Table 3.
Scenarios used to calculate GPP, which is used to dissect the contributions of individual factors ([CO2], Vcmax and Jmax, T, canopy structure) and their interactions to changes in GPP
| Scenarios | Elevated CO2 (X), Ambient CO2 (–) | |||
|---|---|---|---|---|
| [CO2] | V cmax, Jmax | T | Canopy structure | |
| O | – | – | – | – |
| C | X | – | – | – |
| V | – | X | – | – |
| T | – | – | X | – |
| S | – | – | – | X |
| C,V | X | X | – | – |
| C,T | X | – | X | – |
| C,S | X | – | – | X |
| V,T | – | X | X | – |
| V,S | – | X | – | X |
| T,S | – | – | X | X |
| C,V,T | X | X | X | – |
| C,V,S | X | X | – | X |
| C,T,S | X | – | X | X |
| V,T,S | – | X | X | X |
| C,V,T,S | X | X | X | X |
A dash (‘–’) represents a factor under ambient CO2 conditions, and ‘X’ represents a factor under elevated CO2 conditions. The scenarios include all the combinations of four factors, i.e. [CO2], Vcmax and Jmax, air temperature (T) and canopy structure, under two conditions, i.e. elevated [CO2] and ambient [CO2].