Countryside Survey 1990 vegetation plot data - Barr, C.J.; Bunce, R.G.H.; Gillespie, M.K.; Hallam, C.J.; Howard, D.C.; Maskell, L.C.; Ness, M.J.; Norton, L.R.; Scott, R.J.; Smart, S.M.; Stuart, R.C.; Wood, C.M. (NERC Environmental Information Data Centre, 2014)