation1 data, with appropriate cautions, provides a practical basis for estimating water yield differences between forest types where long-term streamflow comparisons are not available.
Estimating Woody Dry Matter Loss Resulting From Defoliation, D.F.W. Pollard
Estimating Woody Dry Matter Loss Resulting From Defoliation, D.F.W. Pollard
Aspen Bibliography
No abstract provided.
Mortality Of Aspen On The Gros Ventre Elk Winter Range, R.G. Krebill
Mortality Of Aspen On The Gros Ventre Elk Winter Range, R.G. Krebill
Aspen Bibliography
No abstract provided.
Waterfowl Habitat Trends In The Aspen Parkland Of Manitoba, W.H. Kiel, A.S. Hawkins, N.G. Perret
Waterfowl Habitat Trends In The Aspen Parkland Of Manitoba, W.H. Kiel, A.S. Hawkins, N.G. Perret
Aspen Bibliography
No abstract provided.
Phenetic Affinities In Small Populations Of New York Aspens, C.M. Harrison, F.A. Valentine
Phenetic Affinities In Small Populations Of New York Aspens, C.M. Harrison, F.A. Valentine
Aspen Bibliography
According to Anderson (1962) much of the variation in wild populations of plants is attributable to occasional introgressive hybridization.
Altitudinal Variation Of Chlorophyll Concentration And Reflectance Of The Bark Of Populus Tremuloides, W.W. Covington
Altitudinal Variation Of Chlorophyll Concentration And Reflectance Of The Bark Of Populus Tremuloides, W.W. Covington
Aspen Bibliography
No abstract provided.
Economic Operability - Factors Affecting Harvest And Transport Costs, Dennis P. Bradley, Frank E. Biltonen
Economic Operability - Factors Affecting Harvest And Transport Costs, Dennis P. Bradley, Frank E. Biltonen
Aspen Bibliography
No abstract provided.