Land use

Horizon

Depth

(cm)

OC

(g∙kg−1)

TC

(g∙kg−1)

C/N

pH

CEC

(cmolc∙kg−1)

Exchangeable cation (cmolc∙kg−1)

Base satu.

(%)

Available P (mg P2O5∙kg−1)

P absorption

(mg∙100g−1)

H2O

KCl

Ca

Mg

K

Na

Upland field

(STM 1)

Ap1

0 - 16

36.0

3.0

12.1

6.4

5.8

34.6

19.9

5.4

0.7

0.1

75.0

441

2191

Ap2

16 - 30

35.9

3.0

12.0

6.2

5.7

33.0

19.8

5.4

0.4

0.1

78.1

386

2233

AB

30 - 43

28.5

2.2

12.9

6.1

5.7

27.5

15.5

4.1

0.1

0.1

71.9

105

2429

Bw1

43 - 70

18.2

1.4

13.5

6.4

5.7

29.1

7.1

1.5

0.1

0.1

30.1

8

2490

Bw2

70 - 90

17.0

1.3

13.2

6.4

5.8

22.3

7.8

1.5

0.2

0.1

43.1

6

2502

2B

90 - 100+

27.1

1.8

14.7

6.5

5.8

33.6

10.3

1.3

0.3

0.1

35.5

7

2532

Secondary

forest

(STM2)

Oie

+1 - 0

A1

0 - 10

90.4

7.4

12.3

5.1

4.3

38.5

1.1

0.5

0.4

0.1

5.5

63

2356

A2

10 - 22

60.7

3.9

15.7

5.0

4.5

43.0

0.2

0.1

0.1

0.1

1.4

27

2468

A3

22 - 38

62.6

4.0

15.7

5.2

4.6

27.2

0.8

0.3

0.1

0.1

4.6

15

2479

A4

38 - 50

48.3

3.3

14.5

5.4

4.8

28.9

0.9

0.6

0.1

0.1

6.2

6

2497

Bw1

50 - 72

33.3

2.5

13.4

5.5

5.1

22.0

0.6

0.5

0.1

0.1

5.1

3

2400

Bw2

72 - 100+

21.4

1.9

11.2

5.5

5.1

28.9

0.6

0.5

0.1

0.1

4.1

3

2415