Research Article
Impact of Soil and Water Conservation Measures and Slope Position on Selected Soil Attributes at a Watershed Scale
Table 2
Effects of slope gradient on selected soil physicochemical properties in the study watershed.
| Slope classes | Parameters | Clay (%) | Silt (%) | Sand (%) | BD (g·cm−3) | MC (%) | PD (g·cm−3) | TP (%) | pH (H2O) | OC (%) | CEC (cmol (+)kg−1) | TN (%) | Ava.P (ppm) | Ava.K (cmol(+)kg−1) |
| Upper (30–60%) | 35.50b | 33.50 | 31.00a | 1.40a | 10.52a | 1.94a | 26.68a | 6.10a | 1.83a | 35.17a | 0.14a | 2.80a | 0.53 | Middle (15–30%) | 37.67b | 35.67 | 26.67b | 1.22b | 16.73b | 2.25b | 44.44b | 6.35b | 1.86a | 43.10b | 0.15a | 5.23b | 0.52 | Lower (10–15%) | 41.67a | 34.50 | 23.83c | 1.14c | 19.81c | 2.54c | 51.85c | 6.65c | 2.53b | 48.90c | 0.18b | 8.01c | 0.45 | LSD (0.05) | 3.22 | Ns | 2.49 | 0.03 | 2.27 | 0.13 | 3.98 | 0.05 | 0.26 | 0.95 | 0.02 | 1.04 | Ns | CV (%) | 9.95 | 10.75 | 10.82 | 12.97 | 17.10 | 16.71 | 11.46 | 8.60 | 14.61 | 12.64 | 12.00 | 22.92 | 19.59 |
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BD = Bulk density, MC = moisture content, PD = particle density, TP = total porosity, CEC = cation exchange capacity, TN = total nitrogen, Ava.P = available phosphorus, Ava.K = available potassium, OC = organic carbon, LSD = least significant difference, and CV = coefficient of variation.
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