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Articles 661 - 672 of 672
Full-Text Articles in Physical Sciences and Mathematics
Historical Survey Of The Van Duzen River Basin, Susie Van Kirk
Historical Survey Of The Van Duzen River Basin, Susie Van Kirk
Susie Van Kirk Papers
This paper is an edited version of two separate reports. The first, Van Duzen Basin Atlas, California State Department of Water Resources and the County of Humboldt, was prepared under the direction of Don Tuttle, Resources Analyst for Humboldt County (listed as "Van Duzen Basin Study: Historical Research on Houses in Hydesville-Carlotta Area"). This version, Van Duzen Management Plan, California Department of fish and Game, was directed by Environmental Research Consultants, Inc., Arcata.
Improving Instruction In Environmental Studies Through Development Of College Lake As An Instructional Laboratory, Lynchburg College
Improving Instruction In Environmental Studies Through Development Of College Lake As An Instructional Laboratory, Lynchburg College
Department of Environmental Science, Studies, and Sustainability
No abstract provided.
Interactions Of Pesticides And Phytoplankton, Pamela H. Philyaw
Interactions Of Pesticides And Phytoplankton, Pamela H. Philyaw
Retrospective Theses and Dissertations
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 …
Water Resources Planning And Social Goals: Conceptualization Toward A New Methodology, D. Peterson, H. Caulfield, R. D'Arge, D. Gordon, M Marts, T. Roefs, R. Roelofs
Water Resources Planning And Social Goals: Conceptualization Toward A New Methodology, D. Peterson, H. Caulfield, R. D'Arge, D. Gordon, M Marts, T. Roefs, R. Roelofs
Reports
A modeling concept relating water resource use to
Evaluation Of Molting Areas Of Great Basin Canada Geese, Paul D. Arneson
Evaluation Of Molting Areas Of Great Basin Canada Geese, Paul D. Arneson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Environmental factors at Neponset and Woodruff Narrows reservoirs were evaluated to determine their effects on molting Canada geese. More geese utilized Woodruff Narrows. Geese apparently favored the larger expanse of open water and adequate food supply.
Most of the molting geese were from the Bear River drainage. Some geese came from scattered areas in Utah, Idaho, Wyoming, and Montana. After molting, the geese flew to migration staging areas in southeastern Idaho before migrating to wintering areas in southern California and Arizona.
Females outnumbered males by 6 percent. The mean annual mortality rate for adult geese was 42 percent. Recovery rates …
Ecological Planning Workshop Poster April, 1970, Ian Mcharg, Risd Archives
Ecological Planning Workshop Poster April, 1970, Ian Mcharg, Risd Archives
Ecology and Environment
Ecological Planning Workshop Poster by Ian McHarg. April 24, 1970, RISD Auditorium.
Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives
Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives
Ecology and Environment
RISD Landscape Architecture Study to Save Block Island Article from Designer's News, May 19, 1969 student newspaper.
The Influence Of Soil Moisture Regimes And Atmospheric Environments On Transpiration And The Energy Status Of Water In Plants, Sampatrao A. Gavande
The Influence Of Soil Moisture Regimes And Atmospheric Environments On Transpiration And The Energy Status Of Water In Plants, Sampatrao A. Gavande
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Plant responses to different soil moisture regimes have been extensively studied. Because of interactions between the soil, plant and climatic factors, few convincing generalizations concerning the influence of soil water on the transpiration of water by plants have been established. Generally single factors or at most the interaction of two have been studied at any one time. Useful theories describing the conditions of water retention in plant tissues and movement of water through plants have been proposed. Equally useful theories have been suggested for describing the retention and transmission of water in soil. The integration of these theories and their …
Relations Between Transpiration, Leaf Temperatures, And Some Environmental Factors, Ronald Kay Tew
Relations Between Transpiration, Leaf Temperatures, And Some Environmental Factors, Ronald Kay Tew
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Transpiration is the loss of water in vapor form from a plant. This is essentially the same process as evaporation except that it is modified by plant structure. Large quantities of water are removed from the soil, transferred through the conducting tissues of the plant, and dissipated into the air each day. As soon as the water is lost to the atmosphere, it becomes unavailable for human use.
The Working Environment And The Health Of Workers In Bituminous Coal Mines, Non-Ferrous Metal Mines, And Nonferrous Metal Smelters In Utah, The Division Of Industrial Hygiene; National Institute Of Health; U.S. Public Health Service, The Utah State Board Of Health
The Working Environment And The Health Of Workers In Bituminous Coal Mines, Non-Ferrous Metal Mines, And Nonferrous Metal Smelters In Utah, The Division Of Industrial Hygiene; National Institute Of Health; U.S. Public Health Service, The Utah State Board Of Health
Elusive Documents
No abstract provided.
The Environment Of The Prairie, J. E. Weaver, W. J. Himmel
The Environment Of The Prairie, J. E. Weaver, W. J. Himmel
Conservation and Survey Division
No abstract provided.