Table 1 Basic soil properties of the studied rice soil chronosequence.

From: Long-term rice cultivation stabilizes soil organic carbon and promotes soil microbial activity in a salt marsh derived soil chronosequence

Soil

SOC (g kg−1)

TN (g kg−1)

C/N

BD (g cm−3)

pH (H2O)

CEC (cmol kg-1)

Fed (g kg−1)

MWD (μm)

P0

6.32 ± 0.58d

0.79 ± 0.02c

7.99 ± 0.36c

1.31 ± 0.05a

8.62 ± 0.07a

6.32 ± 0.34c

1.76  ± 0.02c

86.46 ±  6.19c

P50

15.96 ± 0.66c

1.81 ± 0.06b

8.84 ± 0.27b

1.13 ± 0.03b

7.84 ± 0.04b

12.82 ± 0.06b

1.96 ± 0.01b

109.52 ± 2.13b

P100

17.07 ± 0.49b

2.06 ± 0.09a

8.28 ± 0.34b

1.06 ± 0.04b

6.39 ± 0.05d

12.54 ± 0.12b

2.04 ± 0.04a

110.80 ± 1.27b

P300

17.97 ± 0.81b

2.09 ± 0.08a

8.60 ± 0.18b

1.07 ± 0.07b

6.40 ± 0.03d

13.78 ± 0.26a

2.08 ± 0.05a

125.77 ± 7.79a

P700

21.07 ± 1.21a

2.14 ± 0.06a

9.85 ± 0.27a

1.06 ± 0.05b

6.65 ± 0.08c

12.97 ± 0.27b

1.71 ± 0.02c

132.24 ± 8.50a

  1. Note: BD, bulk density; TN: total nitrogen; CEC, cation exchange capacity; Fed: dithionate extractable iron oxyhydrates; MWD: mean weight diameter.
  2. Mean ± SD, n = 3. Different letters in a same column indicate a significant difference (p < 0.05) between soils.
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