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  1. The Red River Delta or Hong River Delta ( Vietnamese: Châu thổ sông Hồng) is the flat low-lying plain formed by the Red River and its distributaries merging with the Thái Bình River in northern Vietnam. Hồng (紅) is a Sino-Vietnamese word for "red" or "crimson."

    • Geography

      Spanning some 150 km in width, the Red River Delta is...

    • Delta economy

      In 2003, of the 78 million people in Vietnam, almost a third...

  2. The Red River Delta Biosphere Reserve (established 2004) is a UNESCO biosphere reserve in the coastal region of northern Vietnam. Mangroves and intertidal habitats of the Red River Delta form wetlands of high biodiversity especially in the Xuan Thuy and Tien Hai districts.

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    Where is the Red River Delta located in Vietnam?

    Where is the Red River Delta coalfield located?

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    What is the Red River Delta biosphere reserve?

  4. The Red River is about 885 kilometres (550 mi) long, [2] of which about 635 kilometres (395 mi) are in the United States and about 255 kilometres (158 mi) are in Canada. [3] The river falls 70 metres (230 ft) on its trip to Lake Winnipeg, where it spreads into the vast deltaic wetland known as Netley Marsh.

    • Overview
    • Geography
    • As a travel and transportation route
    • Dams

    The Red River, also known as the Hong River, the Hồng Hà and Sông Cái in Vietnamese, and the Yuan River in Chinese, is a 1,149-kilometer -long river that flows from Yunnan in Southwest China through northern Vietnam to the Gulf of Tonkin. According to C. Michael Hogan, the associated Red River Fault was instrumental in forming the entire South Chin...

    The Red River begins in China's Yunnan province in the mountains south of Dali. Main headstreams Leqiu River, Xi River and Juli River confluence at Nanjian where they form the Lishe River. The Lishe River meets with another headstream, the Yijie River at Hongtupo, Chuxiong Prefecture. It flows generally southeastward, passing through Yi and Dai eth...

    In the 19th century, the Red River was thought to be a lucrative trade route to China. The late 19th-century French explorers were able to travel up the Red River until Manhao in South Yunnan, and then overland toward Kunming. The Red River remained the main commercial travel route between the French Indochina and Yunnan until the opening of the Ku...

    A number of hydroelectric dams have been constructed on the Red River in Yunnan: 1. Da Wan Dam 2. Dachunhe I Dam 3. Dachunhe II Dam 4. Nansha Dam, near Nansha Town, Yuanyang County 5. Madushan Dam, near Manhao Town, Gejiu City Many more dams exist on the Red River's tributaries, both in Yunnan and in Vietnam. One of the earliest of them is the Thác...

    • 143,600 km² (55,400 sq mi), 169,000 km² (65,000 sq mi)
    • Ba Lạt
  5. › wiki › River_deltaRiver delta - Wikipedia

    • Overview
    • Etymology
    • Formation
    • Types
    • Sedimentary structure
    • Existential threats to deltas

    A river delta is a landform shaped like a triangle, created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or another river that cannot carry away the supplied sediment. It is so named because its ...

    A river delta is so named because the shape of the Nile Delta approximates the triangular uppercase Greek letter delta. The triangular shape of the Nile Delta was known to audiences of classical Athenian drama; the tragedy Prometheus Bound by Aeschylus refers to it as the "triangular Nilotic land", though not as a "delta". Herodotus's description o...

    River deltas form when a river carrying sediment reaches a body of water, such as a lake, ocean, or a reservoir. When the flow enters the standing water, it is no longer confined to its channel and expands in width. This flow expansion results in a decrease in the flow velocity, which diminishes the ability of the flow to transport sediment. As a r...

    Deltas are typically classified according to the main control on deposition, which is a combination of river, wave, and tidal processes, depending on the strength of each. The other two factors that play a major role are landscape position and the grain size distribution of the source sediment entering the delta from the river.

    The formation of a delta is complicated, multiple, and cross-cutting over time, but in a simple delta three main types of bedding may be distinguished: the bottomset beds, foreset/frontset beds, and topset beds. This three part structure may be seen in small scale by crossbedding. 1. The bottomset beds are created from the lightest suspended partic...

    Human activities in both deltas and the river basins upstream of deltas can radically alter delta environments. Upstream land use change such as anti-erosion agricultural practices and hydrological engineering such as dam construction in the basins feeding deltas have reduced river sediment delivery to many deltas in recent decades. This change mea...

  6. From Wikipedia, the free encyclopedia The Red River Delta is a large coal field located in the north of Vietnam in Thái Bình Province . The Red River Delta contains one of the largest coal reserves in Vietnam, having estimated reserves of 210 billion tons of coal. [1] References [ edit] ^ "Mineral deposits of Vietnam" (PDF). 2012.

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