A mountain range stretching from northwestern Hyogo Prefecture to Yamaguchi Prefecture, sometimes referring to just the Sekiryo Mountains, and sometimes including the surrounding Kibi Plateau and Iwami Plateau. The Sekiryo Mountains are 1,000-1,300 meters above sea level, and generally gentle, with the highest point being Mt. Hyonosen at 1,510 meters. At the mountaintops there is a high flat surface called Noro. It forms the watershed between San'in and San'yo, but only the Gonokawa River system crosses the Chugoku Mountains and flows into the Sea of Japan. The area west of the part where the Gonokawa River crosses is called the Kanmuriyama Mountains, and the area east is called the East Chugoku Mountains. The mountainous backbone is biased towards the north, and the Sendai, Tenjin, Hino, and Kobe rivers that flow towards the Sea of Japan run along steep slopes, and in many places the mountains approach the Sea of Japan. The Yoshii, Asahi, and Ota rivers that flow down to the Seto Inland Sea form wide alluvial plains in their downstream. The Kibi Plateau and Iwami Plateau are elevated peneplains at an elevation of 400 to 500 meters, with many intermountain basins. In the Chugoku Mountains, iron smelting has been practiced since ancient times, using iron sand from weathered granite, and many of the villages in the mountains are associated with this method. In addition, Wagyu cattle breeding is popular on the flat areas, and rice paddy cultivation is progressing well despite the mountainous area. [Kitagawa Kenji] [Reference item] |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
兵庫県北西部から山口県まで広がる山地で、脊梁(せきりょう)山地のみをさす場合と、その周辺の吉備(きび)高原や石見(いわみ)高原を含む場合とがある。脊梁山地は標高1000~1300メートル、全般的になだらかで、最高点は氷ノ山(ひょうのせん)の1510メートル。山頂にはのろとよばれる高位平坦(へいたん)面がみられる。山陰、山陽の分水界をなすが、江の川(ごうのかわ)水系だけは中国山地を横断して日本海に注いでいる。江の川が横断する部分から西を冠山山地(かんむりやまさんち)、東を東中国山地ともいう。脊梁山地は北に偏っており、日本海側に流れる千代(せんだい)川、天神(てんじん)川、日野川、神戸(かんど)川などは急傾斜地を流れ、山地が日本海に迫っている地も多い。瀬戸内海へ流下する吉井川、旭(あさひ)川、太田川などは下流に広い沖積平野を形成する。 吉備高原、石見高原は標高400~500メートル、隆起準平原で多くの山間盆地がみられる。中国山地では古くから風化花崗(かこう)岩中の砂鉄を利用するたたら製鉄が行われ、山地中の集落にはたたら製鉄に起因する集落が多い。また平坦面では和牛飼育が盛んであり、山地のわりには水田化も進んでいる。 [北川建次] [参照項目] |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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