Research Article

Effects of Superabsorbent Polymers on the Hydraulic Parameters and Water Retention Properties of Soil

Figure 1

3D unsaturated diffusivity at different times. (a) Control group; (b) P-S1; (c) P-S2; (d) P-S3. Note: the SAP application time at a point is equal to its -axis value multiplied by 100.
(a)
(b)
(c)
(d)