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Chapter IV
GEOGRAPHICAL PERSONALITY OF THE STUDY AREA
4.1: The Study Area in the History
A part of North East India is described as Kamrupa in Indian history. Ancient
Kamrupa had four divisions as Kam-peeth, Ratna-peeth, Swarna-peeth and Soumar-
peeth. The present study area was a part of Soumar-peeth. The area between the
Bhairabi (Bharali) river in the west to the Dikrai river near present Sadiya in the east
was known as Soumar-peeth. (Gohainbaruah, 1937). It included the present
Lakhimpur, Dhemaji, Tinisukia, Dibrugarh, Sibsagar, Jorhat, Golaghat and part of
Sonitpur districts. Until the first quarter of the thirteenth century AD, the Soumar-
peeth was ruled by the Barahi, Matak and Moran rulers (Gohainbaruah, 1937 pp. 56-
57). Sukapha belonged to the Shan or Tai ethnic group of the Irrawaddy valley of
Myanmar. He invaded Soumar-peeth and defeated the Barahi, Matak and Moran
rulers. Myth says that Sukapha was the grandchild of Lord Indra, the king of heaven.
It is, therefore, the word Swargadeo (meaning king) is prefixed to the name of each of
the kings of that dynasty (Gohainbaruah, 1937 p 50). The kingdom of Swargadeo
Sukapha was later named as ‘Asom’ which means unequal. Swargadeo Sukapha ruled
his new kingdom with unprecedented valour and power. Before him, no ruler in
Soumar-peeth could show such valour (Gohainbaruah, 1937 p 57). During the British
rule, the word Asom was spelt as Assam. There are, however, few other propagandas
as well regarding the origin of the word ‘Assam’.
During his reign, Swargadeo Sukapha shifted his capital from place to place
and finally set up at Charaideo. During the subsequent period, the capital of the Ahom
69
kingdom was shifted to Charaideo, Gargaon and Jorhat – all the three capital sites of
the Ahom kingdom lie within the present study area.
Swargadeo Shivasingha was throned in 1636 AD. Under circumstances, he
nominated Ambika, one of his queens, as the ‘Bor-raja (the care taker queen). She
ruled the Ahom kingdom from 1642 to 1663 AD. During her tenure a large tank was
dug as ‘Shivasagar’. The Shiva-dol, which is said to be the tallest Shiva temple in
Asia, was erected at one of the banks of the Shivasagar tank (Barbaruah 1981, pp.
242-246). In course of time, the area around the tank was known as Shivasagar.
During British period the word ‘Shivasagar’ started to be spelt as ‘Sibsagar’. Assam
came under the British rule following the Yandabu Treaty in 1826. A decade later, in
1836, the British rulers constituted two districts as ‘Sibsagar’ and ‘Lakshimpur’
(Allen, 1906). Sibsagar continues to be a district of Assam since then. During that
time these two districts were much larger than their present size.
The three districts forming the present study area were united as a single
district and were known as Sibsagar. The present three districts were its three sub-
divisions. The Sibsagar district of 1971 (which is the base year for the present study)
has been divided into three different districts as Golaghat, Jorhat and Sibsagar. These
divisions were made in the year 1983.
4.2: Location and Extension
The extreme north eastern corner of India has a cluster of seven states
surrounded by foreign countries like Bhutan, China, Myanmar and Bangladesh. This
cluster of seven states is connected to the mainland of India through a narrow strip of
land consists of Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura,
Meghalaya and Assam. Assam has the central location among these seven states.
Assam alone is surrounded by seven other states of India and two countries Bhutan
70
and Bangladesh. Assam has Bhutan and Arunachal Pradesh along its entire northern
boundary. The state of Arunachal Pradesh is also bordering Assam on the east.
Nagaland, Manipur, Mizoram. Tripura and Meghalaya are the states located to the
south of Assam. Bangladesh is also sharing a small portion of the southern boundary
of Assam. Along with West Bengal, Bangladesh again shares the western boundary of
Assam.
The mighty river Brahmaputra flows through the state from east to west
dividing the state into two unequal halves being the north bank and the south bank.
Assam has its major part of the geographical area within the Brahmaputra valley.
Excepting a small gap in the west, the Brahmaputra valley is surrounded from all sides
by hills and mountains. These hills and mountains include the foothills of Himalayas
on the north, the hills and mountains of the Naga-Patkai range on the east as well as
south-east, the Barail range and the table land of Meghalaya on the south. As the
Brahmaputra valley is surrounded by hills and mountains, the rain water rushes to the
valley through numerous rivers and streams coming out of these hills soon after a
downpour. Under the impact of monsoon, which causes rainfall during summer, the
river Brahmaputra and many of its tributaries cause flood during the summer months
from May to October every year.
The study area comprises three districts of Assam on the southern bank of
Brahmaputra (Fig. 4.1). These three districts, form west to east are Golaghat, Jorhat
and Sibsagar. Majuli, which is often called as the world’s largest river island is a sub-
division of the Jorhat district and is located along the northern margins of the study
area. In fact, the study area lies between the hills of Nagaland on the south and the
river Brahmaputra on the north. The districts of Dibrugarh and Karbi Anglong are
bordering the study area on the east and west respectively.
71
Geographically, the study area lies little north of tropic of cancer and to the
south of the eastern Himalayan ranges. The study area is stretching from 25°48′32″
north to 27°16′30″ north parallels. Longitudinally, the area lies between 93°17′15″
east and 95°22′39″ east meridians. The total area covered by the three districts is
8731.77 sq km. It includes 3358.80 sq km under Golaghat district, 2730.47 sq km
under Jorhat district and 2642.50 sq km under Sibsagar district. As such, the study
area covers 11.13 per cent of the total geographical area of Assam. The Brahmaputra
and its tributaries cover 72 percent of the total geographical area of Assam (Bora,
2001, p. 19). Based on this, the present study area covers 15.50 per cent of the
Brahmaputra valley within the state of Assam.
Assam and Nagaland have a common boundary of 347 km between the two
states. Nagaland, basically has a hilly topography while Assam is a state with its major
part in the plains. As many as five districts of Assam, namely North Cachar hills,
Karbi Anglong, Golaghat, Jorhat and Sibsagar are located along this boundary. Of
these five districts, North Cachar Hills and Karbi Anglong have hilly topography and
the remaining Golaghat, Jorhat and Sibsagar districts span over the Brahmaputra
plain. In the present study, only these three districts of the Brahmaputra plain have
been considered. This is the reason behind the selection of these three districts as the
study area. A distinct zone of foothills exists in these three districts along the Assam-
Nagaland boundary. These foothills belong to the Naga-Patkai range. The Assam-
Nagaland boundary is not merely a political boundary separating the two states. In
fact, it is a geographical boundary separating two very important physiographic
divisions of the north eastern part of the country.
