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Emissions of biogenic sulfur gases from northern bogs and fensSulfur gases are important components of the global cycle of S. They contribute to the acidity of precipitation and they influence global radiation balance and climate. The role of terrestrial sources of biogenic S and their effect on atmospheric chemistry remain as major unanswered questions in our understanding of the natural S cycle. The role of northern wetlands as sources and sinks of gaseous S by measuring rates of S gas exchange as a function of season, hydrologic conditions, and gradients in tropic status was investigated. Experiments were conducted in wetlands in New Hampshire, particularly a poor fen, and in Mire 239, a poor fen at the Experimental Lakes Area (ELA) in Ontario. Emissions were determined using Teflon enclosures, gas cryotrapping methods and gas chromatography (GC) with flame photometric detection. Dynamic (sweep flow) and static enclosures were employed which yielded similar results. Dissolved S gases and methane were determined by gas stripping followed by GC.
Document ID
Document Type
Demello, William Zamboni
(New Hampshire Univ. Durham, NH, United States)
Hines, Mark E.
(New Hampshire Univ. Durham, NH, United States)
Bayley, Suzanne E.
(Alberta Univ. Edmonton., United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1992
Publication Information
Publication: Terminal Decomposition and Gaseous Sulfur Release from Tidal Wetlands
Subject Category
Environment Pollution
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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