Table 1 OC, TN, AvP, EC, CEC, and pH under Oxytenanthera abyssinica and Dalbergia melanoxylon trees with different radii from trunk of the tree

Oxytenanthera abyssinica

Under canopy

1.73 (0.16)^a

0.26 (0.01)^a

7.21 (0.20)^a

0.07 (0.01)

55.74 (1.35)^a

6.13 (0.10)^a

6.50 (0.47)^a

Near to canopy

1.28 (0.09)^b

0.13 (0.01)^b

6.55 (0.19)^a

0.07 (0.01)

48.02 (1.45)^b

6.30 (0.08)^ab

12.10 (2.10)^b

Far from canopy

1.30 (0.11)^b

0.12 (0.01)^b

6.02 (0.21)^b

0.08 (0.01)

45.02 (2.18)^b

6.56 (0.09)^b

11.44 (0.43)^b

F value

4.179

57.337

9.125

0.852

10.569

5.922

5.806

P value

*

***

***

0.4333

***

**

**

Dalbergia melanoxylon

Under canopy

1.02 (0.06)^a

0.13 (0.005)^a

6.37 (0.28)^a

0.11 (0.01)

39.27 (3.20)

7.29 (0.14)

7.74 (0.5)

Near to canopy

0.70 (0.06)^b

0.09 (0.005)^b

5.78 (0.21)^ab

0.11 (0.01)

30.32 (3.81)

7.16 (0.18)

8.59 (1.0)

Far from canopy

0.65 (0.05)^b

0.07 (0.004)^c

5.32 (0.17)^b

0.14 (0.01)

32.56 (3.68)

7.15 (0.21)

10.02 (1.1)

F value

11.924

51.841

5.525

3.073

1.699

0.193

1.601

P value

***

***

**

0.056

0.194

0.825

0.212