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Table 4 Soil physicochemical properties and carbon stocks of the study forests

From: Carbon stocks and factors affecting their storage in dry Afromontane forests of Awi Zone, northwestern Ethiopia

Parameter Depth (cm) Forest
Tsahare Kan Apini Dabkuli Bari Kahtasa
Soil pH 0–15 5.96 ± 0.09 5.91 ± 0.11 5.75 ± 0.12 5.04 ± 0.08 5.07 ± 0.06
15–30 6.08 ± 0.06 5.89 ± 0.14 5.79 ± 0.13 5.05 ± 0.08 5.22 ± 0.12
SOC (%) 0–15 5.66 ± 0.28a 6.93 ± 0.64 6.77 ± 0.48a 9.09 ± 0.68 8.64 ± 0.57a
15–30 3.21 ± 0.21b 6.49 ± 0.95 4.94 ± 0.54b 7.22 ± 0.88 6.53 ± 0.58b
TN (%) 0–15 0.46 ± 0.03a 0.72 ± 0.09 0.63 ± 0.07 0.94 ± 0.07 0.83 ± 0.05a
15–30 0.25 ± 0.02b 0.63 ± 0.11 0.53 ± 0.08 0.77 ± 0.09 0.65 ± 0.05b
C:N 0–15 12.51 ± 0.40 10.69 ± 0.60 11.93 ± 0.80 9.83 ± 0.40 10.55 ± 0.54
15–30 12.96 ± 0.47 11.64 ± 0.88 10.59 ± 0.64 9.56 ± 0.30 10.12 ± 0.33
BD (g cm−3) 0–15 0.73 ± 0.03a 0.79 ± 0.03a 0.71 ± 0.03a 0.61 ± 0.03a 0.70 ± 0.02a
15–30 0.82 ± 0.03a 0.93 ± 0.02b 0.91 ± 0.03b 0.76 ± 0.31b 0.80 ± 0.02b
TN stock (Mg ha−1) 0–15 5.05 ± 0.36a 8.74 ± 1.34 6.69 ± 0.87 8.63 ± 0.78 8.69 ± 0.57
15–30 3.09 ± 0.26b 9.03 ± 1.68 7.16 ± 1.08 8.72 ± 1.09 7.75 ± 0.59
SOC stock (Mg ha−1) 0–15 61.59 ± 3.36a 82.58 ± 8.46 71.46 ± 5.89 82.92 ± 7.52 90.32 ± 6.32
15–30 39.05 ± 2.85b 92.49 ± 14.7 66.70 ± 7.04 81.39 ± 9.94 78.03 ± 6.63
  1. The different letter showed significant difference on vertical and horizontal layers, respectively, using Tukey’s pairwise comparisons test at significant level of 5%. SOC soil organic carbon, TN total nitrogen, BD bulk density, C:N carbon to nitrogen ratio. Values are means and standard errors (mean ± SE)