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Table 3 Analysis of variance result for carbon concentration of mineral soil along altitudinal gradient

From: Aboveground biomass, growth and yield for some selected introduced tree species, namely Cupressus lusitanica, Eucalyptus saligna, and Pinus patula in Central Highlands of Ethiopia

Variable

Factor

DF

Sum square

Mean Square

F value

Pr > F value

SOCD (t C ha-1)

Species

2

10676

5338

8.223

0.000648 ***

Depth

3

124349

41450

63.852

< 2e-16 ***

Residuals

66

42844

649

  

SOND (t N ha-1)

Species

2

89.6

44.82

4.225

0.0188 *

Depth

3

879.5

293.16

27.630

1.08e-11 ***

Residuals

66

700.3

10.61

  
  1. SOCD soil organic carbon density (t C ha−1), SOCD soil organic nitrogen stock density (t N ha−1)
  2. ***Highly significant at P < 0.01
  3. *Significant at P < 0.05