Table 3 Soil organic carbon and its active components under different treatments.

From: Changes in soil microbial community composition and organic carbon fractions in an integrated rice–crayfish farming system in subtropical China

Soil depths

TOC (g·kg−1)

MBC (mg·kg−1)

DOC (mg·kg−1)

POC (g·kg−1)

(cm)

MR

CR

MR

CR

MR

CR

MR

CR

0–10

15.66 ± 1.48b

20.90 ± 0.81a

307.43 ± 28.30a

294.37 ± 43.10a

30.73 ± 4.80b

48.67 ± 4.02a

4.56 ± 0.05b

6.24 ± 0.72a

10–20

14.15 ± 0.86b

17.34 ± 1.17a

216.85 ± 11.35a

260.62 ± 34.83a

27.94 ± 2.21b

48.38 ± 3.09a

3.19 ± 0.54b

4.98 ± 0.87a

20–30

11.50 ± 1.28b

15.73 ± 1.73a

195.18 ± 16.59b

261.69 ± 26.50a

29.35 ± 1.24b

50.31 ± 7.09a

2.95 ± 0.19b

4.71 ± 0.51a

30–40

7.72 ± 0.87b

10.16 ± 0.99a

97.07 ± 10.44b

135.93 ± 17.19a

30.22 ± 2.24b

40.10 ± 4.87a

1.16 ± 0.12b

1.74 ± 0.28a

  1. MR, rice monoculture model; CR, Integrated rice–crayfish model. TOC, total organic carbon; MBC, microbial biomass carbon; DOC, dissolved organic carbon; POC, particulate organic carbon. Means with different letters for the same property in the same soil layer indicate significant differences at p < 0.05. Values are means ± standard errors.
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