ity D/v (L), that can be related solely to characteristics of the porous medium (Fried and Combarnous, Dispersivity ( ) is a required input parameter in solute-transport 1971). Dispersivity is a required input parameter in conmodels based on the advection-dispersion equation (ADE). Normally is obtained from miscible-displacement experiments. This depentaminant transport models based on the ADE ...

Modeling of irrigation and agricultural drainage requires knowledge the soil hydraulic properties. However, uncertainty in direct measurement saturation moisture content (θs) has been generated several methodologies for its estimation, such as Pedotransfer Functions (PTFs) Artificial Neuronal Networks (ANNs). In this work, eight different PTFs were developed which relate to proportion sand clay...

Abstract Pedotransfer functions (PTFs) describing soil water retention curves (WRCs) have been widely used in crop, soil, and land surface models. A limitation of the available PTFs is that they fail to account for shape changes WRCs due bulk density variations caused by tillage, compaction, other processes. This study develops new include effects on WRC shape. framework introduced build densit...