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Table 5. Land capability class rating table (Tejwani, 1976)
Class
Texture
Soil Depth
(cm) k
Symbol
Alluvial
Soils
Black
Soils
Red Soils
Deep red
soil of
eastern
ghats &
western
ghats &
Nilgiri
Himalaya
Effect of past
erosion
Susceptibility
to erosion
e.g., distance
from active
gully head
Permea
bility
(mm/hr)
Conduct
ivity
(mmhos/
cm at
25°C)
Climate
1
2
3
4
5
6
7
8
9
10
11
12
13
1.
siel. cl,l, sl,
sil sei
more than
90
(d 5)
O-l(A)
O-l(A)
O-l(A)
O-l(A)
0-1 (A)
Upto & of
top-soil lost;
sheet erosion
(e.)
very far away
Moderate
(20-50)
0-2
Humid climate
with well-
distributed rainfall
throughout the
year
11
siel, cl, sl.
sil, sei
45-90
(d 4)
1-3(B)
1-3(B)
1-3(B)
3-5(C)
1-3(B)
3-5(C)
1-3(B>
Upto & of
top-soil lost;
sheet erosion
(ei)
Minimum
60 m
Moderate
slow (5-20)
Moderate
rapid
(50-125)
2-4
Humid climate
with occasional
dry spells; sub-
humid crop yield
frequently reduced
by drought
III
sc, sic
c, 1s
22.5-45
(d 3)
3-5 (C)
5-10 (D)
3-5 (C)
5-10(D)
5-10(D)
10-15(E)
3-5(0
5-10(D)
Upto & to 3/4
top soil lost;
rill slope
erosion (e2)
Between
6-60 m for
0-3% slope
Slow
(1.25 to 5)
Rapid
(125-250)
4-8
Sub-humid, crop
yield frequently
reduced by
drought, semi-arid
IV
c, s
7.5-22.5
(d 2)
10-15(E)
5-10(D)
10-15(E)
15-25(F)
15-25(F)
25-33(G)
10-15(E)
15-25(F)
Upto & to 3/4
top soil lost;
subsoil lost
small gullies
(e 3 )
Very slow
(1.25)
Very rapid
(250)
8-16
Semi-arid and arid
V
Same characteristics as Class I and except for one or more limitations of wetness or
stoniness or rockiness
Gullied land
(e 4 ) or sand
dunes
Marginal
land (6m)
wide strip
near gully
head
VI
7.5 or
less(d)
15-35(F)
10-15(E)
25-33(G)
33-50(H)
25-33(G)
33-50(H)
-do-
Gully sides
& beds
VII
7.5 or
less(d)
25-33(G)
15-25(F)
33-50(G)
50-100(1)
50-100(1)
Bad lands
Gully sides
and beds
VIII
Rock
>33
>25
> 50
> 100
> 100
