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