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Environmental Sciences

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Articles 51061 - 51090 of 52400

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Radiative Environment And The Surface Temperature On A Microscale In A Sagebrush Biome, Inge Dirmhirn Jan 1972

Radiative Environment And The Surface Temperature On A Microscale In A Sagebrush Biome, Inge Dirmhirn

Memorandum

No abstract provided.


Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T. C. Tucker, R. L. Westerman Jan 1972

Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T. C. Tucker, R. L. Westerman

Memorandum

No abstract provided.


Role Of Algae In Crust Formation And Nitrogen Cycling In Desert Soils, Raymond I. Lynn, Roy E. Cameron Jan 1972

Role Of Algae In Crust Formation And Nitrogen Cycling In Desert Soils, Raymond I. Lynn, Roy E. Cameron

Memorandum

No abstract provided.


Assimilation, Metabolism And Growth Of Utah Chub, Gila Artaria, F. C. Cheng, R. L. Wallace, T. C. Bjornn, C. Macphee Jan 1972

Assimilation, Metabolism And Growth Of Utah Chub, Gila Artaria, F. C. Cheng, R. L. Wallace, T. C. Bjornn, C. Macphee

Memorandum

No abstract provided.


The Colorado Plateau, Robert Durrenberger Jan 1972

The Colorado Plateau, Robert Durrenberger

Canyonlands Research Bibliography

The Colorado Plateau was one of the last areas in the United States to be developed economically. Before the 1880s it was virtually empty except for Indians. Today the vast scenic and energy resources of the area are under development, and projections for future development are frightening. Problems of land use management are directly related to the fragmented nature of landholdings. Present methods of consolidation are inadequate, and new approaches to the organization of space must be devised if further degradation of the environment is to be prevented.


Fisheries Report No. 10 - An Investigation Into The Status Of Introduced Trout (Salmo Spp.) In Western Australia, Dr N. M. Morrissy Jan 1972

Fisheries Report No. 10 - An Investigation Into The Status Of Introduced Trout (Salmo Spp.) In Western Australia, Dr N. M. Morrissy

Fisheries Research Reports

Both brown (Salmo trutta L.) and rainbow (S. gairdnerii trout Richardson) have been introduced into inland waters of the south-west of Western Australia to provide an amateur sport fishery on a gamefish. The large indigenous marron (Cherax tenuimanus Smith) is present in most of these waters. The only large native fish present is the cobbler (Tand- anus bostocki Whitley) which, while highly edible like the marron, has no game-fish qualities.

Hatchery production of trout for stocking waters has been centred at Pemberton in the lower south-west since 1931 when Mr. Cyril Glew, acting in a private capacity, succeeded in hatching …


Water Resources Of Part Of Canyonlands National Park, Southeastern Utah, C. T. Sumsion, E. L. Bolke Jan 1972

Water Resources Of Part Of Canyonlands National Park, Southeastern Utah, C. T. Sumsion, E. L. Bolke

Canyonlands Research Bibliography

Canyonlands National Park is in about the center of the Canyon Lands section of the Colorado Plateaus physiographic province in southeastern Utah. The part of the park discussed embraces an area of about 400 square miles comprising isolated mesas, precipitous canyons, and dissected broad benches near the confluence of the Green and Colorado Rivers, the only perennial streams in the area. The climate is arid to semiarid; normal annual precipitation ranges from less than 8 to about 10 inches. Potential evapotranspiration is about 41 inches annually.

Geology of the park is characterized by nearly horizontal strata that dip gently northward. …


Reports Of 1971 Progress Volume 2 Terrestrial Validation Studies Part I. Methodological, U.S. International Biological Program Jan 1972

Reports Of 1971 Progress Volume 2 Terrestrial Validation Studies Part I. Methodological, U.S. International Biological Program

Progress reports

No abstract provided.


Reports Of 1971 Progress Volume 4 Terrestrial Process Studies, U.S. International Biological Program Jan 1972

Reports Of 1971 Progress Volume 4 Terrestrial Process Studies, U.S. International Biological Program

Progress reports

No abstract provided.


Validation Studies And Bacterial Mineralization Of Organic Carbon At Locomotive Springs, J. Anne Holman, F. W. Post, I. Walkiw Jan 1972

Validation Studies And Bacterial Mineralization Of Organic Carbon At Locomotive Springs, J. Anne Holman, F. W. Post, I. Walkiw

Memorandum

No abstract provided.


Curlew Valley Validation Site Report, David F. Balph Jan 1972

Curlew Valley Validation Site Report, David F. Balph

Memorandum

No abstract provided.


Tucson Validation Sites Report, John L. Thames Jan 1972

Tucson Validation Sites Report, John L. Thames

Memorandum

No abstract provided.


Rock Valley Validation Site Report, Frederick B. Turner Jan 1972

Rock Valley Validation Site Report, Frederick B. Turner

Memorandum

No abstract provided.


