Clay minerals dominate the soil colloidal fraction and its specific surface area. Differences among clay mineral types significantly influence their effects on hydrological mechanical behavior. Presently, content is used to parameterize hydraulic properties (SHMP) for land models while disregarding type of mineral. This undifferentiated use leads inconsistent parameterization, particularly betw...

Using pedotransfer functions (PTF) to estimate soil hydraulic properties may be necessary in soil water flow simulations for large-scale projects or in pilot studies. The accuracy of a PTF outside of its development dataset is generally unknown. The existence of multiple models that are developed and tested in one region, but may perform relatively poorly in other regions, is also common in met...

We need measurements of soil water retention (SWR) and available capacity (AWC) to assess model functions, but methods are time-consuming expensive. Our aim here was investigate the modelling AWC SWR with visible–near-infrared spectra (vis–NIR) machine-learning method cubist. used soils from 54 locations across Australian agricultural regions, three depths: 0–15 cm, 15–30 cm 30–60 cm. The volum...

Soil hydraulic parameters (SHPs) required as inputs for numerical models are scarce in Sahelian regions. Instead, they estimated using pedotransfer functions (PTFs), but their ability to simulate soil water dynamics has not been evaluated. This study aims parameterize SHPs with seven different PTFs and inverse modelling examine fluxes Senegal’s Groundnut basin. We used four years of field measu...

Abstract Earth system models use soil information to parameterize hard-to-measure hydraulic properties based on pedotransfer functions. However, current parameterizations rely sample-scale which often does not account for biologically-promoted structure and heterogeneities in natural landscapes, may significantly alter infiltration-runoff other exchange processes at larger scales. Here we propo...