Parameters |
Zone I |
Zone II |
Zone III |
Zone IV |
Total land
area |
Topological classes |
|
|
|
|
|
Mountain |
44.6 |
69.2 |
36.8 |
35.5 |
46.9 |
Hill |
21.4 |
8.8 |
23.1 |
12.2 |
18.2 |
Pediment |
14.7 |
7.6 |
15.8 |
7.0 |
12.8 |
Interrill area |
7.6 |
9.0 |
7.4 |
11.3 |
8.1 |
Fan |
2.5 |
2.1 |
2.4 |
2.7 |
2.3 |
Lava terrace |
- |
0.2 |
0.5 |
20.1 |
1.5 |
Others |
9.0 |
3.1 |
14.0 |
11.2 |
10.1 |
Sum |
100.0 |
100.0 |
100.0 |
100.0 |
100.0 |
Parent material types |
|
|
|
|
|
Acidic rocks |
50.1 |
46.3 |
48.2 |
56.9 |
48.5 |
Metamorphic rocks |
26.2 |
38.2 |
22.4 |
5.0 |
26.3 |
Sedimentary rocks |
13.5 |
11.5 |
13.8 |
0.7 |
12.3 |
Quaternary deposits |
9.8 |
3.7 |
14.6 |
10.2 |
10.6 |
Volcanic ash |
- |
- |
0.4 |
23.7 |
1.7 |
Others |
0.3 |
0.3 |
0.6 |
3.4 |
0.6 |
Sum |
100.0 |
100.0 |
100.0 |
100.0 |
100.0 |
Soil depth classes (cm) |
|
|
|
|
|
<20 |
19.0 |
20.9 |
17.7 |
26.8 |
19.3 |
20–50 |
21.6 |
27.4 |
20.2 |
25.4 |
22.7 |
50–100 |
40.5 |
42.9 |
38.4 |
24.9 |
39.1 |
>100 |
18.9 |
8.9 |
23.7 |
22.9 |
18.8 |
Sum |
100.0 |
100.0 |
100.0 |
100.0 |
100.0 |
Soil texture types |
|
|
|
|
|
Sandy gravel |
2.2 |
1.4 |
2.5 |
4.4 |
2.3 |
Silt sandy loam |
52.6 |
69.4 |
44.5 |
27.8 |
51.6 |
Clay loam |
41.5 |
27.1 |
47.9 |
63.1 |
42.1 |
Clay |
3.7 |
2.2 |
5.2 |
4.7 |
4.1 |
Sum |
100.0 |
100.0 |
100.0 |
100.0 |
100.0 |