Table 2 SOC, TN, and C/N ratios at different depths in the secondary forest, the organic tea plantation, and the organic tea plantation

0–10 cm

Second

160.95

12.08

13.30

Forest

(6.71)^a

(0.28)^a

0.85)^a

Org. TP

34.30 (1.91)^c

3.35 (0.27)^c

10.26 (0.27)^b

Conv. TP

47.30 (4.95)^b

4.71 (0.58)^b

10.06 (0.24)^b

10–30 cm

Second

17.50

1.67

10.43

Forest

(3.04)^a

(0.18)^a

(0.67)^a

Org. TP

20.62 (0.76)^a

2.10 (0.12)^a

9.81 (0.34)^ab

Conv. TP

16.96 (2.69)^a

1.82 (0.34)^a

9.34 (0.26)^b

30–50 cm

Second

12.20

1.27

9.58

Forest

(2.32)^a

(0.17)^ab

(0.58)^a

Org. TP

13.80 (1.47)^a

1.37 (0.14)^a

10.06 (0.13)^a

Conv. TP

7.69 (0.59)^b

1.01 (0.08)^b

7.61 (0.28)^b