Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Pamela J. Edwards
    Date: 1998
    Source: Gen. Tech. Rep. NE-250. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 18 p.
    Publication Series: General Technical Report (GTR)
    Station: Northeastern Research Station
    PDF: View PDF  (131.56 KB)

    Description

    Sulfur inputs to forests originate from mineral weathering, atmospheric deposition, and organic matter decomposition. In the soil, sulfur occurs in organic and inorganic forms and is cycled within and between those forms via mobilization, immobilization, mineralization, oxidation, and reduction processes. Organic sulfur compounds are largely immobile. Inorganic sulfur compounds are more mobile, and sulfate is the most mobile. Adsorption onto soil limits or delays sulfate ion transport. Nonspecifically adsorbed sulfate ions are held by electrostatic charges, so they are not held as tightly as specifically adsorbed ions. Sulfate adsorption and desorption are controlled predominantly by pH, sulfate concentrations, concentrations and types of other cations and anions in solution, and the character of the colloidal surfaces. Subsurface flow paths play important roles in determining the fate of sulfate in soils. Theories and models of sulfate transport from and retention within watersheds focus on contact times between ions and soil materials, macropore, mesopore, and micropore flow contributions to streamflow, overall soil moisture conditions and deposition levels.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Edwards, Pamela J. 1998. Sulfur cycling, retention, and mobility in soils: A review. Gen. Tech. Rep. NE-250. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 18 p.

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/3808