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Table 4 The soil organic carbon, total nitrogen and total phosphorus contents at sampling sites

From: Effect of crevice density on biological soil crust development on rock cut slope in mountainous regions, Sichuan, China

Regions

Site

FA (years)

TN (g kg−1)

OC (g kg−1)

TP (g kg−1)

RS

CK

RS

CK

RS

CK

SR1

JJS3

2.5

1.46 ± 0.46Ba

1.28 ± 0.14a

42.30 ± 32.92Ba

42.30 ± 3.88a

0.85 ± 0.09BCa

0.89 ± 0.03a

ZGX1

4

2.10 ± 0.99Ba

2.75 ± 0.42a

36.00 ± 11.11Bb

68.87 ± 11.06a

2.46 ± 0.36Aa

0.86 ± 0.16b

ZGX2

4

2.37 ± 3.39Ba

2.75 ± 0.42a

68.66 ± 47.54Ba

68.87 ± 11.06a

1.19 ± 0.32Ba

0.86 ± 0.16a

QQH1

13

6.02 ± 1.67Aa

2.75 ± 0.42b

74.67 ± 23.29Ba

68.87 ± 11.06a

2.31 ± 1.11Aa

0.86 ± 0.16b

JJS2

8

2.22 ± 1.15Ba

0.97 ± 0.11b

56.36 ± 11.43Ba

13.56 ± 4.39b

0.97 ± 0.19BCa

0.99 ± 0.03a

JJS1

8

2.13 ± 1.03Ba

1.03 ± 0.03b

38.85 ± 20.43Bab

22.04 ± 1.21b

0.87 ± 0.39BCa

0.98 ± 0.03a

HDZ1

27

1.56 ± 1.02Bb

2.75 ± 0.42a

102.96 ± 43.13Aa

68.87 ± 11.06b

0.44 ± 0.19Cb

0.86 ± 0.16a

SR2

BSC1

1.5

2.42 ± 1.19Ba

3.00 ± 0.19a

90.50 ± 32.13Ba

55.74 ± 4.73b

0.55 ± 0.15Ba

0.42 ± 0.02a

HBZ1

5

4.03 ± 1.80Aa

3.00 ± 0.19a

123.03 ± 20.44Aa

55.74 ± 4.73b

0.82 ± 0.18Aa

0.42 ± 0.02b

BSC2

1.5

2.15 ± 0.65Ba

2.97 ± 0.21a

47.29 ± 23.57Ca

53.38 ± 4.01a

0.69 ± 0.19ABa

0.43 ± 0.42b

JHZ1

1.5

0.96 ± 0.39Cb

3.00 ± 0.19a

18.61 ± 6.82Db

55.74 ± 4.73a

0.52 ± 0.06Ba

0.42 ± 0.02b

XYZ1

2.5

2.23 ± 1.07Ba

2.53 ± 0.45a

37.23 ± 18.07DCb

46.56 ± 2.37a

0.76 ± 0.25Aa

0.61 ± 0.07b

BSH1

 > 60

3.48 ± 1.94ABa

2.92 ± 0.19a

73.81 ± 18.87Ba

45.92 ± 0.69b

0.85 ± 0.33A

0.66 ± 0.08

  1. FA represents formation age of RCSs; RS and CK represent soils sampled on RCSs and natural slopes, respectively. The date of TN, OC, and TP are expressed in mean ± standard deviation. Within the same region, different lowercase letters represent the significantly different (P < 0.05) in major soil nutrients between RS and CK, and different capital letters represent the significantly different (P < 0.05) in major soil nutrients among different sites in the same region