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Fig. 4.1: Map of the study area
73
4.3: Geology and Physiography
The study area is a small part of the north-east India. The entire north-east
India is situated along the margin zone of two tectonic plates. This zone has the Indo-
Australian plate on one side and the Europe-Asian plate on the other. The area is
tectonically restless and occasional earthquakes indicate that the earth movement in
the area has not yet stopped (Bhattacharyya, 2005). The Brahmaputra basin represents
a fragile geological base which is seismically very active. This seismic instability
manifests itself in frequent earthquakes sometimes of very high magnitude, which
make a severe impact on the fluvio-sedimentary regime of the river and its tributaries
(Dutta, 2001, p. 84). Several great earthquakes, measuring above 8 in the Richter scale
have already taken place along this plate margin as stated earlier. The great Tsunami
killer earthquake of December, 2004 was also associated with this plate margin, but its
epicenter was far away from the study area.
4.3.1: The Geologic Setting
A complex geologic and physiographic make-up can be observed in the state
of Assam. The state is surrounded by highlands and hills and plateaus on the three
sides. Only the western end of the state is plain where the Brahmaputra valley merges
with the Indo-Gangetic plain. Mainly Archaean, Pre-Cambrian, Tertiary and
Quaternary formations are found to scatter in the state of Assam. Based on these, the
state of Assam can be divided into five geologic units. These are (i) the Archaean
group of rocks, (ii) the Pre-Cambrian rocks, (iii) the lower Tertiary sediments, (iv) the
upper Tertiary sediments and (v) the Quaternary alluvium sediments (Bora, 2001, pp.
19-35).
The Brahmaputra plain is a narrow and elongated foredeep (or rift valley)
between the rigid massifs of Meghalaya and Karbi plateau (an extended part of the
peninsular Gondwanaland) and the fold-mountains of Tertiary origin born out of the
74
Tethyan geosyncline (Taher, 1986, pp. 1-19). These Tertiary hills include the hills of
Arunachal Pradesh, Nagaland, Manipur and Mizoram. The major part of the study
area lies in the plain of Brahmaputra. Geologically, the Brahmaputra is a young river
and its present configuration took shape only during the Pleistocene and Recent times.
The foredeep, believed to remain submerged under sea till the sub-Recent period,
received deposits during all the periods of Tertiary and Quaternary periods. The
Tertiary deposits consist mainly of sandstone, shale, grit, conglomerate and limestone.
The Quaternary deposits include alluvial sediments comprising pebbles, sand, silt and
clay. All these were deposited over the Archaean basement of the trough. Patches of
reddish brown sandy clay and that of unassorted pebbles, cobbles, sand and silt have
also been observed in the valley. These are composed of older alluvium. The
sediments comprising clay sand and silt grouped as newer alluvium overlie the older
ones with a thickness of 200 to 300 metres (Bora, 2001, pp.18-35). The older alluvium
appears in patches.
One of the geological formations of the upper Miocene period is known as the
Tipam series. It represents lower arenaceous facies – the Tipam Sandstone Formation
consisting of fairly coarse to gritty, false bedded, ferruginous sandstone interbedded
with shale, sandy shale, clay and conglomerate. The sandstone is usually bluish grey
to greenish in colour giving a brownish tint on weathering. In Assam valley, the
Tipam Group occupies a 300 km long strip from near Langtang (25°25΄ N : 90°23΄ E)
to Digboi, interrupted by small patches of alluvium. The Tipam Group includes
fragments of silicified and semi-carbonized fossil wood. It also includes several oil-
sand horizone in Upper Assam (Geological Survey of India, 1974). The Geleki oil
field of Sibsagar district, Selenghat and Borholla oil field of Jorhat district and
Khoraghat and Gholapani oil fields of Golaghat district are the oil fields which come
75
under the Tipam Geological Formation. These are located along the Assam-Nagaland
border of the study area.
One of the Oligocene formations is known as the Barail Group. Among other
formations of the Barail Group is the Baragolai formation which comprises hard,
massive and bedded sandstone with interbeds of clay, shale, carbonaceous shale and
numerous thin, impersistant coal seams. The Baragolai Formation includes several oil-
sand horizons in Upper Assam. The group is well exposed in the Dilli- Jaipur and
Makum coalfield areas in Upper Assam (Geological Survey of India, 1974). The
greater part of this formation lies beyond the present study area, but it appears in
patches in the south-eastern part of the study area. The Moran and Rudrasagar oil
fields, which are located within the study area belong to this group of geological
formation.
foothills and the river Brahmaputra. This plain is spreading within the study
area for a length of 212 km in the east-west direction, while its breadth varies from 40
km to 100 km. Its eastern end is narrower than the western end and the total
geographical area of the study area is 8731.77 sq km.
4.3.2: The Physiographic Set-up
Excepting the river island Majuli, the entire study area is located to the south
of the mighty river Brahmaputra which flows along the northern margin and separates
the study area from the Sonitpur, Lakhimpur and Dhemaji districts of the northern
bank. The southern margin of the study area, on the other hand, is formed by an
elongated belt of foothills belonging to the Naga-Patkai range. An extensive plain
exists between the
The Brahmaputra valley has an east-west orientation and it exhibits four
distinct physiographic units such as (i) the northern foothills, (ii) the north and south
bank plains, (iii) the floodplain and char-lands and (iv) the southern foothills (Bora,
76
2001). Excepting the northern foothills as included above, the present study area
distinctly exhibits all the other three physiographic divisions. Majuli has the unique
distinction of being the largest river island in the world. But, unlike the numerous
channel bars and islands formed under the intense braiding process of the river
Brahmaputra, Majuli has its own history of genesis. The southward migration of the
channel of Brahmaputra is identified as the prime cause for its formation as a river
island. In fact, Majuli was an integral part of present Jorhat district of Assam on its
south bank. The southward shifting of Brahmaputra captured the lower course of one
of its tributary Burhi Dihing which flew parallel to the master stream. As such, Majuli
emerged as a river island during the first half of the eighteenth century (Bora, 2001).
River Brahmaputra is characterised by intense braiding, rapid aggradation and drastic
bank line migration. Braiding in Brahmaputra follows the mechanism of channel bar
formation. With regard to bank erosion and channel migration, Brahmaputra is
extremely unstable at some vulnerable locations including Majuli and Kaziranga
(Bora, 2001, p.38).. Many of these channel bars do not exist for long time under
severe erosional activities of the river. For this reason the geographical area of Majuli
is also shrinking every year. Considering the geographical area of Majuli in 1915 and
that in 1995, it has been measured that the river island is losing its geographical area
at the rate of 7.4 sq km every year ( Bora and Das,1998).
