High school geography questions! Help! d

Ecological migration refers to population migration (emigration, of course) caused by the deterioration of ecological environment. The emigration of population reduces the pressure on land and is beneficial to the prevention and control of soil erosion;

Adjusting the industrial structure, for example, the original focus was on planting, and now the five major industries of agriculture, forestry, animal husbandry and fishery are developed, or the cultivation of citrus is changed from rice, which is called industrial structure adjustment. Small proportion of planting, high proportion of fruit or grass, and high vegetation coverage rate are of course beneficial to the prevention and control of soil erosion.