A Low-Cost Automated Test Column to Estimate Soil Hydraulic Characteristics in Unsaturated Porous Media

Figure 5

(a) Plot of water retention function for different unsaturated porous media using the soil parameters presented in Table 1, according to the formulation of van Genuchten [17] and (b) unsaturated hydraulic conductivity as a function of matric potential by using soil hydraulic parameters included in Table 1 and (5).

(a)

(b)