Table 1 Summary of environmental conditions for the three clusters (A, B, and C) and the control groups with means. Standard deviations are presented in parentheses. Superscript letters indicate significant differences between clusters based on Dunn’s test, p < 0.05

Altitude (m)

3.71 (1.26) ^a

2.82 (0.23) ^b

3.89 (0.73) ^a

3.31 (0.69)

Soil moisture (%)

14.70 (5.03) ^a

17.51 (1.70) ^b

11.96 (5.29) ^c

13.54 (5.83)

Soil organic matter (%)

1.28 (0.62) ^a

1.70 (0.25) ^b

1.24 (0.67) ^a

1.33 (0.57)

pH

6.89 (0.54)

7.23 (0.17)

7.04 (0.59)

7.73 (0.49)

Salinity (ppm)

634.57 (620.74) ^a

1508.54 (367.09) ^b

564.33 (548.07) ^a

1036.58 (537.65)

Sand (%)

45.97 (35.33) ^a

8.71 (8.11) ^b

60.39 (26.31) ^a

35.64 (36.16)

Clay (%)

15.29 (12.33) ^a

17.73 (6.02) ^b

10.59 (8.40) ^a

12.91 (9.17)

Silt (%)

38.74 (23.74) ^a

73.55 (4.85) ^b

29.23 (19.00) ^a

51.45 (30.10)