Affiliation: | a INRA, UMR 1091 EGC, F-78850 Thiverval-Grignon, France b AgroParisTech, UMR 1091 EGC, F-78850 Thiverval-Grignon, France c University College London, Department of Geography, London WC1E 6BT, UK d University of Aberdeen, School of Biological Sciences, Aberdeen, AB24 3UU Scotland, UK e INRA, UMR 462 SAGAH, IFR 149 QUASAV, F-49071 Beaucouzé, France f INRA, UMR 759 LEPSE, F-34060 Montpellier, France g SupAgro, UMR 759 LEPSE, F-34060 Montpellier, France |