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Articles 51271 - 51300 of 52589
Full-Text Articles in Entire DC Network
Gaseous Exchange In Mohave Desert Shrubs, S. Bamberg, A. Wallace
Gaseous Exchange In Mohave Desert Shrubs, S. Bamberg, A. Wallace
Memorandum
No abstract provided.
Gas Exchange Of Great Basin Shrubs, M. M. Caldwell, R. T. Moore, R. S. White, E. J. Depuit
Gas Exchange Of Great Basin Shrubs, M. M. Caldwell, R. T. Moore, R. S. White, E. J. Depuit
Memorandum
No abstract provided.
Predicting Nitrogen Transformations And Osmotic Potentials In Warm Desert Soils, G. R. Dutt, J. Hanks
Predicting Nitrogen Transformations And Osmotic Potentials In Warm Desert Soils, G. R. Dutt, J. Hanks
Memorandum
No abstract provided.
Factors Affecting The Movement And Distribution Of Anions In Desert Soils, J. J. Jurinak, R. A. Griffin
Factors Affecting The Movement And Distribution Of Anions In Desert Soils, J. J. Jurinak, R. A. Griffin
Memorandum
No abstract provided.
Soil Factors Influencing Water Uptake By Plants Under Desert Conditions, H. K. Qashu, D. D. Evans, R. S. Hanks, M. L. Wheeler
Soil Factors Influencing Water Uptake By Plants Under Desert Conditions, H. K. Qashu, D. D. Evans, R. S. Hanks, M. L. Wheeler
Memorandum
No abstract provided.
Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, Ting H. Hsiao
Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, Ting H. Hsiao
Memorandum
No abstract provided.
Colony Characters Of Termites As Related To Population Density And Habitat, W. L. Nutting, M. I. Haverty, J. P. Lafage, R. V. Carr
Colony Characters Of Termites As Related To Population Density And Habitat, W. L. Nutting, M. I. Haverty, J. P. Lafage, R. V. Carr
Memorandum
No abstract provided.
Demography, Foraging Activity Of Leaf-Cutter Ants, Acromyrmex Versicolor, In Relation To Colony Size And Location, Season, Vegetation And Temperature, F. G. Werner, S. L. Murray
Demography, Foraging Activity Of Leaf-Cutter Ants, Acromyrmex Versicolor, In Relation To Colony Size And Location, Season, Vegetation And Temperature, F. G. Werner, S. L. Murray
Memorandum
No abstract provided.
Proteolytic Activity Of Soil Microorganisms, Robert T. O'Brien
Proteolytic Activity Of Soil Microorganisms, Robert T. O'Brien
Memorandum
No abstract provided.
Aquatic Macroinvertebrates Of The Playa, G. Richardson, C. R. Ward, E. W. Huddleston
Aquatic Macroinvertebrates Of The Playa, G. Richardson, C. R. Ward, E. W. Huddleston
Memorandum
No abstract provided.
Statistical Analysis Of Desert Rock Distributions, Eugene Richard Heyman
Statistical Analysis Of Desert Rock Distributions, Eugene Richard Heyman
Memorandum
No abstract provided.
Data Summary For Aquatic Macroinvertebrates, L. G. Richardson, M. D. Merritt, C. R. Ward
Data Summary For Aquatic Macroinvertebrates, L. G. Richardson, M. D. Merritt, C. R. Ward
Memorandum
No abstract provided.
Transfer Of 32p From The Gastrointestinal Tract To Flesh As An Index Of Digestive Rate In The Desert Pupfish (Cyprindon Nevadensis), James Deacon
Memorandum
No abstract provided.
Dynamics And Productivity Of Aquatic Invertebrates In A Desert Environment, A. R. Gaufin, J. Stanford, E. Clubb, E. Nisonger
Dynamics And Productivity Of Aquatic Invertebrates In A Desert Environment, A. R. Gaufin, J. Stanford, E. Clubb, E. Nisonger
Memorandum
No abstract provided.
Reports Of 1971 Progress Volume 1 Central Studies, U.S. International Biological Program
Reports Of 1971 Progress Volume 1 Central Studies, U.S. International Biological Program
Progress reports
No abstract provided.
Reports Of 1971 Progress Volume 5 Aquatic Studies, U.S. International Biological Program
Reports Of 1971 Progress Volume 5 Aquatic Studies, U.S. International Biological Program
Progress reports
No abstract provided.
Assimilation, Metabolism And Growth Of Utah Chub, Gila Atraria, F.C. Cheng, R.L. Wallace, T.C. Bjornn, C. Macphee
Assimilation, Metabolism And Growth Of Utah Chub, Gila Atraria, F.C. Cheng, R.L. Wallace, T.C. Bjornn, C. Macphee
Progress reports
No abstract provided.
