What does ecological migration mean?

Population migration in order to protect or repair the special ecological environment in a certain area. Ecological migration refers to the migration of population in order to protect or repair the special ecological environment in a certain area. Population migration to protect the ecological environment or population migration to rebuild their homes in other places due to bad environment. For example, the large-scale migration in the three source areas (Yangtze River, Yellow River and Lancang River) in China is an ecological migration plan to protect water conservation land and prevent ecological degradation. Eco-migration also refers to immigrants who move out the local people as a whole because of the harsh natural environment and the lack of poverty alleviation conditions in the local area. For example, in Mashan area of Guizhou province, due to the continuous loss of water and soil resources, the local people have lost the basic conditions for survival, so they have to move to other places to rebuild their homes.