Table 2 Concentrations of heavy metals in the soil samples.

From: Changes in rhizosphere bacterial communities during remediation of heavy metal-accumulating plants around the Xikuangshan mine in southern China

Samples

Sb (mg/kg)

As (mg/kg)

Pb (mg/kg)

Zn (mg/kg)

Cr (mg/kg)

Cd (mg/kg)

LLR

24.63 ± 1.68b

126.7 ± 34.44a

31.12 ± 1.04a

167.68 ± 15.79b

174.62 ± 2.84b

1.04 ± 0.04b

LLB

117.46 ± 13.81a

88.66 ± 32.08b

41.79 ± 1.45b

223.93 ± 11.63a

205.38 ± 13.95a

2.58 ± 0.12a

LBR

17.36 ± 1.13b

58.78 ± 4.63b

35.84 ± 2.93b

141.62 ± 2.73a

171.40 ± 4.28b

0.54 ± 0.02a

LBB

51.19 ± 6.04a

85.07 ± 0.99a

25.34 ± 1.14a

123.28 ± 5.69b

194.80 ± 4.60a

0.12 ± 0.03b

CLR

20.96 ± 2.49b

165.26 ± 11.53a

33.50 ± 2.20a

206.69 ± 5.64b

291.44 ± 1.75a

0.78 ± 0.06b

CLB

150.18 ± 6.37a

127.47 ± 8.86b

27.83 ± 2.14b

230.07 ± 21.15a

291.96 ± 3.03a

1.27 ± 0.07a

CBR

1.54 ± 0.19b

65.36 ± 2.82b

20.91 ± 1.75b

102.32 ± 12.56b

173.33 ± 14.82b

0.04 ± 0.03b

CBB

32.07 ± 3.93a

130.39 ± 7.13a

31.19 ± 1.98a

152.72 ± 1.95a

240.55 ± 6.41a

0.78 ± 0.08a

Global soil background

1

6

35

90

70

0.35

Multiple

1.54–117.46

9.80–27.54

0.60–1.19

1.14–2.56

2.45–4.17

0.11–7.37

  1. “Multiple” is the heavy metal concentrations in all samples, expressed as a range calculated from the heavy metal content of each sample/Global soil background value. Data are reported as means ± standard deviations (n = 3). Different letters indicate significant difference between the rhizosphere and bulk soil at the 0.05 level.
  2. Note: The English in this document has been checked by at least two professional editors, both native speakers of English. For a certificate, please see: http://www.textcheck.com/certificate/606Jrh.
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