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Yumen
玉门市
"County-level city
""Yumen Bus Station 01.jpg
""Location of Yumen City (pink) within Jiuquan City (yellow) and Gansu
Location of Yumen City (pink) within Jiuquan City (yellow) and Gansu
Coordinates: 39°50′N 97°34′E / 39.833°N 97.567°E / 39.833; 97.567"Coordinates: 39°50′N 97°34′E / 39.833°N 97.567°E / 39.833; 97.567
Country People's Republic of China
"Province "Gansu
"Prefecture-level city "Jiuquan
Elevation 1,507 m (4,944 ft)
Population (2002)
 • Total 106,812
"Time zone "China Standard ("UTC+8)
"Postal code 735200
"Area code(s) 0937

Yumen ("simplified Chinese: 玉门; "traditional Chinese: 玉門; "pinyin: Yùmén, literally, "Jade Gate,") is a city in western "Gansu province, China. It is a "county-level city with a population of 106,812 (2002 est.), and is part of "Jiuquan ""prefecture-level city" (a multi-county administrative unit). It is located on the "Silk Road and is best known for its oil production.

The city's name is often confused with the Yumen Guan or "Jade Gate which is the frontier-pass of ancient times, the entrance to the old "Silk Roads, which was situated not far to the west of "Dunhuang. Although both Yumen City and Yumen Gate are within Jiuquan, the latter is some 400 kilometres (250 mi) to the west from the former.

In 2014, areas of the city were sealed off after a resident died of the "bubonic plague. Districts of the city which house up to 100,000 were turned into "quarantine zones. The city allocated 1 million "yuan to be used for emergency "vaccinations.[1]

Contents

History[edit]

The site of Yumen was brought under Chinese control around the end of the 2nd century "BCE. Yumen was known as 'Huiji' in the 5th century when the area was reclaimed by the "Northern Wei Dynasty (386–534/535) and was soon after renamed back to Yumen in 581. Under the "Tang Dynasty (618–907), Yumen's "county seat was located at Chijinzhen which is east of the present Yumen City. The city was then under "Tibetan control around 770 CE for some 70 years. After the Tang dynasty, Yumen became a part of the "Western Xia (1038–1227). During the "Ming dynasty (1368–1644), the area came under Tibetan control again and was only reestablished later on in the early Qing dynasty (1644–1912).[2]

Economy[edit]

The overland route to "Western Asia from "China flourished until the end of the "Tang dynasty. Furthermore, due to increased use of "sea transportation, Yumen became a backwater.

There were two catalysts for Yumen's rapid revival in the 1930s and 40s. The construction of a modern highway over the old caravan route from Yumen to "Ürümqi (capital of the "Uygur Autonomous Region of "Xinjiang) and continuing on-wards to "Kazakhstan. The "railway of Yumen is the linking point of the "railway line between "Lanzhou (capital of "Gansu) and "Ürümqi.

After the discovery of "oil in the "Jiuquan basin, to the north of the "Qilian Mountains the city's economy was given another major push. The first oil was drilled at Laojunmiao near Yumen in 1939 where an appreciable production was achieved in 1941. Only until 1949 did large-scale development begin where soon after prospecting after 1950 revealed much larger reserves than had been speculated. Yumen has its own "refinery which is linked by "pipeline to "Lanzhou. Other than "oil drilling and "refining, Yumen also has "thermal and "wind "power-generating facilities. "Manufacturing includes "machinery, "building materials, "chemical fertilizers and process "agricultural products.[3]

Geography and climate[edit]

Yumen has a cold desert climate ("Köppen BWk), with an annual total precipitation of 67 millimetres (2.64 in), the majority of which occurs in summer. Winters are long and cold, with a 24-hour average temperature of −9.8 °C (14.4 °F) in January, while summers are very warm, with a July average of 21.7 °C (71.1 °F); the annual mean is 7.13 °C (44.8 °F). The "diurnal temperature variation reaches or exceeds 15 °C (27 °F) for much of the year. With monthly percent possible sunshine ranging from 67% in March to 80% in October, the city receives 3,214 hours of bright sunshine annually.

Climate data for Yumen (1971−2000)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) −2.8
(27)
1.7
(35.1)
9.0
(48.2)
17.5
(63.5)
23.3
(73.9)
26.9
(80.4)
28.6
(83.5)
27.9
(82.2)
23.0
(73.4)
15.2
(59.4)
5.8
(42.4)
−1.2
(29.8)
14.6
(58.2)
Average low °C (°F) −15.4
(4.3)
−12.2
(10)
−5.5
(22.1)
1.8
(35.2)
7.6
(45.7)
11.9
(53.4)
14.0
(57.2)
12.8
(55)
7.5
(45.5)
0.5
(32.9)
−6.7
(19.9)
−13
(9)
0.28
(32.5)
Average "precipitation mm (inches) 1.0
(0.039)
1.3
(0.051)
4.1
(0.161)
4.3
(0.169)
6.7
(0.264)
12.9
(0.508)
13.9
(0.547)
12.5
(0.492)
4.8
(0.189)
2.1
(0.083)
2.1
(0.083)
1.1
(0.043)
66.8
(2.629)
Average precipitation days (≥ 0.1 mm) 1.8 1.4 2.3 2.3 2.4 5.0 5.8 4.6 1.9 1.1 1.9 2.3 32.8
Average "relative humidity (%) 53 42 35 31 31 41 47 45 41 40 45 54 42
Mean monthly "sunshine hours 221.7 214.1 248.5 274.8 314.5 312.0 311.0 306.7 292.4 276.2 229.7 212.0 3,213.6
Percent "possible sunshine 75 72 67 69 71 70 68 72 78 80 77 73 73
Source: China Meteorological Administration

References[edit]

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