Abstract
Water uptake or transpiration by plants in (agro)hydrological studies is a core
component in the water balance. A good description of this process in simu-
lation models is therefore desirable. Especially now that we are facing more
prolonged droughts during the growing season and increasing trends in pre-
cipitation deficit, and also in studies involving control of (precision) irrigation
based on modelled water uptake. In this paper, we show that a mechanistic
description of the water transport process to the root wall allows more water to
be taken up than the classical empirical Feddes concept used in simulation mod-
els. According to these mechanistic concepts, water uptake is a function of both
crop parameters and soil properties.
component in the water balance. A good description of this process in simu-
lation models is therefore desirable. Especially now that we are facing more
prolonged droughts during the growing season and increasing trends in pre-
cipitation deficit, and also in studies involving control of (precision) irrigation
based on modelled water uptake. In this paper, we show that a mechanistic
description of the water transport process to the root wall allows more water to
be taken up than the classical empirical Feddes concept used in simulation mod-
els. According to these mechanistic concepts, water uptake is a function of both
crop parameters and soil properties.
| Translated title of the contribution | Simulation of Root Water Uptake in SWAP-WOFOST: from an Empirical Approach to a Mechanistic Approach |
|---|---|
| Original language | Dutch |
| Pages (from-to) | 5-16 |
| Journal | Stromingen : vakblad voor hydrologen |
| Volume | 30 |
| Issue number | 1 |
| Publication status | Published - 2024 |