Dadu River
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The Dadu River (), known in
Tibetan Tibetan may mean: * of, from, or related to Tibet * Tibetan people, an ethnic group * Tibetan language: ** Classical Tibetan, the classical language used also as a contemporary written standard ** Standard Tibetan, the most widely used spoken dialec ...
as the Gyelmo Ngul Chu, is a major river located primarily in
Sichuan Sichuan (; , ; Postal romanization, alternatively romanized as Szechuan or Szechwan) is a landlocked Provinces of China, province in Southwest China occupying most of the Sichuan Basin and the easternmost part of the Tibetan Plateau between ...

Sichuan
province, southwestern
China China (), officially the People's Republic of China (PRC; ), is a country in . It is the world's , with a of more than 1.4 billion. China spans five geographical and 14 different countries, the in the world after . Covering an area of ap ...

China
. The Dadu flows from the eastern
Tibetan Plateau The Tibetan Plateau (, also known as the Qinghai–Tibet Plateau or the Qing–Zang Plateau () or as the Himalayan Plateau in India, is a vast elevated plateau In geology Geology (from the Ancient Greek γῆ, ''gē'' ("earth") and -λ ...
into the
Sichuan Basin The Sichuan Basin (), formerly transliterated as the Szechwan Basin, sometimes called the Red Basin, is a Sedimentary basin, lowland region in southwestern China. It is surrounded by mountains on all sides and is drained by the upper Yangtze River ...
where it joins with the Min River, a
tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage ba ...
of the
Yangtze River along the Yangtze River. in Hubei Hubei (; Postal romanization, alternately Hupeh) is a landlocked provinces of China, province of the China, People's Republic of China, and is part of the Central China region. The name of the provinc ...
. Measured from its geographic source, the Dadu is actually longer than the Min and thus forms the
main stem In hydrology Hydrology (from Greek: wikt:ὕδωρ, ὕδωρ, "hýdōr" meaning "water" and wikt:λόγος, λόγος, "lógos" meaning "study") is the scientific study of the movement, distribution, and management of water on Earth and othe ...
of the Min River system.
Shuangjiangkou Dam The Shuangjiangkou Dam ( zh, 双江口大坝/双江口水电站), also referred to as Shuang Jiang Kou ( zh, 双江口), is an embankment dam currently being constructed on the Dadu River (Sichuan), Dadu River in Sichuan Province, China. When comple ...
, expected to be the tallest
dam A dam is a barrier that stops or restricts the flow of surface water An example of surface water is Lake Kinney. Surface water is water Water is an Inorganic compound, inorganic, Transparency and translucency, transparent, tast ...

dam
in the world, is being built on the Dadu River.


Geography


Source

The Dadu River originates, in name, in
Danba Rongzhag (), also Danba () is a county of the eastern Garzê Tibetan Autonomous Prefecture in western Sichuan, Sichuan Province, China. The county seat is the town of Zhanggu (). Climate References External links

Garzê Tibetan A ...
and ends in
Leshan Leshan, formerly known as Jiading or Jiazhou, is a prefecture-level city A road sign shows distance to the "Huangshi urban area" () rather than simply " Yangxin County from the neighboring Xianning), but still from the Huangshi main urban are ...

Leshan
where it meets the Min River. The true source of Dadu, and thus the entire Min River system, however, lies in
Qinghai Province Qinghai (; alternately romanized as Tsinghai, Ch'inghai), also called Kokonur, is a landlocked province A province is almost always an administrative division within a country or state. The term derives from the ancient Roman '' provinci ...
in the eastern
Tibetan Plateau The Tibetan Plateau (, also known as the Qinghai–Tibet Plateau or the Qing–Zang Plateau () or as the Himalayan Plateau in India, is a vast elevated plateau In geology Geology (from the Ancient Greek γῆ, ''gē'' ("earth") and -λ ...
. In this region there are multiple headwaters of the Dadu with nearly identical lengths that have resulted in competing claims as the true source of the Dadu. In 2013, the
China Academy of Sciences China, officially the People's Republic of China (PRC), is a country in East Asia. It is the List of countries and dependencies by population, world's most populous country, with a population of around 1.4 billion. Covering approximately 9.6& ...
announced they had located the geographic source of the Dadu in eastern
Darlag County Darlag County (; ) is a county of southeastern Qinghai Qinghai (; alternately romanized as Tsinghai, Ch'inghai), also called Kokonur, is a landlocked province A province is almost always an administrative division within a country or s ...
, Qinghai (). These headwaters () are a tributary of the Markog (), one of the two main upper stems of the Dadu along with the Darkog (). Traditionally, the source of the Dadu was considered to be in the Golog Mountains in Jigzhi County at the head of the Markog, but this source was found to be a few metres shorter than the true source. Similarly, the source of the Darkog in southern Darlag County is a mere shorter than the Ma'er Qu source. From the Dadu River's true source in Qinghai to the Min River's confluence with the Yangtze in Yibin, the length of the entire Min-Dadu River system is .


