Full TGIF Record # 164919
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DOI:10.1016/j.agee.2006.12.024
Web URL(s):http://www.sciencedirect.com/science/article/pii/S0167880906004385
    Last checked: 01/31/2014
    Access conditions: Item is within a limited-access website
Publication Type:
i
Report
Author(s):Flechard, C. R.; Ambus, P.; Skiba, U.; Rees, R. M.; Hensen, A.; van Amstel, A.; van den Pol-van Dasselaar, A.; Soussana, J.-F.; Jones, M.; Clifton-Brown, J.; Raschi, A.; Horvath, L.; Neftel, A.; Jocher, M.; Ammann, C.; Leifeld, J.; Fuhrer, J.; Calanca, P.; Thalman, E.; Pilegaard, K.; Di Marco, C.; Campbell, C.; Nemitz, E.; Hargreaves, K. J.; Levy, P. E.; Ball, B. C.; Jones, S. K.; van de Bulk, W. C. M.; Groot, T.; Blom, M.; Domingues, R.; Kasper, G.; Allard, V.; Ceschia, E.; Cellier, P.; Laville, P.; Henault, C.; Bizouard, F.; Abdalla, M.; Williams, M.; Baronti, S.; Berretti, F.; Grosz, B.
Author Affiliation:Flechard, Neftel, Jocher, Ammann, Leifeld, Fuhrer, Calanca, and Thalman: Agroscope Reckenholz-Tänikon, Research Station ART, Air Pollution/Climate Group, Zurich, Switzerland; Ambus and Pilegaard: RISØ National Laboratory, Roskilde, Denmark; Skiba, Di Marco, Campbell, Nemitz, Hargreaves, and Levy: CEH, Edinburgh Research Station, Bush Estate, Penicuik, Midlothian, Scotland, United Kingdom; Rees, Ball, and Jones: SAC, King's Buildings, Scotland, United Kingdom; Hensen, van de Bulk, Groot, and Blom: ECN, Petten, The Netherlands; van Amstel and Domingues: WUR, Enivornmental Systems Analysis Group, Wageningen, The Netherlands; van den Pol-van Dasselaar and Kasper: WUR Animal Sciences Group, Lelystad, The Netherlands; Soussana, Allard, and Ceschia; INRA, UR874 Grassland Ecosystem Research, Clermont-Ferrand, France; Cellier and Laville: Environnement et Grandes Cultures, Thiverval-Grignon, France; Henault and Bizouard: UMR Microbiologie des Sols, Dijon Cedex, France; Abdalla and Williams: TCD (Trinity College Dublin), Dublin, Ireland; Clifton-Brown: Plas Gogerddan, Wales; Raschi and Berretti: IATAA, Piazzale delle Cascine, Firenze, Italy; Grosz: ELU (Eotvos Lorand University, Budapest, Hungary; Horvath: HMS (Hungarian Meteorological Service), Budapest, Hungary
Title:Effects of climate and management intensity on nitrous oxide emissions in grassland systems across Europe
Source:Agriculture, Ecosystems, and Environment. Vol. 121, No. 1-2, June 2007, p. 135-152.
# of Pages:18
Publishing Information:Amsterdam: Elsevier Science Publishers
Keywords:TIC Keywords: Emissions; Evaluations; Grassland soils; Maintenance intensity; Nitrous oxide
Abstract/Contents:"Soil/atmosphere exchange fluxes of nitrous oxide were monitored for a 3-year period at 10 grassland sites in eight European countries (Denmark, France, Hungary, Ireland, Italy, The Netherlands, Switzerland and United Kingdom), spanning a wide range of climatic, environmental and soil conditions. Most study sites investigated the influence of one or several management practices on N2O exchange, such as nitrogen fertilization and grazing intensity. Fluxes were measured using non-steady state chambers at most sites, and alternative measurement techniques such as eddy covariance and fast-box using tunable diode laser spectroscopy were implemented at some sites. The overall uncertainty in annual flux estimates derived from chamber measurements may be as high as 50% due to the temporal and spatial variability in fluxes, which warrants the future use of continuous measurements, if possible at the field scale. Annual emission rates were higher from intensive than from extensive grasslands, by a factor 4 if grazed (1.77 versus 0.48 kg N2O-N ha-1 year-1) and by a factor 3 if ungrazed (0.95 versus 0.32 kg N2O-N ha-1 year-1). Annual emission factors for fertilized systems were highly variable, ranging from 0.01% to 3.56%, but the mean emission factor across all sites (0.75%) was substantially lower than the IPCC default value of 1.25%. Emission factors for individual fertilization events increased with soil temperature and were generally higher for water-filled pore space values in the range 60-90%, though precipitation onto dry soils was also shown to lead to high losses of N2O-N from applied fertilizer. An empirical, multiple regression model to predict N2O emission factors on the basis of soil temperature, moisture and rainfall is developed, explaining half of the variability in observed emission factors."
Language:English
References:43
Note:Figures
Tables
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Geographic Terms:Europe
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Flechard, C. R., P. Ambus, U. Skiba, R. M. Rees, A. Hensen, A. van Amstel, et al. 2007. Effects of climate and management intensity on nitrous oxide emissions in grassland systems across Europe. Agric. Ecosyst. Environ. 121(1-2):p. 135-152.
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DOI: 10.1016/j.agee.2006.12.024
Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0167880906004385
    Last checked: 01/31/2014
    Access conditions: Item is within a limited-access website
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