Gas Exchange And Productivity For Opuntia Spp., I. P. Ting, H. B. Johnson, S. R. Szarek, G. D. Brum Jan 1972

Gas Exchange And Productivity For Opuntia Spp., I. P. Ting, H. B. Johnson, S. R. Szarek, G. D. Brum

Memorandum

No abstract provided.


Productivity And Water Stress In Cacti, Duncan T. Patten Jan 1972

Productivity And Water Stress In Cacti, Duncan T. Patten

Memorandum

No abstract provided.


Rate Of Transport Of Photosynthate To Root Systems Of Desert Shrubs, A. Wallace, S. Bamberg Jan 1972

Rate Of Transport Of Photosynthate To Root Systems Of Desert Shrubs, A. Wallace, S. Bamberg

Memorandum

No abstract provided.


Biomass And Nutrient Dynamics Of Some Major Cold Desert Shrubs, Neil E. West Jan 1972

Biomass And Nutrient Dynamics Of Some Major Cold Desert Shrubs, Neil E. West

Memorandum

No abstract provided.


Water Balance Techniques I. Sampling Soil Moisture Changes Ii. Channel Transmission Losses, T. Sammis, H. Qashu, J. Ryan, J. Thames Jan 1972

Water Balance Techniques I. Sampling Soil Moisture Changes Ii. Channel Transmission Losses, T. Sammis, H. Qashu, J. Ryan, J. Thames

Memorandum

No abstract provided.


Biology Of Nematodes In Desert Ecosystems, R. Mankau, S. A. Sher Jan 1972

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

Memorandum

No abstract provided.


Development Of Techniques For Estimating Biomass Of Desert Inhabiting Invertebrate Animals, G. L. Bender, J. Macmahon, S. Szerlip Jan 1972

Development Of Techniques For Estimating Biomass Of Desert Inhabiting Invertebrate Animals, G. L. Bender, J. Macmahon, S. Szerlip

Memorandum

No abstract provided.


Evaluation Of Trap Stimulus In Relation To Probability Of Rodent Capture, D. F. Balph, R. D. Anderson Jan 1972

Evaluation Of Trap Stimulus In Relation To Probability Of Rodent Capture, D. F. Balph, R. D. Anderson

Memorandum

No abstract provided.


Evaluation Of Techniques For Estimating Population Sizes Of Desert Rodents, C. D. Jorgensen, H. D. Smith, D. T. Scott Jan 1972

Evaluation Of Techniques For Estimating Population Sizes Of Desert Rodents, C. D. Jorgensen, H. D. Smith, D. T. Scott

Memorandum

No abstract provided.


Diets, Food Preferences, And Reproductive Cycles Of Some Desert Rodents, R. P. Balda, G. C. Bateman, T. A. Vaughan Jan 1972

Diets, Food Preferences, And Reproductive Cycles Of Some Desert Rodents, R. P. Balda, G. C. Bateman, T. A. Vaughan

Memorandum

No abstract provided.


Food Habits Of Northern Rodents And Jackrabbits, W. E. Saul Jan 1972

Food Habits Of Northern Rodents And Jackrabbits, W. E. Saul

Memorandum

No abstract provided.


Population Studies Of Desert Cottontail, Black-Tailed Jackrabbit And Allen's Jackrabbit In The Sonoran Desert, C. R. Hungerford, C. H. Lowe, J. P. Gray Jan 1972

Population Studies Of Desert Cottontail, Black-Tailed Jackrabbit And Allen's Jackrabbit In The Sonoran Desert, C. R. Hungerford, C. H. Lowe, J. P. Gray

Memorandum

No abstract provided.


Role Of Annual Grasses And Shrubs In Nutrient Cycling Of Great Basin Plant Communities, C. M. Mckell, L. G. Kline Jan 1972

Role Of Annual Grasses And Shrubs In Nutrient Cycling Of Great Basin Plant Communities, C. M. Mckell, L. G. Kline

Memorandum

No abstract provided.


Growth And Development Of Sitanion Hystrix And Poa Sandergii, M. Hironaka, E. W. Tisdale Jan 1972

Growth And Development Of Sitanion Hystrix And Poa Sandergii, M. Hironaka, E. W. Tisdale

Memorandum

No abstract provided.


Effects Of Early And Late Irrigation In The Net Productivity Of Oryzopsis Hymenoids In Eastern Idaho, Lorentz C. Pearson Jan 1972

Effects Of Early And Late Irrigation In The Net Productivity Of Oryzopsis Hymenoids In Eastern Idaho, Lorentz C. Pearson

Memorandum

No abstract provided.


Effects Of Environmental Factors On Rates Of Primary Production Of Two Desert Grass Species, Gary L. Cunningham, Fred R. Balding Jan 1972

Effects Of Environmental Factors On Rates Of Primary Production Of Two Desert Grass Species, Gary L. Cunningham, Fred R. Balding

Memorandum

No abstract provided.


Gaseous Exchange In Mohave Desert Shrubs, S. Bamberg, A. Wallace Jan 1972

Gaseous Exchange In Mohave Desert Shrubs, S. Bamberg, A. Wallace

Memorandum

No abstract provided.