The effect of pH on sulfate adsorption by a forest soil

Stephen C. Nodvin, Charles T Driscoll, Gene E. Likens

Research output: Contribution to journalArticle

129 Citations (Scopus)

Abstract

Acidic deposition and forest clear-cutting are disturbances that have resulted in increased, acidification of northeastern forest ecosystems. This study was conducted to evaluate whether acidification processes can significantly affect adsorption processes that are important in regulating sulfate transport and cycling in a Spodosol at the Hubbard Brook Experimental Forest, New Hampshire. The results of adsorption experiments demonstrated that small changes in solution pH have a large effect on sulfate adsorption characteristics of mineral soil at Hubbard Brook. The ability of the soil to remove sulfate from solution increased as the pH of the solution was decreased, with a maximum removal occurring at about pH 4.0. Through the use of initial mass isotherms, we determined that sulfate removal depended upon (1) the ability of the soil to partition sulfate between the soil and solution phases and (2) the amount of reactive native sulfate that is present in the soil. Our analysis demonstrated that both these soil properties depend strongly upon solution pH.

Original languageEnglish (US)
Pages (from-to)69-75
Number of pages7
JournalSoil Science
Volume142
Issue number2
StatePublished - 1986

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forest soils
forest soil
sulfates
adsorption
sulfate
soil
acidification
Spodosols
Spodosol
experimental forests
clearcutting
mineral soils
forest ecosystems
forest ecosystem
effect
soil properties
soil property
isotherm
disturbance
mineral

ASJC Scopus subject areas

  • Soil Science
  • Earth-Surface Processes

Cite this

Nodvin, S. C., Driscoll, C. T., & Likens, G. E. (1986). The effect of pH on sulfate adsorption by a forest soil. Soil Science, 142(2), 69-75.

The effect of pH on sulfate adsorption by a forest soil. / Nodvin, Stephen C.; Driscoll, Charles T; Likens, Gene E.

In: Soil Science, Vol. 142, No. 2, 1986, p. 69-75.

Research output: Contribution to journalArticle

Nodvin, SC, Driscoll, CT & Likens, GE 1986, 'The effect of pH on sulfate adsorption by a forest soil', Soil Science, vol. 142, no. 2, pp. 69-75.
Nodvin, Stephen C. ; Driscoll, Charles T ; Likens, Gene E. / The effect of pH on sulfate adsorption by a forest soil. In: Soil Science. 1986 ; Vol. 142, No. 2. pp. 69-75.
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