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

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

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
StatePublished - 1988
Externally publishedYes

Fingerprint

hardwood forests
soil horizons
soil horizon
moisture content
mineralization
sulfates
sulfate
water content
methionine
B horizons
A horizons
effect
soil
sulfur
soil organic matter
soil sampling
amino acid
incubation
moisture
organic matter

ASJC Scopus subject areas

  • Forestry
  • Plant Science

Cite this

Effects of moisture content on sulfate generation and retention in hardwood forest upper soil horizons. / Watwood, Maribeth E; Fitzgerald, J. W.; Swank, W. T.

In: Canadian Journal of Forest Research, Vol. 18, No. 6, 1988, p. 820-824.

Research output: Contribution to journalArticle

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AB - 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

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