Hydropower migration phenomenon

(1) The Jinsha River flows through areas with high mountains and deep valleys, short dams for hydropower development, small submerged area and small number of immigrants;

(2) The terrain is complex, the natural environment is harsh, the population is small, and the number of immigrants is small;

(3) People live far away from the river and the terrain is relatively flat, so it is not easy to flood most residential areas after the reservoir is filled;