Nitrous oxide emissions from European agriculture - An analysis of variability and drivers of emissions from field experiments

Bob Rees, B.C. Ball, M. Giebels, H. Gordon, C.F.E. Topp, C.A. Watson, J. Augustin, M. Sommer, G. Alberti, P. Boeckx, A. Cantarel, J.F. Soussana, S. Castaldi, N. Chirinda, J.E. Olesen, O. Van Cleemput, B. Chojnicki, R. Juszczak, B. Grosz, A. MachonL. Horvath, Å. Kasimir Klemedtsson, L. Klemedtsson, S. Medinets, F. Mapanda, M. Wuta, J. Nyamangara, D.S. Reay, K.A. Smith, L. Sanchez, A. Sanz Cobena, A. Vallejo, A. Sowerby, M. Stenberg

Research output: Contribution to journalArticlepeer-review

Abstract

Nitrous oxide emissions from a network of agricultural experiments in Europe were used to explore the relative importance of site and management controls of emissions. At each site, a selection of management interventions were compared within replicated experimental designs in plot-based experiments. Arable experiments were conducted at Beano in Italy, El Encin in Spain, Foulum in Denmark, Logärden in Sweden, Maulde in Belgium, Paulinenaue in Germany, and Tulloch in the UK. Grassland experiments were conducted at Crichton, Nafferton and Peaknaze in the UK, Gödöllö in Hungary, Rzecin in Poland, Zarnekow in Germany and Theix in France. Nitrous oxide emissions were measured at each site over a period of at least two years using static chambers. Emissions varied widely between sites and as a result of manipulation treatments. Average site emissions (throughout the study period) varied between 0.04 and 21.21 kgNO-N ha yr, with the largest fluxes and variability associated with the grassland sites. Total nitrogen addition was found to be the single most important determinant of emissions, accounting for 15% of the variance (using linear regression) in the data from the arable sites (p
Original languageEnglish
Pages (from-to)2671-2682
Number of pages12
JournalBiogeosciences
Volume10
Issue number4
DOIs
Publication statusPublished - 1 Jan 2013

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