Articles | Volume 13, issue 4
Biogeosciences, 13, 1309–1327, 2016
https://doi.org/10.5194/bg-13-1309-2016

Special issue: OzFlux: a network for the study of ecosystem carbon and water...

Biogeosciences, 13, 1309–1327, 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 et al.

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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.
AMC (Analytical Methods Committee): Meat and poultry nitrogen factors, Anal. Methods, 6, 4493–4495, 2014.
Balaine, N., Clough, T. J., Beare, M. H., Thomas, S. M., Meenken, E. D., and Ross, J. G.: Changes in relative gas diffusivity explain soil nitrous oxide flux dynamics, Soil Sci. Soc. Am. J., 77, 1496–1505, 2013.
Baldocchi, D.: Measuring fluxes of trace gases and energy between ecosystems and the atmosphere – the state and future of the eddy covariance method, Glob. Change Biol., 20, 3600–3609, 2014.
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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