N2O/222Rn - soil flux calibration in the stable nocturnal surface layer

Details N2O/222Rn - soil flux calibration in the stable nocturnal surface layer N2O/222Rn - soil flux calibration in the stable nocturnal surface layer

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29b..12c&link_type=abstract

Geophysical Research Letters, Volume 29, Issue 2, pp. 12-1, CiteID 1025, DOI 10.1029/2001GL013429

Physics

7

Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions, Atmospheric Composition And Structure: Instruments And Techniques

Scientific paper

Concentration changes of N2O and 222Rn were monitored in the surface layer above a grass sward during the first half of two calm nights. N2O flux on a local or field scale was then estimated from the ratio of the concentration differences between 0.1m and 0.4m height and the directly measured 222Rn flux. This estimate (~7 g N2O-N ha-1d-1) was between the N2O flux on a larger scale (~4.5 g N2O-N ha-1d-1), as estimated from changes in the N2O/222Rn ratio over time, and the small scale flux on the grass plot (~50 g N2O-N ha-1d-1) as measured with closed chambers.

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