| Voice of Dhemaji District
: Mr. Jayant

Dhemaji is very backward as compared to other districts of Assam.
Lack of clean drinking water is a major issue faced by us
The communication links are not maintained. It is disrupted.
People are very ignorant due to lack of education
Health infrastructure needs lot of improvement.
Dhemaji District
Area, Population & Sex Ratio
Geographical Area : 3237.0 Km2
Population in Dhemaji (Census 2011)
Total Population
Total : 688,077
Male : 353,043
Female : 335,034
Under 6 population
Total : 99,692
Male : 51,266
Female : 48,426
Disabled population
Total disabled population : 10323
In seeing : 5048
In speech : 1365
In hearing : 1315
In movement : 1769
Mental : 826
Rank ( VoiceOfBharat.org Analysis
)
Backwardness : 60
Disability : 510 (Census 2001)
Minority : Does not figure in MCD
Literacy Ratio : 298 (Census 2001)
Sex Ratio Rank : 299
(Rank one is least sex ratio - Cenus 2001)
HIV Category District : C
(HIV Sentinel Surveillance 2004 - 2006)
Water : Occurrence of High Arsenic in Ground Water

Brief About Dhemaji District
The entire Dhemaji district area was originally
inhabitated by various indigeneous tribes like Mising, Sonowal Kachari,
Bodo Kachari, Deori and Laloong. In addition to this different tribes
e.g. Ahom, Rabha, Tai - Khamti, Konch, Keot, Koiborta, Brahman,
Kayastha, Kalita etc. were migrated during different moments of
time span.
There are a number of mythological and hypothetical
believes regarding the origin of the name "Dhemaji". One of the
most popular believe is that - there was a river which used to change
its course very frequently and resulted unanticipated flood covering
different parts of the area. Hence the river was believed to be
a kind of evil spirit. The Assamese version of the words flood and
playing are "Dhal" and "Dhemali" respectively and therefore the
area when flood is a perennial phenomenon may be called as a playground
for flood i.e., in Assamese it became to be "Dhal Dhemali" with
the ellapsation of time the word "Dhal" was omitted and also the
word "Dhemali" started to be pronounced as "Dhemaji".
Initially, the present geographical area of Dhemaji
district was a part of the then Lakhimpur District with its headquarter
at Dibrugarh. In 1971 Dhemaji was declared as a Sub-Division, Including
Jonai and Dhakuakhana (Presently under Lakhimpur District) 14th
Aug/1st Oct, 1989 Dhemaji was declared as an independent district
covering Jonai and Dhemaji (Sadar) Sub-Divisions.
Geography
The Dhemaji district came into being on 14th
August / 1st October 1989. It comprises of erstwhile Dhemaji and
Jonai sub-division and parts of Machkhowa mouza and Bordoloni. Forted
by arch shaped Arunachal hills on the North and the East, the district
emerges from the foot hills and streches to the Brahmaputra river
with Subansiri one side and the river Siang on the other. Geographically
situated between the 940 12' 18'' E and 950
41' 32'' E longitudes and 270 05' 27'' N and 270
57' 16'' N latitudes, the district covers an area of 3237 Sq. Km
and is a basically plain area lying at an altitude of 104 m above
the Mean Sea Level.
Physiography of Dhemaji District
The Brahmaputra Valley is of the nature of a “ramp” valley developed
during the simultaneous upheaval of the Himalayas on the North and
North East and the Patkai ranges on the South and South East. The
region is prone to earthquake and shocks of various intensities
are felt from time to time. The great earthquake of 1950 brought
a trail of devastation causing loss to both life and property. The
frequency of earthquakes in Assam is closely related to the geology
of the region.
The geological setting of Arunachal Himalaya
and evolution of Tertiary Himalaya:
Tectonically the Himalayan extension of northeast India is being
divided into Himalayan mountain ranges in the north and the Arakan
Yoma range in the east. The mountain belts merge together at its
eastern extremity through an arcuate bend (syntaxial bend) where
the NE-SW trend of the Himalaya seem to have ridden over the NNE-SSW
trending Arakan Yoma orogen. The northern limit of the Himalaya
is marked by a lineament along the westerly flowing Upper Indus
and easterly flowing Tsangpo (Upper Brahmaputra). This lineament
is known as Indus Suture. The Outer Himalaya, also called as Foredeep
Folded Belt or Siwalik Range, mostly and extensively covers the
western extremity of the range, but appears as a narrow strip on
the Southern Arunachal Pradesh. This Foredeep Folded Belt in the
West of Arakan Yoma Range comprises the low-lying hills of Mizoram,
Tripura and Manipur and comprises of Neogene sediments. The Indus
Suture Zone is highly deformed and is characterized by the presence
of nearly vertical thrust faults. According to Plate Tectonic theory,
the Indus Suture Zone constitutes the subduction zone along which
the Indian Plate collides with the Tibetan Plate giving rise to
the formation of the Himalayan mountains.
About 70 million years ago, there was a sea in
the North of Peninsular India which connected the Arabian Sea and
the Bay of Bengal across the northern parts of the subcontinent.
The sea started to recede towards the west and east during the early
Eocene. This trend of marine regression continued till the final
emergence of the Himalayan Mountains by the end of the Tertiary
Period. The rise of the Himalayas was accomplished in a series of
five or more impulses, intervened by intervals of comparative quiescence.
