Assessment of Selected Physicochemical Properties of Soils under Different Land Uses and Topographic Positions at Gola Wachu Subwatershed, Eastern Ethiopia
Table 4
Soil exchangeable bases, cation exchange capacity, and percent base saturation under different land uses in each topographic position in the subwatershed.
Soil properties
Land use types
Topographic positions
Lower
Middle
Upper
LSD(0.05)
Ca (cmol (+)/kg)
Cultivated land
19.54a
19.25ab
18.23b
2.68
Grazing land
21.98a
21.18ab
20.0b
Fallow land
20.59a
20.36ab
19.86b
Mg (cmol (+)/kg)
Cultivated land
9.08a
8.23b
7.85a
1.07
Grazing land
10.14a
9.93b
9.85c
Fallow land
9.72a
9.04b
8.92c
K (cmol (+)/kg)
Cultivated land
0.92a
0.68b
0.56c
0.073
Grazing land
1.17a
1.07b
0.98c
Fallow land
1.02a
0.84b
0.68c
Na (cmol (+)/kg)
Cultivated land
0.84ba
0.71b
0.65c
0.096
Grazing land
0.92a
0.81b
0.75c
Fallow land
0.87a
0.76b
0.72b
CEC (cmol (+)/kg)
Cultivated land
48.66a
47.07b
46.04c
1.37
Grazing land
52.06a
51.15b
50.11c
Fallow land
51.33a
49.84b
49.22b
PBS (%)
Cultivated land
61.41a
60.88a
57.69a
NS
Grazing land
70.72a
66.04a
60.88a
Fallow land
65.11a
63.60a
60.71a
CEC = cation exchange capacity; PBS = percent base saturation; LSD = least significant different; NS = nonsignificant; means within a row and column followed by a different letter in superscripts are significantly different at according to Fisher’s LSD.