A continuous belt of piedmont and foothills is extending all along the southern
margin of the study area (Fig. 4.2). Topographically, this belt represents an undulating
surface with intermittent protrusions of foothills of the Naga-Patkai range into the
geographical territory of Assam. These hills include the hills of Merapani-Disoi
valley, Tiru hill, Chatai, Charaideo and the hills of Sonari (Taher, 2000). This belt of
piedmont and foothills covers as much as 9.17 per cent of the geographical area under
the study. The foothills of Jorhat district are more conspicuous than the other two
77
districts. In Jorhat district, the hills rise upto 450 m above mean sea level. The
piedmont and undulating uplands just at the foot of these hills have many alluvial fans
formed by the colluvial / alluvial deposits at the base of the hills orienting towards the
plain. These colluvial / alluvial fans vary in thickness and present an undulating
topography (NBSS&LUP, 2004). Nearly the entire length of this belt of undulating
topography is covered by forests. Many of the rivers and streams of the study area
come down from these foothills to arrive at the master stream and they have their
source in these foothills.
River Brahmaputra borders the study area on the north. Throughout the whole
of its course through the present study area, the Brahmaputra is bounded on the south
by a belt of flooded land varying from three or four to as much as seven or eight miles
in width. At the western end of the study area, this belt is comparatively wider near
the Dhansiri mouth. This part is covered with high reed jungle, interspersed with
swamps and bils and magnificent stretches of rich fodder grasses (Alen, 1906, pp. 1-
15). The continuity of this floodplain is broken by isolated hillocks of Archaean
origin. The hillocks of Negheriting of Golaghat district belong to this type (Taher,
2000). The belt of floodplain including Majuli has been inundated by the flooding
water of river Brahmaputra since long back (Fig. 4.2). But recurrent flood in
Brahmaputra started after the great earthquake of August, 1950. In order to protect the
areas from inundation a large number of earthen embankments were raised at different
places along the bank of Brahmaputra and many of its tributaries. These
embankments, though man-made have played distinctive role in aspects like
physiographic setting of the areas located close to the river bank, agricultural
practices, human settlement and occupation and the like. Including the Majuli sub-
division, the flood plains of Brahmaputra and its tributaries of the study area cover as
much as 22.58 per cent of the geographical area under the study. The foothills belt
covers 13.30 per cent of the study area.
78
Fig. 4.2: Physiography of the study area
79
In between the river Brahmaputra and the foothills there exists an extensive
plain composed of new and old alluvium. This plain is the largest physiographic unit
of the study area and it covers 64.12 per cent of the geographical area of the study
area. As it exists between the foothills and the river Brahmaputra, a gentle slope exists
from south to north and a large number of streams and rivers like Dhansiri, Bhogdoi,
Janji, Dikhow and Disang come down from the foothills following the slope. In fact,
this plain is formed under the erosional and gradational activities of the rivers and
streams. At places some of these rivers cause occasional flood along their banks.
These rivers have been aggraded by the sediments carried by them from the foothills,
where depletion of forest is continuing due to anthropogenic activities. Siltation in the
river bed and consequent rising of the beds necessitate construction of embankments
along both the banks of the major rivers of the study area.
4.3.3: Drainage
With Brahmaputra and its numerous large and small tributaries Assam is a
truly a land of rivers. The hills and mountains, which surround the Brahmaputra valley
from nearly all sides, give it a unique geographical location enabling it to receive
copious rainfall under the south-west monsoon during the summer months. The
Brahmaputra originates from a glacier called Chema Yangdung of the Himalayan
region (Bhattacharyya, 2005 p. 26). But, most of the water it carries through the state
of Assam comes from rain water. Few of the north bank tributaries of Brahmaputra
are snow-fed and they come from the Himalayan region. The other tributaries have
their source in the non-glaciated hills and mountains which surround the valley.
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Fig. 8.3: Drainage of the study area
81
The Brahmaputra valley is an elongated trough with an east to west
orientation. The master stream, passing through the middle of the valley along its
entire length, flows to the Bay of Bengal. The channel of Brahmaputra is highly
braided throughout the state and it divides the valley into the north and south bank,
both of which are extensive floodplains criss-crossed by numerous tributaries and
their sub-tributaries.
The Brahmaputra forms a complex river system characterized by the most
dynamic and unique water and sediment transport pattern. It is the fourth largest river
in the world in terms of average water discharge at the mouth with a flow of 19830
m3s
-1 or cubic meter per second. Again, it is the second river only to the Yellow river
of China in amount of sediment transported per unit of drainage area (Goswami, 1985,
1988).
As the study area is bordered by the hills of Nagaland to the south, several
large and small rivers and streams come down from these hills. Many of the small
ones have their source in the foothills, while few of them including Dhansiri and
Dikhow have their source beyond the foothills and they flow across the mountainous
topography of the state of Nagaland.
Dhansiri, one of the major south bank tributaries of Brahmaputra comes across
the hills of Nagaland following a fault line. The upper course of the river passes
through a thick forest cover in the hills of Nagaland and several reserved forests of
Assam. In its course through the plains the river is extremely meandering in nature
and has formed a large number of cut-off lakes on both sides of its channel (ARSAC
Report, 1990). Dhansiri is perhaps one of the most meandering rivers of the world. It
has a channel length of 352 km from source to mouth. Inside the geographical
territory of Assam the river has several tributaries of its own. The Doyang is the
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largest tributary of Dhansiri. In fact, Doyang is nearly two times larger than Dhansiri
and in that context Dhansiri should be treated to be the tributary of Doyang (Sharma,
2008). The other tributaries of Dhansiri are Diphu, Chunga-jan, Deopani, Nambar,
Doigrung and Kaliani. Among these Deopani, Nambar, Doigrung and Kaliani have
their source in the hills of Karbi Anglong and the others have their source in the hills
of Nagaland. Each of these rivers has their own sub-tributaries and all these have
together formed a complex drainage network covering 12584 sq km area of the basin
of river Dhansiri (Sharma, 2008). Before meeting the master stream, Dhansiri meets
Gelabil at a place called Kuruabahi Rangagora of Golaghat district. In fact, Gelabil is
an abandoned channel of Brahmaputra (Gazetteer, 1906, p. 8) which now carries the
joint discharge of Bhogdoi and Kakadonga to Dhansiri. The river network of the study
area is shown in Fig. 4.3.
Kakadonga has its source in the foothills of Assam-Nagaland border and its
channel through the plains separates the Jorhat district from the Golaghat district.
Earlier, Kakadonga was a direct tributary of Brahmaputra. Under circumstances, it lost
its direct link with the master stream and met Bhogdoi. The lower parts of Kakadonga
and Bhogdoi flow together with Gelabil, an abandoned channel of Brahmaputra which
finally ends at Dhansiri. Some of the tributaries of Kakadonga in the plains of Assam
are Chel-cheli, Sukan-jan, Nagini-jan, Negheri-jan and Ghiladhari. From the foothills
to Borholla the river Kakadonga has no tributary on its left bank for a length of 18 km
(Sharma, 2008). From source to mouth the river is 100 km long and it meanders
through the plains. Its basin covers an area of 1100 sq km.
