Effects of Soil and Water Conservation Measures on Soil Quality Indicators: The Case of Geshy Subcatchment, Gojeb River Catchment, Ethiopia
Table 3
Mean values of dry bulk density (gcm−3) and soil textures in 0.0- to 20.0 cm soil depth in the Geshy subcatchment.
Slope (%)
Terrace position
With SWC
Without SWC
, gcm−3
Texture (%)
, gcm−3
Texture (%)
Sand
Silt
Clay
Class
Sand
Silt
Clay
Class
3–8
Lower
1.35
28.7
24.3
47.0
C
1.43
29.7
32.3
38.3
CL
Middle
1.23
29.3
30.3
40.7
C
1.30
29.7
35.0
35.3
CL
Upper
1.20
29.0
31.7
39.3
CL
1.34
30.0
32.7
37.3
CL
Average
1.26a
29.0a
28.8a
42.3a
C
1.36a
29.8a
33.3a
37.0a
CL
SD
0.15
2.50
4.84
6.73
0.09
0.83
2.69
2.55
8–15
Lower
1.43
29.3
27.7
43.3
C
1.31
28.3
34.3
37.7
CL
Middle
1.34
29.3
28.7
42.3
C
1.35
29.7
34.3
36.3
CL
Upper
1.35
29.3
31.7
39.3
CL
1.42
28.3
32.0
39.7
CL
Average
1.37a
29.3a
29.3a
41.7a
C
1.36a
28.8a
33.6a
37.9a
CL
SD
0.16
1.00
4.12
4.66
0.11
0.83
4.59
4.73
15–30
Lower
1.42
29.0
25.7
45.7
C
1.30
28.3
33.3
37.3
CL
Middle
1.32
30.7
29.3
40.0
C
1.27
29.7
32.7
38.3
CL
Upper
1.39
32.3
34.0
34.7
CL
1.39
28.3
36.3
34.3
CL
Average
1.38a
30.7a
29.7a
40.1a
C
1.32a
28.8a
34.1a
36.7a
CL
SD
0.15
3.61
5.03
8.27
0.07
1.20
3.76
4.36
Total
Lower
1.40a
29.0a
25.9a
45.3a
C
1.35a
29.1a
33.3a
37.8a
CL
Middle
1.30a
29.8a
29.4ab
41.0ab
C
1.31a
29.3a
34.0a
36.7a
CL
Upper
1.31a
30.2a
32.4b
37.8b
CL
1.38a
29.2a
33.7a
37.1a
CL
Average
1.34a
29.7a
29.3a
41.4a
C
1.35a
29.2a
33.7b
37.2b
CL
SD
0.16
2.60
4.51
6.52
0.09
1.34
3.63
3.87
Note: overall means followed by the same letter (s) across columns and rows are not significantly different () with respect to treatments, slope classes, and position within the terraces. , bulk density; SD, standard deviation; C, clay; CL, clay loam.