Ürümqi
Water supply

Although surrounded by deserts (the Gurbantünggüt in the north and the Taklamakan in the south), the Ürümqi area is naturally watered by a number of small rivers flowing from the snow-capped Tian Shan mountains: the main range of the Tian Shan in south of the city (Ürümqi County), and the Bogda Shan east of the city (Dabancheng District).

There are 20,000 glaciers in Xinjiang – nearly half of all the glaciers in China. Since the 1950s, Xinjiang's glaciers have retreated by between 21 percent to 27 percent due to global warming. Tianshan Glacier No. 1 (一号冰川), origin of Ürümqi River, is the largest glacier near a major city in China, but has already split into two smaller glaciers.

As the Ürümqi region's population and economy are growing, the water demand exceeds the natural supply. To alleviate water shortages, the Irtysh–Ürümqi Canal was constructed in the first decade of the 21st century. The canal's main trunk terminates in the so-called "Reservoir 500" ("500"水库; 44°12′00″N 87°49′00″E / 44.20000°N 87.81667°E) in the far north-eastern suburbs of the city (on the border of Ürümqi's suburban Midong District and Fukang City). A new industrial area, called Ganquanbao Industrial Park (甘泉堡工业园), or Industrial New City 500 (500工业新城) was being developed in 2009, west of the reservoir, relying on it for water supply. From the reservoir area water is further distributed over a network of canals throughout the lower Midong District.
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