Table D.5.
New switches and parameters used for automatic irrigations in MACRO
| Parameter | Description |
|---|---|
| 1 | 0 = No automatic irrigations, 1 = automatic irrigations are used |
| 1 | aIrrigation under crop canopy (= 1) or above canopy (= 0) |
| 0 | 0 = User‐defined irrigation amount, 1 = Automatic calculation of irrigation amount (default) |
| f crit | bCritical fraction for triggering automatic irrigation |
| 0.95 | Fraction of plant‐available water replenishment |
| 5 | Irrigation intensity (mm h−1) |
| 30 | Irrigation amount (mm) IF user‐defined irrigation amount) |
a
Set to 1 for tall crops and zero for short crops.
b
fcrit = 0.1 for D3 scenarios, 0.42 for D4 and 0.46 for D6 scenarios, calculated from the topsoil water retention data and a critical tension of −300 cm.