Population migration factor

The factors of population migration are as follows:

Natural environmental factors: climate, fresh water, soil, minerals, natural disasters; Socio-economic factors: transportation and communication, culture and education, marriage and family; Political factors: policy, war, political change. Population migration generally refers to the spatial flow of population between two regions.

This migration usually involves a permanent or long-term change in the residence of the population from the place of emigration to the place of immigration.

The United Nations Multilingual Demography Dictionary gives a generally accepted definition of population migration, that is, the geographical or spatial movement of population between two regions usually involves the change of permanent residence from the place of emigration to the place of immigration. ?

By migration direction:

Internal migration is more frequent and common, and its main forms include:

(1) border reclamation and immigration. Due to the unbalanced economic development between regions, the population in resource-exhausted areas is relatively surplus, and population migration is accompanied by the development of new land.

Since modern times, the development of the western United States, Siberia of the Soviet Union and northeast China has attracted a considerable number of immigrants and lasted for a period of time. Due to different national conditions, reclamation and relocation are sometimes carried out spontaneously, and sometimes planned or military reclamation is adopted.

② The rural population is concentrated in cities. This is a more common and important modern domestic migration. Its essence is the transformation from agricultural population to non-agricultural population, which is closely related to industrial agglomeration and the development of commodity economy.

/kloc-after the industrial revolution in the 0/8th century, cities in western Europe and North America became the locations of big industries, and a large number of rural people poured into cities. After World War II, the wave of migration to cities swept the world.

Developed countries are caused by the reduction of labor required for agricultural modernization, and the development level of rural and urban areas is getting closer and closer; The development of modern cities in developing countries is relatively late, with a large agricultural population and great differences between urban and rural areas, which leads to the increase of unemployment and the deterioration of urban environment.