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Filtering by: DOI 10.2136/vzj2011.0048 Remove constraint DOI: 10.2136/vzj2011.0048 Committee Member Dragila, Maria Remove constraint Committee Member: Dragila, Maria

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Exploring Colloid Transport in Unsaturated Porous Media Using X-Ray Microtomography

Creator:

Brueck, Chris L.

Abstract:

Understanding the mechanisms controlling colloid transport and deposition in the vadose zone is an important step in protecting our water resources. Colloid transport in unsaturated porous media was studied using X-Ray Microtomography (XMT), which is a non-destructive imaging technique that provides three-dimensional images at a resolution on the order of...

Resource Type:

Masters Thesis
The Impact of Freeze-Thaw Cycles to the Physical and Biogeochemical Properties of Alaskan Permafrost Soils

Creator:

Rooney, Erin C.

Abstract:

Arctic warming is exposing thawing permafrost to repeated freeze-thaw, a disruptive process that can alter soil biogeochemistry and physical structure. To investigate the impact of permafrost exposure to freeze-thaw, soil response was tested across three scales: 2.5 cm³ aggregates, a forested hillslope, and two sites at contrasting latitudes. XCT imaging...

Resource Type:

Dissertation
Scaling, ash-driven bistability, and other agents of soilscape genesis discovered while digitally mapping soils of the Blue Mountains, Oregon

Creator:

Almquist, Vance Warner

Abstract:

This dissertation reports on four related, though separate projects. The first project details the process of carrying out a digitally augmented soil mapping (DSM) effort alongside an ongoing survey in Oregon's Ochoco National Forest (ONF) using a Random Forest algorithm. The second chapter describes a initial soil survey in Oregon's...

Resource Type:

Dissertation
Ecohydrological mediation of water budget partitioning and time scales of subsurface flow in a seasonally semi-arid grassland

Creator:

Pangle, Luke A.

Abstract:

Understanding how the interactions and feedbacks between plant function, climate, and soils ultimately affects the terrestrial water balance and subsurface flow processes is major challenge in scientific hydrology. This dissertation summarizes the findings of a manipulative climate warming experiment, an observational field study that utilized stable-isotope tracers, and associated modeling...

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Dissertation

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Academic Affiliation

Crop and Soil Science2
Chemical, Biological and Environmental Engineering1

Advisor

Bailey, Vanessa L.1
Kleber, Markus1
Lybrand, Rebecca A.1
Mcdonnell, Jeffrey J.1
Noller, Jay S.1
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2014 to 2022

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Committee Member

Dragila, Maria[remove]4
Bachelet, Dominique1
Brooks, Renee1
Colwell, Fredrick1
Gregg, Jillian W.1
more Committee Members »

Creator

Almquist, Vance Warner1
Brueck, Chris L.1
Pangle, Luke A.1
Rooney, Erin C.1

Date

Date range begin – Date range end

Current results range from 2013 to 2022

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Decade

2020-20291
2010-20193

Degree Field

Soil Science2
Environmental Engineering1
Water Resources Science1

Degree Level

Doctoral3
Master's1

Degree Name

Doctor of Philosophy (Ph.D.)3
Master of Science (M.S.)1

File Format

pdf1

Language

English [eng]4

License

All rights reserved4

Non-Academic Affiliation

Oregon State University. Graduate School2

Peer Reviewed

No4

Resource Type

Dissertation3
Masters Thesis1

Rights Statement

In Copyright4

Subject

Colloids -- Transport properties1
Digital soil mapping1
Ecohydrology1
Evapotranspiration1
Grassland ecology1
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