Activité potentielle de méthanogenèse dans les sols, tourbières, sédiments lacustres et du réservoir hydroélectrique Robert-Bourassa dans le moyen Nord-Canadien

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DOIResolve DOI: https://doi.org/10.1139/w04-112
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Name affiliation
  1. National Research Council of Canada. NRC Biotechnology Research Institute
FormatText, Article
Journal titleCanadian Journal of Microbiology
Volume51
Issue1
Pages79–84
Subjectmethane production; reservoir; sediment; soils; peats; réservoir; sédiments; sols; tourbières
Abstract
Flooding of land associated with the creation of reservoirs may increase, at least in the short term, methane flux to the atmosphere. To evaluate the potential contribution of such land use on methane production, field samples were studied in vitro for the potential activity of methanogenic bacteria in unflooded or flooded boreal forest soils, together with lacustrine sediments. From this comparative study, periodically flooded or flooded peats contribute more to methane production than do unflooded peats, soils, and natural lake sediment. The intensity and temporal changes in the activity of methanogenic archaea in the different systems depended on a combination of environmental factors, such as the amount and quality of organic carbon, the water level, and the concentration of oxidizing ions (SO₄²⁻, Fe³⁺).
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LanguageFrench
NRC numberMRC-BRI-47259
NPARC number3539133
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Record identifier37698f6a-c542-40a0-bcd2-26b834094fc5
Record created2009-03-01
Record modified2020-04-07
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