Effects of Soil and Water Conservation Structures on Selected Soil Physicochemical Properties: The Case of Ejersa Lafo District, Central Highlands of Ethiopia
Table 2
Mean values of selected soil chemical properties.
Land use type
Variables
pH
SOM
TN
Av. P
Av. K
EC
OC
Conserved land
6.33 ± 0.36
4.915 ± 0.47
0.228 ± 0.091
6.627 ± 0.77
0.874 ± 0.009
0.0485 ± 0.015
2.789 ± 0.2263
Nonconserved land
4.97 ± 0.45
3.404 ± 0.473
0.154 ± 0.012
4.13 ± 0.3
0.835 ± 0.013
0.0402 ± 0.005
1.974 ± 0.275
Overall mean
5.65 ± 0.84
4.159 ± 0.94
0.191 ± 0.043
5.37 ± 1.47
0.85 ± 0.023
0.045 ± 0.003
2.435 ± 0.5566
LSD (0.05)
0.0205
0.0205
0.003
0.0085
0.0195
0.175
0.014
SEM
0.343
0.384
0.087
0.601
0.0095
0.003
0.227
Slope gradient
Upper (15–30%)
5.25 ± 0.88
3.8 ± 0.86
0.177 ± 0.039
4.798 ± 1.13
0.84 ± 0.025
0.0384 ± 0.0055
2.272 ± 0.579
Middle (8–15%)
5.67 ± 0.86
4.06 ± 0.99
0.192 ± 0.046
5.49 ± 1.61
0.858 ± 0.23
0.0449 ± 0.006
2.356 ± 0.574
Lower (3–8%)
6.05 ± 0.73
4.61 ± 0.97
0.205 ± 0.044
5.84 ± 1.63
0.864 ± 0.21
0.0499 ± 0.006
2.675 ± 0.564
Overall mean
5.66 ± 0.23
4.16 ± 0.92
0.1913 ± 0.04
5.37 ± 1.41
0.855 ± 0.23
0.045 ± 0.007
2.435 ± 0.548
LSD (0.05)
0.431
0.494
0.675
0.611
0.424
0.068
0.595
SEM
0.238
0.266
0.0118
0.407
0.0066
0.00212
0.158
Note: pH = hydrogen ion concentration; SOM = soil organic matter; TN = total nitrogen; EC = electric conductivity; Av. P = available phosphorous; Av. K = available potassium; SOC = soil organic carbon.