Bhogdoi flows across the Jorhat district from south to north. A hilly
segment of the channel of Bhogdoi forms the inter-state boundary between Assam and
Nagaland. The river has its source in the foothills of the Assam-Nagaland border and
83
it meets the plain of Assam at a place called Nagajanka. In fact, Nagajanka is a
tributary of Bhogdoi. The other tributaries of Bhogdoi are Kaliapani-jan, Cheni-jan (or
Ranga-jan), Tocklai-jan, Tarajan and Raroya-jan. As per historical documents
Bhogdoi was known as Disoi and was a tributary of Brahmaputra. During the last two
centuries Disoi (or Bhogdoi) has undergone tremendous changes of its course due to
physical and anthropogenic factors. A case study on the Bhogdoi river basin has been
taken up in a succeeding chapter for detailed discussion.
River Janji has its source in the Mokokchung district of Nagaland. From
source to mouth the length of the river is 107 km and its basin covers an area of 1359
sq km. Janji enters the plains of Assam at a place called Tuli and separates Jorhat
district from Sibsagar district. In its course through the plains of Assam the river
meets few large and small streams which include Tiru-jan, Chumurun and Akhoi-
dicha. As per maps prepared during 1917 the streams like Teok, Jag-duar and few
others were also tributaries of Janji, but in the present scenario they have changed
their course (Sharma, 2008). At present the river Janji has its lower course through a
number of wetlands in the active floodplain of Brahmaputra and finally ends in the
master stream near the place called Janjimukh. In between Bhogdoi and Janji, several
small streams and sub-streams are flowing from south to north. Few of these come
down from the foothills, while the others originate from the piedmont area or areas
very close to it. These streams and sub-streams include Teok, Mudoi-jan, Jag-duar jan,
Kapah-toli jan, Diha-jan and Meleng.
Dikhow, a major south bank tributary of Brahmaputra, flows through the
central part of the Sibsagar district. The river has its source in the Zunheboto district
of Nagaland. The river has a length of 200 km from its source to mouth at a place
called Dikhowmukh. Including both plains and hills its basin covers an area of 4372
84
sq km. The river enters the plain of Assam at Naginimara. While meandering through
the plains, the river leaves more than fifteen abandoned channels at different places.
Many of these are ox-bow lakes. The longest abandoned channel of Dikhow has a
length of 20 km and it is extending from Naginimara to Namdang river through the
Hatipati Tea Estate. This channel is known as Mori-Dikhow (Sharma, 2008). Entering
into the plains Dikhow meets river Santak. The Dorika was a tributary of Dikhow, but
presently it meets Brahmaputra independently. At the foot of the hills the course of
Dorika is known as Namsai. Dorika also has few abandoned channels at places. River
Namdang also has its source in the foothills. Like Dorika, it was also a tributary of
Dikhow. But its water is now diverted to flow to Mitong river near Gaurisagar.
Disang, with its source in the hills of Arunachal Pradesh is a major tributary of
Brahmaputra. A part of its upper course acts as the inter district boundary between
Sibsagar and Dibrugarh districts. Again, one of the tributaries of Disang called the
Loka-jan forms the inter-state boundary between Assam and Arunachal Pradesh.
Disang enters into the plains of Assam at Dillighat. From this point the river is known
as Disang. Small rivers like Taokak, Safrai, Timon and few others which roll down
from the foothills meet river Disang in the plains of Assam. Two other rivers Diroi
and Dimow also meet Disang in its downstream reach. All these tributaries of Disang
and their sub-tributaries together form a very complex drainage network covering an
area of 3950 sq km. Disang flows a distance of 230 km from the source to its mouth at
the Brahmaputra near Disangmukh.
The lower few kilometers of the channel of Burhi-Dihing flows along the
north-eastern margin of Sibsagar district. Burhi-Dihing is the second largest south
bank tributary of Brahmaputra
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4.3.4: Soils
As the major part of the study area is in the floodplain, the soils are mostly
alluvial. The northern areas, which are nearer to the river Brahmaputra have new
alluvium, while the southern areas or areas near the foothills have old alluvium. The
areas with older alluvium are the best sites for the cultivation of tea. Accordingly, the
areas with older alluvium are dotted with a large number of tea gardens. The entire
area is under humid sub-tropical climate and it receives well distributed rainfall from
May to October. The process of leaching of soils in the undulating piedmont and hilly
areas and stagnation and flooding in the areas with gentle slope are very prominent.
As per taxonomical classification considering the aspects like soil depth, soil drainage,
soil texture, areas of occurrence, slope condition, nature of the exposed surface,
vulnerability to erosion and flooding - a taxonomical classification of the soils of
Assam has been suggested by the National Bureau of Soil Survey and Land Use
Planning (NBSS&LUP). As per this classification the soils of Assam belong to 4
orders, 9 sub-orders, 15 great groups, 26 sub-groups and 83 family associations. In the
context of Assam it is observed that the Inceptisols are the dominant soils followed by
Entisols, Aflisols and Utisols and these occupy respectively 41.4 %, 33.6 %, 11.3 %
and 5.6 % of the total geographical area of the state (NBSS&LUP, 1993). The
characteristics of the various soils of the study area with their textural classifications
are shown in table 4.1 below.
