Evergreen Chotanagpur Plateau from Ranchi Howrah Intercity

Channel: andy25biotech   |   2013/07/07
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Evergreen Chotanagpur Plateau from Ranchi Howrah Intercity
Evergreen Chotanagpur Plateau from Ranchi Howrah Intercity
::2013/07/07::
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Monsoon magic at Chotanagpur Plateau : Jabalpur Howrah Shaktipunj Express
Monsoon magic at Chotanagpur Plateau : Jabalpur Howrah Shaktipunj Express
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Tribal region - India (A journey to Chota Nagpur Plateau)
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Tunnels,Saranda Forest,Chotanagpur Plateau and Twin Alco! : Alappuzha TATA Express
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The green of the monsoon land on chotanagpur plateau
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West Bengal Sampark Kranti Express Hits MPS Across Chhota Nagpur Plateau
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2381 Poorva Express hits MPS across the Chhota Nagpur Plateau
2381 Poorva Express hits MPS across the Chhota Nagpur Plateau
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Howrah Rajdhani through Chota Nagpur Hills - Part 1.AVI
Howrah Rajdhani through Chota Nagpur Hills - Part 1.AVI
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Hamar Chotanagpur   Heera Nagpur Nagpuri
Hamar Chotanagpur Heera Nagpur Nagpuri
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Evergreen Chhota Nagpur Hills from Sealdah Duronto Express
Evergreen Chhota Nagpur Hills from Sealdah Duronto Express
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Gurpa Gujhandi Ghat Section: Sealdah Rajdhani Express Crosses the Chhota Nagpur Hills
Gurpa Gujhandi Ghat Section: Sealdah Rajdhani Express Crosses the Chhota Nagpur Hills
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HAYE RE HAMAR CHOTANAGPUR @ ISM DHANBAD
HAYE RE HAMAR CHOTANAGPUR @ ISM DHANBAD
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Howrah New Delhi Duronto Express Cruises Past the Parasnath Hills
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Howrah Duronto Speeds through the Sal Forests of Hazaribagh and the Chhota Nagpur Plateau
Howrah Duronto Speeds through the Sal Forests of Hazaribagh and the Chhota Nagpur Plateau
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Ascending up the Gurpa- Gujhandi Ghat section in the Chota Nagpur Hills: ASR- SDAH Express
Ascending up the Gurpa- Gujhandi Ghat section in the Chota Nagpur Hills: ASR- SDAH Express
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village animals
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bakura highway petrol pamp
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bishnupur village sites
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bishnupur small pull
bishnupur small pull
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Bankura brize and market
Bankura brize and market
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birbhum lal mati road
birbhum lal mati road
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birbhum train
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big big tree in purulia
big big tree in purulia
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Amezing TRIBAL MUSEUM - RANCHI - JHARKHAND (India)
Amezing TRIBAL MUSEUM - RANCHI - JHARKHAND (India)
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From Wikipedia, the free encyclopedia
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Chota Nagpur Plateau
Plateau
Cities Ranchi, Jamshedpur
Rivers Damodar River, Subarnarekha River, Barakar River
Coordinates 23°21′N 85°20′E / 23.350°N 85.333°E / 23.350; 85.333
Highest point Pareshnath Hill
 - elevation 1,350 m (4,429 ft)
 - coordinates 23°57′40″N 86°08′14″E / 23.96111°N 86.13722°E / 23.96111; 86.13722
Topo map India, Jharkhand

The Chota Nagpur Plateau is a plateau in eastern India, which covers much of Jharkhand state as well as adjacent parts of Odisha, West Bengal, Bihar and Chhattisgarh. The Indo-Gangetic plain lies to the north and east of the plateau, and the basin of the Mahanadi River lies to the south. The total area of the Chota Plateau is approximately 65,000 square kilometres (25,000 sq mi).[1]

Etymology[edit]

