Effects of Land Uses on Soil Quality Indicators: The Case of Geshy Subcatchment, Gojeb River Catchment, Ethiopia

Table 5

Soil pH, SOC, TN, C : N ratios, and Av. P in relation to the land use types and depths (mean ± SE).

PSQI	Depth (cm)	Land uses
		Forest land	Cultivation land	Grazing land	Overall
pH-H2O	0–20	6.04 (±0.096)	6.07 (±0.096)	6.00 (±0.096)	6.04 (±0.054)^a
	20–40	5.92 (±0.107)	6.01 (±0.107)	6.03 (±0.107)	5.99 (±0.060)^a
	Overall	5.98 (±0.064)^a	6.04 (±0.027)^a	6.02 (±0.100)^a
SOC (%)	0–20	3.36 (±0.143)	2.88 (±0.143)	3.16 (±0.143)	3.13 (±0.088)^a
	20–40	2.40 (±0.202)	2.21 (±0.202)	2.06 (±0.202)	2.22 (±0.115)^b
	Overall	2.88 (±0.154)^a	2.54 (±0.128)^a	2.605 (±0.202)^a
TN (%)	0–20	0.31 (±0.014)	0.25 (±0.014)	0.29 (±0.014)	0.28 (±0.009)^a
	20–40	0.21 (±0.017)	0.19 (±0.017)	0.18 (±0.017)	0.19 (±0.010)^b
	Overall	0.26 (±0.014)^a	0.22 (±0.012)^b	0.23 (±0.019)^ab
C : N ratio	0–20	10.67 (±0.301)	11.78 (±0.301)	11.00 (±0.301)	11.15 (±0.190)^a
	20–40	11.56 (±0.415)	11.89 (±0.415)	11.67 (±0.415)	11.70 (±0.232)^a
	Overall	11.11 (±0.241)^a	11.83 (±0.326)^a	11.33 (±0.198)^a
Av. P (ppm)	0–20	0.80 (±4.934)	10.95 (±4.934)	8.27 (±4.934)	6.67 (±2.864)^a
	20–40	1.02 (±2.666)	5.13 (±2.666)	4.94 (±2.666)	3.69 (±1.525)^a
	Overall	0.91 (±0.23)^a	8.04 (±2.835)^a	6.61 (±3.844)^a

The overall means within rows and columns followed by different letters are significantly different () with respect to land use and soil depths.