Carbon Stock and Soil Characteristics under Expansive Shrubs in the Dry Afromontane Forest in Northern Ethiopia

Table 2

Mean (±SD; N = 75) biomass carbon stock, SOC, total carbon stock (Mg C/ha), CO₂ sequestration (Mg C/ha of CO₂ seq.), and results of independent t-test (at  = 0.05).

Carbon pool	Vegetation conditions		value
	Invaded	Uninvaded
AGBC	4.73 ± 2.68	17.62 ± 5.98	≤ 0.001
BGBC	1.11 ± 0.26	4.14 ± 3.23	≤ 0.001
TBC	5.84 ± 3.36	21.76 ± 7.13	≤ 0.001
SOC 0–15 cm	47.75 ± 11.32^a	68.02 ± 12.42^a	≤ 0.001
SOC 15–30 cm	42.38 ± 11.21^a	54.81 ± 11.78^b	≤ 0.001
SOC 0–30 cm	90.13 ± 18.67	122.83 ± 19.13	≤ 0.001
TCS	95.97 ± 19.71	144.59 ± 20.36	≤ 0.001
CO2 seq.	352.21 ± 72.34	530.65 ± 74.72	≤ 0.001

AGBC = above-ground biomass carbon stock; BGBC = below-ground biomass carbon stock; TBCS = total biomass carbon stock; TCS = total carbon stock; seq. = sequestration; SD = standard deviation. Different letters in the same column indicate significant difference .