Qionghai, the second largest freshwater lake in Sichuan Province, was called Qiongchi in ancient times. It belongs to the early Pleistocene fault lake with a history of about 6.5438+0.8 million years. It looks like a snail, with a length of 1 1.5km from north to south, a width of 5.5km from east to west, a circumference of 35km and a water area of 3 1km2. The average depth of the lake is 14m, and the deepest part is 34m.
Water level1507.14-1509.28m; The fluctuation of water level is small, and the catchment area is about 30 square kilometers. In May, 2002, Luoji Mountain Scenic Spot in Qionghai, Sichuan was approved by the State Council to be included in the fourth batch of national scenic spots.
Qionghai is rich in fish and shrimp and is a famous natural fishing ground. At present, Qionghai has been planned as a wetland park, which is divided into bird watching island, Li Meng water town, Yu Yan Luzhou, Xiboheying and other major areas.
natural environment
Qionghai is a rift lake, which was formed by prehistoric geological tectonic movements. The east, south and west of the lake are surrounded by mountains, and the north is connected with Xichang City. The lakeshore is steep from east to west and gentle from north to south. Especially between the north and the urban area, there is a vast plain of about 50 square kilometers, which constitutes the main producing area of cash crops such as grain and vegetables in the lake basin.
Qionghai is located on the Zemuhe compression-torsion fault zone, starting from the south of Puge County in the south, along the Zemuhe River, crossing Qionghai Lake at the eastern foot of Lushan Mountain, and intersecting with the Anninghe concealed fault along the west of Xichang City, with the trend of southeast-northwest, extending for more than 75 kilometers.
This fault has frequent activities and is most likely to cause earthquakes. Qionghai is located in the valley between Yak Mountain in the west and Luoji Mountain in the southeast. Lushan Mountain, a branch between the two mountains, has become the watershed between Qionghai and Anning River.
Reference to the above content: Baidu Encyclopedia-Qionghai