Why build a dam in the Three Gorges, but not in other parts of the Yangtze River?

After the completion of the Three Gorges Dam, a 600-kilometer giant reservoir will be formed, which will become a rare new landscape in the world. The Three Gorges Dam will store water in stages. 1997165438+1After the closure of the Yangtze River on October 8, the water level rose to 10-75 meters, and all the landscapes of the Three Gorges were not affected. In June 2003, after the completion of the second phase of the project, the water level rose to 1.35 meters. Except that Zhangfei Temple was flooded and will be relocated, the Three Gorges Scenic Area was basically preserved. In 2006, the water level of the Yangtze River rose to156m.

Only the gate of Quyuan Temple is flooded and will be rebuilt; After the completion of the Three Gorges Project in 2009, the water level will rise to1.75m.. By then, a few stone carvings will be relocated and the Shi Baozhai Mountain Gate will be submerged1.5m.. The dam enclosure is currently being planned. By then, the echo of Shi Baozhai will become a lonely peak surrounded by water, which is more unique and legendary. The majestic features of other scenic spots remain unchanged. With the formation of artificial lakes in mountainous areas along the Yangtze River and the improvement of navigation conditions, many scenic spots scattered around the Three Gorges will be easier to reach, such as the Little Three Gorges and Shennongxi fairyland promenade.

1994 65438+February 14, the Three Gorges Dam project, the largest hydropower project in the world, officially started. It is located in Sandouping, Yichang City, Hubei Province in the middle of Xiling Gorge, 38 kilometers away from the downstream Gezhouba Water Control Project. The Three Gorges Dam project consists of two parts: the main project and the diversion project, with a total investment of 95.46 billion yuan (calculated at the price of 1993 at the end of May), including 50.09 billion yuan for the hub project; 11300,000 resettlement fee is 30.07 billion yuan; The power transmission and transformation project is 654.38+05.3 billion yuan. The total duration of the project is 1993 to 2009 *** 17 years, which is divided into three phases and is scheduled to be completed in 2009.