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Primary production control of methane emission from wetlandsBased on simultaneous measurements of CO2 and CH4 exchange in wetlands extending from subarctic peatlands to subtropical marshes, a positive correlation between CH4 emission and net ecosystem production is reported. It is suggested that net ecosystem production is a master variable integrating many factors which control CH4 emission in vegetated wetlands. It is found that about 3 percent of the daily net ecosystem production is emitted back to the atmosphere as CH4. With projected stimulation of primary production and soil microbial activity in wetlands associated with elevated atmospheric CO2 concentration, the potential for increasing CH4 emission from inundated wetlands, further enhancing the greenhouse effect, is examined.
Document ID
19930072203
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Whiting, G. J.
(Science Applications International Corp.; NASA, Langley Research Center Hampton, VA, United States)
Chanton, J. P.
(Florida State Univ. Tallahassee, United States)
Date Acquired
August 16, 2013
Publication Date
August 26, 1993
Publication Information
Publication: Nature
Volume: 364
Issue: 6440
ISSN: 0028-0836
Subject Category
Geophysics
Accession Number
93A56200
Distribution Limits
Public
Copyright
Other

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