• Login
    View Item 
    •   Home
    • Journals and Magazines
    • Radiocarbon
    • Radiocarbon, Volume 38 (1996)
    • Radiocarbon, Volume 38, Number 2 (1996)
    • View Item
    •   Home
    • Journals and Magazines
    • Radiocarbon
    • Radiocarbon, Volume 38 (1996)
    • Radiocarbon, Volume 38, Number 2 (1996)
    • 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

    Estimation of Slow- and Fast-Cycling Soil Organic Carbon Pools from 6N HCl Hydrolysis

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    1903-2150-1-PB.pdf
    Size:
    1.082Mb
    Format:
    PDF
    Download
    Author
    Leavitt, S. W.
    Follett, R. F.
    Paul, E. A.
    Issue Date
    1996-01-01
    Keywords
    hydrochloric acid
    inorganic acids
    hydrolysis
    Great Plains
    Michigan
    North America
    organic carbon
    Arizona
    chemical analysis
    composition
    soils
    organic compounds
    organic materials
    United States
    C 14
    carbon
    isotopes
    radioactive isotopes
    stable isotopes
    C 13
    fractionation
    Show allShow less
    
    Metadata
    Show full item record
    Citation
    Leavitt, S. W., Follett, R. F., & Paul, E. A. (1996). Estimation of slow-and fast-cycling soil organic carbon pools from 6N HCl hydrolysis. Radiocarbon, 38(2), 231-239.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/653599
    DOI
    10.1017/S0033822200017604
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    Acid hydrolysis is used to fractionate the soil organic carbon pool into relatively slowand fast-cycling compartments on soils from Arizona, the Great Plains states and Michigan collected for carbon isotope tracer studies related to soil carbon sequestration, for studies of shifts in C3/C4 vegetation, and for "pre-bomb" soil-carbon inventories. Prior to hydrolysis, soil samples are first treated with cold 0.5-1N HCl to remove soil carbonates if necessary. Samples are then dispersed in a concentrated NaCI solution (p is roughly equal to 1.2 g cm-3) and floated plant fragments are skimmed off the surface. After rinsing and drying, all remaining recognizable plant fragments are picked from the soil under 20x magnification. Plant-free soils, and hot, 6N HCl acid-hydrolysis residue and hydrolyzate fractions are analyzed for carbon content, delta-13C and 14C age, and the carbon distribution is verified within 1-2% by stable-carbon isotope mass balance. On average, the recalcitrant residue fraction is 1800 yr older and 2.6 per mil more 13C-depleted than total soil organic carbon. A test of hydrolysis with fresh plant fragments produced as much as 71-76% in the acid-hydrolysis residue pool. Thus, if plant fragments are not largely removed prior to hydrolysis, the residue fraction may date much younger than it actually is.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200017604
    Scopus Count
    Collections
    Radiocarbon, Volume 38, Number 2 (1996)

    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.