FIGURE 6.
NNC‐part predicted responses of gross primary production as function of SW_IN ([W/m2], a–d), VPD, ([kPa], e–h), Ta ([°C], i–l), and of ecosystem respiration as function of Ta ([°C], m–p). The functional responses are simulated in the study sites at the northern hemisphere (latitude > +15°N) and in fixed seasonal conditions. The average site‐specific responses (mean values of at least 3 years of data) are reported as colored lines, in particular: forested sites are in green, grassland and cropland sites are in black, and dry sites are reported in red. The singular site‐year response are dashed light gray lines