| Symbol | Description | Uses |
| Kpo4 | 3 |
| File | Line number | Procedure | Code |
| ./pkg/dic/DIC_BIOTIC.h | 14 | NO PROCEDURE |
& Kpo4, DOPfraction, zcrit, KRemin, |
| ./pkg/dic/DIC_BIOTIC.h | 36 | NO PROCEDURE |
_RL Kpo4 |
| ./pkg/dic/dic_biotic_param.F | 56 | DIC_BIOTIC_PARAM |
Kpo4 = 5.d-4 ! half saturation phosphate constant (mol/m3) |