Index Catalog // ScholarsArchive@OSU

Creator:: Warren, Kristina
Abstract:: Tile drainage increases aeration in the root zone of poorly drained soils by accelerating water movement from the subsurface. Water movement is the main agent of chemical transport, either transporting soluble materials directly (e.g., nitrate) or by transporting the soil particles that bind adsorptive compounds (e.g., pesticides). The detection frequency...
Resource Type:: Masters Thesis

Creator:: Stewart, Ryan D.
Abstract:: Vertisols and other vertic-intergrade soils are found all over the globe, including many agricultural and urban areas. These soils are characterized by their cyclical shrinking and swelling behaviors, where bulk density and porosity distribution both vary as functions of time and/or soil moisture. In turn, alterations in physical soil parameters...
Resource Type:: Dissertation
Full Text:: a rapid and low-cost measurement of soil hydraulic properties. However, the interpretation of such

Creator:: Rockhold, Mark L.
Abstract:: An experimental and numerical modeling investigation was conducted to study interactions between microbial dynamics and transport processes in variably saturated porous media. These interactions are important in a variety of applied problems such as water and wastewater treatment, bioremediation, and oil-field recovery operations. These processes and interactions also have great...
Resource Type:: Dissertation
Full Text:: clay soil (model parameters from Leij et al.. 1999), clean 40/50 Accusand®, and repacked. biomass

Creator:: Keiluweit, Marco
Abstract:: This thesis explores open questions regarding molecular forms and interactions of natural and synthetic aromatic compounds present in soils and sediments. Plant biomass-derived black carbon (biochar) generated through incomplete natural and anthropogenic combustion processes is a major source of aromaticity in terrestrial ecosystems. Chapter one represents a detailed account of...
Resource Type:: Masters Thesis
Full Text:: Professor, representing Soil Science Head of the Department of Crop and Soil Science Dean of the

Creator:: Ambrowiak, Gloria M.
Abstract:: Many different models and mechanisms of water imbibition into soil have been described in the literature. Theoretical equations based on those models exist to predict how water will flow in porous media. These models can be useful, but have their weaknesses. Research on imbibition and infiltration into soils has mostly...
Resource Type:: Masters Thesis

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