Effect of Eucalyptus globulus Plantations on Soil Physicochemical Properties in the Upper Blue Nile, Ethiopia

Table 2

Mean (±SE) of selected soil chemical properties in the 0–20 and 20–40 cm soil depths across land uses.

Soil quality indicator		Depth		Land uses
				Grasslands		Croplands		4-years-old		9-years-old
								E. globulus		E. globulus
pH (H2O)		0–20 cm		5.42 (±0.11)^ab		5.29 (±0.21)^ab		5.24 (±0.11)^a		4.76 (±0.09)^b
		20–40 cm		5.28 (±0.11)^ab		5.26 (±0.25)^ab		5.30 (±0.04)^a		4.95 (±0.18)^b
Organic carbon (%)		0–20 cm		2.62 (±0.26)^a		0.09 (±0.02)^b		1.09 (±0.22)^b		1.90 (±0.15)^ab
		20–40 cm		1.49 (±0.13)^a		0.13 (±0.03)^a		1.04 (±0.16)^a		1.50 (±0.13)^a
Total N (%)		0–20 cm		0.28 (±0.03)^a		0.09 (±0.02)^b		0.10 (±0.01)^b		0.17 (±0.02)^b
		20–40 cm		0.12 (±0.00)^a		0.13 (±0.03)^a		0.10 (±0.01)^a		0.14 (±0.01)^a
Soil available P (mg·kg^−1)		0–20 cm		7.27 (±0.44)^a		8.46 (±0.68)^a		8.92 (±0.00)^a		7.49 (±0.72)^a
		20–40 cm		8.36 (±0.98)^a		7.53 (±1.07)^a		8.34 (±0.68)^a		8.91 (±1.37)^a
SOC : TN		0–20 cm		9.29 (±0.25)^a		8.46 (±0.65)^a		10.14 (±0.77)^a		11.11 (±0.68)^a
		20–40 cm		12.30 (±1.15)^a		11.07 (±0.81)^a		10.08 (±0.34)^a		10.67 (±0.40)^a
Overall analysis of variance
		Land use				Soil depth		Land use × soil depth
pH (H2O)								NS
Organic carbon (%)						NS
Total N (%)
Soil available P (mg·kg^−1)		NS				NS		NS
SOC : TN		NS				NS		NS

The mean values followed by the different superscripts across a row in different letters represent that they are significantly different at ; , , and mean significant differences at , , and levels, respectively, and NS means nonsignificant differences.