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Articles 49381 - 49410 of 57413
Full-Text Articles in Entire DC Network
Colorado Steers And Aspen Bark, J.A. Fullinwider
Colorado Steers And Aspen Bark, J.A. Fullinwider
Aspen Bibliography
No abstract provided.
Processing Low Quality Trees By The Sholo Approach, Vern P. Yerkes
Processing Low Quality Trees By The Sholo Approach, Vern P. Yerkes
Aspen Bibliography
No abstract provided.
Aspen Potential - A Land Manager's Viewpoint, Bruce B. Hronek
Aspen Potential - A Land Manager's Viewpoint, Bruce B. Hronek
Aspen Bibliography
From a land manager's viewpoint, the management of aspen has been lacking. However, the potentials of aspen as a viable and meaningful species that will contribute much to the forest environment and economics is both possible and practical.
Estimating Water Yield Differences Between Hardwood And Pine Forests: An Application Of Net Precipitation Data, Elon S. Verry
Estimating Water Yield Differences Between Hardwood And Pine Forests: An Application Of Net Precipitation Data, Elon S. Verry
Aspen Bibliography
No abstract provided.
Kiln Drying Characteristics Of Studs From Rocky Mountain Aspen And Wisconsin Aspen, James C. Ward
Kiln Drying Characteristics Of Studs From Rocky Mountain Aspen And Wisconsin Aspen, James C. Ward
Aspen Bibliography
Aspen studs, 7/4-inch thick, from Rocky Mountain and Wisconsin trees will dry to required moisture contents within similar periods of time under conventional and high temperature kiln schedules. Bacterial wetwood occurs in both Rocky Mountain and Wisconsin aspen and causes severe drying problems from wet pockets, collapse, honeycomb, and ring failure. Presorting green lumber is a suggested solution to the wetwood problem.
Sawflies Of The Holarctic Genus Platycampus Schioedte (Hymenoptera:Tenthredinidae), D.R. Smith
Sawflies Of The Holarctic Genus Platycampus Schioedte (Hymenoptera:Tenthredinidae), D.R. Smith
Aspen Bibliography
No abstract provided.
Upland Aspen/Birch And Black Spruce Stands And Their Litter And Soil Properties In Interior Alaska, J.L. Troth, F.J. Deneke, L.M. Brown
Upland Aspen/Birch And Black Spruce Stands And Their Litter And Soil Properties In Interior Alaska, J.L. Troth, F.J. Deneke, L.M. Brown
Aspen Bibliography
No abstract provided.
Water Quality Of A Range Watershed In Southwestern Alberta Prior To Aspen Clearing, T. Singh, Y.P. Kalra
Water Quality Of A Range Watershed In Southwestern Alberta Prior To Aspen Clearing, T. Singh, Y.P. Kalra
Aspen Bibliography
No abstract provided.
Understory Production Not Predictable From Aspen Basal Area Or Density, K.E. Severson, J.J. Kranz
Understory Production Not Predictable From Aspen Basal Area Or Density, K.E. Severson, J.J. Kranz
Aspen Bibliography
Analysis of effects of aspen basal area and density on production of understory vegetation revealed no useful predictive relationships using the model log Y = a + bX. However, as the proportion of ponderosa pine basal area increased in aspen-pine stands, understory production declined in a predictable manner. Root biomass, total biomass, and/or growth rate of aspen may be more closely related to understory production than measures of aspen overstory.
Utilization And Marketing As Tools For Aspen Management In The Rocky Mountains: Proceedings Of The Symposium, Sept. 8-9, 1976, Fort Collins, Colorado. Panel Iii. Market Opportunities And Limitations For Rocky Mountain Aspen, G.K. Runyon, M.S. Koepke, E.M. Wengert, R.J. Auchter, T.J. Loring, G. Blackwell
Utilization And Marketing As Tools For Aspen Management In The Rocky Mountains: Proceedings Of The Symposium, Sept. 8-9, 1976, Fort Collins, Colorado. Panel Iii. Market Opportunities And Limitations For Rocky Mountain Aspen, G.K. Runyon, M.S. Koepke, E.M. Wengert, R.J. Auchter, T.J. Loring, G. Blackwell
Aspen Bibliography
No abstract provided.
