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A Model For Predicting Lightning-Fire Ignition In Wildland Fuels, United States Department Of Agriculture, Forest Service

Wildfires

A model has been developed for predicting the number of lightning-fire ignitions in wildland fuels. The model is based on both stochastic and physical processes. Stochastic methods are used to generalize the lightning storm characteristics and site conditions that affect the potential for ignition. Physical processes are involved in determining the ignition probability of woody fuels by individual lightning events. Input required to operate the model includes lightning activity, upper air windspeed (storm movement), fuel moisture, and fuel bulk density. The model can be used either to predict ignitions at some future time by using forecast data or to estimate …

Fire Behavior In Nonuniform Fuels, United States Department Of Agriculture, Forest Service

Wildfires

For the purposes of this study, nonuniform fire behavior is predicted by modeling fire spread through a hexagonal network of fuel cells. Fire spread is assumed to be a process of contagious growth between cells. Fuel properties are allowed to vary from cell to cell in a prescribed manner but have uniform properties within the cell. Consequently, the nonuniformity of the actual fuel array is simulated through cell to cell variations and has a resolution limited by the cell size. Because of the nature of the modeling process, it is necessary to devise a scheme for collecting data describing nonuniformity …

Fire - Decay: Interactive Roles Regulating Wood Accumulation And Soil Development In The Northern Rocky Mountains, United States Department Of Agriculture, Forest Service

Wildfires

Decay and fire play interactive roles in recycling wood and other organic materials in forest ecosystems, and contribute to the development of high quality soils in the Northern Rocky Mountains. Decayed wood, charcoal, and other decomposed organic matter are the principal media for ectomycorrhizal and nonsymbiotic nitrogen fixing microbes. The activities of these microbes are critical to the growth of forest trees. The balance between decay and fire, as it affects the amount, distribution, and type of organic matter, controls the ability of forest soils to support the growth of trees.

Comparison Of Tolerance To High Moisture Conditions Of The Soil Among Crop Plants: Studies On The Comparative Plant Nutrition [English Translation], Toshiaki Tadano, Kiyokazu Kirimoto, Isao Aoyama, Arika Tanaka

Publications

Tolerance to high moisture conditions in the soil was compared for eighteen crop species, and factors causing differences among species were studied: 1) When the moisture content of a soil was kept high, the soil air contained 10.5 - 17.5% of O2 and 5.0 - 9.8% of CO2, and the soil solution was not very high in Fe, Mn or NO2-N. 2) Cruciferae, Solanaceae, sugar beet, field bean, pea, cucumber and Chrysanthemum coronarium were very susceptible to this condition, but maize, soybean, and onion were tolerant. Rice grew better under this condition than under ordinary upland conditions. 3) Tolerance to …

Assessment Of Design Alternatives: Proposed Relocation Of Rainbow Marina, Glen Canyon National Recreation Area, Utah-Arizona, Philip E. Flores Associates, Inc.

Elusive Documents

No abstract provided.

Plant Productivity And Nutrient Interrelationships Of Perennials In The Mohave Desert, A. Wallace, A. T. Vollmer, R. T. Mueller, J. W. Cha

Memorandum

No abstract provided.

Gas Exchange Of Sonoran Desert Plants, S. R. Szarek, R. M. Woodhouse

Memorandum

No abstract provided.

Nitrogen Cycling In Great Basin Desert Soils, J. Skujins, B. Klubek

Memorandum

No abstract provided.

Industrial Arts Education: A Review And Synthesis Of The Research 1968-1979, Michael J. Dyrenfurth, Dan L. Householder

Engineering Education Faculty Publications

No abstract provided.

The Eagle 1979, College Of Eastern Utah

College of Eastern Utah Yearbooks

Yearbook for College of Eastern Utah 1979.

Cache Valley Is Dairy Country, Rondo A. Christensen

Economic Research Institute Study Papers

Dairy products co ntinue to make up a popular and nutritious part of our diet. Per capita consumption of cheese increased 60 percent during the last ten years, and consumption of low-fat fluid milk products more than doubled. Consumers in Cache Valley are fortunate in that they live in the heart of a milk production and manufacturing area. Dairy products are in plentiful supply from local businesses. Consumers can have dairy products delivered to their door, buy them from the supermarket, or purchase direct from local producer/distributors. Many enjoy going to one of the local cheese plants to stock up …

Biology Of Nematodes In Desert Ecosystems, R. Mankau

Memorandum

No abstract provided.

