The Poyang Lake Water Control Project was studied to understand its impacts and benefits. Researchers used field investigations, data analysis, and mathematical models to analyze water resources, flood control, and the environment of the lake. They looked at how the Three Gorges Project affects the Yangtze River and Poyang Lake. The study found that the project can help manage water resources, control floods, and improve the lake's environment. It also identified key factors like when to close the gate for water storage and how to build fish passages. The research aims to support the planning and design of the Poyang Lake Water Control Project.