Table 6 . Mixed effects models conducted on theg1 estimates. Square root transformation was applied to meet ANOVA assumptions. Campaign representing day of measurement and site were used as random variable. Experimental factors are represented as follow: warming (ambient T and +3.3°C), reduced rainfall (ambient and ~40% of summer rainfall removed), species (see Table 3), and soil Volumetric Water Content (VWC). The environmental treatment (i.e., open and closed canopy) are analyzed separately.