Table 1.
Fixed, not previously calibrated parameters used in the SOX+ model.
| Parameter | Units | Value | Source |
|---|---|---|---|
| EaVcmax | J mol−1 | 52,750 | Wang et al. (1996) |
| EdVcmax | J mol−1 | 202,600 | Wang et al. (1996) |
| SVcmax | J mol−1 K−1 | 669 | Wang et al. (1996) |
| EaJmax | J mol−1 | 61,750 | Wang et al. (1996) |
| EdJmax | J mol−1 | 185,600 | Wang et al. (1996) |
| SJmax | J mol−1K−1 | 621 | Wang et al. (1996) |
| Rd25 | μmol m−2 s−1 | 0.5 | Calculated as Vcmax, 25 * 0.015 |
| Q10 | unitless | 2 | This study |
| μmol mol−1 | 42.2 | Bernacchi et al. (2001) | |
| EaΓ* | J mol−1 | 37,830 | Bernacchi et al. (2001) |
| Kc, 25 | μmol mol−1 | 404 | Bernacchi et al. (2001) |
| EaKc | J mol−1 | 84,200 | Bernacchi et al. (2001) |
| KO, 25 | μmol mol−1 | 278,000 | Bernacchi et al. (2001) |
| EaKO | J mol−1 | 15,200 | Bernacchi et al. (2001) |
| gmin | mmol m−2 s−1 | 2 | This study |
| LA | m−2 | 1.35 | This study |
| Height | M | 2 | This study |
| SoilDensity | g cm−3 | 1.3 | This study |
| FieldCapacity | cm−3cm−3 | 0.35 | This study |
EaVcmax, EdVcmax, and SVcmax are the activation energy, deactivation energy, and entropy for the Vcmax temperature response, respectively. EaJmax, EdJmax, and SJmax are the activation energy, deactivation energy, and entropy for the Jmax temperature response. Rd25 is the dark respiration at 25°C, calculated from Vcmax, 25 according to Collatz et al. (1991), and Q10 is the increase rate of Rd as temperature increases. and EaΓ* are the CO2 compensation point at 25°C and the activation energy of the compensation point. KO, 25 and Kc, 25 are the kinetic constants of oxidase and carboxylase activity for rubisco at 25°C, respectively. EaKO and EaKc are the energy activation for the oxidase and carboxylase activity of rubisco, respectively. gmin is the minimum leaf conductance, which integrates both residual stomatal conductance because of imperfect stomatal closure and leaf cuticular conductance. LA is the average tree leaf area on day 1 of the experiment. Height is the average tree height. Soil density and field capacity are the dry soil weight per unit of soil volume and the volumetric soil water content at saturation, respectively. Given are parameter names, units, values, and reference.