The name Nagpur is probably taken from Nagavanshis, who ruled in this part of the country. Chota is a corruption of the word Chutia, a village in the outskirts of Ranchi, which has the remains of an old fort belonging to the Nagavanshis.[2]

Formation[edit]

Damodar River flows through Chota Nagpur Plateau

The Chota Nagpur Plateau is a continental plateau - an extensive area of land thrust above the general land. The plateau has been formed by continental uplift from forces acting deep inside the earth.[3] The Gondwana substrates attest to the plateau's ancient origin. It is part of the Deccan Plate, which broke free from the southern continent during the Cretaceous to embark on a 50-million-year journey that was violently interrupted by the northern Eurasian continent. The northeastern part of the Deccan Plateau, where this ecoregion sits, was the first area of contact with Eurasia.[4]

Divisions[edit]

The Chota Nagpur Plateau consists of three steps. The highest step is in the western part of the plateau, where pats, as a plateau is locally called, are 3,000 feet (910 m) - 3,500 feet (1,100 m) above sea level. The highest point is 3,819 feet (1,164 m). The next part contains larger portions of the old Ranchi and Hazaribagh districts and some parts of old Palamu district, before these were broken up into smaller administrative units. The general height is 2,000 feet (610 m). The topography in undulating with prominent gneissic hills, often dome-like in outline. The lowest step of the plateau is at an average level of around 1,000 feet (300 m). It covers the old Manbhum and Singhbhum districts. High hills are a striking part of this section - Parasnath Hills rise to a height of 4,480 feet (1,370 m) and Dalma Hills to 3,407 feet (1,038 m).[2] The large plateau is subdivided into several small plateaux or sub plateaux.

Pat region[edit]

The western higher plateau with an average elevation of 1,000 metres (3,300 ft) above mean sea level merges into the plateau of Surguja district of Chattisgarh. The flat topped plateaux, locally known as pats are characterized by level surface and accordance of their summit levels shows they are part of one large plateau.[5] The area is also referred to as Western Ranchi Plateau. It is believed to be composed of Deccan lava.[6]

Ranchi plateau[edit]

Dassam falls in Ranchi Plateau

It is the largest part of the Chota Nagpur Plateau. The elevation of the plateau land in this part is about 700 metres (2,300 ft) above mean sea level. The general topography is undulating.[1][6] The Ranchi plateau gradually slopes down towards south-east into the hilly and undulating region of Singhbhum (earlier Singhbhum district or what is now Kolhan division).[7] The plateau is highly dissected. Damodar River originates here and flows through a rift valley.[3] To the north it is separated from the Hazaribagh plateau by the Damodar trough.[6] To the west is a group of plateaux called pat[3]

There are many waterfalls at the edges of Ranchi plateau where rivers coming from over the plateau surface form waterfalls when they descend through the precipitous escarpments of the plateau and enter the area of significantly lower height. The North Karo River has formed a 17 metres (56 ft) high Pheruaghaugh Falls at the southern margin of Ranchi plateau. Such falls are called scarp falls. Hundru Falls (75 m) on Subarnarekha River near Ranchi, Dassam Falls (39.62 m) on Kanchi River, east of Ranchi, Sadni Falls (60 m) on Sankh River (Ranchi plateau) are examples of scarp falls. Sometimes waterfalls of various dimensions are formed when tributary streams join the master stream from great height forming hanging valleys. At Rajrappa (10 m), the Bhera river coming over from the Ranchi plateau hangs above the Damodar River at its point of confluence with the latter. The Jonha Falls (25.9 m) is another example of this category of falls. In fact the Gunga River hangs over its master stream, Raru River (to the east of Ranchi city) and forms the said falls.[8]

Hazaribagh plateau[edit]

