• Login
    View Item 
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Controls on the Spatial Distribution of Near-Surface Pyrogenic Carbon on Hillslopes 1 Year Following Wildfire

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    2020JF005996.pdf
    Size:
    2.801Mb
    Format:
    PDF
    Description:
    Final Published Version
    Download
    Author
    McGuire, L.A.
    Rasmussen, C.
    Youberg, A.M.
    Sanderman, J.
    Fenerty, B.
    Affiliation
    Department of Geosciences, University of Arizona
    Department of Environmental Science, University of Arizona
    Arizona Geological Survey, University of Arizona
    Issue Date
    2021
    Keywords
    disturbance
    erosion
    pyrogenic carbon
    wildfire
    
    Metadata
    Show full item record
    Publisher
    Blackwell Publishing Ltd
    Citation
    McGuire, L. A., Rasmussen, C., Youberg, A. M., Sanderman, J., & Fenerty, B. (2021). Controls on the Spatial Distribution of Near-Surface Pyrogenic Carbon on Hillslopes 1 Year Following Wildfire. Journal of Geophysical Research: Earth Surface, 126(6).
    Journal
    Journal of Geophysical Research: Earth Surface
    Rights
    © 2021 American Geophysical Union. All Rights Reserved.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Wildfire alters hydrologic and geomorphic systems, promoting increases in runoff and erosion relative to unburned areas. As a result, pyrogenic carbon (PyC) produced by wildfires can experience substantial lateral redistribution from overland flow. Since landscape position helps to determine the fate of PyC, it is critical to understand the geomorphic factors that govern its lateral redistribution as well as the sensitivity of those factors to soil burn severity, which controls the magnitude of many wildfire-induced hydrologic and geomorphic changes. In this study, we quantified the spatial distribution of near-surface (0–5 cm) PyC on three hillslopes roughly 1 year after the 2018 Buzzard Fire in the Gila National Forest, New Mexico, USA. We then use hydrologic monitoring data, terrain analysis, and rainfall-runoff modeling to explain the observed spatial distribution of PyC. Near-surface PyC concentrations decreased from averages of roughly 12–8 g/kg as slope and unit stream power increased by factors of ∼2 and 4, respectively, on a hillslope burned at low severity. This suggests that susceptibility to runoff-driven erosion was a dominant control on the redistribution of PyC. In contrast, the spatial distribution of PyC in areas burned at moderate to high severity was independent of slope and unit stream power. We attribute this pattern to intense runoff and lack of canopy cover, which promoted erosion of PyC regardless of slope and landscape position. Results demonstrate that how wildfire-induced hydrogeomorphic changes can modulate the importance of terrain attributes in controlling the spatial distribution of PyC in upland landscapes. © 2021. American Geophysical Union. All Rights Reserved.
    Note
    6 month embargo; first published: 20 May 2021
    ISSN
    2169-9003
    DOI
    10.1029/2020JF005996
    Version
    Final published version
    ae974a485f413a2113503eed53cd6c53
    10.1029/2020JF005996
    Scopus Count
    Collections
    UA Faculty Publications

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.