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Volume 13, issue 16
Biogeosciences, 13, 4811–4821, 2016
https://doi.org/10.5194/bg-13-4811-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Hotspots of greenhouse emissions from terrestrial ecosystems...

Biogeosciences, 13, 4811–4821, 2016
https://doi.org/10.5194/bg-13-4811-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 29 Aug 2016

Research article | 29 Aug 2016

The influence of tillage on N2O fluxes from an intensively managed grazed grassland in Scotland

Nicholas J. Cowan et al.

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Cited articles

Abdalla, M., Jones, M., Ambus, P., and Williams, M.: Emissions of nitrous oxide from Irish arable soils: effects of tillage and reduced N input, Nutr. Cycl. Agroecosys., 86, 53–65, https://doi.org/10.1007/s10705-009-9273-8, 2010.
Baggs, E. M., Stevenson, M., Pihlatie, M., Regar, A., Cook, H., and Cadisch, G.: Nitrous oxide emissions following application of residues and fertiliser under zero and conventional tillage, Plant Soil, 254, 361–370, https://doi.org/10.1023/A:1025593121839, 2003.
Ball, B.: Soil and residue management effects on arable cropping conditions and nitrous oxide fluxes under controlled traffic in Scotland 1. Soil and crop responses, Soil Till. Res., 52, 177–189, https://doi.org/10.1016/S0167-1987(99)00080-X, 1999.
Ball, B., Crichton, I., and Horgan, G.: Dynamics of upward and downward N2O and CO2 fluxes in ploughed or no-tilled soils in relation to water-filled pore space, compaction and crop presence, Soil Till. Res., 101, 20–30, https://doi.org/10.1016/j.still.2008.05.012, 2008.
Boeckx, P., Van Nieuland, K., and Van Cleemput, O.: Short-term effect of tillage intensity on N2O and CO2 emissions, Agron. Sustain. Dev., 31, 453–461, https://doi.org/10.1007/s13593-011-0001-9, 2011.
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Using a quantum cascade laser we measured N2O fluxes before and after a tillage event on a long-term grazed grassland field using the flux chamber and eddy covariance methods. The measurements were gap-filled using a generalised additive model which used meteorological data at the site. Results suggest that tillage of soils containing plant material (crop residues) releases a relatively large amount of N2O-N, similar in magnitude to approximately 0.9 % of the nitrogen in the plant materials.
Using a quantum cascade laser we measured N2O fluxes before and after a tillage event on a...
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