Agricultural acid sulfate soils: a potential source of volatile sulfur compounds?

Andrew S. Kinsela, Jason K. Reynolds, Mike D. Melville

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Most agricultural soils are generally considered to be a sink for sulfur gases rather than a source; however, recent studies have shown significant emissions of sulfur dioxide and hydrogen sulfide from acid sulfate soils. In the current study, acid sulfate soil samples were taken in northern New South Wales from under sugarcane cropping, as well as from an undisturbed nature reserve. Using gas chromatography/flame photometric detection in conjunction with headspace solid-phase microextraction, we have now determined that these soils are a potential source of the low molecular weight volatile sulfur compounds, dimethylsulfide and ethanethiol. Although the mechanism for their production remains unclear, both compounds are important in the transfer and interconversions of atmospheric and terrestrial sulfur. Therefore, these novel findings have important implications for refining local and regional atmospheric sulfur budgets, as well as for expanding our understanding of sulfur cycling within acid sulfate soils and other sediments.
Original languageEnglish
Pages (from-to)18-25
Number of pages8
JournalEnvironmental Chemistry
Volume4
Issue number1
DOIs
Publication statusPublished - 2007

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acid sulfate soil
Sulfur Compounds
sulfur compound
Sulfates
Sulfur
sulfur
Soils
Acids
dimethylsulfide
hydrogen sulfide
Sulfur Dioxide
nature reserve
Hydrogen Sulfide
agricultural soil
sulfur dioxide
cropping practice
gas chromatography
Gas chromatography
Refining
Sediments

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Kinsela, Andrew S. ; Reynolds, Jason K. ; Melville, Mike D. / Agricultural acid sulfate soils : a potential source of volatile sulfur compounds?. In: Environmental Chemistry. 2007 ; Vol. 4, No. 1. pp. 18-25.
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Agricultural acid sulfate soils : a potential source of volatile sulfur compounds? / Kinsela, Andrew S.; Reynolds, Jason K.; Melville, Mike D.

In: Environmental Chemistry, Vol. 4, No. 1, 2007, p. 18-25.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Agricultural acid sulfate soils

T2 - a potential source of volatile sulfur compounds?

AU - Kinsela, Andrew S.

AU - Reynolds, Jason K.

AU - Melville, Mike D.

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AB - Most agricultural soils are generally considered to be a sink for sulfur gases rather than a source; however, recent studies have shown significant emissions of sulfur dioxide and hydrogen sulfide from acid sulfate soils. In the current study, acid sulfate soil samples were taken in northern New South Wales from under sugarcane cropping, as well as from an undisturbed nature reserve. Using gas chromatography/flame photometric detection in conjunction with headspace solid-phase microextraction, we have now determined that these soils are a potential source of the low molecular weight volatile sulfur compounds, dimethylsulfide and ethanethiol. Although the mechanism for their production remains unclear, both compounds are important in the transfer and interconversions of atmospheric and terrestrial sulfur. Therefore, these novel findings have important implications for refining local and regional atmospheric sulfur budgets, as well as for expanding our understanding of sulfur cycling within acid sulfate soils and other sediments.

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