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Filtering by: Academic Affiliation Crop and Soil Science Remove constraint Academic Affiliation: Crop and Soil Science Commencement Year 2018 Remove constraint Commencement Year: 2018

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Merging Field Work with Machine Learning : Exploring Andic Soil Development in the Cascade Range

Creator:

Osterloh, Kristopher Richard

Abstract:

Andic soils (aka Andisols) have unique properties that are important to society. For soil scientists, the genesis and taxonomy of Andisols is often confused because they can form in both volcanic and non-volcanic material. This dissertation seeks to address such confusion by looking at andic soil development in the Cascade...

Resource Type:

Dissertation
Exploring Soil-Landscape Relationships on the Pacific Slope of Monteverde, Costa Rica

Creator:

Hesson, Kevin M.

Abstract:

Landscape positions have been used to determine soil properties. My soil study in Monteverde on the Pacific slope of Costa Rica was designed to examine soil-landscape relationships for sites with various land use histories and management. Soil pits were dug at Nacimiento y Vida, Crandell, Curi-cancha, La Calandria, and Finca...

Resource Type:

Masters Thesis
Plot-Scale Field Investigation : Characterizing Water Motion in Sandy Agricultural Soils

Creator:

Nolasco, Stephanie M.

Abstract:

Irrigated agricultural production in sandy soils presents several unique challenges to growers, including naturally high permeability, low native water retention, as well as high rates of water drainage losses and leaching of chemicals to the shallow aquifers. This study is an initial investigation into water motion in the sandy agricultural...

Resource Type:

Masters Thesis
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
Breeding qualitative and quantitative traits for potatoes in the Columbia Basin

Creator:

Graebner, Ryan C.

Abstract:

The cultivated potato (Solanum tuberosum L.) is one of the world’s most important staple crops, ranked fourth after maize, rice, and wheat. While the potato’s success is due largely to its high yield, it also benefits from its broad global acceptance, and its ability to be used by the consumer...

Resource Type:

Dissertation
Measuring Electron Activity to Constrain the Role of Soil Structure in the Formation of Biogeochemical Heterogeneity

Creator:

Wanzek, Thomas

Abstract:

Soils have a critical role in global carbon (C) cycling, containing one of the largest fast-cycling carbon stocks on earth. Robust representation of soil organic matter dynamics in Earth System Models is critical for future climate prediction. Current C cycling models assume that all C cycling in non-hydric (i.e. ‘upland’)...

Resource Type:

Masters Thesis
Ancient Greek agricultural soils of the Venella River Valley, Metaponto, Italy : An exploratory analysis

Creator:

Carpenter, Burl L.

Abstract:

Approximately 2700 years ago, Greek settlers from the Northwestern Peloponnese region of Achaea emigrated to the central coast of Southern Italy along the Gulf of Taranto. The city they founded, Metapontum, served as an important center for Magna Graecia, the lands on the Southern Italic peninsula wholly populated by Hellenic...

Resource Type:

Masters Thesis

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Academic Affiliation

Crop and Soil Science[remove]7

Advisor

Noller, Jay S.2
Dragila, Maria I.1
Kleber, Markus1
Noller, Jay1
Reuter, Ronald J.1
more Advisors »

Commencement Year

2018[remove]7

Committee Member

Dragila, Maria2
Lybrand, Rebecca2
Clough, Sharyn1
Colwell, Fredrick1
Davis, Loren1
more Committee Members »

Creator

Almquist, Vance Warner1
Carpenter, Burl L.1
Graebner, Ryan C.1
Hesson, Kevin M.1
Nolasco, Stephanie M.1
more Creators »

Contributor

Hatten, Jeffery A.1
Noller, Jay S.1
Reuter, Ronald J.1
Robinson, Douglas W.1

Date

Date range begin – Date range end

Current results range from 2017 to 2018

View distribution

Decade

2010-20197

Degree Field

Soil Science6
Crop Science1

Degree Level

Master's4
Doctoral3

Degree Name

Master of Science (M.S.)4
Doctor of Philosophy (Ph.D.)3

Language

English [eng]7

License

All rights reserved7

Non-Academic Affiliation

Oregon State University. Graduate School2
Oregon State University. Agricultural Experiment Station1

Peer Reviewed

No7

Resource Type

Masters Thesis4
Dissertation3

Rights Statement

In Copyright7

Subject

Digital soil mapping1
Forest restoration1
Guanacaste, Cordillera de (Costa Rica)1
Humus1
Landscapes1
more Subjects »

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