Left-bank Karasu ( Uzbek. Chapqirg'oq Qorasuv kanali, Chapқirғoқ Қorasuv canals ) - a canal in Tashkent region , left branch of the Chirchik river . It is one of the oldest canals in the region and plays an important role in irrigation, feeding large branches ( Handam , Tashkent Canal ) and irrigating 165 thousand hectares of land in the territory of the region.
| Left Bank Karasu | |
|---|---|
| Uzbek Chapqirg'oq Qorasuv kanali | |
 Left-bank Karasu just below the head of the canal | |
| Location | |
| A country |
|
| Region | Tashkent province |
| Characteristic | |
| Length | 87 km |
| Water consumption | 160 m³ / s (headquarters) |
| Watercourse | |
| Head | Chirchik |
| · Head location | Verkhnechirchik waterworks (near the city of Chirchik ) |
| Head height | about 570 m |
| Mouth | Ahangaran |
| · The height of the mouth | about 320 m |
The left-bank Karasu canal is laid along the channel of the natural arm of the Chirchik River [1] , and can be considered as its channel [2] . A relatively rare case of water division shows up as a river channel: flowing into Akhangaran , transfers part of the water from Chirchik to another basin.
Content
- 1 Hydrological characteristics
- 2 Economic use
- 3 Sources
- 4 Literature
Hydrological Characterization
Left-bank Karasu originates at the Verkhnechirchik hydroelectric complex [3] (formerly the Trinity Dam [4] ), located on the Chirchik River at the southern border of the city of the same name [5] . Water intake regulation is carried out in an automated mode by means of a dam with 10 gates [6] . The sources provide various data on the throughput of its head structure: 180 [3] and 160 m³ / s [7] .
Throughout, Karasu retains the general southeastern direction of the current. On the left a lot of sais [com 1] flows into it, among which the largest are Yuzuruksai , Parkentsai , Samsareksai , Kyzylsai [3] . To the right, not a single tributary flows into the river [2] .
At the waterworks, Shamalak flows into the Akhangaran River [3] .
Economic Use
Left-bank Karasu is one of the most important irrigation canals of Tashkent region. Its waters irrigated 165 thousand hectares of land in Yukarychirchik , Urtachirchik and Akkurgan fogs [3] .
In the XX century, a number of dam water intake structures were built on the Left Bank of Karasu. The Naiman dam at the 59th kilometer of the current, erected in 1926 [3], became the first structure of this type. Algabas canals, RK-7 and RK-71 collectors [3] [8] originate from the Naiman dam. In 1930-1932, the construction of the Hantugansk water intake facility was underway [3] . The structure of the hydraulic structure includes a dam and a water distributor between the Margunenkova Canal , collectors RK-8 and RK-9 [3] [8] . In the 1960-1970s, 4 more water intake sites were built, located on the 3rd, 13th, 36th and 56th kilometers of the canal route [3] .
In the upper reaches from Karasu, a large branch of Handam departs, at the 36th kilometer - the Tashkent Canal named after I. A. Palvanov [3] .
Sources
- ↑ Sayas in Central Asia are ravines with permanent or temporary watercourses (in particular, relatively small rivers experiencing sharp seasonal fluctuations in full flow or completely drying up)
- Sources
- ↑ Buryakov Yu.F. Genesis and stages of development of urban culture of the Tashkent oasis. - Tashkent: Fan Publishing House of the Uzbek SSR, 1982. - P. 31. - 212 p. - 1000 copies.
- ↑ 1 2 Reserves of Central Asia and Kazakhstan / edited by Yashchenko R.V. - Almaty: Tethys, 2006 .-- S. 300 .-- 354 p. - 1000 copies.
- ↑ 1 2 3 4 5 6 7 8 9 10 11 Chapқirғoқ Қorasuv kanali - National Encyclopedia of Uzbekistan . - Tashkent, 2000-2005. ( Uzbek )
- ↑ Chirchik (river) - an article from the Great Soviet Encyclopedia .
- ↑ Map sheet K-42-92 . Scale: 1: 100,000. Status of the terrain for 1978. 1986 edition
- ↑ Newspaper.uz - Journalists familiarized themselves with the work of the Verkhne-Chirchik hydroelectric complex
- ↑ The main large channels of Uzbekistan
- ↑ 1 2 Map sheet K-42-XXIII . Scale: 1: 200 000. Indicate the date of issue / condition of the area .
Literature
- Chapқirғoқ Korasuv kanali - National Encyclopedia of Uzbekistan . - Tashkent, 2000-2005. ( Uzbek )