Kawauchi Plain - Sendai Heiya

Japanese: 川内平野 - せんだいへいや
Kawauchi Plain - Sendai Heiya

An alluvial plain located in the downstream area of ​​the Kawauchi River in the west of Kagoshima Prefecture. Satsuma-Sendai City occupies the area. It is a low-lying basin surrounded by relatively low mountain ranges, with the Satsuma-Sendai city area at its center. The surrounding mountains are mainly composed of Tertiary andesite (pyroxene andesite, hornblende andesite, etc.), but there are also highly dissected shirasu plateaus on the edges. There are small areas of Palaeozoic mountain massifs on both banks of the Kawauchi River estuary. The bottom of the basin is low in elevation, and there are many small tributaries flowing in from the surrounding mountains, making it a frequent flood-prone area. Rice fields are widely distributed outside the city. It has a long history of development, with the remains of the Satsuma Kokubunji Temple (a nationally designated historic site) and the remains of the jori system. Currently, it serves as a base for electricity supply from the Tsuruta Dam upstream, the thermal power plant on the right bank of the river mouth, and the nuclear power plant on the left bank.

[Kimihiko Tsukada]

[References] | Satsumasendai (city) | Shirasu Plateau | Kawauchi River

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

鹿児島県西部の川内川下流域に位置する沖積平野。薩摩川内市(さつませんだいし)が占める。周囲を比較的低い山地に囲まれ、盆地状の低平地であって、中心部に薩摩川内市街地が形成されている。周辺山地はおもに第三紀の安山岩類(輝石(きせき)安山岩、角閃石(かくせんせき)安山岩など)からなるが、それら縁辺には開析の進んだシラス台地もみられる。川内川河口の両岸にはごく一部に古生層の山塊がある。盆地底にあたる部分は地盤高度が低く、周囲の山地から流入する小支流も多いため水害常襲地となっていた。市外地には水田が広く分布する。開発の歴史は古く、薩摩国分寺跡(国指定史跡)や条里制遺構などもある。現在、上流の鶴田ダム、河口右岸の火力発電所や左岸の原子力発電所などによる電力供給の拠点ともなっている。

[塚田公彦]

[参照項目] | 薩摩川内(市) | シラス台地 | 川内川

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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