Table 4.1: Taxonomical classification of the soil types and their characteristics
Soil
Mapping
Unit
Descriptions Taxonomy
32 Moderately deep, moderately well drained, fine silty
soils occurring on level to nearly level active flood
plain encompassing ‘char’ and ‘chapori’ having
Fine-silty
Typic Udifluvents
86
loamy surface with very severe flooding; associated
with
Deep, well drained sandy soils occurring on char,
chapori and river islands of active floodplain with
severe flooding
Typic
Psammaquents
34 Very deep, well drained, coarse loamy soils occurring
on very gently sloping floodplain having loamy
surface with moderate erosion and moderate
flooding; associated with
Coarse loamy
Aeric Fluvaquents
Very deep, moderately well drained fine loamy soils
occurring on level to nearly level floodplain with
slight erosion and moderate flooding
Fine loamy
Typic Haplaquepts
35 Deep, well drained, coarse silty soils occurring on
river islands of active floodplain having loamy
surface with very severe flooding; associated with
Coarse silty
Mollic
Fluvaquents
Moderately shallow, well drained, coarse loamy soils
with severe flooding
Coarse loamy
Aquic Udifluvents
37 Deep, well drained fine soils occurring on moderately
sloping side slopes of hills having loamy surface with
erosion: associated with
Fine
Typic
Kanhapludalfs
Deep, well drained loamy soils occurring on
moderately sloping hills slopes having with moderate
erosion
Fine loamy
Umbric
Dystrochrepts
38 Deep, excessively drained, fine loamy soils occurring
on gently sloping side slopes of hills having loamy
surface with moderate erosion: associated with
Fine loamy
Typic Paleudalfs
Deep, moderately well drained, fine loamy soils
occurring on very gently sloping piedmont plain with
slight erosion
Fine loamy
Typic
Dystrochrepts
39 Deep, excessively drained, fine loamy soils occurring
on moderately sloping side slopes of hills having
loamy surface with moderate erosion; associated with
Fine loamy
Umbric
Dystrochrepts
Deep, excessively drained fine loamy soils occurring
on steep sloping hills with moderate erosion and
slight stoniness
Fine-loamy
Typic Udorthents
40 Very deep, well drained, fine loamy soils occurring
on gently sloping to undulating uplands having loamy
surface with moderate erosion; associated with
Fine loamy
Typic
Dystrochrepts
Very deep, well drained, clayey soils occurring on
undulating plain with slight erosion
Clayey
Typic Hapludults
41 Very deep, well drained fine loamy soils occurring on Fine loamy
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undulating upland having loamy surface with slight
erosion; associated with
Umbric
Dystrochrepts
Very deep well drained clayey soils occurring on
undulating puland with moderate erosion
Clayey
Typic Hapludults
42 Very deep, well drained, coarse loamy soils occurring
on undulating upland having sandy surface with
moderate erosion; associated with
Coarse-loamy
Typic
Dystrochrepts
Very deep, moderately well drained, fine loamy soils
occurring on gently sloping plain with slight erosion
Fine-loamy
Typic
Dystrochrepts
43 Very deep, poorly drained, fine loamy soils occurring
on gently sloping subdued plain having clayey
surface with slight erosion; associated with
Fine-loamy
Aeric Haplaquepts
Very deep, poorly drained, coarse loamy soils
occurring on gently sloping plain with slight flooding
Coarse-loamy
Aeric Udifluvents
44 Very deep, well drained fine loamy soils occurring on
gently sloping plain having loamy surface and
moderate erosion; associated with
Fine-loamy
Typic
Dystrochrepts
Very deep, poorly drained fine soils occurring on
gently sloping subdued plain with slight erosion
Fine
Typic Haplaquepts
45 Very deep poorly drained, fine silty soils occurring
on nearly level flood plain having loamy surface with
moderate flooding; associated with
Fine silty
Aeric Haplaquepts
Deep, poorly drained, coarse loamy soils occurring
on gently sloping plain with slight erosion hazard
Coarse loamy
Aeric Haplaquepts
46 Very deep, well drained, fine loamy soils occurring
on gently sloping plain having loamy surface with
slight erosion; associated with
Fine-loamy
Typic
Dystrochrepts
Very deep, poorly drained fine soils occurring on
nearly level plain with slight erosion
Fine silty
Typic Haplaquepts
47 Very deep, poorly drained, fine loamy soils occurring
on very gently sloping plain having loamy surface
with slight erosion; associated with
Fine loamy
Aeric Haplaquepts
Very deep, moderately well drained, coarse loamy
soils occurring on gently sloping plain with moderate
erosion
Coarse-loamy
Typic
Dystrochrepts
51 Very deep, imperfectly drained, fine soils occurring
on gently sloping plain having clayey surface with
slight erosion and slight flooding; associated with
Fine
Aquic Dystric
Eutrochrepts
Deep, poorly drained, fine soils occurring on very Fine
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gently sloping plain with slight erosion Fluvaquentic
Dystrochrepts
54 Deep, well drained, coarse silty soils occurring on
active flood plain having loamy surface with slight
erosion and severe flooding; associated with
Coarse silty
Typic Udifluvents
Moderately deep, imperfectly drained coarse loamy
soils with severe erosion and severe flooding
Coarse loamy
Typic Fluvaquents
56 Deep, well drained sandy soils occurring level to
nearly level active flood plain having loamy surface;
associated with
Sandy
Typic Udifluvents
Very deep, well drained coarse loamy soils with
severe erosion and severe flooding
Coarse loamy
Aquic Udifluvents
59 Very deep, imperfectly drained, coarse silty soils
occurring on level to nearly level active flood plain
having loamy surface with very slight erosion and
severe flooding; associated with
Coarse silty
Aquic Udifluvents
Deep, poorly drained fine loamy soils with slight
erosion and severe flooding
Fine loamy
Typic Haplaquents
61 Moderately deep, moderately well drained coarse
loamy soils occurring on level to nearly level active
flood plain and on stable river islands having sandy
surface with ground water table below one metre of
the surface and very severe flooding; associated with
Coarse loamy
Mollic
Fluvaquents
Deep, imperfectly drained coarse silty soils occurring on
nearly level active flood plain with moderate erosion and
very severs flooding
Coarse silty
Aeric Fluvaquents
Source: NBSS&LUP, Jorhat
4.3.5: Climate
Assam shows distinctive climatological attributes which can be compared to
no area within the Indian sub-continent. These distinctions come from the unique
geographical location and the physiographic set up of the region (Borthakur, 1986).
Humid Sub-tropical climate prevails all over the Brahmaputra valley. As the study
area is a part of the valley, it also enjoys this type. The geographical setting of the
Brahmaputra valley is very particular with the Himalayan barrier along the entire
northern margin and the Naga-Patkai and Meghalaya and Karbi plateau along the
southern margin. The Himalayan barrier protects the valley from the chilly cold winds
89
of the Tibetan region in winter. It also obstructs the warm moist winds or the south-
west monsoon to cause rainfall in the valley. The clouds brought by south-west
monsoon that pass over the southern hills and plateaus bring about rainfall in the
Brahmaputra valley.
Before the onset of monsoon, the pre monsoon period starts from March to
May. The atmospheric temperature starts to rise. The development of a depression
over the Bay of Bengal makes the atmosphere unstable. Occasional thundershowers
occur under severe atmospheric instability. The nor’westers, locally known as
Bardoichila visits the area during this pre monsoon period.
After the pre monsoon period, the south-west monsoon begins. The monsoon
is very significant as the study area has an agricultural economy and wet paddy
cultivation is extensively practised throughout the area. In absence of adequate
irrigation facilities the farmers have no way out but to rely upon the monsoon rainfall.
The area is also noted for tea cultivation and to a large extent the production of tea
depends upon the rainfall received during this period.
The onset of monsoon depends upon the appearance as well as the location of
a low pressure trough over northern India. Usually it occurs in the last week of May or
early June. As soon as the trough arrives at the Himalayas, monsoon breaks.
Excessively high rainfall, high temperature and high atmospheric humidity are the
distinctions of this season. In a study conducted by the Jorhat Regional Centre of
National Bureau of Soil Survey & Land Use Planning, 87 per cent of the annual
rainfall is received in a period from April to September. Both rainfall and atmospheric
temperature start to fall from October as a consequence of retreat of monsoon. The
retreat of monsoon is indicated by foggy mornings. Following the withdrawal of
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monsoon, light unsteady winds are experienced which are usually northeasterly
(Borthakur, 1986).
The study area, like the rest of the upper Brahmaputra valley enjoys a cold
winter and cool and pleasant spring. In October the rain begins to stop and the nights
grow cool, but the real cold weather does not set in till the next month (Alen, 1906, pp
11-12). The winter season continues till February. January is the coldest month.
