Fig. 4.

Relative variation of the daily mean net assimilation (A) and daily mean stomatal conductance to water vapour (g_s) using parameter values ranging ±50% around the estimated parameters from Table. 1. The size and the colour of the circles are proportional to the deviation of the parameter values (small and red circles correspond to decreased parameter values whilst large green circles correspond to increased parameter values). The length and direction are relative to the impact of the parameter on A and g_s.The simulated daily mean of A and g_s for each parameter set was divided by the mean values of A and g_s determined using the parameters in Table 1. The (1,1) coordinate showed similar daily mean values of A and g_s compared to values simulated using the parameter set described in Table 1. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)