Demography Of Termite Colonies As Related To Various Environmental Factors: Nutritional Biochemistry And Physiology Of Termites, W. L. Nutting, J. P. Lafage

Memorandum

No abstract provided.

Seed-Eating Birds, H. R. Pulliam

Memorandum

No abstract provided.

Demography Of Termite Colonies As Related To Various Environmental Factors: Nutritional Biochemistry And Physiology Of Termites, W. L. Nutting, J. P. Lafage

Memorandum

No abstract provided.

Plant Food Habits Of Rodents In Curlew Valley, E. L. Becker Ii, D. F. Balph, M. H. Balph

Memorandum

No abstract provided.

Effects Of Rodents On Germination Of Desert Annuals, O. J. Reichman

Memorandum

No abstract provided.

Rodent Seed-Foraging Strategies And Competition With Ants In The Sonoran Desert, J. H. Brown, D. W. Davidson

Memorandum

No abstract provided.

Responses And Interactions In Desert Plants As Influenced By Irrigation And Nitrogen Application, R. B. Hunter, E. M. Romney, A. Wallace, J. E. Kinnear, T. L. Ackerman, H. O. Hill

Memorandum

No abstract provided.

Primary Production And Carbon Allocation In Creosotebush: Validation Of The Model, G. L. Cunningham, J. F. Reynolds

Memorandum

No abstract provided.

Jornada Validation Site Report, W. G. Whitford

Memorandum

No abstract provided.

Tucson Basin Validation Site Report, J. L. Thames

Memorandum

No abstract provided.

Rock Valley Validation Site Report, F. B. Turner

Memorandum

No abstract provided.

Impact Of Grazing On Foothill Vegetation, K. C. Hodgkinson, P. S. Johnson

Memorandum

No abstract provided.

User's Manual For Desert2: A Desert Ecosystem Simulator Written In Ansi Fortran Iv, W. D. Valentine

Memorandum

No abstract provided.

Management And Administration, F. H. Wagner

Progress reports

No abstract provided.

Interacting Prey Characteristic Effects On Kestrel Predatory Behavior, Frederick F. Knowlton, Leonard F. Ruggiero, Carl D. Cheney

Wildland Resources Faculty Publications

Prey selection was assessed based on 116 experimental trials in which six kestrels were presented pairs of mice. Independent variables included pelage color (black and white), morphology (familiar and unfamiliar), and movement (aberrant, normal, and none). Each prey item represented a combination of three treatments, i.e., one per variable. In general, black pelage was preferred to white and familiar morphology was preferred to unfamiliar. An important interaction occurred between movement and morphology. Kestrel selection was low for moving unfamiliar prey but high for nonmoving unfamiliar prey. The highest rates of attack were elicited by moving familiar prey. It was concluded …

Utah State University Commencement, 1979 – Main Campus, Utah State University

Commencement Programs

Eighty-Sixth Annual Commencement of Utah State University

Effect Of Displaced Geomagnetic And Geographic Poles On High-Latitude Plasma Convection And Ionospheric Depletions, Jan Josef Sojka, W. J. Raitt, Robert W. Schunk

All Physics Faculty Publications

We assumed that the ionospheric plasma at high latitudes has a tendency to corotate about the geographic pole and that magnetospheric convection is relative to the geomagnetic pole. With this assumption we calculated plasma drift patterns over the polar cap for a range of constant magnetospheric electric fields as well as for asymmetric electric fields with enhanced plasma flow on either the dawnside or the duskside of the polar cap. We calculated the drift patterns in both the geographic inertial and the geomagnetic inertial frame taking into account the displacement between the geographic and geomagnetic poles. We found that this …

Journal Of Mormon History Vol. 6, 1979

Journal of Mormon History

• --From Frontier Activism to Neo-Victorian Domesticity: Mormon Women in the Nineteenth and Twentieth Centuries

Lawrence Foster, 3

• --New Light on the Sun: Emma Smith and the New York Sun Letter

Linda K. Newell and Valeen T. Avery, 23

• --One Man's Nauvoo: William Clayton's Experience in Mormon Illinois

James B. Allen, 37

• --Alice Smith Edwards: The Little Princess

Nancy Hiles Ishikawa, 61

• --Amasa Mason Lyman, the Spiritualist

Loretta L. Hefner, 75

• --Welfare before Welfare: Twentieth Century LDS Church Charity before the Great Depression

Bruce D. Blumell, 89

• --Winifred Graham and the Mormon Image

Malcolm R. Thorp, 107 …