Impact Analysis of Poyang Lake after Three Gorges Project´s Running by Using ANFIS

Three Gorges Project is the world´s largest hydropower station, and it is also China´s largest hydraulic project. It has the very important role of flood control, generation and shipping. Poyang Lake is the largest freshwater lake of China. It has the natural role of regulating Yangtze River´s water. It also provides a very good natural condition for the development of regional economic. This paper establishes the relationship between Yichang´s water level, Five River´s water level and Hukou´s water level by using ANFIS. It identifies the influence degree of Hukou water level after the running of Three Gorges. The result shows that after the running of Three Gorges, the water level in flood season of Poyang Lake is increased, so Poyang Lake´s flood control pressure is increased. And it decreases the water level of Poyang Lake´s dry season; this brings great influence to the development and utilization of Poyang Lake´s water resource.