Jiayuguan (simplified Chinese:嘉峪关市;traditional Chinese:嘉峪關市;pinyin:Jiāyùguān Shìⓘ) is aprefecture-level city in northwesternGansu province, with a population of 312,663 as of the 2020 census. Compared with the 231,853 people in the sixth national census in 2010, there was an increase of 80,810 people, with an average annual increase of 3.04%.[3] Its built-up (or metro) area was home to 768,274 inhabitants made of Jiayuguan City and Suzhou urban district of Jiuquan City now being conurbated.[1]It is named after the nearbyJiayu Pass, the largest and most intact pass of theGreat Wall of China.
Jiayuguan is a major industrial city. In 1958, Jiuquan Iron and Steel Works established in Jiuquan,Gansu.[4] In 1965, parts ofJiuquan County andSunan Yugur Autonomous County (Including Jiuquan Iron and Steel Works) were marked out to establish the County-level Jiayuguan City, which is under the direct jurisdiction of Gansu Government. Following Jiuquan Iron and Steel Works, the largest Iron and Steel Works in Gansu, was assigned to Jiayuguan City, mining and mineral processing are the primary industries of the city. In 1971, Jiayuguan City was changed to a prefecture-level city. By area, it is by far the smallestprefecture-level division of Gansu. It is also one of the four prefecture-level cities which has no districts.
The fortress at Jiayuguan is situated at the end of the portion of theGreat Wall of China which was built by theMing Dynasty, in the 14th century.[5]
The Jiayuguan Pass, a part of the Great Wall of China World Heritage Site, is protected by a "Cultural Relics Monitoring and Early Warning Platform." This system uses sensors and drones to monitor structural stability, environmental factors, and visitor impact on the ancient fortifications in real-time.[6]
Jiayuguan has acool arid climate (KöppenBWk), in common with most of northwestern China. Summers feature pleasant mornings and very warm afternoons, whilst winters are freezing to frigid though with essentially no snow due to the extreme aridity produced by theSiberian High.
According to theSeventh National Census in 2020, the city's Permanent Population (hukou) was 185,231. Compared with 231,853 in theSixth National Census in 2010, the number has increased by 80,810, or an average annual increase of 3.04 percent.[9] The male population was 162,360, accounting for 51.93%; The female population was 150,303 (48.07%). The sex ratio of the resident population (100 females, male to female ratio) decreased to 108.02 from 114.59 in theSixth National Census in 2010.
^This is the old administrative division. In 1958,Jiuquan County andJinta County were merged to form the prefecture-level Jiuquan City (It is different from prefecture-level Jiuquan City today) until 1961.