Design and Testing of a Device to Separate Tightly-Bound and Mobile Water Pools in Soil

Honors College Thesis

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Citeable URL: https://ir.library.oregonstate.edu/concern/honors_college_theses/q524jq65r

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Attribute Name	Values
Creator	Madrigal, Justin Luis
Abstract	Water movement, from forest soil to streams, has traditionally been modeled by translatory flow. A hypothesis was presented by Brooks et al. (2010) suggesting that, in addition to translatory flow, there exists an immobile pool of water trapped in small pores with low matric potential. Comparisons of water stable isotope ratios between loosely-bound water and bulk soil water can provide additional evidence for this hypothesis. In this work the beginnings of a method for separating loosely-bound water from a soil core has been developed. It was found that, by centrifuging a soil core, sufficient water for mass spectrometry can be extracted at a given matric potential and held within a porous ceramic rod. This water can then be extracted from the ceramic using cryogenic vacuum distillation.
License	All rights reserved
Resource Type	Honors College Thesis
Date Available	2010-09-13T23:39:21+00:00
Date Issued	2010-08-20
Degree Level	Bachelor's
Degree Name	Honors Bachelor of Science (H.B.S.)
Degree Field	Bioengineering
Degree Grantor	Oregon State University
Commencement Year	2010
Advisor	Lajtha, Kate
Committee Member	Brooks, Renee
Non-Academic Affiliation	Oregon State University. Honors College
Rights Statement	In Copyright
Publisher	Oregon State University
Peer Reviewed	No
Language	English [eng]
Replaces	http://hdl.handle.net/1957/18380

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