Prediction of soil evaporation measured with weighable lysimeters using the FAO Penman–Monteith method in combination with Richards’ equation

Multiannual data (2016–2018) from 12 weighed lysimeters (four soil types with textures ranging sandy loam to silt loam, three replicates) of the TERENO SOILCan network were used evaluate if evaporation (E) rates could be predicted weather using FAO Penman–Monteith (PM) method combined water flow simulations Richards equation. Soil hydraulic properties (SHPs) estimated either texture ROSETTA pedotransfer functions, in situ measured retention curves, or surface contents inverse modeling. In all years, E was limited and (Em) surprisingly did not vary significantly among four different types. When SHPs derived functions used, simulated finer textured soils overestimated ones considerably. Better agreement obtained when based on inversely SHPs. The represented unrealistically large characteristic lengths (Lc), Lc found a useful constrain estimates Also, Em below Epot (PM scaled by an empirical coefficient), diurnal dynamics followed those Epot. equation that considers only isothermal liquid reproduce these caused temperature dependent vapor transport soil.