Simulation and Prediction of Ion Transport in the Reclamation of Sodic Soils with Gypsum Based on the Support Vector Machine

Figure 2

Changes in the measured values of Ca²⁺ in the leachate with leaching times ((a) T1; (b) T2; (c) T3; (d) T4). The explanation of each condition (T1–T4) is reported in Table 2.

(a)

(b)

(c)

(d)