Effects Of Clear-Cutting On Nutrient Losses In Aspen Forests On Three Soil Types In Michigan, Curtis J. Richardson, Jeffrey A. Lund
Effects Of Clear-Cutting On Nutrient Losses In Aspen Forests On Three Soil Types In Michigan, Curtis J. Richardson, Jeffrey A. Lund
Aspen Bibliography
No abstract provided.
Rocky Mountain Aspen For Pulp: Some Market Opportunities And Limitations, Thomas J. Loring
Rocky Mountain Aspen For Pulp: Some Market Opportunities And Limitations, Thomas J. Loring
Aspen Bibliography
No abstract provided.
Aspen Market Opportunities: Lumber, Excelsior And Residue, Mark S. Koepke
Aspen Market Opportunities: Lumber, Excelsior And Residue, Mark S. Koepke
Aspen Bibliography
No abstract provided.
Applying Research Information To Aspen Management Decisions--National Forests, David L. Hessel
Applying Research Information To Aspen Management Decisions--National Forests, David L. Hessel
Aspen Bibliography
No abstract provided.
Aspen Mortality In Rocky Mountain Campgrounds, Thomas E. Hinds
Aspen Mortality In Rocky Mountain Campgrounds, Thomas E. Hinds
Aspen Bibliography
Aspens die from canker disease infections as a result of mechanical injuries to the live bark inflicted by thoughtless campers. Dead trees usually are cut to reduce camper hazard. Aspen loss is related to campground age. A desirable aspen-type camp unit can be degraded to a treeless site of grass, forbs, and shrubs within 10 to 20 years. The management of aspen campgrounds must be altered if the resource is to be maintained.
Response Of Aspen To Various Harvest Techniques, Howard R. Hittenrauch
Response Of Aspen To Various Harvest Techniques, Howard R. Hittenrauch
Aspen Bibliography
No abstract provided.
Utilization And Marketing As Tools For Aspen Management In The Rocky Mountains, D.L. Hessel, D.R. Betters, T.J. Loring, L.D. Porter, J.E. Bennett
Utilization And Marketing As Tools For Aspen Management In The Rocky Mountains, D.L. Hessel, D.R. Betters, T.J. Loring, L.D. Porter, J.E. Bennett
Aspen Bibliography
No abstract provided.
Problems And Opportunities Associated With Aspen Logging Systems, Wendell H. Groff
Problems And Opportunities Associated With Aspen Logging Systems, Wendell H. Groff
Aspen Bibliography
The opportunities in equipment selection, production ranges and specialization available to a logger producing volume from a coniferous species in many cases are not available to an aspen logger. The logger must identify the limiting factors and design a logging system accordingly.
Aspen Stands As Wildfire Fuel Breaks, Gilbert H. Fechner, Jack S. Barrows
Aspen Stands As Wildfire Fuel Breaks, Gilbert H. Fechner, Jack S. Barrows
Aspen Bibliography
No abstract provided.
Bird Populations Of Aspen Forests In Western North America, J.A. Douglas Flack
Bird Populations Of Aspen Forests In Western North America, J.A. Douglas Flack
Aspen Bibliography
The patterning of populations of plants and animals is probably the result of selection over time of organisms according to their individual physiological tolerances, behavioral adaptations to an environmental complex, and geographical availability (Gleason 1926).
Genetics Of Quaking Aspen, Dean W. Einspahr, Lawson L. Winton
Genetics Of Quaking Aspen, Dean W. Einspahr, Lawson L. Winton
Aspen Bibliography
No abstract provided.
Aspen Resource In The Southwest, Darrell W. Crawford
Aspen Resource In The Southwest, Darrell W. Crawford
Aspen Bibliography
There is a relatively large source of unused aspen in the Southwest. If markets can be developed, there are challenging opportunities to utilize more of this fiber. Most aspen in the Southwest is classified in the marginal component because of steep slopes, accessibility and low market values. To meet the logging constraints of this component is a real challenge to prospective purchasers. However, commercial opportunities are feasible on the Carson, Santa Fe, Apache and Kaibab National Forests.
Guidelines For Aspen Management, David R. Betters
Guidelines For Aspen Management, David R. Betters
Aspen Bibliography
No abstract provided.
Hypoxylon Canker Of Aspen Associated With Saperda Inornata Galls, N.A. Anderson, M.E. Ostry, G.W. Anderson
Hypoxylon Canker Of Aspen Associated With Saperda Inornata Galls, N.A. Anderson, M.E. Ostry, G.W. Anderson
Aspen Bibliography
No abstract provided.