Winter is generally dry, but sometimes very little rainfall occurs under the impact of
an atmospheric phenomenon called the western disturbance.
The south-western part of Golaghat district, which is located at the foot of the
Karbi plateau comes under the lee-ward side to the south-west monsoon, and thus is a
rain-shadow area (Bora, 2001). As the western part receives comparatively less
rainfall, there is an increase in the amount of rainfall from west to east in the study
area.
Data received from the climatological observatory of Tocklai Experimental
Station, Tea Research Association, Jorhat for a period of 37 years from 1969 to 2005
reveals that the average annual rainfall is 1983.8 mm. The annual rainfall is studied
with respect to time and it shows a declining trend. The average number of annual rain
occurring days is 165. The number of annual rain occurring days is also showing a
declining trend over time. The Tocklai Experimental station is located in the Jorhat
city, which is centrally located in the study area. It has a well equipped as well as
modern meteorological observatory keeping detailed meteorological records of the
area for nearly a century (since 1918). Accordingly, the meteorological data collected
from it can be used to understand the general atmospheric conditions of the study area
covering an area of 8731.77 sq km. Analysis of these meteorological data has been
made in chapter VII.
91
4.3.6: Natural Vegetation
The physiographic set up coupled with the climatic characteristics of the study
area presents a very suitable environment to support a wide variety of flora and fauna.
A wide range of plant species starting with evergreen trees to tall grasses are
occupying a considerable portion of the study area. The area has as many as sixteen
large and small reserved forests, one national park and three wild life sanctuaries. All
these together cover 1774.77 sq. km which account for 20.33 percent of the area under
study. The tropical rain forest on the low undulating tract of the Golaghat district of
Assam bordering Nagaland has, however, been depleted (Choudhury, 2001). It has
been observed that the entire piedmont tract at the foot of the Naga-Patkai range is
highly rich in forest resources. These include a large number of valuable timber
species. The Golaghat and the Jorhat districts have tropical evergreen or semi
evergreen type of forests. As the winter is dry and the area receives rainfall during
summer, some of the plant species suffer from scarcity of water and shed their leaves
in winter. These types of deciduous trees are spread all over the area under study. The
areas receiving abundant rainfall usually the foothills tract the evergreen type of trees
grow and unlike the deciduous type they do not shed leaves in winter. Some of the
valuable tree species of the area are Holong (Dipterocarpus mannii), Mekai (Shorea
assamica), Hollock (Terminalia myriocarpa), Sam (artocarpus chaplasa), Nahor
(Mesua ferrea), Teak (Tectona grandis), Shilikha (Terminalia citrana), Ajhar
(Lagerstroemia reginae), Uriam (Bischoffia javanica), Titasapa (Michelia champaca),
Poma (Cedrela toona), Gandhsoroi (Cinnamomum cecicodaphne), Agar (Aquilaria
malaccesis), Simul (Bonbax malabaricun), Amari (Amoora spectabilis), Paroli
(Stereospermum chelonoides), Khakan (Duabanga soneratioides), Koroi (Albizzia
procera)and many more (Gazetteer, 1906).
92
The plants like Nuni or Mulberry (Morus australis), Mejankari (Litsea
cubeba), Suwalu (Litsea monopetala), Som (Persea bombycina), Kecheru
(Heteropanax fragrans) and Era or Castor (Ricinus communis), the leaves of which
are consumed by the pat (silk), muga and endi worms grow wild all through the area.
Several species of tall grass, few of which grow beyond two meter high can be
seen to grow in abundance on the bank of Brahmaputra. Kaziranga, a national park of
the state, noted as the abode of the single horned Indian rhinos, is basically grassland
with a large variety of grasses including Erianthus ravennae, Eleusine indica,
Hygroryza aristata, Hymenachne acutigluma, Leersia hexandra, Phragmites karka,
Saccharum spontaneum, Thysanolaena agrostis, Cynodon dactylon, and the like
(Bora, 2003). In fact, bamboo is also a grass variety. As many as 21 different species
of bamboo are found in Assam. The two most common species, the ‘Bhaloka Banh’
(Bambusa balcooa) and the ‘Jati Banh’ (Bombusa tulda) are found all over the study
area and almost all the rural families possess bamboo plants in their homesteads. The
other varieties of bamboo grow wild in the foothills of the area. These hills and forests
are also noted for several varieties of cane.
The study area is endowed with a wide variety of banana and citrus fruits.
Apart from their nutritional value, each of these has its own size, shape, taste and
fragrance. A large number of medicinal plants including trees, shrubs, herbs, and
creepers grow wild all over the area, the body parts or extracts of which have very
high medicinal as well as commercial values in the market. Many of these pants are
edible and are consumed as vegetables.
4.4: Land Use
Land use is associated with putting up of parcel of land into its productive
purposes. It is a dynamic concept because, the characteristics of heterogeneity and
93
fertility differentials or the possibility of the use for production of alternative outputs
of a plot of land make people to choose their land to be put under uses in such a way
that they could maximise the output (Das, 1976). In fact, the land use in an area is the
cumulative outcome of the historical events, the interaction of the economic forces
with the natural environment, and the value of the society (Singh and Dhillon, 1989, p.
326).
The land use / land cover maps and reports of Assam prepared by the Assam
Remote Sensing Application Centre (ARSAC), Guwahati identify six major land
cover categories as shown in the table 4.2.
Table 4.2: Land Cover Categories in the Study Area (1986-87)
Categories
Golaghat
(Ha)
Jorhat
(Ha)
Sibsagar
(Ha)
Total area
(Ha)
% to total
area
Built-up area 375.28 380.09 937.50 1692.87 0.19
Agricultural area 229911.70 191402.00 216786.75 638100.45 73.08
Forest land 29021.89 27888.04 29093.75 86003.68 9.85
Wasteland 5253.94 2052.52 13594.00 20900.46 2.39
Water bodies 45610.14 47062.50 2275.50 94948.14 10.87
Others 25706.88 4262.00 1562.50 31531.38 3.61
Total 335879.83 273047.15 264250.00 873176.98 100.00
Source: ARSAC Report, 1990
Only the first two categories of land are under direct human control and
they are more susceptible for land use. In the ARSAC report, he built up area refers to
the area under urban land use only. Due to scale factor other medium, small and minor
settlements could not be delineated in the ARSAC study. However, five urban centres
94
namely, Golaghat, Jorhat, Mariani, Sibsagar and Nazira could be mapped for the same
factor. They occupy 1692.87 hectare of land which constitutes 0.19 per cent of the
study area (table 4.2). The agricultural land includes areas under different crops (rabi
and kharif), plantation crops and the areas under rural settlements. Plantation crops
occupy 238710.30 hectare of land and constitutes 27.34 per cent of the total
geographical area under study. These plantations consist mainly of tea gardens, but to
a limited extent they include the areas under arecanut and bamboo. The kharif crops
are cultivated in 346524.17 hectares of land covering all the three districts of the study
area and it constitutes 39.69 per cent of the total geographical area. Similarly, the rabi
crops are cultivated in 135368.67 hectares of land constituting 15.50 per cent of the
total area. As much as 10.08 per cent of the cultivated area is under double cropping.
