Geography
Location & Boundaries: The
District is roughly a parallelogram in shape and lies between Lattitude 26°8' N & 27°2' N and Longitude 80°3'
E & 81°3' E. It is bounded on the North by District
Hardoi , on the East by District Lucknow, on the South by District
Rae Bareli and on the West by the Ganga which seperates it from
districts of Kanpur & Fatehpur.
Area 4589 Sq. Km
Topology :
The Ganga
and The Sai the chief rivers of the district have played an
important role in fashioning the topology of the district which
may be divided into two main parts - The Lowlands and the Upland.
Lowlands
: These tracts comprising about 23.7 % of the total area of
the district, lie along the Ganga in the west and along the
Sai in the extreme north and east. The lowland of the Ganga
also known as the tarai or khadar , lies between the main channel
of the river, and its old high bank. It varies in width from
a km to about 10 km getting wide wherever the Ganga meets its
tributaries eg. in the north-west and in pargana Pariyar. The
narrowest section of the tract lies in the pargana Unnao near
the railway bridge over the Ganga. The Lowland is liable to
frequent floods and is thinly populated. A considerable area
of the tract is overgrown with grass and babul trees. The characteristic
soil is stiff clay except where sand has been deposited by fluvial
action. The lowland produces usually a precarious Kharif harvest
and good Rabi crops in a succession of dry years but it is disappointing
in a wet cycle. Along the immediate bank of the river, there
is a narrow strip of alluvial land, constantly subject to inundations.
The Ganga lowlands comprise 19% of the total area of the district.
The lowland of Sai is similar though smaller in extent. It contains
mostly a stiff and moist soil liable to get waterlogged in wet
years and produces reh which considerably reduces its fertility.
Upland
: Extending from the old high bank of Ganga to the Sai valley,
the upland comprises about 76% of the area of the district.
The course of the high bank, though irregular, is well defined.
On top of the high bank, there is a belt of high soil, with
a width of 1.5 km to 7 km. In the upland, the surface is gently
undulating, the water table low, and the irrigation facilities
scanty. Another belt of similar light soil is met with along
the banks of the Sai. The soil occasionally rises to bhur and,
in parganas Sikandarpur & Faterpur Chaurasi, there are substantial
sandy bluffs projecting into the Tarai. Further inland, the
tract is mainly of fertile stiff loam broken by large usar wastes
and shallow rice depressions. At places, ridges of sandy soil
cause large depressions in which clay predominates. The deeper
of these depressions form permanent lakes & tanks. The depths
and sizes of these lakes and tanks increases as one proceeds
from north to south. The streams running through the tract are
comparatively unimportant, with the exception of the Basha and
Loni streams. The country on either side of of the former, which
springs in the bhur tract in the north west of pargana Jhalotar-Ajgain
and runs, like a stream, through parganas Gorinda-Parsandan,
Purwa & Mauranwan and then leaves the district for Rae Bareli,
is characterised by frequent outcrops of bhur. It provides a
cheap and easy means of irrigation and excellent crops of rice
are, in many places, grown in its bed.The Loni is shallow at
its source, but during the rains, it flows in a wide bed in
which excellent crops of transplanted paddy are grown.
River Systems & Water
Resources : The
Ganga and the Sai are the main rivers of the district, the former
making its western and southern boundaries and the latter, for
the greater part of its course, forming its northern & eastern
boundaries. Among the other mainstreams of the district are
Kalyani, the Tanai, the Loni and the Morahi (Naurahi), all tributaries
of the Ganga. These rivers generally run dry during the hot
weather, but hold water during the greater part of the year
and are utilized for irrigation.
Ganga : The
only great river of the district is the Ganga which first touches
the district near the village of Purwa Gahir, in pargana Bangarmau
and flows south-eastward, seperating this district from districts
Kanpur and Fatehpur. Generally it flows from north-west to the
south-east, but it makes several sharp bends such as those near
Umriya Bhagwantpur, and Rustampur in tehsil Safipur, Rautapur
in tehsil Unnao and Ratua Khera and Duli Khera in tehsil Purwa.
