Amazon capims (floating grassmats) - A source of C-13 enriched methane to the troposphere

Details Amazon capims (floating grassmats) - A source of C-13 enriched methane to the troposphere Amazon capims (floating grassmats) - A source of C-13 enriched methane to the troposphere

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16..799c&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, Aug. 1989, p. 799-802.

Physics

5

Amazon Region (South America), Carbon 13, Methane, Troposphere, Alaska, Arctic Regions, Atmospheric Composition, Floating, Florida

Scientific paper

The C-13 isotopic composition of methane emitted to the troposphere from Amazon capims (floating grassmats) ranged from -36.9 to -48.0, per mil averaging -44.4 + or - 4.2 per mil. All pools of methane associated with the grassmats were enriched; methane withdrawn from plant stems ranged from -39 to -49 per mil while bubbles stirred from the root mat averaged -41.4 per mil. As the CH4 flux from these habitats makes up some 40 percent of the total flux from the Amazon floodplain, methane emissions from the region as a whole must be enriched in.

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