Figure 6.

The interactive effects of (a) length of exposure (time point (months)) × temperature regime on [PO₄-P], (b) length of exposure (time point (months)) × [CO₂] (ppm) on [NH₄-N], (c) length of exposure (time point (months)) × temperature regime on [NO_x-N] and (d) CO₂ (ppm) × temperature regime on [NO_x-N]. In a,c and d temperature regimes are ambient (open circles) or ambient+4°C (filled circles). In b, [CO₂] is 380 ppm (open circles) or 750 ppm (grey circles). All error bars represent s.e.