What are the characteristics of Qiandao Lake?

Qiandao Lake, together with Qiandao Lake in Kingston, Canada and Yangxin Xiandao Lake in Huangshi, Hubei, are called "the three largest Qiandao Lakes in the world". Qiandao Lake is the largest river in China. It is a national first-class water body and is known as "the best water in the world". 1984 12 15 The Zhejiang Geographical Names Committee officially named Xin 'anjiang Reservoir "Qiandao Lake".

The dam is105m high and 462m long. The length of the reservoir is about 150km, and the widest part exceeds 10km. The deepest part exceeds 100 m, with an average water depth of 30.44 m. Under normal water level, the area is about 580 square kilometers.

Hydrological characteristics:

Qiandao Lake is a thermocline from the water surface to below 10 meter, and the water temperature changes back and forth between 10℃ and 30℃. The water temperature changes with depth, with the most significant change in July and August, and the water temperature changes from 26℃ to 10℃ every time the water depth drops.

In June 5438+10, the water temperature changed little. From the water surface to 25 meters, it is 10℃, and from the water depth of 25 meters to the bottom of the lake, it is stagnant water layer. The water temperature remains stable all the year round, the stagnant layer is below 25m in the first half of the year and below 35m in the second half, and the water temperature remains around 10℃ all the year round.

Refer to the above? Baidu encyclopedia-Qiandao lake