%0 Report %D 2011 %T Interpretation of evidence of nitrogen impacts on vegetation in relation to UK biodiversity objectives %A Emmett, B.A. %A Rowe, E.C. %A Stevens, C.J. %A Gowing, D.J. %A Henrys, P.A. %A Maskell, L.C. %A Smart, S.M. %I JNCC %G eng