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Biologically produced volatile compounds: N2O emissions from the soil and the N2O global budgetN2O dynamics were studied at the soil-atmosphere interface and their effects on the global N2O budget. Troposphere nitrous oxide (N2O) concentration has increased by 0.2 to 0.4 pct. per year over the period 1975 to 1982, amounting to a net addition to the atmosphere of 2.8 to 5.6 Tg N2O-N per year. This perturbation, if continued into the future, will affect stratospheric chemical cycles, and the thermal balance of the Earth. In turn it will have direct and indirect global effects on the biosphere. The only well documented heat sinks identified to date are the stratospheric photolytic decomposition processes. However, quantitatively, they do not account for all the known sources. Emission from soils is the least understood and most variable component in the N2O budget. An automated field station that will measure N2O fluxes and interchanges over long periods of time is being developed. At each station, the source/sink relations of N2O at the soil-atmosphere interface will be measured and their relations to environmental conditions are documented and quantified. The results from the perennial measurements will generate the data base on which global budgets for N2O will be constructed and related to ecosystem parameters.
Document ID
19930073159
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Banin, A.
(NASA Ames Research Center Moffett Field, CA, United States)
Whitten, R.
(NASA Ames Research Center Moffett Field, CA, United States)
Livingston, G.
(NASA Ames Research Center Moffett Field, CA, United States)
Lawless, J.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1985
Publication Information
Publication: First Symposium on Biospheric Research
Subject Category
Environment Pollution
Accession Number
93N70606
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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