EC (mS/cm)

pH

Pore-water cation (mg/L)

Total cation

(mg/L)

Divalent cation ratio (%)

Pore-water anion (mg/L)

Na⁺

K⁺

Ca²⁺

Mg²⁺

Cl⁻

Original soil sample

Before leaching

Squeezed solution

6.20

8.4

150

39

440

232

861

78

125

1000

After leaching

Leachate

0.13

7.5

7

3

24

4

38

74

10

8

Squeezed solution

2.80

8.5

49

22

270

162

503

86

117

350

Seawater-saturated soil sample

Before leaching

Squeezed solution

54.00

8.4

9300

320

390

246

10256

6

18900

4100

After leaching

Leachate

0.20

7.5

39

1

1

<1

41

3

38

10

Squeezed solution

0.34

7.1

110

6

5

<1

121

5

70

56