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Table 3 Mean (± standard error) biomass (Mg ha− 1), biomass carbon, SOC and total carbon stocks (Mg C ha− 1) for each of the kebele and results of one-way ANOVA (at α = 0.05)

From: Assessment of carbon stock potential of parkland agroforestry practice: the case of Minjar Shenkora; North Shewa, Ethiopia

Biomass and carbon pool

Kebeles

  

B/giorgis (M.altitude)

B/slasi (M.altitude.)

Agirat (L.altitude)

Korma ager (L.altitude)

GM.

Sig.

AGB (Mg ha− 1)

12.71 (2.88)a,b

19.54 (4.81)a

6.92 (1.35)b

10.56 (1.77)a,b

12.44

*

BGB (Mg ha− 1)

5.07 (1.05)ab

7.50 (1.72)a

2.89 (0.53)b

4.28 (0.68)a,b

4.94

*

AGC (Mg ha− 1)

6.1 (1.38)ab

9.38 (2.31)a

3.32 (0.65)b

5.07 (0.85)a,b

5.97

*

BGC (Mg ha− 1)

2.43 (0.5)ab

3.6 (0.83)a

1.39 (0.25)b

2.05 (0.33)a,b

2.37

*

SOC Mg ha− 1. 0–20 cm

20.85 (1.42)b

23.84 (1.18)b

26.55 (1.64)a,b

33.14 (2.65)a

26.09

***

SOC Mg ha− 1. 21–40 cm

19.49 (1.09)b

21.38 (2.38)b

26.55 (1.71)ab

33.45 (2.22)a

25.22

***

SOC Mg ha− 1. 0–40 cm

40.34 (1.84)b

45.22 (3.36)b

53.10 (3.25)b

66.59 (4.62)a

51.31

***

TC (Mg ha− 1)

48.87 (2.53)b

58.2 (4.56)b

57.81 (3.18)b

73.71 (2.27)a

59.65

***

  1. Similar letter shows no a significant difference and different letters indicate a significant difference between groups at 5% level significant. *p < 0.05, ***p < 0.001. Where; M.altitude weynadega agro-ecology, L.altitude  lowland agro-ecology. TC Total carbon, GM grand mean and Sig. significance