The Hazaribagh plateau is often subdivided into two parts – the higher plateau and the lower plateau. Here the higher plateau is referred to as Hazaribagh plateau and the lower plateau as Koderma plateau. The Hazaribagh plateau on which Hazaribagh town is built is about 40 miles (64 km) east by west and 15 miles (24 km) north by south with an average elevation of 2,000 feet (610 m). The north-eastern and southern faces are mostly abrupt; but to the west it narrows and descends slowly in the neighbourhood.of Simaria and Jabra where it curves to the south and connects with the Ranchi Plateau through Tori pargana.[9] It is generally separated from the Ranchi plateau by the Damodar trough.[6]

The western portion of Hazaribagh plateau constitutes a broad watershed between the Damodar drainage on the south and the Lilajan and Mohana rivers on the north. The highest hills in this area are called after the villages of Kasiatu, Hesatu and Hudu, and rise fronting the south 600 ft above the general level of the plateau. Further east along the southern face a long spur projects right up to the Damodar river where it ends in Aswa Pahar (2,465 ft). At the south-eastern corner of the plateau is Jilinga Hill (3,057 ft). Mahabar Jarimo (2,185 ft) and Barsot (2,180 ft) stand in isolation to the east, and on the north-west edge of the plateau Sendraili (2,210 ft) and Mahuda (2,409 ft) are the most prominent features. Isolated on the plateau, in the neighbourhood of Hazaribagh town are four hills of which the highest Chendwar rises to 2, 810 ft. On all sides it has an exceedingly abrupt scarp, modified only on the south-east. In the south it falls almost sheer in a swoop of 2,200 feet to the bed of Bokaro River, below Jilinga Hill. Seen from the north the edge of this plateau has the appearance of a range of hills,[9] at the foot of which (on the Koderma plateau) runs Grand Trunk Road / NH 2.

Koderma plateau[edit]

The Koderma plateau is also referred to as the Hazaribagh lower plateau[9][10] or as the Chauparan-Koderma-Girighi sub-plateau.[11]

The northern face of the Koderma plateau, elevated above the plains of Bihar, has the appearance of a range of hills, but in reality it is the edge of a plateau, 800 ft from the level of the Gaya plain. Eastward this northern edge forms a well-defined watershed between heads of the tributaries of Gaya and those of the Barakar River, which traverses the Koderma and Giridih districts in an easterly direction. The slope of this plateau to the east is uniform and gentle and is continued past the river, which bears to the south-east, into the Santhal Parganas and gradually disappears in the lower plains of Bengal. The western boundary of the plateau is formed by the deep bed of the Lilajan River.The southern boundary consists of the face of the higher plateau, as far as its eastern extremity, where for some distance a low and undistinguished watershed runs runs east ward to the western spurs of Parasnath Hills. The drainage to the south of this low line passes by the Jamunia River to the Damodar.[9]

Damodar trough[edit]

The Damodar basin forms a trough between the Ranchi and Hazaribagh plateaux resulting from enormous fractures at their present edges, which caused the land between to sink to a great depth and incidentally preserved from denudation the Karanpura, Ramgarh and Bokaro coalfields. The northern boundary of the Damodar valley is steep as far as the south eastern corner of the Hazaribagh plateau. On the south of the trough the Damodar keeps close to the edge of the Ranchi plateau till it has passed Ramgarh, after which a turn to the north-east leaves on the right hand a wide and level valley on which the Subarnarekha begins to intrude, south of Gola till the Singhpur Hills divert it to the south. Further to the east the Damodar River passes tamely into the Manbhum sector of lowest step of the Chotanagpur plateau.[9]

Palamu[edit]

The Palamu division generally lies at a lower height than the surrounding areas of Chota Nagpur Plateau. On the east the Ranchi plateau intrudes into the division and the southern part of the division merges with the Pat region. On the west are the Surguja highlands of Chhattishgarh and Sonbhadra district of Uttar Pradesh. The Son River touches the north-western corner of the division and then forms the state boundary for about 45 miles (72 km). The general system of the area is a series of parallel ranges of hills running east and west through which the North Koel River passes. The hills in the south are the highest in the area, and the picturesque and isolated cup-like Chhechhari valley is surrounded by lofty hills on every side. Lodh Falls drops from a height of 143 metres (469 ft) from these hills, making it the highest waterfall on the Chota Nagpur Plateau. Netarhat and Pakripat plateaux are physiographically part of the Pat region.[12][13]

