Table 1.
Soil and root parameters in the multiscale simulations
| Soil parameters | Value | Sources |
|---|---|---|
| Hydraulic characteristic | ||
| Van Genuchten alpha (m–1) | 0.1 | Fitting curve |
| Van Genuchten n (–) | 2.5 | Fitting curve |
| Residual water content (–) | 0.03 | Fitting curve |
| Porosity (–) | 0.345 | Measured |
| Saturated hydraulic conductivity (m d–1) | 0.286 | Pedotransfer function (Schaap et al. 2001) |
| Sorption characteristic | ||
| Freundlich coefficient (mg0.6 kg–1 L0.4) | 124.8 | Measured |
| Freundlich power (–) | 0.4 | Measured |
| Root parameters | Value | Sources |
| Hydraulic characteristic | ||
| Axial conductance (m4 s–1 Pa–1) | 2e-16 | Matsuo et al. (2009) |
| Radial conductivity (m s–1 Pa–1) | 6.3e-14 | Miyamoto et al. (2001) |
| Michaelis–Menten kinetics for P uptake | ||
| Maximum uptake rate (kg m–2 s–1) | 3.844e-10 | (Teo et al. (1992a) |
| Michaelis constant (kg m–3) | 1.054e-4 | (Teo et al. (1992b) |