Located in Ryotsu Bay, the gateway to Sado Island in Niigata Prefecture, this is the prefecture's largest lake. It has a circumference of 15 km, an area of 4.8 square km, and a maximum depth of 9 meters, slightly to the south of the lake. It is a relict lake with a sandbar blocking its front, and was once a semi-freshwater lake. In 1904 (Meiji 37), a dig was made in the center of the sandbar to create a shipping channel to Ryotsu Bay, and seawater began to flow into the lake, making it a saltwater lake today. Oyster farming is thriving on the lake's surface. The view of Mt. Kinpoku reflected in the evening calm is magnificent, and the area has been designated as part of the Sado-Yahiko-Yoneyama Quasi-National Park. Modern hotels line the lakeshore, and Sado Airport is located on the western shore terrace. [Hisao Yamazaki] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
新潟県佐渡島(さどがしま)の玄関口、両津湾(りょうつわん)にある本県最大の湖。周囲15キロメートル、面積4.8平方キロメートル、最深部はやや湖南にあり9メートル。前面を砂州でふさがれた海跡湖で、かつては半淡水湖であった。1904年(明治37)砂州の中央を掘り割って両津湾に出る船路をつくったところ、海水が流れ込んで、いまは塩水湖になっている。湖面はカキの養殖が盛んである。夕凪(ゆうなぎ)に金北(きんぽく)山の山影を映す景色がすばらしく、佐渡弥彦米山国定公園(さどやひこよねやまこくていこうえん)地区に指定されている。湖岸には近代ホテルが立ち並び、西岸段丘上には佐渡空港もある。 [山崎久雄] 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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