Now showing items 1-10 of 432
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Theoretical solar data for the IBP Grassland Biome sites in North America: Osage Site
Contributor:Smith, Freeman M. (Freeman Minson), 1939-; Swift, David M. (David Munson)
Some observations on foreign grassland and related research: April - July 1970 Van Dyne trip report
Contributor:Van Dyn, George M., 1932-
Nutrient and energy flows through soil microbial biomass
Contributor:Paul, Eldor A.; Voroney, R. P.
The recognition and recent studies of the role of living organisms (biomass) in carbon, nitrogen and phosphorus flows in nature have stressed the role of the microorganisms as sources and sinks for nutrients, in addition ...
Use of tracers and computer simulation techniques to assess mineralization and immobilization of soil nitrogen
Contributor:Paul, Eldor A.; Juma, N. G.
The objectives of this investigation were to develop and test concepts of microbial growtth and decay in soil and to study the mineralization and inmobilization of soil N using tracer and computer simulation techniques.
Turnover of microbial biomass, plant residues and soil humic constituents under field conditions
Contributor:McGill, W. B.; Paul, Eldor A.
The effects of soil texture and climatic conditions on turnover rates of plant residues were measured under field conditions. Carbon-14- and 15N-labelled straw made it possible to follow degradation rates of the original ...
Evapotranspiration in the tropics
Contributor:Schulz, Edmond F.; Hossain, Aolad
A study was made of monthly rainfall and runoff over a 105,000 square kilometer watershed in northern Thailand. The function of the watershed in producing the runoff hydrograph was simulated using a type of Stanford Watershed ...
Memoranda of agreement and procedures for working on federal lands of the USDA
Contributor:Nell, L. G.; Jameson, Donald A.
This technical report contains examples of agreements, contracts and procedures and the resulting official paperwork that outlines the cooperation between Colorado State University, the United States Department of Agriculture ...
Grassland Biome : general description of the Pawnee Site
Contributor:Jameson, Donald A.
The Pawnee Site, the Intensive Site location of the Grassland Biome, lies within the western division of the Pawnee National Grasslands which is administered by the U.S. Forest Service. At the western edge of the Pawnee ...
Comparative diversity of ammonia oxidizer 16S rRNA gene sequences in native, tilled, and successional soils
Contributor:Kowalchuk, George A.; Bruns, Mary Ann; Stephen, John R.; Paul, Eldor A.; Prosser, James I.
Autotrophic ammonia oxidizer (AAO) populations in soils from native, tilled, and successional treatments at the Kellogg Biological Station Long-Term Ecological Research site in southwestern Michigan were compared to assess ...
Conversion of biovolume measurements of soil organisms, grown under various moisture tensions, to biomass and their nutrient content
Contributor:Van Veen, Johannes A.; Paul, Eldor A.
Direct microscopic measurements of biomass in soil require conversion factors for calculation of the mass of microorganisms from the measured volumes. These factors were determined for two bacteria, five fungi, and a yeast ...