Tsushima ruins - Tsushima ruins

Japanese: 津島遺跡 - つしまいせき

This extensive Yayoi period ruins spans Izumi-cho, Gakunan-cho, Ezu-cho, and other areas of Okayama City. Located on an alluvial plain on the right bank of the Asahi River, it was known as the "Denryojo Ruins" until World War II. After the war, the center was developed into a park, and parts of the ruins were destroyed to make way for park facilities such as a baseball field and martial arts hall, but due to a growing preservation movement, most of the ruins were left intact. Four excavations in 1961, 1962-63, 1968, and 1969 revealed that the ruins date back to the late Jomon period. The remains of rice paddies from the early Yayoi period in the lower layer were wet, but in the upper layer they were changed to dry fields in the middle Yayoi period, revealing the development of drainage and irrigation technology during this period, revealing the development of rice paddy farming technology in the Yayoi period.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

岡山市いずみ町，学南町，絵図町などにまたがる広範な弥生時代の遺跡。旭川右岸の沖積平野に立地し，第2次世界大戦中までは〈練兵場遺跡〉として知られていた。戦後中心部が公園に造成され，野球場，武道場など公園施設によって遺跡の一部が破壊されたが，保存運動のたかまりで大部分は残された。1961年，62‐63年，68年，69年の4次にわたる発掘で，縄文時代晩期以来の遺跡であることがわかった。下層の弥生時代前期の水田跡は湿田であったが，上層の中期には乾田にかえられ，この間に排水および灌漑技術の進展があることが明らかとなり，弥生時代水田農耕技術の発達を明らかにした。

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

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