Manbhum-Singhbhum[edit]

Joychandi Pahar in Purulia district in West Bengal

In the lowest step of the Chota Nagpur Plateau, the Manbhum area covers the present Purulia district in West Bengal, and Dhanbad district and parts of Bokaro district in Jharkhand, and the Singhbhum area broadly covers Kolhan division of Jharkhand. The Manbhum area has a general elevation of about 1,000 feet (300 m) and it consists of undulating land with scattered hills – Baghmundi and Ajodhya range, Panchakot and the hills around Jhalda are the prominent ones.[14] Adjacent Bankura district of West Bengal has been described as the “connecting link between the plains of Bengal on the east and Chota Nagpur plateau on the west.”[15] The same could be said of the Asansol and Durgapur subdivisions of Bardhaman district.

The Singhbhum area contains much more hilly and broken country. The whole of the western part is a mass of hill ranges rising to 3,000 feet (910 m) in the south-west. Jamshedpur sits on an open plateau, 400 feet (120 m) to 800 feet (240 m) above mean sea level, with a higher plateau to the south of it. The eastern part is mostly hilly, though near the borders of West Bengal it flattens out into an alluvial plain.[16] In the Singhbhum area, there are hills alternating with valleys, steep mountains, deep forests on the mountain slopes, and, in the river basins, some stretches of comparatively level or undulating country. The centre of the area consists of an upland plateau enclosed by hill ranges. This strip, extending from the Subarnarekha River on the east to the Angarbira range to the west of Chaibasa, is a very fertile area. Saranda forest is reputed to have the best Sal forests in Asia.[17]

Climate[edit]

The Chota Nagpur Plateau has an attractive climate. For five to six months of the year, from October onward the days are sunny and bracing. The mean temperature in December is 73 °F (23 °C). The nights are cool and temperatures in winter may drop below freezing point in many places. In April and May the day temperature may cross 100 °F (38 °C) but it is very dry and not sultry as in the adjacent plains. The rainy season (June to September) is pleasant.[18] The Chota Nagpur Plateau receives an annual average rainfall of around 1400 mm, which is less than the rainforested areas of much of India and almost all of it in the monsoon months between June and August.[19]

Ecology[edit]

Sal Trees (Shorea robusta) are found in forests of Chota Nagpur Plateau

The plateau has been defined as the Chota Nagpur dry deciduous forest, a tropical and subtropical dry broadleaf forests ecoregion drier than surrounding areas such as the Eastern Ghats and the Satpura Range that encroach on it to the south. The plateau is covered with a variety of different habitats of which Sal forest is predominant. The plateau is home to the Palamau Tiger Reserve and other large blocks of natural habitat which are among the few remaining refuges left in India for large populations of tiger and Asian Elephants.[4]

Forests range from dry to wet and reach up to 25m tall. The plateau is also swampy in some places and in other parts is covered with bamboo grasslands and shrubs such as Holarrhena and Dodonaea. The flora of the plateau is distinct from the wetter parts of India that surround it and includes a number of endemic plants such as Aglaia haslettiana and endangered plant species including Madhuca longifolia and Butea monosperma.

Tigers, Asian elephants, Four-horned Antelope (Tetracerus quadricornis), blackbuck (Antilope cervicapra), and chinkara (Gazella bennettii), dhole wild dog (Cuon alpinus) and sloth bear (Melursus ursinus) are some of the animals found here while birds include the threatened Lesser Florican (Eupodotis indica), Indian Grey Hornbill and other hornbills.

