Predicted annual change in cover of Sphagnum capillifolium as a result of nitrogen deposition in the form of NH\({}_{3}\), NH\({}_{4}^{+}\) and NO\({}_{3}^{-}\) across UK peat bogs. Wet and dry deposition was estimated by the CBED model \citep{Smith2000a,Smith2001a}, based on observed atmospheric concentrations and in rainfall. The distribution of peat bogs was taken from the CEH Land Cover Map 2015 (Morton et al. 2017) at 1-km resolution. At each of these locations, the model coefficients for the interactions between time and NH\({}_{3}\), NH\({}_{4}^{+}\) and NO\({}_{3}^{-}\) (Table 2) were multiplied by the respective deposition of each, to give their separate effects on cover change, as estimated from the responses in the Whim experiment. The effects are expected to be additive, so the total response to nitrogen deposition is the sum of the three effects.