The Ganga receives the Morahi near Baksar where it flows close
to its old high bank. It leaves the district at a short distance
from Baksar.
The river is not, however,
put to much use either as a waterway or as a source of irrigation.
There are several ferries for pedestrians and pilgrims but none
of them approaches what may be termed a trade route. The river
cannot, as a rule be utilized for irrigation owing to the height
of the bank but certain of its small drainage channels or sotas,
which run island for a considerable distance in some parganas,
are sometimes used to irrigate crops grown in low lying alluvial
lands. Otherwise, cultivated lands lie at great distances and
cannot be irrigated from the river whose water would, in order
to irrigate these lands, have to be passed through the sands
on the sides of the river, and in the process be greatly washed,
if not altogether absorbed. The main channel of the river is
subject to constant variation and the cultivation in its immediate
neighbourhood is, therefore of a shifting kind.
It appears from its old
high bank that the river has a general tendency to shift its
course to the west. In the days of Akbar, the river skirted
the village of Ghatampur but has since then so altered its course
that it now runs about 8 km to the south-west of this village.
Lakes : There
is unusually large number of swamps & lakes of great size
and value, particularly in the southern & eastern parts
of the district. The larger lakes, which hold water all the
year round, are the Kundra Samundar near Jhalotar, the lake
near Nawalganj, the wide expanse of water near Kantha and the
long chain of lakes in pargana Mauranwan. In Tehsil Safipur,
the more important tanks are those at Mawai-Bhari and Kursat
and the Harial Tal near Mustafabad. In Tehsil Hasanganj, besides
the Kundra Samundar at Mawai, there are the Kulli Bani and Jalesar
tanks near Ajgain and the chain of lakes called Basaha, which
it seems, partakes of certain characteristics of a stream also,
travelling a distance of 96 Kms in the district and eventually
leaving it for district Rae Bareli where it is reckoned as a
tributary of the river Sai. In the western part of the Tehsil
are the Katgari lake near Asiwan and the stretches of water
at Amarpur, Sambha, Sheothana, Marenda & Asakhera, but in
its northern and eastern parts, there are only small and very
shallow tanks which dry up when rainfall is deficient. In Tehsil
Unnao there are no important lakes, but a number of very shallow
depressions, which get filled up with water during the rains
and yield excellent crop of rice.
In Tehsil Purwa there are
many lakes, situated in a well defined belt stretching along
the whole length of the tehsil. The main among them are the
lakes at Kantha, Bhadain, Unchagaon, Qila, Akhori, Miri, Zorawarganj
and Sarwan. The Barhna tank near Sagauli, the Mohan and Sukrar
lakes near Mauranwan, and several others, like the Bharda lake,
skirting district Rae Bareli. Besides these, there are the tanks
at Sahrawan, the Bhundi tank at Gulariha, and the Kumbha tank
at Bhagwantnagar. The lakes at Kantha, Sagauli, and Barela contain
water all the year round, while the others generally provide
irrigation for the Rabi crops only, drying up in the years of
drought.These lakes and tanks abound in fish, and singhara (water
chestnut) is very extensively grown in them.
Geology : Geologically
the district forms part of the vast Indo-Gangetic alluvial tract,
of which the origin is attributed to a sag in the earth's crust,
formed, in the upper eocene times, between the northwardly drifting
Gondwanaland and the rising Himalayan belt, and gradually filled
in by sediments so as to constitute a level plane with a very
gentle seaward slope. The alluvium formation of the district,
comprising sand, silt & clay with occassional gravel, is
of the the early quaternary to sub-recent age. The older alluvium
called bhangar, forms slightly elevated terraces usually above
the flood levels. It is rather dark in colour generally rich
in concretions and nodules of impure calcium carbonate, locally
known as kankar. The newer alluvium, called khandar, forming
the lowlands between the Ganga and Bhangar, is light coloured,
poor in calcarious contain and composed of lenticular beds of
sand, gravel and clays. The economic minerals found in the district
are kankar, reh and sand.