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Liujiaxia Reservoir

Coordinates:35°55′55″N103°20′45″E/ 35.93194°N 103.34583°E/35.93194; 103.34583
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Liujiaxia Reservoir
TheDaxia Riverflowing into the reservoir.
Liujiaxia Reservoir is located in Gansu
Liujiaxia Reservoir
Liujiaxia Reservoir
Coordinates35°55′55″N103°20′45″E/ 35.93194°N 103.34583°E/35.93194; 103.34583
TypeReservoir
BasincountriesChina
Built1969
Surface area130 km2(50 sq mi)
Water volume4.24 km3(1 cu mi)
Surface elevation1,735 m (5,692 ft)

TheLiujiaxia Reservoir(simplified Chinese:Lưu gia hiệp thủy khố;traditional Chinese:Lưu gia hiệp thủy khố;pinyin:Liújiāxiá Shuǐkù) is a reservoir in China'sGansuProvince, formed by theLiujiaxia Damon theYellow River.It occupies over 130 km2(50 sq mi),[1]and is located entirely withinLinxia Hui Autonomous Prefecture.The reservoir's shores belong to the prefecture'sYongjing County(the narrow northern part, and the north shore of the wide southern part),Dongxiang Autonomous County(eastern part of the south shore),Linxia County(western part of the south shore), andJishishan Bonan, Dongxiang and Salar Autonomous County(the small westernmost section of the south shore).

TheDaxia Riverand theTao Riverflow into the reservoirs, forming wide bays.

The water level in Liujiaxia Reservoir is usually reported as 1,735 m (5,692 ft) above the sea level,[2][3]but in practice it varies significantly, in accordance with the water flow and human needs.

The initial capacity of the reservoir was 5.7 km3(1.4 cu mi), but after 10 years it lost 10% of its capacity due tosilting,and after 17 years, 17.4%. This silting rate is considered quite low, compared to other reservoirs on the Yellow River, such as the narrow Yanguoxia Reservoir just downstream, which lost 71.3% of its storage capacity between 1958 and 1964 (and 77%, by 1965), orSanmenxia Reservoir,which lost 96% of its storage capacity to sedimentation in just 4 years.[4]

A ferry on the Liujiaxia Reservoir

The reservoir usually does not freeze over in winter, but during theunusually cold weather in early 2008over half of its surface froze, which necessitated taking measures to protect the turbines of the hydroelectric plant from floating ice.[5]

A variety of watercraft operate on the reservoir. Vehicle ferries run frequently across the reservoir between docks in Linxia County (Lianhua Tai) and Yongjing County. Recreational vessels and shuttle boats toBingling Templeoperate from a number of docks, in particular the one inLiujiaxia Townnear the dam.[6]

A panorama of Liujiaxia Reservoir. Looking upstream from a ferry crossing between Linxia County (Lianhua Tai ferry dock, seen on the left) and Yongjing County

See also[edit]

References[edit]

  1. ^"Lâm hạ lữ du" (Linxia Tourism), published by Linxia Hui Autonomous Prefecture Tourist Board, 2003. 146 pages. No ISBN. Pages 26=27.
  2. ^International Association of Engineering Geology (1986).Proceedings, Fifth International Congress, International Association of Engineering Geology, International Association of Engineering Geology.Vol. 2. Taylor & Francis. pp. 1225–1228.ISBN90-6191-662-3.
  3. ^Lâm hạ huyện địa lý hoàn cảnhArchived2011-07-07 at theWayback Machine(Linxia County geography and environment), at the county government site
  4. ^Batuca, Dan G.; Jordaan, Jan M. (2000).Silting and desilting of reservoirs.Taylor & Francis.ISBN90-5410-477-5.
  5. ^La centrale hydroélectrique de Liujiaxia prend activement des mesures pour assurer la production électrique en cas de gel,People's Daily, 28.02.2008.(in French)
  6. ^Bingling Temple GrottoesCRIENGLISH.com, 2005-12-05.