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The C-13/C-12 kinetic isotope effect for soil oxidation of methane at ambient atmospheric concentrationsDuring a survey of the Alaskan North Slope to estimate the isotopic composition and fluxes of methane (CH4) from the tundra, two sites were encountered that showed net methane consumption within flux chambers. Methane concentrations decreased from ambient (1.78 ppmv) by up to 50 percent, and the delta C-13 increased by up to 10 percent in the two chamber deployments showing CH4 consumption. CH4 consumption rates were measured to be 1.2 and 0.6 mg CH4/sq m per day; the corresponding carbon kinetic isotope effects (k13/k12) were 0.974 and 0.984, respectively.
Document ID
19900034972
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
King, Stagg L.
(Washington Univ. Seattle, WA, United States)
Quay, Paul D.
(Washington Univ. Seattle, WA, United States)
Lansdown, John M.
(Washington, University Seattle, United States)
Date Acquired
August 14, 2013
Publication Date
December 20, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Environment Pollution
Accession Number
90A22027
Funding Number(s)
CONTRACT_GRANT: NAGW-844
Distribution Limits
Public
Copyright
Other

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