Repository logo
 

Conservative solute transport processes and associated transient storage mechanisms: a comparison of streams with contrasting channel morphologies, land use, and land cover

Simple item page
dc.contributor.authorEmanuelson, Karin, author
dc.contributor.authorCovino, Timothy, advisor
dc.contributor.authorRoss, Matthew R. V., committee member
dc.contributor.authorMorrison, Ryan R., committee member
dc.date.accessioned2021-09-06T10:24:35Z
dc.date.available2021-09-06T10:24:35Z
dc.date.issued2021
dc.description.abstractLand use within a watershed impacts stream channel morphology and hydrology and therefore in-stream solute transport processes. In this study, I selected two stream sites with contrasting channel morphology, land use and land cover: Como Creek, CO, a relatively undisturbed, high-gradient, forested stream with a gravel bed and complex channel morphology and Clear Creek, IA, an incised, low-gradient stream with low-permeability substrate draining an agricultural landscape. At these sites, I performed conservative stream tracer experiments to address the following questions: 1) How does solute transport vary between streams with differing morphologies and watershed land use?, and 2) How does solute transport at each stream site change as a function of discharge? I analyzed in-stream tracer time series data and compared results quantifying solute attenuation in surface and subsurface transient storage zones. I found significant differences in solute transport metrics between sites and significant trends in these metrics with varying discharge conditions at the forested site but not at the agricultural site. In the relatively undisturbed, forested stream there was a broad range of transport mechanisms and evidence of substantial exchange with both surface and hyporheic transient storage. In this forested site, changing discharge conditions activated or deactivated different solute transport mechanisms and greatly impacted advective travel time. Conversely, in a simplified, agricultural stream there was a narrow range of solute transport behavior across flows and predominantly surface transient storage at all measured discharge conditions. These results demonstrate how channel simplification resulting from land use change inhibits available solute transport mechanisms across varying discharge conditions.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierEmanuelson_colostate_0053N_16648.pdf
dc.identifier.urihttps://hdl.handle.net/10217/233701
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2020-
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectfluvial geomorphology
dc.subjectland use
dc.subjecttransient storage
dc.subjectland cover
dc.subjectbreakthrough curve
dc.subjectsolute transport
dc.titleConservative solute transport processes and associated transient storage mechanisms: a comparison of streams with contrasting channel morphologies, land use, and land cover
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineEcosystem Science and Sustainability
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Emanuelson_colostate_0053N_16648.pdf
Size:
1.29 MB
Format:
Adobe Portable Document Format
Download

Collections

2020-
Theses and Dissertations