Kasei

Japanese: 火井 - かせい

…Each dynasty imposed a salt tax and established a salt monopoly. In addition to salt wells, natural gas was extracted from gas wells called “fire wells” and used to refine salt. [Shoichi Komai]. …

From Sichuan Province

...It was originally named after a well from which salt water naturally flows, called a "self-flowing well," and later became a place name. In addition, while using salt wells, a "fire well," called natural gas, was discovered and used as fuel for refining salt. Song Yingxing of the Ming Dynasty wrote in "The Divine Art of War" that the fire well is "a truly strange thing, using the power of fire without the appearance of fire.

From the Yangtze River

…During this time, at the end of the Warring States period, salt wells were dug in Ziliujing (Zigong) in the Tuojiang River basin, and people began to extract "well salt" by boiling down the natural brine. In addition, during the Shu period of the Three Kingdoms, "fire wells," or natural gas wells, were also used. During the Han and Three Kingdoms periods, the Han people began to move to Sichuan and the lower reaches of the Yangtze River, and the Wu state of the Three Kingdoms established its capital in Jianye, or Nanjing, and promoted the development of the lower reaches of the Yangtze River. …

*Some of the terminology explanations that mention "Hii" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…各王朝は塩税を課して塩の専売をおこなった。また，塩井とともに〈火井〉とよぶガス井から天然ガスを採取し，塩の精製に利用してきた。【駒井正一】。…

【四川[省]】より

…最初，〈自流井〉すなわち塩水が自然に流れでる井戸からとられたもので，のち，地名となった。また，塩井を利用するあいだに〈火井〉すなわち天然ガスも発見され，井塩精製用の燃料として使用されてきた。明代の宋応星は《天工開物》で火井のことを〈実に奇妙なもので，火の姿がないのに火の力を使う。…

【長江】より

…この間，戦国時代末には沱江流域の自流井(自貢)では塩井が掘られ，天然鹹水（かんすい）を煮つめ〈井塩〉をとりはじめている。また，三国の蜀代には〈火井〉すなわち天然ガス井も利用されている。漢･三国時代には漢族が四川や長江下流に移動しはじめ，三国の呉は建業すなわち南京に国都をおき，長江下流部の開発をすすめた。…

※「火井」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典第２版について | 情報

<<: Kasai

>>: Skein - Skein