Index Catalog // ScholarsArchive@OSU

The production of dissolved organic carbon (DOC) over time with change in substrate type, temperature, and mineral soil inclusion

Creator:: Stanton, Alexandria H.
Abstract:: Dissolved Organic Carbon (DOC) originates from organic matter. Climate and vegetation have been found to alter DOC production. The goal of this study was to determine where the differences in DOC production originate from. Mineral soil and substrate including maple leaves, needles, old wood, and sticks were collected from the...
Resource Type:: Honors College Thesis
Full Text:: _____________________________________________________________________ Kimberly Townsend, Committee Member, representing Crop and Soil Sciences

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:: (250 – 2000 μm) form around fresh residue forming coarse intraggregate particulate organic matter

The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

Creator:: Holub, Scott M.
Abstract:: Forests in the Pacific Northwest receive very little nitrogen through atmospheric deposition and thus studying the nitrogen cycle in this region can provide insights into how the unpolluted nitrogen cycle functions. I examined the fate of organic nitrogen versus inorganic nitrogen and the effect of tamlins on N retention by...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Scott M. Holub for the

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:: Offer, Fox Peterson, Hannah Smith, Kim Townsend, Stephanie Vargas, Jenn Wig, and Jenn Young. Thank you

Characterization of soil carbon and nitrogen pools following a decade of detritus manipulation in a temperate coniferous forest

Creator:: Wilson, Lea I.
Abstract:: Soil organic matter (SOM) is the result of the balance between decomposition and incorporation of detritus from both above and below ground sources into the soil. It composes only a fraction of the soil by mass but it is one of the most critical components. The Detritus Input and Removal...
Resource Type:: Honors College Thesis
Full Text:: granted unfailing support and friendship in the form of Kimberly Townsend. Though it was I who was

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:: for their extensive knowledge and friendly assistance in Angel White’s lab. Thanks to Kim Townsend

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:: contributions of soils, time, and analytical expertise, to Kim Townsend, Virginia Murphey, Kristen Peterson

Carbon cycling and priming of soil organic matter decomposition in a forest soil following glucose additions

Creator:: Diaz, David D.
Abstract:: Soils are a globally significant carbon (C) pool and have the potential to respond to elevated CO2 and environmental changes through positive feedback cycles that enhance the turnover of soil organic matter (SOM). Understanding the mechanisms governing the turnover of SOM is particularly important for modeling the fate of C...
Resource Type:: Masters Thesis
Full Text:: gas samples. The field and lab contributions of David Myrold, Jay Frentress, Kim Townsend, Bruce

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:: , Fox Peterson and Kim Townsend for countless pieces of advice and favors, Markus Kleiber for the use

Dissolved Organic Carbon Production and Flux from Long Term Litter Manipulations in a Pacific Northwest Old-Growth Forest

Creator:: Evans, Lucas R.
Abstract:: Dissolved organic carbon (DOC) flux is an important mechanism to convey soil carbon (C) from aboveground organic debris (litter) to deeper soil horizons and can influence the formation of stable soil organic carbon (SOC) compounds. Aboveground litter quantity and quality was manipulated for 20-years in an old-growth Douglas fir forest...
Resource Type:: Honors College Thesis
Full Text:: , 12⁰10’ W, 726 m elevation). Other significant species include Western Red Cedar (Thuja plicata

ScholarsArchive@OSU

The production of dissolved organic carbon (DOC) over time with change in substrate type, temperature, and mineral soil inclusion

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

The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

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

Characterization of soil carbon and nitrogen pools following a decade of detritus manipulation in a temperate coniferous forest

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

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

Carbon cycling and priming of soil organic matter decomposition in a forest soil following glucose additions

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

Dissolved Organic Carbon Production and Flux from Long Term Litter Manipulations in a Pacific Northwest Old-Growth Forest

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