2.7. Statistical analyses
Variance estimates of E and Gs were computed according to
Oren et al. (1998) to include the variances of Js and LAI and their
mutual dependency. Similarly, variance estimates of Ktree were also
computed using the variance estimate of E, and mean variance of
Wl. Variations in h, E and Gs-ref over the measurements period were
analyzed by repeated measures ANOVA. To assess the difference in
Gs-ref at each date within each site or between sites from the same
region, we used a two-way ANOVA with one repeated measure factor