The net sown area forms 45.10 per cent of the total geographical area.
Table 4.3: Land Use within the Notified Forest Areas (1986-87)
Category Golaghat
(Ha)
Jorhat
(Ha)
Sibsagar
(Ha)
Total area
(Ha)
% to
total
area
Evergreen/semi
evergreen forest
15199.72 21563.19 13961.25 50724.16 28.58
Deciduous forest 0 0 1062.50 1062.50 0.06
Degraded forest 12822.17 2251.39 9537.50 24611.06 13.87
Cropland 62859.92 0 1875.00 64734.92 36.48
Agricultural
Plantation 4003.2 0 0 4003.2 2.26
Grass land 22079.15 0 0 22079.15 12.44
Swamp 625.46 0 0 625.46 0.35
Waterbodies 7625.56 0 0 7625.56 4.30
Shifting cultivation 0 2010.92 0 2010.92 1.13
Total 125215.18 25825.5 26436.25 177476.93 100.00
Source: ARSAC Report, 1990
95
The area under study has as many as sixteen large and small reserved forests,
one national park and three wild life sanctuaries. These are the ‘Notified Forest Areas’
and they are occupying 1774.77 sq. km of area which forms 20.33 percent of the total
area. These include tree forest as well as grass lands (of Kaziranga national park). All
the forest areas have now been encroached. Few of the reserved forests of the area
have totally been depleted. During 1986-87, the percentage of existing forest cover in
the study area was only 9.85 per cent which was smaller than the combined area under
Brahmaputra and other water bodies of the study area. The combined area of all the
water bodies including Brahmaputra was 10.87 per cent during that point of time.
According to the report, during that period 39.87 per cent of the Notified Forest Area
was under agricultural land use including 36.48 per cent, 2.26 per cent and 1.13 per
cent under different crops, plantation crops and shifting cultivation respectively. These
are shown in table 4.3.
Source: Statistical Handbook of Assam, 2008
Fig. 4.4: Land use of the study area (2003-04)
The present land use shows variation mainly in four aspects. The first is the
expansion of the urban areas. For lack of relevant data, the area under urban land use
could not be measured out. The increase in the urban population between 1991 and
2001 census years and consequent change of the fringe areas into an urban look
96
necessarily increases the area under urban land use. The second reason is the
conversion of the land under miscellaneous crops and paddy fields into tea gardens.
This leads to a slow and steady increase in the land under plantation crops. The
reserved forests of the foothills are dotted with many small tea gardens all along the
Assam-Nagaland border.
The third is the clearing and felling of forests in the foothills and the piedmont
areas for the purpose of settlement and cultivation (including the practice of shifting
cultivation). These are happening within the Notified Forest Areas. Consequently, the
area under degraded forest and cropland (including plantation) is increasing with time.
These will be dealt in a next chapter in details.
Table 4.4: Pattern of land use in the study area (2003-04)
(All values are in ha.)
District A B C D E F G H
Golaghat 22655 6555 117046 159505 39308 9001 36245 153291
Jorhat 20456 13406 119107 28202 82869 21069 34249 153356
Sibsagar 29719 8041 136622 34343 41118 10447 17439 154061
Total area 72830 28002 372775 222050 163295 40517 87933 460708
% to total
geographical area 8.10 3.11 41.44 24.69 18.15 4.50 --- ---
A - Other uncultivated land excluding fallow E - Area put to non agricultural uses
B - Fallow land F - Barren and uncultivated land
C - Net Sown Area G - Area sown more than once
D – Forest H - Gross cropped area
Source: Statistical Handbook of Assam, 2008
The present land use pattern is analysed based on the data recorded in the
Statistical Hand Book of Assam for the year 2008. It shows the land use in six
97
independent categories (table 4.4). The net sown area occupies the largest share with
41.44 per cent of the total geographical area. It is followed by area under forest with
24.69 per cent of the total area. The area put to non agricultures uses occupies 18.15
per cent of the total area. Other uncultivated land, barren land and fallow land cover
8.10, 4.50 and 3.11 per cent respectively. Of the net sown area, as stated above 23.59
per cent is cultivated more than once. The six columns of the table 4.4 (i.e. from A to
F) include the total geographical area under study. The sum totals of these six
columns are represented in figure 4.4. It gives the land use under these six categories.
This, however, shows district wise variation in this category. As per the calculations
made, the districts of Golaghat, Jorhat and Sibsagar show respectively 30.96, 28.75
and 15.77 per cent of their net sown area under area sown more than once. This
analysis indicates a distinct increase of the area sown more than once from west to
east in the study area.
4.5: Population and Settlement
Sibsagar, which encompassed the entire study area in the past has been a
centre of Assamese culture since long back. It was the administrative head quarter of
the Ahom rulers. The extensive and fertile plains coupled with the cultural heritage of
the area support a large population base.
4.5.1: Population
As per 2001 census, the total population of the study area was 2997236
persons (11.24 per cent of the total population of the state) of which 1552777 (or
51.81 %) were males and 1444459 (or 48.19 %) were females. The sex ratio of the
study area is 930 and it is lower than the state average (935 females against every
thousand males). The area has only 11.66 per cent urban population and remaining
88.33 percent people live in the rural areas. The total number of households in the
98
three districts of the study area is 582074. Of these only 73583 are urban and the
remaining 508491 households are in the rural areas.
The religious composition of the population of the study area shows that 89.04
per cent of the people are Hindus. The Muslims, Christians, Buddhists, Sihkhs and
Jains constitute respectively 6.95, 3.31, 0.32, 0.14 and 0.05 per cent of the total
population of the area. The castes among the Hindus of the study area include the
Ahom, Chutiya, Kalita, Koch, Kaivarta, Brahmins, Keot, Yogi, Sut, Kayastha,
Kachari, Mishing, Mikir (Karbi) and the tea garden workers (Taher, 2000).
Source: Statistical Hand Book , Assam (2008)
Fig. 4.5: Linguistic composition of the study area (2001)
Again, as per 2001 census, the scheduled caste population of the study area is
165591 which forms 5.52 per cent of the total population. The scheduled tribes of the
study area, with a population of 258587 persons form 8.63 per cent of the total
population of the study area. With regard to literacy rate, it is noticed that all the
districts of the study area show a higher literacy rate than the state average. As per
2001 census, the rate of literacy of Golaghat, Jorhat and Sibsagar district were 69.38
99
%, 76.33 % and 74.74 per cent respectively, when the state average was 63.25 per cent
only. Jorhat records the highest literacy rate among all the districts of Assam.
