Table 1 Seasonal variations in physicochemical characteristics of sediments and overlying water.

From: Structure and community assembly of rare bacterial community in sediments of Sancha Lake

Season

Spring

Summer

Autumn

Winter

pH

6.37 ± 0.17 c

8.01 ± 0.09 a

7.76 ± 0.29 a

6.97 ± 0.17 b

DO (mg·L− 1)

9.26 ± 0.80 a

5.44 ± 0.74 b

5.11 ± 0.65 b

6.27 ± 1.04 b

TN (mg·g− 1)

1.37 ± 0.44 a

1.07 ± 0.29 a

1.16 ± 0.55 a

1.22 ± 0.46 a

TP (mg·g− 1)

1.21 ± 0.76 ab

1.10 ± 0.60 b

1.44 ± 0.77 ab

2.22 ± 0.99 a

SRP (mg·kL− 1)

40.92 ± 22.15 a

10.56 ± 7.94 b

16.00 ± 14.68 ab

20.00 ± 17.05 ab

CODMn (mg·L− 1)

4.17 ± 0.57 b

2.83 ± 0.64 c

3.01 ± 0.51 c

5.23 ± 1.00 a

Fe (mg·g− 1)

16.92 ± 8.65 a

14.98 ± 6.80 a

23.13 ± 24.30 a

17.26 ± 7.60 a

Ca (mg·g− 1)

45.54 ± 10.13 a

40.29 ± 12.35 a

49.09 ± 7.78 a

53.04 ± 10.88 a

  1. Note: The water overlying the sediments were tested for DO, SRP, and CODMn; the sediments were tested for pH, TN, TP, Fe and Ca. Means ± standard deviation were used for data. Within the same row, values labelled with different letters (a, b, c) indicated significant differences (P < 0.05), while shared letter implied statistically homogeneous groups. Data with letters ab were insignificantly different from the data with a or b.The original data are shown in Appendix 1.
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