Table 2.
List of model input and output variables
| Description | Variable | Unit | Equation | Type |
|---|---|---|---|---|
| Net photosynthetic rate | A | μmol CO2 m−2 s−1 | 9a | Output |
| RuBP carboxylation-limited A | A c | μmol CO2 m−2 s−1 | 9b | Output |
| RuBP regeneration-limited A | A j | μmol CO2 m−2 s−1 | 9c | Output |
| Leaf absorptance | α | — | 13 | Output |
| Atmospheric CO2 concentration | C a | μmol CO2 mol−1 | — | Input |
| Chloroplastic CO2 concentration | C c | μmol CO2 mol−1 | 14 | Output |
| Leaf chlorophyll per unit area | Chl | mmol m−2 | 2c | Output |
| Leaf-to-air vapor pressure deficit | D | kPa | — | Input |
| Protein degradation rate of N pool X | D X | °Cd−1 | 6 | Output |
| Factor for creating variation in N distribution | f d | — | 18 | Input |
| Factor for creating variation in N partitioning | f p | — | 19 | Input |
| Mesophyll conductance to CO2 | g m | mol CO2 m−2 s−1 | 16 | Output |
| Maximum gm | g mmax | mol CO2 m−2 s−1 | 17 | Output |
| Stomatal conductance to CO2 | g sc | mol CO2 m−2 s−1 | 15 | Output |
| PPFD at leaf | I Lc | μmol photons m−2 s−1 | — | Input |
| Daily photosynthetic photon integral at leaf | I Ld | mol photons m−2 d−1 | — | Input |
| Mean ILd during the last 4 d | I Ld4d | mol photons m−2 d−1 | — | Input |
| Electron transport rate | J | μmol e− m−2 s−1 | 12 | Output |
| Maximum electron transport rate | J max | μmol e− m−2 s−1 | 2b | Output |
| Leaf area | LA | m2 | — | Input |
| Total leaf photosynthetic N content in the canopy | N canopy | mmol N | — | Output |
| Leaf photosynthetic N content | N leaf | mmol N | — | Output |
| Leaf photosynthetic N per unit area | N ph | mmol N m−2 | 1 | Output |
| N concentration of nutrient solution | N s | mM | — | Input |
| Concentration of N pool X | N X | mmol N m−2 | 4 | Output |
| Concentration of N pool of light harvesting | N C | mmol N m−2 | 4 | Output |
| Concentration of N pool of electron transport | N J | mmol N m−2 | 4 | Output |
| Concentration of N pool of carboxylation | N V | mmol N m−2 | 4 | Output |
| Partitioning fraction of N pool X | p X | — | 3 | Output |
| Daytime respiration rate in the absence of photorespiration | R d | μmol CO2 m−2 s−1 | 10 | Output |
| Reduction factor of protein synthesis depending on N availability | r N | — | 8 | Output |
| Maximum protein synthesis rate | S max | mmol N m−2 °Cd−1 | 7 | Output |
| Protein synthesis rate of N pool X | S X | mmol N m−2 °Cd−1 | 5 | Output |
| Leaf age | t | °Cd | — | Input |
| Carboxylation rate | V c | μmol CO2 m−2 s−1 | 11 | Output |
| Maximum carboxylation rate | V cmax | μmol CO2 m−2 s−1 | 2a | Output |