Table 2 The effect of P. juliflora species invasion rate on soil physical and chemical properties

OC (%)

Amibara

1.14 ± 0.04

1.14 ± 0.13

1.02 ± 0.1

1.89 ± 0.25

Gewane

1.64 ± 0.09

1.75 ± 0.14

0.52 ± 0.07

0.75 ± 0.02

Mean

1.39 ± 0.12^a

1.37 ± 0.27^a

0.77 ± 0.06^b

1.32 ± 0.01^a

Ex. Na (cmol (+)/kg)

Amibara

1.02 ± 0.44

2.68 ± 0.43

2.96 ± 0.29

1.07 ± 0.13

Gewane

1.43 ± 0.07

3.21 ± 0.61

0.59 ± 0.08

0.81 ± 0.26

Mean

1.22 ± 0.22^b

2.94 ± 0.35^a

1.77 ± 0.54^b

0.93 ± 0.14^b

Ex. K (cmol (+)/kg)

Amibara

0.89 ± 0.05

0.69 ± 0.06

0.87 ± 0.27

0.89 ± 0.12

Gewane

1.0 ± 0.03

1.01 ± 0.04

0.83 ± 0.18

0.99 ± 0.18

Mean

0.94 ± 0.03^a

0.85 ± 0.07^a

0.85 ± 0.14^a

0.93 ± 0.09^a

Ex. Ca (cmol (+)/kg)

Amibara

11.73 ± 0.72

11.23 ± 1.02

8.23 ± 0.77

7.1 ± 0.46

Gewane

7.8 ± 1.39

9.83 ± 0.54

4.17 ± 0.12

5.73 ± 0.12

Mean

9.76 ± 1.12^a

10.5 ± 0.60^a

6.2 ± 0.97^b

6.41 ± 0.37^b

Ex. Mg (cmol (+)/kg)

Amibara

2.4 ± 0.5

2.27 ± 0.42

2.77 ± 0.43

2.9 ± 0.15

Gewane

3.03 ± 0.12

2.8 ± 0.25

2.6 ± 0.04

2.87 ± 0.24

Mean

2.71 ± 0.27^a

2.53 ± 0.25^a

2.68 ± 0.19^a

2.88 ± 0.12^a

Av. P (mg/kg)

Amibara

3.57 ± 0.18

2.56 ± 0.59

4.25 ± 2.16

4.19 ± 0.38

Gewane

24.04 ± 1.34

16.52 ± 6.63

2.31 ± 0.75

3.93 ± 0.44

Mean

13.8 ± 4.61^a

9.53 ± 4.31^ab

3.28 ± 1.11^b

1.32 ± 0.26^b

TN (%)

Amibara

0.11 ± 0.01

0.12 ± 0.02

0.08 ± 0.01

0.074 ± 0.01

Gewane

0.12 ± 0.05

0.14 ± 0.01

0.13 ± 0.02

0.11 ± 0.01

Mean

0.11 ± 0.02^a

0.13 ± 0.01^a

0.10 ± 0.01^a

0.09 ± 0.01^a

CEC (meq/100 g)

Amibara

42.3 ± 0.86

43.3 ± 0.87

46.3 ± 0.37

43.3 ± 2.89

Gewane

44.3 ± 5.6

49.6 ± 3.49

41.7 ± 9.0

44.1 ± 7.21

Mean

43.3 ± 2.57^a

46.5 ± 2.14^a

44.0 ± 4.16^a

43.8 ± 3.47^a

BD (g/cm³)

Amibara

1.12 ± 0.04

1.23 ± 0.03

1.28 ± 0.05

1.21 ± 0.19

Gewane

0.96 ± 0.03

1.12 ± 0.01

1.38 ± 0.01

1.39 ± 0.02

Mean

1.07 ± 0.05^b

1.17 ± 0.02^ab

1.32 ± 0.03^a

1.30 ± 0.09^a

MC (%)

Amibara

13.22 ± 0.66

8.94 ± 0.33

8.19 ± 0.47

5.47 ± 0.74

Gewane

15.45 ± 1.62

10.46 ± 0.38

6.04 ± 0.26

4.41 ± 0.24

Mean

14.33 ± 0.92^a

9.69 ± 0.40^b

7.11 ± 0.53^c

4.94 ± 0.42^d

Clay (%)

Amibara

41.7 ± 2.9

33.7 ± 10.7

45.1 ± 1.3

27.1 ± 2.7

Gewane

42.4 ± 9.2

46.4 ± 4.2

35.1 ± 1.8

22.4 ± 1.2

Mean

42.0 ± 4.3^a

40.0 ± 5.8^ab

40.0 ± 2.4^ab

24.7 ± 1.6^b

Silt (%)

Amibara

43.3 ± 2.4

40.7 ± 5.2

30.0 ± 2.3

39.3 ± 1.3

Gewane

49.3 ± 7.1

39.3 ± 7.4

7.3 ± 1.8

39.3 ± 3.3

Mean

46.3 ± 3.59^a

40.0 ± 4.06^a

18.66 ± 5.23^b

39.3 ± 1.60^a

Sand (%)

Amibara

14.9 ± 0.7

25.6 ± 6.4

24.9 ± 1.3

33.6 ± 2.3

Gewane

8.3 ± 2.4

14.3 ± 4.1

57.6 ± 1.2

38.3 ± 2.4

Mean

11.6 ± 1.8^b

19.9 ± 4.24^b

41.26 ± 7.34^a

35.9 ± 1.8^a