Management Of The Great Salt Lake: A Research Plan And Strategy, Craig T. Jones, Calvin G. Clyde, J. Paul Riley
Management Of The Great Salt Lake: A Research Plan And Strategy, Craig T. Jones, Calvin G. Clyde, J. Paul Riley
Reports
The primary purposes of this report are to indicate the following two research items in connection with the management of the water resource system of the Great Salt Lake:\ 1. Research needs and priorities. 2. A research coordination strategy. Research needs are identified by the report in terms of (1) various management, or use, categories (such as lake industries), and (2) the need to understand the physical characteristics of the lake system itself. The research needs are identified in each category as information (including data) or understanding gaps, in cases where there seems to be sufficient information, a research need …
Capability Of Integer Programming Algorithms In Solving Water Resource Planning Problems, Trevor C. Hughes, William J. Grenney, A. Bruce Bishop, Calvin G. Clyde, Rangesan Narayanan, Paul E. Pugner
Capability Of Integer Programming Algorithms In Solving Water Resource Planning Problems, Trevor C. Hughes, William J. Grenney, A. Bruce Bishop, Calvin G. Clyde, Rangesan Narayanan, Paul E. Pugner
Reports
The feasibility of optimizing large regional water resource planning problems by means of integer programming algorithms is analyzed. Two types of integer programming models are developed: (1) A water supply model including 23 separate but geographically related community systems; and (2) a river basin water quality model including 15 point sources of wastewater, 4 types of pollutants, 6 surveillance points, and 7 alternative treatment processes. The water supply model was structured as a mixed integer problem (some continuous variables included) while the water quality model was an all integer problem. Four integer programming algorithms were tested on the sample problems …
The Sims Technique: An Introduction, Roy W. Esplin
The Sims Technique: An Introduction, Roy W. Esplin
Space Dynamics Laboratory Publications
This is a tutorial paper on the SIMS. The SIMS is an acronym for the spectrométre inter - férentiel à modulation sélective (selective modulation interference spectrometer), recently introduced by Maréchal and Fortunato. The paper reviews the basic principles of operation, the properties, the implementation configurations, and the current investigations of the SIMS at Utah State University. The following properties make the SIMS a powerful spectroscopic instrument. It has an extremely large optical throughput. For example, the SIMS can be configured with a light gathering capability, throughput, thousands of times larger than that of a conventional slit spectrometer. The SIMS does …
Airborne Electronic Ultra-Fast Scanning Spectrometer, Doran Baker, Allan Steed
Airborne Electronic Ultra-Fast Scanning Spectrometer, Doran Baker, Allan Steed
Space Dynamics Laboratory Publications
An all- electronic scanning spectrometer is described which is capable of scanning the 0.6 to 1 u spectral region at scan rates of up to 10,200 scans /second at a resolution of better than 15 $. An image dissector photoelectron multiplier tube is used as the detection device. The minimum detectable signal of the system is Zess than 1 x 10 -E w cm-2 2-1 at 0.8 u. The instrument occupies a volume of less than half a cubic foot and is designed for operation in a KC -135 aircraft. Video magnetic tape recording is used, and a digital read …
Optical Radiation From The Atmosphere, Doran J. Baker, William R. Pendleton Jr.
Optical Radiation From The Atmosphere, Doran J. Baker, William R. Pendleton Jr.
Space Dynamics Laboratory Publications
The -interface region which lies between the meteorological atmosphere of the Earth and "outer" space is a source of abundant optical radiation. The purpose of this paper is to provide the optical instrumentation engineer with a generalized understanding and a summary reference of naturally -occurring aerospace radiation phenomena. The colors of the radiation extend over the full optical spectrum from ultraviolet through the infrared. The emissions, observed during both day and night times , are rich in line and band spectra. The parameterization of atmospheric light by frequency (or photon energy) and by spectral radiance is discussed. The sources of …
Nitrogen Cycling In Microcosms And Application To The Biology Of The Northern Arm Of The Great Salt Lake, John C. Stube, Frederick J. Post, Donald B. Porcella
Nitrogen Cycling In Microcosms And Application To The Biology Of The Northern Arm Of The Great Salt Lake, John C. Stube, Frederick J. Post, Donald B. Porcella
Reports
No abstract provided.