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DAILY NEWS ANALYSIS

  • 10 March, 2021

  • 2 Min Read

Dams on Brahmaputra River Cleared in China's 5-Year Plan

  • A draft of 14th China’s new Five-Year Plan (2021-2025) has permitted first dams to be built on the lower basin of Yarlung Zangbo river (Brahmaputra’s name in Tibet), before it flows into India.
  • It calls for building a hydropower base on the lower reaches of Yarlung Zangbo river and clean energy bases in the Jinsha River.
  • Jinsha River is the upper course of Yangtze river in western China.
  • The project is also listed along with the Sichuan-Tibet railway and the national water network.

Brahmaputra River System

Region

Name

Tibet

Tsangpo (meaning ‘The Purifier’)

China

Yarlung Zangbo Jiangin

Assam Valley

Dihang or Siong, South of Sadiya: Brahmaputra

Bangladesh

Jamuna River

Padma River: Combined Waters of Ganga and Brahmaputra

Meghana: From the confluence of Padma and Meghna

  • The Brahmaputra (meaning the son of Brahma).
  • It is 2,900 km in length.
  • Source: Chemayungdung glacier (Kailas Range) at an elevation of about 5,150 m. It’s source is very close to the sources of Indus and Satluj.
  • Mariam La separates the source of the Brahmaputra from the Manasarovar Lake.
  • Inspite of the exceptionally high altitude, the Tsangpo has a gentle slope.
  • It receives a large number of tributaries in Tibet. The first major tributary is the Raga Tsangpo meeting the Tsangpo near Lhatse Dzong.
  • Towards the end of its journey in Tibet, its course abruptly takes a south ward turn around Namcha Barwa (7,756 m)(Syntaxial Bend).
  • Here it cuts across the eastern Himalaya through the Dihang or Siang Gorge and emerges from the mountains near Sadiya in the Assam Valley.
  • In the north-eastern parts of Assam Valley, it is joined by two important tributaries viz, the Dibang (or Sikang) from the north and Lohit from the south.
  • From Sadiya (Assam Valley) onwards, this mighty river is known as the Brahmaputra.
  • The main streams merging with the Brahmaputra from the north are, Subansiri, Kameng, Dhansiri (north), Raidak, Tista etc..
  • The Tista was a tributary of the Ganga prior to the floods of 1787 after which it diverted its course eastwards to join the Brahmaputra.
  • The river forms many islands, the most important of which is MAJULI.
  • With rainfall concentrated during the monsoon months only the river has to carry enormous quantities of water and silt which results in disastrous floods. The Brahmaputra is thus truly a River of Sorrow.
  • The river is navigable upto Dibrugarh from its mouth and serves as an excellent inland water transport route.
  • Brahmaputra bends southwards and enters Bangladesh near Dhubri.

Source: TH


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