Digital Commons Network^™

Development And Preliminary Application Of Mathematical Models To The Weber Basin, W. J. Grenney, D. S. Bowles, M. D. Chambers, J. P. Riley

Reports

The adoption of stream standards, whether for direct application or for the establishment of realistic effluent standards, creates a need to predict the impact of pollution loads on river water quality during critical flow periods or as the result of future user demands. Because of the complexity of aquatic systems, mathematical models are an excellent medium for bringing together the state-of-the-art knowledge from a variety of disciplines into a form which can be readily applied to practical problems. Applying a mathematical model to a river system has the added advantage of providing a structure for the systematic consideration of the …

Multiple Uses Of Utah Irrigation Canals: Cache County As A Case Study, James J. Kennedy, Komain Unhanand

Reports

Irrigation use is an obvious benefit of Utah canals that has been recognized for over 100 years. This study attempts to illustrate other, less obvious, uses. the major use examined was recreational, but canals are presently functioning as storm drainage systems and have potential for diverting flood crests in many river systems.

Recreational use of canals falls into two categories. There is passive use such as its landscape values, affects on creating shade and bird-wildlife habitat, etc., that is difficult to quantify but no less important than active canal use such as tubing, hiking, bank-play, bicycling, etc. We selected several …

Food, Nutrition, And Health, Problems And Prospects, D. K. Salunkhe

Faculty Honor Lectures

Food, nutrition, and health - and their complex interrelationships - are necessities of life. Basically, nutrition depends on food; health depends on nutrition. Everyone needs to have enough good quality food to sustain himself. Satisfying that need on a world basis must be of concern to each of us.

Although accurate data are lacking, it is estimated that more than two-thirds of today's world population is afflicted by hunger and/ or malnutrition. Almost 300 million children are suffering physical and, probably, mental damage because of insufficient food. This evidence points to one of two conclusions: we have either too many …

Poplars In The Prairie Provinces, G. A. Steneker

Aspen Bibliography

The story of poplars is an unusual tale - a rag to riches story. The poplar has gone from weed to popular resource, because today this abundant species is being regarded by many as a possible source of newsprint, tissue, plywood and even livestock feed. Poplars provide choice winter and summer food for white-tailed deer and grouse, and the first prairie homes were built with and heated by poplar logs. Often considered a weed, the poplars of the Prairies are now facing a brighter future.

Radial Distribution Of Corticular Photosynthate In Stems Of Bigtooth And Trembling Aspen, Robert K. Shepherd, Jr.

Aspen Bibliography

No abstract provided.

Water Salvage Potentials In Utah, Volume I. Open Water Evaporation And Monolayer Suppression Potential, Trevor C. Hughes, E. Arlo Richardson, James A. Franckiewicz

Reports

An estimate of the potential in Utah for evaporation suppression by the monolayer film method is presented. The model estimates evaporation suppression as a function of wind speed, a four parameter exposure factor, and reservoir size. The estimated suppression factors vary from 0 to 30 percent and average 11 percent of the statewide total annual evaporation. Estimates of May to October evaporation and suppression potential are calculated for each of the 227 impoundments in the surface water inventory. A forthcoming report in this series will examine the potential for evaporation suppression by thermal destratification. This procedure, which is already being …

Seed Reserves In Desert Soils, David W. Goodall, Suzanne J. Morgan

Memorandum

Soil and litter samples were collected from the playa, playa fringe and bajada zones of the Jornada Validation Site. These samples were analyzed for their seed content, special attention being paid to spatial distribution. At the time of sampling, there was little litter on the soil surface, and the litter contained only a small proportion of the total seeds present.

The Role Of Algae In Crust Formation And Nitrogen Cycling In Desert Soils, R. I. Lynn, M. C. Vogelsberg

Memorandum

No abstract provided.

Effect Of Soil Water Potential On Soil Moisture Absorption, Transpiration Rate, Plant Water Potential, And Growth Of Artemisia Tridentata, Gaylon S. Campbell, Grant A. Harris

Memorandum

No abstract provided.

Biology Of Nematodes In Desert Ecosystems, D. W. Freckman, R. Mankau, S. A. Sher

Progress reports

No abstract provided.

Ecology Of Cool Desert Annuals, L. G. Klikoff, D. C. Freeman, N. Negus

Progress reports

No abstract provided.

Multiplexed Dispersive Spectrometers Using Reduced Background Infrared Detectors, Clair L. Wyatt, Roy W. Esplin

Space Dynamics Laboratory Publications

The application of multiplex spectrometry to cryogenically cooled LWIR extrinsic photodetectors is limited by system noise. This noise limitation results in a detector NEP that is directly proportional to bandwidth. Therefore, multiplex schemes that require increased bandwidth are not productive of real advantage. However, doubly encoded systems that are based on 2n - 1 or n + N - 1 measurements have the potential to provide a real throughput gain proportional to the number of elements used on the throughput matrix.

Usu Status Of Women News, Volume Ii, Issue 3

ADVANCE Library Collection

No abstract provided.

Life: A Computer Program For Stochastic Life Table Analysis, C. Romesburg, K. Marshall

Memorandum

No abstract provided.

Simulations Of Desert Biome Sites Using The General-Purpose Model, C. Gist, David W. Goodall

Memorandum

No abstract provided.

A Preliminary Submodel Of Carbon Translocation, W. Valentine, M. Ayyad

Memorandum

No abstract provided.

A Generalized Phenology Submodel For Desert Plants, J. Reynolds

Memorandum

No abstract provided.

Physiological Section For The Animal Submodel General-Purpose Model, W. G. Whitford, R. Mishaga, J. Delson, S. Pimm, F. Kay

Memorandum

No abstract provided.

Tucson Basin Validation Site, J. L. Thames

Memorandum

No abstract provided.

Terrestrial Model: Animal Processes (Version Iii), S. Payne

Memorandum

No abstract provided.

Distribution And Balance Of Biomass And Nutrients In Desert Shrub Ecosystems, James O. Klemmedson

Memorandum

No abstract provided.

Phenology And Function Of Sonoran Desert Annuals In Relation To Environmental Changes, Duncan T. Patten, Edward M. Smith

Memorandum

No abstract provided.

Rock Valley Validation Site, F. B. Turner, J. F. Mcbrayer

Memorandum

No abstract provided.

Jornada Validation Site, Walter G. Whitford

Memorandum

No abstract provided.

Plant Productivity And Nutrient Interrelationships Of Perennials In The Mohave Desert, S. A. Bamberg, A. Wallace, G. E. Kleinkopf, A. Vollmer, B. S. Ausmus

Memorandum

No abstract provided.

Effect Of Density On The Population Dynamics Of Perognathus Formosus And Its Relationships Within A Desert Ecosystem, Robert M. Chew, Frederick B. Turner

Memorandum

No abstract provided.

Population Structure, Foraging Behavior And Daily Movements Of Certain Sonoran Desert Birds, S. M. Russell, P. J. Gould

Memorandum

No abstract provided.

Classification And Quantification Of Invertebrate Activity And The Role Of Invertebrates In Nitrogen Processing In Plants, Litter And Soil In Curlew Valley, P. R. Sferra

Memorandum

No abstract provided.

Reproduction And Survivorship Of The Lizard, Uta Stansburiana, And The Effects Of Winter Rainfall, Density And Predation On These Processes, Frederick B. Turner, Philip A. Medica, Donald D. Smith

Memorandum

No abstract provided.

Usu Status Of Women News, Volume Ii, Issue 1

ADVANCE Library Collection

No abstract provided.