Soil types and master horizons

Addo

Augrabies

Bransvlei

Soil characteristics

A

B1

C

A

B1

B2

A

B1

C

Physical properties

Coarse sand (%)

1.68

1

1.7

12.4

14

16.1

1.9

0.9

0.9

Medium sand (%)

2.42

2.1

3

3.6

3.9

3.1

1.8

1.4

1.7

Fine sands (%)

14.4

19.4

19.9

40

45.5

43

55

51.1

56.6

Very fine sand (%)

19.1

18.9

18

16.4

11.1

16.2

20.7

22.1

19.5

Coarse silt (%)

13.6

12.4

12.3

7.6

6.4

5.7

3

5

3

Fine silt (%)

23.6

19.7

18.8

6

4.8

5.7

2.6

6.3

5.5

Clay (%)

24.1

25

26

14.6

15.8

11.7

15.1

13.5

12.8

Bulk density (g・cm⁻³)

1.52

1.52

1.48

1.76

1.73

1.66

1.69

1.59

1.53

Exchangeable cations

Calcium (mg・kg⁻¹)

7650

5090

4850

1788

1566

1054

6320

6240

2950

Magnesium (mg・kg⁻¹)

1340

1710

1600

305

348

820

700

920

1450

Potassium (mg・kg⁻¹)

313

210

157

326

176

207

186

241

282

Sodium (mg・kg⁻¹)

60

41

46

18

18

21

25

29

101