Articles | Volume 13, issue 4
https://doi.org/10.5194/bg-13-1309-2016
https://doi.org/10.5194/bg-13-1309-2016
Research article
 | 
02 Mar 2016
Research article |  | 02 Mar 2016

Combining two complementary micrometeorological methods to measure CH4 and N2O fluxes over pasture

Johannes Laubach, Matti Barthel, Anitra Fraser, John E. Hunt, and David W. T. Griffith

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Cited articles

Acevedo, O. C., Moraes, O. L. L., Degrazia, G. A., Fitzjarrald, D. R., Manzi, A. O., and Campos, J. G.: Is friction velocity the most appropriate scale for correcting nocturnal carbon dioxide fluxes?, Agr. Forest Meteorol., 149, 1–10, 2009.
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Burchill, W., Li, Dejun, Lanigan, G. J., Williams, M., and Humphreys, J.: Interannual variation in nitrous oxide emissions from perennial ryegrass/white clover grassland used for dairy production, Glob. Change Biol., 20, 3137–3146, 2014.
Short summary
We continuously measured CH4 and N2O fluxes on two pastures that differed with respect to management. Two micrometeorological ratio methods were used; one was more suitable for daytime and the other for night-time. Over a year, both methods indicated both sites as net sources of CH4 and N2O, similar to other managed grasslands. At the irrigated, fertilised and rotationally grazed site, the N2O emissions were 1.21 (±0.15) % of the nitrogen inputs from animal excreta and fertiliser application.
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