Course

The Dokog River in the west and the Markog River in the east both flow southeasterly from the Bayan Har Mountains in Qinghai and into Sichuan Province. The two stems meet in Ngawa Tibetan and Qiang Autonomous Prefecture, Aba Prefecture, and continue south as the Dajin Chuan (). Here, the river flows between the Daxue Mountains to the west and the Qionglai Mountains to the east. In Danba County, the Dajin Chuan meets the Xioajin Chuan () and together become the Dadu River in name. The Dadu continues south through Luding County, Luding until it turns east at Shimian. East of Hanyuan County, Hanyuan, the Dadu enters the Dadu River Canyon () before reaching the lowlands of the
Sichuan Basin The Sichuan Basin (), formerly transliterated as the Szechwan Basin, sometimes called the Red Basin, is a Sedimentary basin, lowland region in southwestern China. It is surrounded by mountains on all sides and is drained by the upper Yangtze River ...
just below Mount Emei. The Dadu River receives the Qingyi River (Sichuan), Qingyu River tributary and meets the Min River (Sichuan), Min at
Leshan Leshan, formerly known as Jiading or Jiazhou, is a prefecture-level city A road sign shows distance to the "Huangshi urban area" () rather than simply " Yangxin County from the neighboring Xianning), but still from the Huangshi main urban are ...

Leshan
. At the confluence of the Dadu with the Min, the Dadu possesses both greater water volume flow and a further source so it is considered the true course of the Min River system. From the confluence of the two rivers, the Min continues for another before meeting the Yangtze at Yibin.


History

The Dadu River marks the transition area between traditional Tibet to the west and History of China, historic China to the east. For this reason, it has long been considered a frontier region and has hosted many conflicts. For Tibetans, the Dadu is part of the historical province of Kham. In the Chinese tradition, the Dadu forms the westernmost part of Sichuan#Culture, Sichuanese culture. Kangding, a historical trading post between Tibet and
China China (), officially the People's Republic of China (PRC; ), is a country in . It is the world's , with a of more than 1.4 billion. China spans five geographical and 14 different countries, the in the world after . Covering an area of ap ...

China
, is located in the Dadu River basin. Upper Dadu River Basin traditionally consists of 18 rGyalrong Principalities, whose language, rGyalrongic languages, rGyalrongic, is a distinct branch in the Tibeto-Burman language family. Completed in 803 CE, the Leshan Giant Buddha is a large statue carved into the rock at the confluence of the Dadu and Min Rivers. The Buddha is a popular tourist attraction today. The 1786 Kangding-Luding earthquake, Kangding Louding earthquake of 1786 caused a landslide dam on the Dadu. Ten days later, on June 10 1786, the dam broke and the resulting flood extended downstream and killed 100,000 people. It is the second-deadliest landslide disaster on record. In the 20th century CE, the Dadu became famous for its Luding Bridge, a historically important bridge Battle of Luding Bridge, crossed by the Chinese Red Army while retreating from the Kuomintang troops during the Long March.


Dams

The Dadu is being heavily developed, primarily for hydroelectric power. As of March 2014, a total of 26 dams are completed, under construction or planned for the river. Those dams are listed below from downstream to upstream. *Angu Dam – Under construction, 320 MW *Fahuasi Dam – Planned, 240 MW *Shawan Dam – Under construction, 480 MW *Tongjiezi Dam – Completed, 600 MW *Gongzui Dam – Completed, 770 MW *Shaping Dam – Programmed, 630 MW *Zhentouba Dam – Programmed, 950 MW *Shenxigou Dam – Under construction, 660 MW *Pubugou Dam – Completed, 3,600 MW *Laoyingyan Dam – Programmed, 640 MW *Longtoushi Dam – Completed, 700 MW *Dagangshan Dam – Under construction, 2,600 MW *Yingliangbao Dam – Programmed, 1,200 MW *Luding Dam – Completed, 920 MW *Huangjinping Dam – Under construction, 850 MW *Changheba Dam – Under construction, 2,600 MW *Houziyan Dam – Under construction, 1,700 MW *Danba Dam – Programmed, 1,300 MW *Badi Dam – Programmed, 800 MW *Anning Dam – Programmed, 380 MW *Jinchuan Dam – Programmed, 860 MW *
Shuangjiangkou Dam The Shuangjiangkou Dam ( zh, 双江口大坝/双江口水电站), also referred to as Shuang Jiang Kou ( zh, 双江口), is an embankment dam currently being constructed on the Dadu River (Sichuan), Dadu River in Sichuan Province, China. When comple ...
– Under construction, 2,000 MW *Busigou Dam – Planned, 360 MW *Dawei Dam – Planned, 270 MW *Bala Dam – Planned, 740 MW *Xiaerxia Dam – Planned, 540 MW


In popular culture

* A song from the Chinese Musical theatre, musical ''The East Is Red (1965 film), The East Is Red'' is entitled "Across the Dadu River." * A 1980 Chinese film is titled Dadu River (film), Dadu River.


References


External links


The river and the bridge
{{China Rivers Rivers of Sichuan Tributaries of the Yangtze River