Environment And Communiy Organization In Grasslands Of Canyonlands National Park, Edgar F. Kleiner, K. T. Harper
Environment And Communiy Organization In Grasslands Of Canyonlands National Park, Edgar F. Kleiner, K. T. Harper
Canyonlands Research Bibliography
Sixty uniformly distributed stands in adjacent areas, 40 in Virginia Park (virgin) and 20 in Chesler Park (grazed), were analyzed. Cryptogamic and vascular species were recorded; cover was analyzed by the point sampling method, and frequency by means of 25 quadrats (each 0.125 m^2) per stand. The prevalent species (26 in Virginia, 23 in Chesler) were selected on the basis of a constancy-times-frequency index. Interspecific association patterns were determined by means of simple procedures based on quadrat frequency values for each species in the individual stands. Major environmental variables were recorded at each stand, and soil samples from four depths …
An Argument For The Open Ocean Siting Of Coastal Thermal Electric Plants, Clarence M. Tarzwell
An Argument For The Open Ocean Siting Of Coastal Thermal Electric Plants, Clarence M. Tarzwell
United States Environmental Protection Agency: Publications
A great deal of research is yet to be done before we will definitely know all the effects of thermal electric generating plants. It is evident, however, that the chlorination of the intake water is definitely lethal to a high percentage of planktonic and other organisms; that thermal shock is detrimental to some of the more sensitive forms; that the continued exposure to high temperatures after thermal shock is lethal to many forms, especially the zooplankton; that the screening and turbulence in such plants is lethal to larval fishes and several invertebrates, and that immense amounts of waters are put …
An Embryonic Forestry Program In Coastal British Columbia-Preparation For Management, M Crown
An Embryonic Forestry Program In Coastal British Columbia-Preparation For Management, M Crown
Yale School of the Environment Bulletin Series
No abstract provided.
A Simulation Model For The Management Of Sandhill Cranes, Richard S. Miller, George S. Hochbaum, Daniel B. Botkin
A Simulation Model For The Management Of Sandhill Cranes, Richard S. Miller, George S. Hochbaum, Daniel B. Botkin
Yale School of the Environment Bulletin Series
No abstract provided.
A Simulation Model For The Management Of Sandhill Cranes, Richard S. Miller, George S. Hochbaum, Daniel B. Botkin
A Simulation Model For The Management Of Sandhill Cranes, Richard S. Miller, George S. Hochbaum, Daniel B. Botkin
Yale School of the Environment Bulletin Series
No abstract provided.
Agriculture And Pollution In Western Australia. Part 1. Background, C V. Malcolm
Agriculture And Pollution In Western Australia. Part 1. Background, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
For centuries there has been awareness of pollution but it has received dramatic publicity in recent years.
In Western Australia, provisions for its control are written into the Health Act and many other Acts besides the Environmental Protection Act of 1971.
A number of factors have acted worldwide and locally to increase awareness and concern about pollution, and to justify careful examination of the problems it causes.
Dust Storms Cause Yield Losses, Department Of Agriculture, Western Australia, C. H. Trotman
Dust Storms Cause Yield Losses, Department Of Agriculture, Western Australia, C. H. Trotman
Journal of the Department of Agriculture, Western Australia, Series 4
Farmers and research workers are well aware that heavy grazing during summer loosens and exposes soil to the action of strong winds and summer thunder storms. They also realise that dust storms mean soil loss from paddocks, but until now there has been little idea of the effect of these storms on crop yields in subsequent seasons.
Wastewater Treatment Plant Control, David Milton Knowles
Wastewater Treatment Plant Control, David Milton Knowles
Retrospective Theses and Dissertations
This report is the result of investigation of the feasibility of increasing the use of autamatic controls at the Florida Technological University Wastewater Treatment Plant. This investigation was to include a literature search and visits to wastewater treatment plants. During the writers course of study, he was privileged to make a series of tests of a residual chlorine analyzer which was made in the school shop. Since this work was closely related to automatic controls the data are included in this report.
A Proposed Approach To Protect Wastewater Biological Treatment Plants Against Toxic Contaminants, Joseph M. Phillips
A Proposed Approach To Protect Wastewater Biological Treatment Plants Against Toxic Contaminants, Joseph M. Phillips
Retrospective Theses and Dissertations
No abstract provided.
Solid Waste Management At Florida Technological University, Robert F. Hever
Solid Waste Management At Florida Technological University, Robert F. Hever
Retrospective Theses and Dissertations
This paper is a report on a study of the management of solid wastes at Florida Technological University (FTU). This study endeavors to provide a basis for effective planning for disposal of FTU's solid wastes, both in the next few years and at the time of maximum FTU population. Essentially, the study affirms that the present system of refuse collection by a private contractor is the best method of disposal, with the possibility that recycling of mixed paper may become feasible at some future time.
Remote Sensing Of Environmental Parameters, Wendell Princeton Perkins
Remote Sensing Of Environmental Parameters, Wendell Princeton Perkins
Retrospective Theses and Dissertations
Atmospheric pollution in some degree has been around since time began. In recent times it has reached levels in some areas which proved to be harmful to man's health. A brief history review of these occurrences is presented. Laws have been enacted to combat this threat. A brief review of these laws is presented. Instruments for remote sensing of polluting sources are being developed to monitor ambient air quality and aid in enforcing these laws. A review of the techniques employed and the present state of the art is explored. Available instruments are presented in section III-5.
Localized Wastewater Treatment Facilities, Robert Russell Garrett
Localized Wastewater Treatment Facilities, Robert Russell Garrett
Retrospective Theses and Dissertations
The report describes an alternative to the use of septic tanks for invidual dwellings. The major problems confronting the larger wastewater treatment plants (0.012 to 10 million gallons per day) in central Florida are also discussed. Solutions in this report are for individual and multi-unit dwelling treatment systems (to 0.06 MGD). these units can provide 90% biochemical oxygen demand (BOD) and suspended solids (SS) removal in accord with new state and county regulations. A comparison of the large versus the small plants reveals that small innovative plants, though more expensive, are more environmentally sound than the poorly operated large facilities. …
Research Into Modular Construction, Richard L. Tash
Research Into Modular Construction, Richard L. Tash
Retrospective Theses and Dissertations
No abstract provided.