The collision of the Indian Plate with the Asian Plate retarded
the pace of northerly drift of the Indian Plate. The drift direction
slightly changed. The Indian Plate began its rotational movement,
giving rise to the formation of the syntaxial bend at the northeastern
extremity of the Himalayan Mountains. The Arakan Mountains in eastern
India and their continuation into the Andaman Nicobar Island were
also formed during the Tertiary diastrophism. Six pulses of diastrophic
movement having a widespread impact on the sedimentation pattern
in the Assam Arakan basin have been recognized.
From a tectonic point of view, Assam-Arakan basin
is classified as Foreland basin. The Assam-Arakan basin is located
between two thrust belts. The Tertiary sediments of the Upper Assam
belong to two distinct depositional facies – a relatively shallow
water shelf facies and a deep-water geosynclinal facies. Between
the Himalayas and the Naga-Disang thrust complex occurs an autochthonous
zone, the Foreland Spar containing sediments ranging in age from
Eocene to Pliestocene. These are intersected by a number of gravity
faults. Further east in the Patkai Range Tertiary sedimentation
took place under deeper water conditions punctuated by slight emergence
at some places. The sea receded southwards towards the end of the
Oligocene. Miocene sedimentation took place mostly under fresh water
to brackish conditions. Oligo-Miocene was also the time when the
deposits of Assam-Arakan basin were overthrusted towards the northwest
over the northeastern extension of the Indian Shield. The outermost
of this thrust, the Naga thrust belt consist of a succession of
six thrust sheets (Evans, 1932; Berger et al, 1983). The whole discussion
leads to the conclusion that the whole of northeast India is a tectonically
active zone due to presence of active thrusts, fault planes and
very fragile loose sediments, steep slope angle leading to frequent
landslides in the hilly areas. The courses of rivers are also influenced
by these active tectonic lineaments.
The district is in a strategic location where steep
slope of Eastern Himalayas abruptly drop forming a narrow valley,
which widens towards the western side. Numerous drainage systems
originating from the hills of Arunachal Pradesh flow through this
narrow valley ending at the mighty river Brahmaputra. In general
the slope of the triangular district drops from northern and eastern
corners towards south and western sides. After the confluence the
three mighty rivers i.e. Dihing, Dibang and Lohit from their hilly
course to the valley exert tremendous impact of peak runoff at the
eastern most corner of Dhemaji district, making the district vulnerable
to annual flooding. After the great earthquake in 1950 the Brahmaputra
riverbed is rising continuously due to deposition of sand carried
down from upstream. This has led to the formation of a saucer shaped
low-lying zone in the plains of the district.
Physiographically, the area can broadly be divided
into three district units :
- Piedmont zone: The foothill zone near the northern and eastern
parts adjacent to Arunachal Pradesh
- Active flood plain: Near the river Bramhaputra and other
major tributaries.
- Low-lying alluvial belt: Covering the middle plain zone i.e.
the saucer shaped built up zone. Innumerable beels and swampy
areas are common features.
Soil
The general and average soil character of cultivable land in
these districts is mainly alluvial and composed of mixture of sand
(coarse to fine) and clay in varying proportions. The general geochemical
characteristics of the soil is highly acidic. However, new alluvial
soils formed due to inundation of land by river at intervals contain
more percentages of fine sand fine silt and are less acidic. Such
soils are often neutral and even alkaline. Large expanse of low-lying
land characterized by heavy clayish soil with a high percentage
of nitrogen is good for rice cultivation. Abundant rainfall and
excessive humidity through out the year also greatly favor cultivation
of rice in the district .The soil around the Subansiri and Ranganadi
rivers are sandy coated with silt which is good for cultivation
of winter crops, such as raga, and mustard, potato etc.
The soils of this district can be broadly classified
into three different zones viz. The foothill soils, active flood
plain soils near the river Bramhaputra and the low-lying marshy
lands. A more detailed description is given below:
Demography
Dhemaji district shelters a population of 571944 as per 2001
census, which includes 294643 males and 277301 females, sex ratio
being 936 females per thousand males. The average density is 176
per Sq. Km. The Schedule tribe and schedule caste population of
the district works out to be 47.24% and 5.33% respectively of the
total population.
The urban population is only 1.85%, which indicates
the predominantly rural character of the district. The literacy
rate is 41.69% while the female literacy rate is 13.6%. The rate
of growth of population in the district between 1971 and 1991 was
104.48%, which incidentally, is the highest, recorded in the state.
The annual rate of growth of population worked out to be 5.22% compared
to the overall state growth of 2.62%.
In general there is a huge chunk of Other Backward
Classes (OBC) population comprising of Ahoms, Chutiyas, Konches
etc. The Schedule tribes include Mishings, Sonowal Kacharis Bodos,
Deoris, Lalungs, Hazongs, Ex-tea garden community makes up only
a negligible part of the total population. The principal languages
of the region are Assamese, Mishing, Bodo and Bengali. The principal
religion is Hinduism. However, Christianity and Islam are also practiced
to a limited extent. there is almost no record of Communal violence.
Land Utilisation
Dhemaji and Lakhimpur district have extensive plain areas, suitable
for cultivation but due to improper land use planning and unplanned
constructions a huge chunk of land becomes water logged due to rain
water as well as excessive flood water. Some of these areas dry
out during winter while some remain as ditches, cesspools or waterlogged
‘beel’ areas. Both these districts have a good number of ‘beels’
and marshes covered with thick and dense population of weeds, water
hyacinth, water lily etc. ranging in height from ten to twenty feet.
In addition, some areas are sand casted by flash floods caused by
embankment breaches.
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