Articles | Volume 13, issue 10
https://doi.org/10.5194/bg-13-2959-2016
https://doi.org/10.5194/bg-13-2959-2016
Research article
 | 
19 May 2016
Research article |  | 19 May 2016

Determination of the carbon budget of a pasture: effect of system boundaries and flux uncertainties

Raphael Felber, Daniel Bretscher, Andreas Münger, Albrecht Neftel, and Christof Ammann

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Cited articles

AGRIDEA: Pflanzen und Tiere 2008: Wirz Handbuch, AGRIDEA Lindau/Wirz Verlag, Lindau/Basel, Switzerland, 2007.
Allard, V., Soussana, J.-F., Falcimagne, R., Berbigier, P., Bonnefond, J. M., Ceschia, E., D'hour, P., Hénault, C., Laville, P., Martin, C., and Pinarès-Patino, C.: The role of grazing management for the net biome productivity and greenhouse gas budget (CO2, N2O and CH4) of semi-natural grassland, Agr. Ecosyst. Environ., 121, 47–58, https://doi.org/10.1016/j.agee.2006.12.004, 2007.
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Ammann, C., Spirig, C., Leifeld, J., and Neftel, A.: Assessment of the nitrogen and carbon budget of two managed temperate grassland fields, Agr. Ecosyst. Environ., 133, 150–162, https://doi.org/10.1016/j.agee.2009.05.006, 2009.
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Short summary
We compare the carbon budget of a pasture using two different system boundaries: including and excluding grazing cows. We reveal the importance of non-CO2 fluxes as budget components depending on the chosen system boundaries and discuss the effect of their uncertainties. Budget components were directly measured or derived from cow related measured parameters like milk yield. The resulting carbon budgets of both approaches agree within the limits of uncertainty showing a near-neutral behavior.
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