Table 2 Soil particle-size distribution in different plant communities.

From: Fractal dimension of particle-size distribution and their relationships with alkalinity properties of soils in the western Songnen Plain, China

Code

Soil particle size distribution/%

Soil textural class

Cu

Cc

Coarse sand/mm

Fine sand/mm

Silt/mm

Clay/mm

2–0.25

0.25–0.05

0.05–0.002

 < 0.002

NS

15.45 ± 0.47

71.49 ± 0.54

10.66 ± 0.15

2.40 ± 0.13

Fine sand

5.87

2.11

SS1

7.85 ± 0.25

68.65 ± 0.49

18.92 ± 0.22

4.58 ± 0.21

Loamy fine sand

16.64

4.99

SS2

8.96 ± 0.37

58.99 ± 1.03

24.09 ± 1.17

7.96 ± 0.82

Fine sandy loam

40.32

6.69

SS3

4.97 ± 0.14

77.78 ± 0.85

13.52 ± 0.35

3.73 ± 0.11

Loamy fine sand

9.09

3.35

SS4

5.61 ± .0.14

49.48 ± 0.52

34.23 ± 0.60

10.68 ± 0.32

Very fine sandy loam

40.67

2.99

SS5

7.79 ± 0.19

64.98 ± 0.41

21.23 ± 0.29

6.02 ± 0.10

Fine sandy loam

31.26

8.74

  1. NS means normal soil, SS1, SS2, SS3, SS4, SS5 stand for different degree of sodic soil; Cu and Cc stand for uniformity coefficient and curvature coefficient, respectively. Soil particle percentage content expressed by average value ± standard deviation (n = 3).
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