This review discusses the causes and consequences of 'non‐equilibrium'water flow and
solute transport in large structural pores or macropores (root and earthworm channels …

Although it has many positive effects, soil structure may adversely affect the filtering function
of the vadose zone that protects natural water resources from various sources of pollution …

A soil physical parameter, S, is defined. It is equal to the slope of the soil water retention
curve at its inflection point. This curve must be plotted as the logarithm (to base e) of the …

The hydraulic conductivity function, which is required to solve the Richards equation, is
difficult to measure. Therefore prediction methods are frequently used where the shape of …

A complete treatment of the theory and practice of groundwater engineering, The Handbook
of Groundwater Engineering, Second Edition provides a current and detailed review of how …

The commonly used hydraulic models only account for capillary water retention and
conductivity. Adsorptive water retention and film conductivity is neglected. This leads to …

A double-exponential water retention equation with 5 adjustable parameters is introduced in
order to fill the need for a user-friendly equation in which all the terms have a distinct …

Most classical predictive models of unsaturated hydraulic conductivity conceptualize the
pore space as either bundles of cylindrical tubes of uniform size or assemblies of cylindrical …

The Brooks‐Corey and van Genuchten functions were modified to adequately represent
retention at all matric suctions. The modification consisted of replacing the residual water …

The soil water retention curve (SWRC) or soil–water characteristic curve (SWCC) is a
fundamental feature of unsaturated soil that simply shows the relationship between soil …