Toyohashi Plain - Toyohashi Heiya

A plain in the southeastern part of Aichi Prefecture, downstream of the Toyokawa River, facing Mikawa Bay. It is also called the East Mikawa Plain. With an area of ​​772 square kilometers, it spans five cities: Toyohashi, Gamagori, Toyokawa, Shinshiro, and Tahara. It is an important plain in the prefecture with a thriving economy and culture, along with the Owari Plain and Okazaki Plain, and is said to be an advanced agricultural region. The Toyokawa River runs through the center of the plain, and river terraces have been formed along the coast, with Takashibara and Tenpakubara on the terraces. The downstream is the Toyokawa floodplain, an alluvial delta, and the area near the mouth of the river facing Mikawa Bay (Atsumi Bay) is shallow, and reclaimed land has been developed. The central city, Toyohashi, was formerly the castle town of the Yoshida clan, the former Yoshida post station on the Tokaido road, and a base for shipping on Mikawa Bay and the Toyokawa River. However, with the development of Mikawa Port and the coastal industrial zone, it is now transforming into a city where agriculture and industry coexist.

[Gohei Ito]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

愛知県南東部、豊川(とよがわ)下流の平野で、三河湾に臨む。東三河平野ともよばれる。面積772平方キロメートルで、豊橋、蒲郡(がまごおり)、豊川(とよかわ)、新城(しんしろ)、田原(たはら)の5市にまたがる。県内では尾張(おわり)平野、岡崎平野と並ぶ経済、文化の盛んな重要平野で、先進的農業地域といわれる。豊川が平野の中央を貫流し、沿岸は河岸段丘が形成され、段丘上に高師(たかし)原、天伯(てんぱく)原がある。下流は豊川氾濫(はんらん)原で沖積デルタ、三河湾（渥美湾）に臨む河口付近は遠浅で、埋立地が造成されている。中心都市豊橋市は、旧吉田藩の城下町、旧東海道五十三次吉田宿、三河湾・豊川の舟運の拠点であったが、その後造成の三河港、臨海工業地帯によって農工共存の都市へと変わりつつある。

［伊藤郷平］

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