Effects of moisture content on sulfate generation and retention in hardwood forest upper soil horizons

M. E. Watwood, J. W. Fitzgerald, W. T. Swank

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

The influence of moisture on organic S mineralization and the fate of both mineralization-derived and added sulfate were examined in A and B horizon soil samples from a hardwood forest. The sulfur-containing amino acid methionine was chosen to study organic S mineralization. At moisture contents over 30%, high levels of methionine mineralization were observed, and at lower moisture contents mineralization decreased substantially. For soil moistures lower than 10 and 20% for the A and B horizons, respectively, most of the added methionine remained nonmineralized following incubation. In addition to mineralization, a portion of the added methionine was also incorporated directly into organic matter. The highest levels of this incorporation were achieved at soil moistures between 20 and 35%. -from Authors

Original languageEnglish (US)
Pages (from-to)820-824
Number of pages5
JournalCanadian Journal of Forest Research
Volume18
Issue number6
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Global and Planetary Change
  • Forestry
  • Ecology

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