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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 14, issue 20
Biogeosciences, 14, 4691–4710, 2017
https://doi.org/10.5194/bg-14-4691-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 14, 4691–4710, 2017
https://doi.org/10.5194/bg-14-4691-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 23 Oct 2017

Research article | 23 Oct 2017

Effect of soil saturation on denitrification in a grassland soil

Laura Maritza Cardenas et al.
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A laboratory incubation was carried out at different soil moisture levels to measure emissions of nitrogen gases and the isotopomers (position of 15N) of nitrous oxide. Flux variability was larger in drier conditions, probably due to nutrient distribution heterogeneity created from soil cracks and consequently nutrient hot spots. Denitrification was the main source of fluxes at higher moisture, but nitrification could have occurred under drier conditions (although moisture was still high).
A laboratory incubation was carried out at different soil moisture levels to measure emissions...
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