More than half of the natural forest on the plateau has been cleared for grazing land and the scale of the mining operations on the plateau is disturbing to the movement and therefore the survival of wildlife including elephants and tigers. About 5% of the plateau is protected area the largest of which are Palamau Tiger reserve and Sanjay National Park.

Minerals[edit]

Chota Nagpur plateau is a store house of minerals like mica, bauxite, copper, limestone, iron ore and coal.[3] The Damodar valley is rich in coal and it is considered as the prime centre of coaking coal in the country. Massive coal deposits are found in the central basin spreading over 2,883 km2. The important coalfields in the basin are Jharia, Raniganj, West Bokaro, East Bokaro, Ramgarh, South Karanpura and North Karanpura.[20]

See also[edit]

References[edit]

  1. ^ a b "Chhota Nagpur Plateau". mapsofindia. Retrieved 2010-05-02. 
  2. ^ a b Sir John Houlton, Bihar, the Heart of India, pp. 127-128, Orient Longmans, 1949.
  3. ^ a b c d Geography By Yash Pal Singh. Retrieved 2010-05-02. 
  4. ^ a b "Chhota-Nagpur dry deciduous forests". The Encyclopaedia of Earth. Retrieved 2010-05-02. 
  5. ^ Perspectives in geomorphology By Hari Shanker Sharma. Retrieved 2010-05-02. 
  6. ^ a b c d "Jharkhand Overview". Retrieved 2010-05-02. 
  7. ^ "Effects of Urbanisation on ground water in Ranchi.". Retrieved 2010-05-02. 
  8. ^ Physical Geography: Hydrosphere By K. Bharatdwaj. Retrieved 2010-05-02. 
  9. ^ a b c d e Hazaribagh By Edward Lister. Retrieved 2010-05-02. 
  10. ^ "Natural Resources Data Management System". Ministry of Science and Technology, Govt. of India. Retrieved 2010-05-02. 
  11. ^ "Forest Resources Survey, Hazaribagh 2004". Retrieved 2010-05-02. 
  12. ^ Sir John Houlton, p. 159
  13. ^ "Gazetteer of Palamu District". Retrieved 2010-05-04. 
  14. ^ Sir John Houlton, p. 170
  15. ^ O’Malley, L.S.S., ICS, Bankura, Bengal District Gazetteers, pp. 1-20, 1995 reprint, Government of West Bengal
  16. ^ Sir John Houlton, p. 165
  17. ^ "The West Singhbhum District". Retrieved 2010-04-20. 
  18. ^ Sir John Houlton, p. 126
  19. ^ "Damodar Valley". About the Region – Damodar Basin. Ministry of Environments and Forests. Retrieved 2008-05-25. 
  20. ^ "Mineral Resources and Coal Mining". Retrieved 2010-05-03. 

Further reading[edit]

  • Gupta, Satya Prakash. Tribes of Chotanagpur Plateau: An Ethno-Nutritional & Pharmacological Cross-Section. Land and people of tribal Bihar series, no. 3. [Patna]: Govt. of Bihar, Welfare Dept, 1974.
  • Icke-Schwalbe, Lydia. Die Munda und Oraon in Chota Nagpur - Geschichte, Wirtschaft und Gesellschaft, Abhandlungen und Berichte des Staatlichen Museum für Völkerkunde Dresden, Band 40; Akademie-Verlag, Berlin 1983
  • Mukhopadhyay, Subhash Chandra. Geomorphology of the Subarnarekha Basin: The Chota Nagpur Plateau, Eastern India. [Burdwan]: University of Burdwan, 1980.
  • Sinha, Birendra K. Light at the End of the Tunnel: A Journey Towards Fulfilment in the Chotanagpur Plateau : a Study in Dynamics of Social-Economic-Cultural-Administrative-Political Growth. [S.l: s.n, 1991.
  • Sinha, V. N. P. Chota Nagpur Plateau: A Study in Settlement Geography. New Delhi: K.B. Publications, 1976.
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