Index Catalog // ScholarsArchive@OSU

Homogenization of Detrital Leachate in an Old-Growth Coniferous Forest, OR : DOC Fluorescence Signatures in Soils Undergoing Long-Term Litter Manipulations

Creator:: Strid, April R.
Abstract:: Soil dissolved organic carbon (DOC) is a small but crucial part of the forest carbon cycle. Characterizing the relationship between detrital inputs and soil DOC chemistry is crucial to understanding the ultimate fate of root carbon, fallen wood and needles. Chemical differences in the DOC pool may help to explain...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF April R. Strid for

The Benefits of Time: Characterizing Intra-and Inter-Annual Variability in Oregon Wetland Ecosystems Using the Landsat Spectral-Temporal Domain

Creator:: Fickas, Kate C.
Abstract:: The use of Landsat data has historically been constrained to spectral and spatial information derived from a carefully selected image or set of images. However, free and open access to Landsat imagery combined with advances in data storage and computing are revolutionizing how the Landsat temporal domain is used to...
Resource Type:: Dissertation
Full Text:: Kate C. Fickas for the degree of Doctor of Philosophy in Forest Ecosystems and Society

Bioactive and Biocompatible Coatings for Endotoxin Capture in Treatment of Sepsis

Creator:: Su, Jonathan
Abstract:: Sepsis is a blood infection caused by circulating pathogens and cell wall fragments that affects over 1 million patients per year in the United States. When bacterial cell membranes are lysed by antibiotics, cell wall fragments containing lipopolysaccharides (LPS) are released. As a result, the capture of LPS is critical...
Resource Type:: Honors College Thesis
Full Text:: Treatment of Sepsis Abstract approved:_____________________________________________________ Kate

Changes in Microbial Extracellular Enzyme Activity in Pacific Northwest Old-Growth Forest Soils After Wildfire

Creator:: Hughes, Abby
Abstract:: The soil microbiome drives nutrient transformation in forest soils and plays a critical role in the carbon (C) cycle of these ecosystems. Wildfires cause significant disturbance to ecosystems and are known to alter C sources available to microbes in forest soils. Summer wildfires in the Pacific Northwest are of growing...
Resource Type:: Honors College Thesis
Full Text:: : _____________________________________________________ Kate Lajtha The soil microbiome drives nutrient transformation in forest soils and plays a

Soil organic carbon response to six years of warming : assessing the impacts of altered diurnal temperature range

Creator:: Murphey, Virginia L. W.
Abstract:: There is a growing consensus that anthropogenic warming will impact soil organic matter (SOM). Globally, soil contains 2-3 times more carbon (C) than plants, and like plants, temperature induced change of SOM could have significant climate repercussions. Although, the majority of warming experiments have increased day and night temperatures equally,...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________________________________ Kate J. Lajtha There is a growing consensus that anthropogenic warming will impact soil

Surface-Initiated Click-Ready Bioactive Polymer Coatings: Synthesis and Characterization

Creator:: Yu, Bonan
Abstract:: Protein adsorption on blood contacting medical devices usually causes fouling and failure, and may promote clotting and undesirable immune responses. Hydrophilic polymer coatings in a dense, pendent “brush” conformation can resist protein adsorption on the surface while increasing biocompatibility. Such coatings can also be used to immobilize a variety of...
Resource Type:: Dissertation
Full Text:: Characterization. Abstract approved: ______________________________________________________ Kate

Effects of 20 years of litter and root manipulations on soil organic matter dynamics

Creator:: Wig, Jennifer D.
Abstract:: Globally, the forestry sector is the second largest contributor of greenhouse gases, and sustainable forest management is a major target of international environmental policy. However, there is the assumption underlying many policy recommendations that an increase in above-ground carbon stocks correspond to long term increases in ecosystem carbon stocks, the...
Resource Type:: Masters Thesis
Full Text:: : _________________________________________________________ Kate J. Lajtha Globally, the forestry sector is the second largest contributor of

Reactive polyphenols and dissolved nutrients in a nitrogen-limited headwater catchment, western Cascades, Oregon, USA

Creator:: Rasmussen, Janet K.
Abstract:: In undisturbed N-limited forested catchments, DON may represent over 90% of the total N lost in streams. Some ecologists have suggested that plant-derived reactive polyphenols may be responsible for DON binding and transport because polyphenol-protein complexes are known to precipitate out of solution, bind to mineral surfaces or organic matter...
Resource Type:: Masters Thesis
Full Text:: Headwater Catchment, Western Cascades, Oregon, USA Abstract approved: Kate Lajtha In

Investigation into the Hydrologic Separation of Bound and Mobile Water in Forest SoilUsing Isotopic Analysis

Creator:: DeGeorge, Dustin
Abstract:: How water moves through soils is of importance to studies of stream hydrology and biogeochemistry. Although translatory flow, which states how soil water is displaced by additional precipitation into streams, is a widely accepted model, Brooks et al. (2010) found evidence that challenged this model. They suggested that there are...
Resource Type:: Honors College Thesis
Full Text:: : ______________________________________________________ Kate Lajtha How water moves through soils is of importance to studies of stream hydrology and

Sources of Soil Carbon Loss from Soil Density Fractionation: Soluble Pools or Methodology?

Creator:: Gordon, Ester K.
Abstract:: Soil is the largest terrestrial store of carbon (C) making it a critical component of the global C cycle. To model global carbon budgets more accurately we need to understand dynamics and turnover of the many different functional soil C pools that exist in soil. Many different methods are used...
Resource Type:: Masters Thesis
Full Text:: Methodology? Abstract approved: ______________________________________________________ Kate

ScholarsArchive@OSU

Homogenization of Detrital Leachate in an Old-Growth Coniferous Forest, OR : DOC Fluorescence Signatures in Soils Undergoing Long-Term Litter Manipulations

The Benefits of Time: Characterizing Intra-and Inter-Annual Variability in Oregon Wetland Ecosystems Using the Landsat Spectral-Temporal Domain

Bioactive and Biocompatible Coatings for Endotoxin Capture in Treatment of Sepsis

Changes in Microbial Extracellular Enzyme Activity in Pacific Northwest Old-Growth Forest Soils After Wildfire

Soil organic carbon response to six years of warming : assessing the impacts of altered diurnal temperature range

Surface-Initiated Click-Ready Bioactive Polymer Coatings: Synthesis and Characterization

Effects of 20 years of litter and root manipulations on soil organic matter dynamics

Reactive polyphenols and dissolved nutrients in a nitrogen-limited headwater catchment, western Cascades, Oregon, USA

Investigation into the Hydrologic Separation of Bound and Mobile Water in Forest SoilUsing Isotopic Analysis

Sources of Soil Carbon Loss from Soil Density Fractionation: Soluble Pools or Methodology?

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