Modeling diurnal Anet responses
Using the species-specific diurnal patterns (Fig. 2), we modelledAnet for all species with diurnal changes inVcmax and Jmax (scaled to
maximum average Vcmax andJmax ), maximum (peak)Vcmax and Jmax , averageVcmax and Jmax , and
minimum Vcmax and Jmax(Fig. 5). When integrating modelled Anet over
three separate 24-hour periods, accumulated net carbon gain is increased
under peak photosynthetic capacity relative to the diurnal case by
~8 to 215% (corresponding to a 5 to 67% change in
gross CO2 assimilation (Agross );
Table 2, Fig. 5). Under average photosynthetic capacity relative to the
diurnal case, Anet changes by -19 to 36%
(corresponding to a -16 to 28% change in Agross ;
Table 2, Fig. 5). Under minimum photosynthetic capacity relative to the
diurnal case, Anet changes by -303 to -6%
(corresponding to a -61 to -4% change in Agross ;
Table 2, Fig. 5).