It comes from another analysis that of the 2997236 persons of the study area,
2416381 persons or 80.62 per cent of the population speak Assamese as their mother
tongue (Fig. 4.5). The next largest group in terms of the mother tongue is the Bengali.
The number of Bengali speaking people is 128697 and it forms 4.29 per cent of the
total population. Hindi speaking people, with 109302 persons constitute 3.65 per cent
of the population. Other languages of the study area are Nepali (1.34 %), Oriya (1.23
%), Bodo (0.67 %), Manipuri (0.33 %), Santhali (0.25 %) and Punjabi (0.14 %).
4.5.2: Settlement
The rural population of the study area constitutes 80.33 per cent of the total
population and these people have been living in 2719 villages of the study area. The
total number of villages covering all the three districts of the study area is 2820, but
the number of inhabited villages is 2719 only. It indicates that 101 villages of the
study area have no population. The number of total households in the study area is
582074 and 87.36 per cent of these households are in the rural areas. These villages
are scattered all over the area, but these are widely spaced in the active floodplains
and in the foothills of the area.
In the study area, three types of villages, i.e., the revenue villages, the forest
villages and the encroached villages are observed. The revenue villages dominate the
other villages in number and these are recognised by the state revenue department.
The dwellers of the revenue villages pay land revenue to the Govt. exchequer. The
forest villages are villages set up by the concerned department inside the reserved
forests under certain terms and conditions. The dwellers of these forest villages pay a
minimum tax to the department, but not directly to the Govt. exchequer. The number
100
of these villages is the least. The third type is the encroached villages mainly found in
the reserved forests of the study area. The number of the encroached villages is
smaller than the revenue villages, but it is many times more than the forest villages.
The villagers of these encroached villages do not pay the land tax or land revenue.
These villages are of great significance with regard to the present study as they have
been identified as the major factor affecting the land cover as well as deforestation in
the study area. The encroached villages, their distribution, population they have, their
role in the land cover change and many other aspects will be dealt in details in a
succeeding chapter.
As per the 2001 census, the study area has 18 urban centres. The seven urban
centres of Jorhat district have 171363 persons, which constitutes 49.01 per cent of the
urban population of the study area. Sibsagar district has five urban centres and they
together constitute 27.79 per cent of the urban population of the study area. Golaghat
district, with six urban centres claims 23.20 per cent of the total urban population of
the study area. Jorhat is the only declared city of the area. Among the 18 urban
centres, five centres (including Jorhat) have Municipal Boards, seven urban centres
have Town Committee and six centres are Census Towns.
From ancient time, two major roads are passing across the study area in an east-
west orientation. One of these roads is the Cheuni-Ali or Assam Trunk Road (A.T.
Road) or National Highway No. 37, which passes through the middle of the study
area. The other road is the Dhodar-Ali, which passes mainly through the southern part.
These transport lines are connected by a large number of branch lines and feeder
roads. In view of connectivity, most of the villages of the study area are located along
these roads and the branch and feeder roads. This is why, the middle tract or the area
between the tracts of foothills and the active floodplain has comparatively more
101
concentration of villages. The railway line between Guwahati and Tinisukia of Upper
Assam has also increased the connectivity of the area as it runs through this middle
tract of the study area.
Recently, it has been observed that human settlement has been increasing in
the sub urban areas around all the 18 urban centres. This process is taking place at the
cost of the fertile agricultural lands.
4.6: Transport, Communication and Development Activities
The study area enjoys all modes of transportation and it is well connected to
the rest of the India. Three National highways (NH) pass through the area. The NH-
37 passes across all the three districts of the study area. Again, NH-39 and NH-61
originate from NH-37 and they connect Nagaland with Assam. There have been,
however, several other roads connecting Assam and Nagaland since long back. As the
study area had been the capital of the Ahom kingdom, several roads were constructed
by the Ahom rulers at different periods. The Dhodar ali (ali means road) is one such
notable road. The Gar ali, Cheuni ali, Bor ali, Kamarbandha ali, Rohdoi ali are some
other examples of this kind. These roads are now maintained by the state Public
Works Department (PWD).
The railway line between Guwahati and Tinisukia runs across all the districts
of the study area. This single-line railway tract has a loop line which originates from
the Furkating Junction and moving via Golaghat, Numaligarh, Baruabamun gaon and
Jorhat Town, it ends at the same railway tract at Mariani Junction. Another branch line
has recently been opened from Simaluguri Junction to Dibrugarh via Moran. Few
other branch lines, e.g. Jorhat-Nimati, Titabar-Jorhat, Amguri-Tuli and Simaluguri-
Naginimara, which were operative in the past have now been closed for certain
102
reasons. The Jorhat Town railway station has a goods yard, which is a transshipment
point for goods coming to Assam from other states by trains. The goods unloaded here
are loaded to trucks to different places of Assam and other neighbouring states.
The only airport in the study area is at Rawraiah, only six km away from
Jorhat city. This airport has flight services to Gopinath Bordoloi International Airport
(Guwahati), The Domdom airport (Kolkata) and many inland as well as international
airports.
During the British rule in Assam, the river Brahmaputra was used as a water
way and steamer services were introduced for transportation of goods mainly tea and
passengers. In addition to these steamer services, country boats were widely used in
Brahmaputra and its tributaries for both passenger and goods. In absence of bridges
across the rivers, the country boats provided ferry services at a number of points,
locally known as ghats. The steamer services were withdrawn for several reasons, the
prime among which is the siltation that took place in the bed of Brahmaputra after the
1950 earthquake. The construction of bridges across various rivers during the post
independence period substantially reduced the dependency of boat services in the area.
But, engine driven country boats are still in operation between Majuli (a river island
of Brahmaputra and a sub-division of Jorhat district) and the mainland on the other
side of the Brahmaputra. These boats are the only means of transportation to visit
Majuli.
As regards communication, the study area has reach to nearly all means of
modern communication including news paper, radio, television, telephone and cellular
phones, post and telegraph services and the like. The first Assamese news paper
Arunodoy was published from Sibsagar in 1846. An Assamese daily is now being
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published from Jorhat. Few other Assamese dailies have their satellite editions from
Jorhat.
With regard to developmental activities it can be said that many roads and
bridges have been constructed during the last decade mainly in the rural areas.
Arrangements for drinking water for the villages have been made, but all the villages
are not getting pure drinking water. Developments are taking place in the health
sector. A Medical College at Jorhat has recently been started. However, the medical
facilities are centralised mainly in the urban areas which puts the rural folk into misery
when they are sick. It is good that the epidemics like cholera, malaria, dysentery could
be controlled to some extent through the implementation of the health programmes.
The agricultural economy of the study area can be improved by means of
agricultural development only. Though measures have been taken for its development,
the outcome is not satisfactory. Several irrigation schemes of the area are not
functioning today. Again, many of the villages are non-electrified and the electrified
ones are also not getting constant power supply. All these problems need solution for
overall development of the area.