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Kuma River (Japan)
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Kuma River (Japan)
The Kuma River (球磨川, Kuma-gawa) is a river in Kumamoto Prefecture, central Western part of Kyūshū, Japan. It is sometimes referred as Kumagawa River. It is the longest river in Kyushu, with the length of 115 km (71 mi) long and has a drainage area of 1,880 km2 (730 sq mi). The river's estuary was designated part of Japan's 500 Important Wetlands.
It is considered to be one of the three most rapid rivers of Japan (the other two being the Mogami River and the Fuji River). The Kuma River is classified as a Class A river, under the management of the Japanese government.
The Kuma River is a popular tourist spot; about 70,000 people visit every year. Tourists are attracted to Ayu fish or sweetfish which inhabits at the Kuma river and some of its tributaries, where many people especially enjoy “shaku-ayu”. The river is also used for fishing, mainly in June, and for irrigation of nearby rice fields. It then empties into the Yatsushiro Sea at Yatsushiro.
The Kuma river is also known in relation to the Arase dam due to its removal project being the first dam removal in not only Japan but the whole of Asia. In 2020, the flooding of the Kuma River was a major incident in which a number of people from nearby areas were killed or seriously injured.
The Kuma River and its watershed covers nearly 25% of the entire area of Kumamoto Prefecture, and it is the largest river in the prefecture. The Kuma River begins its course from Mount Choushigasa flowing primarily through Kumamoto prefecture, leading to the Yatsushiro Bay. It is the only major and the largest river connected to the Yatsushiro sea. Before flowing into the Yatsushiro sea, where a large tidal flat is formed at its river mouth. Before flowing into the Yatsushiro sea, the Kuma River flows through the Hitoyoshi city, the Kuma village and the Yatsushiro city. The Kuma River flows through the Shimanto terrane and mainly through the Chichibu terrane. The Kuma River has 80 tributaries with its combined total length of 434 km (270 mi).[citation needed] One of the major tributaries of Kuma River is Kawabe River, joining Kuma river at Hitoyoshi city, Kumamoto prefecture. The sediments of Kuma River originate from the Chichibu terrane and the Higo volcanic.
The round shape of the Kuma River basin assists with water and sediment transport function. The upper stream of the Kuma River run through a steep gradient which later changes to medium gradient.[citation needed] It splits into multiple channels before flowing to the Yatsushiro Sea.
The Kuma River is given the nickname of “Abaregawa” (meaning raging river) by the local Japanese people, due to its fast-flowing nature. It is recognized as the three most rapid rivers in Japan, along with the Mogami River in Yamanashi prefecture and Fuji River in Nagano, Yamanashi and Shizuoka prefecture.
Other major tributaries of the Kuma River include: Kudagiri River, Yoshio River, Imo River (Japan), Mae River, Mune River, Hatomune River, and Ogawauchi River.
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Kuma River (Japan)
The Kuma River (球磨川, Kuma-gawa) is a river in Kumamoto Prefecture, central Western part of Kyūshū, Japan. It is sometimes referred as Kumagawa River. It is the longest river in Kyushu, with the length of 115 km (71 mi) long and has a drainage area of 1,880 km2 (730 sq mi). The river's estuary was designated part of Japan's 500 Important Wetlands.
It is considered to be one of the three most rapid rivers of Japan (the other two being the Mogami River and the Fuji River). The Kuma River is classified as a Class A river, under the management of the Japanese government.
The Kuma River is a popular tourist spot; about 70,000 people visit every year. Tourists are attracted to Ayu fish or sweetfish which inhabits at the Kuma river and some of its tributaries, where many people especially enjoy “shaku-ayu”. The river is also used for fishing, mainly in June, and for irrigation of nearby rice fields. It then empties into the Yatsushiro Sea at Yatsushiro.
The Kuma river is also known in relation to the Arase dam due to its removal project being the first dam removal in not only Japan but the whole of Asia. In 2020, the flooding of the Kuma River was a major incident in which a number of people from nearby areas were killed or seriously injured.
The Kuma River and its watershed covers nearly 25% of the entire area of Kumamoto Prefecture, and it is the largest river in the prefecture. The Kuma River begins its course from Mount Choushigasa flowing primarily through Kumamoto prefecture, leading to the Yatsushiro Bay. It is the only major and the largest river connected to the Yatsushiro sea. Before flowing into the Yatsushiro sea, where a large tidal flat is formed at its river mouth. Before flowing into the Yatsushiro sea, the Kuma River flows through the Hitoyoshi city, the Kuma village and the Yatsushiro city. The Kuma River flows through the Shimanto terrane and mainly through the Chichibu terrane. The Kuma River has 80 tributaries with its combined total length of 434 km (270 mi).[citation needed] One of the major tributaries of Kuma River is Kawabe River, joining Kuma river at Hitoyoshi city, Kumamoto prefecture. The sediments of Kuma River originate from the Chichibu terrane and the Higo volcanic.
The round shape of the Kuma River basin assists with water and sediment transport function. The upper stream of the Kuma River run through a steep gradient which later changes to medium gradient.[citation needed] It splits into multiple channels before flowing to the Yatsushiro Sea.
The Kuma River is given the nickname of “Abaregawa” (meaning raging river) by the local Japanese people, due to its fast-flowing nature. It is recognized as the three most rapid rivers in Japan, along with the Mogami River in Yamanashi prefecture and Fuji River in Nagano, Yamanashi and Shizuoka prefecture.
Other major tributaries of the Kuma River include: Kudagiri River, Yoshio River, Imo River (Japan), Mae River, Mune River, Hatomune River, and Ogawauchi River.
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