A prefecture-level city in the central-southern part of Sichuan Province, China. It is located in the Tuojiang River basin, a tributary of the Yangtze River, and is connected to the Nei-Kunming Line. It has jurisdiction over four city districts and two counties (as of 2016). It has a population of 3.3 million (2014). It is one of China's leading rock salt producers and is known as the "salt capital." Salt production began at the end of the Warring States period, and was expanded on a large scale, especially during the Tang dynasty, when successive dynasties established agencies to manage the monopoly of salt, which was an important source of revenue. During the Tang and Song dynasties, natural gas spouting from salt wells began to be used as fuel to boil pumped brine. In 1939, two salt producing areas, Ziliujing in Fushun County and Gongujing in Rong County, merged to form Zigong City. Since 1953, the construction of modern salt mines and salt factories has been promoted under the supervision of the State Salt Bureau, and today the salt-related chemical industry has developed and the area is also a producer of natural gas. The Zigong Dinosaur Museum is world-famous for the large number of dinosaur fossils excavated there, and the geopark that includes the museum was recognized as a Global Geopark in 2007 as "Zigong Geopark." [Kikuo Ono, Editorial Department, August 21, 2017] [Reference items] | |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
中国、四川(しせん)省中南部の地級市。揚子江(ようすこう)支流沱江(だこう)の流域に位置し、内昆線(内江(ないこう)―昆明(こんめい))が通じる。4市轄区、2県を管轄する(2016年時点)。人口330万(2014)。 中国有数の岩塩の産地で「塩都」の呼称がある。塩の生産は戦国時代末期に始まり、とくに唐代には大規模な拡張が行われ、歴代王朝は重要財源である塩の専売管理機関を置いた。また、唐・宋(そう)代には塩井戸から噴出する天然ガスを、くみ上げた塩水を煮沸する燃料として使い始めた。1939年、二つの塩産地である富順(ふじゅん)県自流井(じりゅうせい)と栄(えい)県貢井(こうせい)とが合併して自貢市が設立された。1953年以後、国営塩務局のもとで現代的採塩場や製塩工場の建設が進められ、今日では塩関連の化学工業も発展し、天然ガスの産地ともなっている。 恐竜の化石が多く発掘されることでも知られ、自貢恐竜博物館は世界的に有名である。同博物館を含む地質公園は、2007年に「自貢ジオパーク」として世界ジオパークに認定された。 [小野菊雄・編集部 2017年8月21日] [参照項目] | |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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