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Emissions of N2O from tropical forest soils - Response to fertilization with NH4(+), NO3(-), and PO4(3-)Undisturbed oxisols in a central Amazon tropical forest were fertilized with ammonium, nitrate, or phosphate. Enhanced emissions of N2O were observed for all treatments within one day of fertilization, with the response NO3(-) much greater than NH4(+) much greater than PO4(3-). Approximately, 0.5 percent of applied NO3(-) was converted to N2O within two weeks after application, with less than 0.1 percent of the NH4(+) converted to N2O. These experiments reveal a potentially large source of N2O from microbial reduction of NO3(-) in the clay soils of Amazonia.
Document ID
19880040045
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Keller, M.
(Princeton University NJ, United States)
Kaplan, W. A.
(Princeton Univ. NJ, United States)
Wofsy, S. C.
(Harvard University Cambridge, MA, United States)
Da Costa, Jose Maria
(Vicosa, Universidade Federale, Minas Gerais, Brazil)
Date Acquired
August 13, 2013
Publication Date
February 20, 1988
Publication Information
Publication: Journal of Geophysical Research
Volume: 93
ISSN: 0148-0227
Subject Category
Earth Resources And Remote Sensing
Accession Number
88A27272
Funding Number(s)
CONTRACT_GRANT: NAG1-55
Distribution Limits
Public
Copyright
Other

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