Title	Supersaturation and evasion of CO2 and CH4 in surface waters at Mer Bleue Peatland, Canada
Author	Billett, M.F.; Moore, T.R.
Author Affil	Billett, M.F., Centre for Ecology and Hydrology, Edinburgh Research Station, Penicuik, United Kingdom. Other: McGill University, Canada
Source	Hydrological Processes, 22(12), p.2044- 2054, . Publisher: John Wiley & Sons, New York, NY, United States. ISSN: 0885- 6087
Publication Date	Jun. 15, 2008
Notes	In English. 42 refs. GeoRef Acc. No: 284717
Index Terms	freezing; freezing rate; gases; geochemical cycles; geochemistry; hydrocarbons; hydrogeochemistry; surface waters; thawing; thaw rates; Canada--Ontario-- Ottawa; aliphatic hydrocarbons; alkanes; bogs; Canada; carbon; carbon cycle; carbon dioxide; concentration; dissolved materials; Eastern Canada; geochemical cycle; hydrochemistry; Mer Bleue Peatland; methane; mires; Ontario; organic carbon; organic compounds; Ottawa Ontario; peatlands; rates; saturation; seasonal variations; southern Ontario; spatial variations; surface water; temporal distribution
Abstract	Carbon dioxide (CO2) and methane (CH4) concentrations and evasion rates were measured in surface waters draining Mer Bleue peatland (Ontario, Canada) between spring and autumn 2005. All sites exhibit a consistent pattern of supersaturation throughout the year, which is broadly related to hydrological and temperature changes between spring snowmelt and autumn freezing. Both measurements and estimates of CO2 and CH4 evasion from open water to the atmosphere suggest that parts of the catchment (including beaver dams) are significant degassing hot spots. We present data showing how vertical gaseous carbon fluxes compare with lateral carbon fluxes and make an initial estimate of the importance to the overall carbon budget of CO2 and CH4 evasion to the atmosphere from water surfaces at Mer Bleue. Abstract Copyright (2008), Wiley Periodicals, Inc.
URL	http://hdl.handle.net/10.1002/hyp.6805
Publication Type	journal article
Record ID	62005097