The Irihama salt fields were built in Takehara, Aki Province (present-day Takehara City, Hiroshima Prefecture) during the Edo period. Part of the reclaimed Oshingai area was used for salt fields from 1646, and engineers were invited from Ako to create a trial salt field. Construction continued in 1650 and 1652, and the salt field area reached 60 cho 9 tan. New salt fields were built in 1725, 1780, and 1833, and by the beginning of the 18th century, the field produced 250,000 to 280,000 bales (5 to bales), and the silver it earned from sales exceeded 1,000 kan. During this time, a salt field riot broke out in 1759, led by upper-class salt workers, who demanded a wage increase, and in 1827, lower-class salt workers planned to demand a wage increase by abandoning salt burning for 20 ken. The introduction of coal-fired firewood was delayed due to opposition from villages that had been supplying firewood, but was fully implemented in 1818. This local technology was introduced to the provinces of Bingo and Iyo when salt fields were developed. Source : Heibonsha Encyclopedia About MyPedia Information |
江戸時代,安芸(あき)国竹原(現広島県竹原市)に造られた入浜(いりはま)塩田。1646年から干拓された大新開(おおしんがい)の一部が塩田に充てられ,赤穂(あこう)から技術者を招いて塩浜を試作した。1650年・1652年と造成を続け,塩田面積は60町9反余にのぼった。さらに1725年・1780年・1833年と新浜が造られていき,18世紀初めには25〜28万俵(5斗(と)俵)を産し,販売代銀は1000貫を超えた。この間,1759年上層浜子(はまこ)の指導で賃上げを要求した塩田騒動が起き,1827年には下層浜子が20間にわたる塩焼き放棄をもって賃上げ要求を計画している。薪などを供給していた諸村の反対で遅れていた石炭焚きの導入は1818年に全面的に切り替えられた。当地の技術は備後(びんご)国・伊予(いよ)国などの塩田開発に際して導入された。
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