Table 5 Contents of selected soil chemical properties in relation to different land uses and soil depth (mean ± SD)

pH (H₂O)

0–0.2

7.23 (± 0.16)

6.94 (± 0.04)

6.8 (± 0.49)

6.3 (± 0.04)

6.91 (± 0.41)

0.2–0.4

7.34 (± 0.16)

6.89 (± 0.1)

6.73 (± 0.64)

6.11 (± 0.05)

6.89 (± 0.55)

0.4–0.6

7.35 (± 0.08)

6.89 (± 0.09)

6.85 (± 0.52)

6.33 (± 0.09)

6.94 (± 0.46)

Overall

7.31 (± 0.15)c

6.91 (± 0.07)b

6.80 (± 0.48)b

6.23 (± 0.12)a

OC (%)

0–0.2

6.38 (± 0.59)

3.39 (± 0.45)

2.71 (± 0.29)

1.86 (± 0.12)

4.02 (2.04)b

0.2–0.4

4.22 (± 0.39)

2.93 (± 0.12)

2.23 (± 0.20)

1.63 (± 0.19)

3.12 (1.43)a

0.4–0.6

2.89 (± 0.8)

1.94 (± 0.15)

1.68 (± 0.19)

1.15 (± 0.26)

2.52 (1.31)a

Overall

4.80 (± 1.57)c

2.77 (± 0.66)b

2.15 (± 0.42)ab

1.61 (± 0.34)a

TN (%)

0–0.2

049 (± 0.11)

0.28 (± 0.07)

0.16 (± 0.01)

0.13 (± 0.01)

0.33 (± 0.22)b

0.2–0.4

0.36 (± 0.03)

0.21 (± 0.03)

0.17 (± 0.03)

0.1 (± 0.02)

0.23 (± 0.11)a

0.4–0.6

0.31 (± 0.04)

0.15 (± 0.04)

0.13 (± 0.01)

0.09 (± 0.02)

0.18 (± 0.09)a

Overall

0.38 (± 0.17)b

0.21 (± 0.07)a

0.15 (± 0.03)a

0.11 (± 0.02)a

C:N

0–0.2

12.13 (± 0.54)

12.62 (± 3.130)

16.58 (± 1.03)

14.79 (± 0.75)

13.33 (± 2.38)

0.2–0.4

12.46 (± 0.39)

14.44 (± 1.97)

13.43 (± 1.75)

16.15 (± 2.33)

13.93 (± 2.21)

0.4–0.6

11.52 (± 1.11)

13.57 (± 2.92)

12.96 (± 1.35)

12.31 (± 0.24)

14.01 (± 1.95)

Overall

13.08 (± 2.04)

13.61 (± 2.37)

13.99 (± 1.73)

15.03 (± 2.28)