Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Central Great Plains"”.
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A Paleosol-Derived Environmental Perspective on MIS 3 in the Central Great Plains
… stratigraphic unit prevalent throughout the Central Great Plains of North America and serves as an important underutilized archive of paleoenvironmental data. This study focuses on the GCF in central Kansas where it contains two cumulic paleosols and an intervening detrital unit, which have …
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The Impacts of Wind Farms on Cumulus Development in the Central Great Plains
Cumulus clouds have a net cooling effect on the surface radiative balance by reflecting more downwelling solar radiation than absorbing upwelling terrestrial radiation. As boundary layer cumuli form from buoyant, moist plumes ascending from the surface, their growth may be hindered by the turbulent …
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Cover crops to regenerate soils and increase profitability in dryland crop production in the semi-arid central Great Plains
… in NT dryland cropping systems of the semi-arid central Great Plains (CGP). Studies investigated 1) grazing and haying CCs as forage, 2) interactions of CCs and tillage [NT or occasional tillage (OT)], 3) CC mixture diversity, and 4) flexible fallow-replacement based on PAW and climate outlooks. …
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Molecular Diagnosis and Anthelmintic Control of Trichostrongyle and Toxicara nematodes in Bison bison Herds from the U.S.A. Central Great Plains
… age-categories covering 31 herds from 8 northcentral U.S.A. states. This is also the first bison study using PCR to identify genera of trichostrongyles in fecal samples. This survey involved collecting fecal samples and a questionnaires from participating bison producers. Fecal egg counts were …
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Regional whole plant and molecular response of Kochia scoparia to glyphosate
… scoparia have been identified throughout the central Great Plains, and the infested range is expanding rapidly. Glyphosate and Roundup Ready® crops form the foundation of no-till technology, which has considerably reduced water use and soil loss in arid to semi-arid regions of North America. …
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Cropping systems under water-limited conditions: effects of rotation and nitrogen management on yield, resource use efficiency, profitability, and soil properties
… in water-limited regions such as the Central Great Plains requires cropping systems that balance yield, resource-use efficiency, and economic viability. This thesis integrates results from field studies conducted at different temporal scales, location and under different …
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Consequences of nutrient enrichment for soil organic matter cycling in grasslands
… K. Furthermore, in a regional study in the US Central Great Plains, I found that N addition decreased microbial decomposition of SOM and tended to increase soil aggregation. Finally, in a laboratory study I found that decreased microbial biomass likely explains the decreased microbial …
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Quality control and analysis of an updated wind gust data set in the United States
… and non-thunderstorm wind speeds in the central Great Plains. Trends in median annual maximum wind gusts show a slight increasing trend, however, changes in ASOS averaging time and instrumentation, such as sonic anemometer installation, introduces three distinct eras in the data set. …
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Assessment of Hard Red Spring Wheat Germplasm for Germination in Sub-Optimal Temperatures
… characteristic of HRSW grown in the North Central Great Plains region. Fifty HRSW genotypes were evaluated for germination and growth rates at ten temperatures: 3, 5, 7, 9, 11, 13, 15, 17, 19, and 20 °C. Genotypes were replicated four times within each temperature treatment. Germination …
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Ecosystem Transformation Across a Changing Social Landscape: Landowner Perceptions and Responses to Woody Plant Encroachment
… been particularly problematic in the Southern Great Plains of the United States where the actions of private landowners are integral to sustaining grasslands. Increased diversity in landowners’ motivations for owning land have shifted the social landscape of rural areas necessitating a better …