Biosphere-atmosphere interactions of ammonia with grasslands: Experimental strategy and results from a new European initiative

M.A. Sutton; C. Milford; E. Nemitz; M.R. Theobald; P.W. Hill; D. Fowler; J.K. Schjoerring; M.E. Mattsson; K.H. Nielsen; S. Husted; J.W. Erisman; R. Otjes; A. Hensen; J. Mosquera; P. Cellier; B. Loubet; M. David; S. Genermont; A. Neftel; A. Blatter; B. Herrmann; S.K. Jones; L. Horvath; E.C. Führer; K. Mantzanas; Z. Koukoura; M. Gallagher; P. Williams; M. Flynn; M. Riedo