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Table 4 Mean values of pH, OC, TN, C:N, and Av. P under different land use systems and elevation gradients

From: Monitoring soil quality of different land use systems: a case study in Suha watershed, northwestern highlands of Ethiopia

Soil property

Elevation gradient

Land use system

Mean ± SE

Cultivated land

Grazing land

Forest land

pH-H2O

Upper

5.85a ± 0.19

5.64a ± 0.19

5.99a ± 0.19

5.82 ± 0.11

Middle

5.56a ± 0.19

5.61a ± 0.19

5.83a ± 0.19

5.67 ± 0.11

Lower

6.13a ± 0.19

5.62b ± 0.19

5.78b ± 0.19

5.84 ± 0.11

 

Mean ± SE

5.84a ± 0.11

5.69a ± 0.11

5.79a ± 0.11

5.78 ± 0.07

OC

Upper

1.01b ± 0.48

2.05b ± 0.48

3.89a ± 0.48

2.32 ± 0.28

Middle

1.12b ± 0.48

2.49ab ± 0.48

3.04a ± 0.48

2.22 ± 0.28

Lower

1.09b ± 0.48

2.69ab ± 0.48

3.07a ± 0.48

2.29 ± 0.28

 

Mean ± SE

1.07c ± 0.28

2.41b ± 0.28

3.33a ± 0.28

2.27 ± 0.16

TN

Upper

0.09b ± 0.03

0.13b ± 0.03

0.21a ± 0.03

0.14 ± 0.02

Middle

0.08a ± 0.03

0.17a ± 0.03

0.18a ± 0.03

0.14 ± 0.02

Lower

0.08b ± 0.03

0.18b ± 0.03

0.21a ± 0.03

0.16 ± 0.02

 

Mean ± SE

0.08b ± 0.02

0.17a ± 0.02

0.20a ± 0.02

0.15 ± 0.01

C:N

Upper

11.22b ± 2.02

15.89a ± 2.02

18.71a ± 2.02

15.27 ± 1.17

Middle

14.38a ± 2.02

13.83a ± 2.02

18.57a ± 2.02

15.59 ± 1.17

Lower

13.36a ± 2.02

14.59a ± 2.02

15.04a ± 2.02

14.44 ± 1.17

 

Mean ± SE

12.98b ± 1.17

14.77ab ± 1.17

17.56a ± 1.17

15.11 ± 0.67

Av.P

Upper

45.00a ± 4.73

18.63b ± 4.73

27.80ab ± 4.73

30.47 ± 2.73

Middle

27.83a ± 4.73

14.93a ± 4.73

13.10a ± 4.73

18.62 ± 2.73

Lower

54.17a ± 4.73

20.30b ± 4.73

23.03b ± 4.73

32.5 ± 2.73

 

Mean ± SE

42.33a ± 2.73

17.95b ± 2.73

21.31b ± 2.73

27.2 ± 1.58

  1. The means in the rows followed by the same letter are not significant