Excuse me, does the Three Gorges reservoir area refer to the flooded area of the Three Gorges Project or the area after the relocation of immigrants? Can you introduce Baidu Encyclopedia in detail?

The Three Gorges reservoir area is all the administrative districts and counties affected by the backwater area of the main tributaries of the Yangtze River after the completion of the Three Gorges Dam. The submerged area is the water level fluctuation area, and the Three Gorges reservoir area includes the main tributaries, the water level fluctuation area and the reservoir bank (that is, the social residential area with high altitude). In a sense, the flooded area is the same as the relocated area, because it will be flooded. All residents below 175 meters above sea level must be relocated.

It can be understood that a river flows through a place, and only a few towns or villages may be affected, but the whole administrative region and county are counted as reservoir areas.