Table 5.
The effect of soil bund on soil physical properties at different slope position.
| Soil physical properties | Slope class | Nada sub-watershed |
Gulufa sub-watershed |
||
|---|---|---|---|---|---|
| Conserved | Non-conserved | Conserved | Non-conserved | ||
| BD (g/cm3) | Lower | 0.94b | 1.09a | 1.00b | 1.31a |
| Middle | 1.04b | 1.16a | 1.09b | 1.36a | |
| Upper | 1.12b | 1.22a | 1.20b | 1.47a | |
| SMC (%) | Lower | 36.25a | 32.58b | 42.99a | 30.73b |
| Middle | 34.20a | 31.32b | 37.11a | 27.08b | |
| Upper | 33.42a | 29.05b | 33.74a | 18.33b | |
| Clay (%) | Lower | 59.33a | 48.67b | 50.00a | 39.60b |
| Middle | 55.33a | 44.67b | 44.13a | 34.00b | |
| Upper | 53.33a | 40.67b | 41.73a | 29.33b | |
| Silt (%) | Lower | 21.00a | 24.00a | 26.67a | 28.40a |
| Middle | 15.33b | 25.33a | 29.53b | 32.40a | |
| Upper | 15.13b | 25.40a | 30.07b | 34.33a | |
| Sand (%) | Lower | 19.67b | 27.33a | 23.33b | 32.00a |
| Middle | 29.33a | 30.00a | 26.33b | 33.60a | |
| Upper | 31.53b | 33.93a | 28.20b | 36.33a | |
| Texture class | Clay | Clay | Clay | Clay loam | |
BD is top soil bulk density; SMC is gravimetric soil moisture content; Conserved is farmland conserved with soil bund; Non-conserved is farmland not conserved with any of soil and water conservation measures. Mean values followed by different letters (a,b) in the superscript along the same rows are for conservation difference within similar slope positions, and letters (a, b) in the subscript along the same column is slope difference is statistically different at P ≤ 0.05.