IWMP-2 - Commissionerate of Rural Development Gujarat State ...

Detailed Project Report IWMP-2
soils, have better infiltration and drainage than silty soils, and are easier to till than clay soils. These vary in depth from shallow to deep. The typical soil derived
from the Deccan trap is the regur or black cotton soil. Manly black soil areas have a high degree of fertility.
Black soils are highly argillaceous, fine grained and dark and contain a high proportion of calcium and magnesium carbonates. They are sticky when wet. Due to
contraction on drying, large and deep cracks are formed. They contain abundant iron, lime magnesia and alumina. They are poor in phosphorus, nitrogen and
organic matter. In all regur areas, and in those derived from Ferro-magnesium schist, in particular, there is a layer rich in kankar nodules formed by the
segregation of calcium carbonate. The soils are generally rich in montmorillonitic and beidellitic group of clay minerals.
Soils are fine textured, have high pH (8.5-9) and are rich in lime (5-7%) They have low permeability and high hygroscopic coefficient, pore space, maximum
water holding capacity and true specific gravity. Black soils have a high base status and a high cation exchange capacity of 40 to 60 m.e.per 100 g. The iron
content varies from 10 to 13 % and the Sio2/R2O3 varies from 3 to 3.5, CaO and Mgo contents are high. These soils are classified in the order 'Entisols', '
Inceptions' and ' verticals'. Black soil is rich in chemical properties and very suitable for the growth of cotton, juwar, wheat, linseed, ground nut and gram.
Loam soil is ideal for growing crops because it retains nutrients well and retains water while still allowing the water to flow freely. This soil is found in a
majority of successful farms in regions around the world known for their fertile land. The topography of the area is moderate ranging from 3-15% slop.
Table no. 9: Soil type and topography
Sr.
No.
1
Name of the Agro-climatic
zone covers project area
Arid cum dry zone of North
Saurastra
Source: Technical Survey
Names of the
villages
Geographical Area of
the village (in ha)
Ninama 1802.51
Nana Haraniya 900.89
Kotda 1228.60
Pipaliya 565.14
Major soil types
a) Type b) Area in ha
Black soil 748.24
Stony soil 516.79
Black soil 238.981
Stony soil 371.503
Black soil 481.96
Bhukhrdi soil 521.741
Black soil 92.805
Stony soil 362.41
Topography
1-12 %
2-10 %
3-12 %
2-15 %
Gujarat State Watershed Management Agency
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