Modern population migration in China

The history of China can be divided into three periods: ancient, modern and modern. During the split period of the Warring States, countries migrated to each other, which became the first population migration in the history of China. During the period of the unification of Qin and Han Dynasties, the mainland population migrated to the northwest. During the split period of the Three Kingdoms, the Jin Dynasty and the Southern and Northern Dynasties, the population from the central and northern regions mainly migrated to the Yangtze River basin by men. During the unification of Tang, Song, Yuan, Ming and Qing Dynasties, the mainland mainly moved to China's frontier, and more importantly, it moved to the eastern coast of China, and the north moved to the south. The specific reason remains to be discussed.

Especially after the Ming Dynasty, some people in China went to Nanyang to look for new development opportunities. Moreover, if a plague occurs in any part of China and many people die, the country will let the population of the populous place make up for it. Anyway, it is natural migration of population and population policy migration, but it is mainly natural migration of population. In modern history, the population mainly migrated to the southeast coast, and during the Anti-Japanese War, the population migrated to the western rear. After the founding of People's Republic of China (PRC), there were three population movements. Mainly the First Five-Year Plan (rural to urban migration), the Cultural Revolution (urban to rural migration), and the period of reform and opening up (a large number of people flooded into the eastern coastal cities). This is the history of population mobility! ! ! ! ! ! ! ! ! !

Population migration is closely related to natural environment, national policies, social and economic development, social stability and national political and economic center. In ancient times, Northwest China was the most populous place in China because of its good environment. Due to the change of dynasties, war damage and man-made destruction of the environment, nature deteriorated, leading to population migration. In the history of China, there are three cold weather periods and four warm weather periods. During the cold period, northern minorities invaded the mainland to seek living space. Due to economic development, some resources have been developed, but more people are needed to develop them, so there are more resources in the south than in the north, which leads to population migration. This is the reason for population migration! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

Population migration can reduce the contradiction between local people and land, increase the living space of local people, and also reduce environmental pollution and ecological damage. However, it has lost a lot of human resources, which makes the local human resources not fully utilized and slows down the local social and economic development. But for immigrants, it has brought advanced production technology, effectively promoted local social and economic development, and made full use of local human resources, but it has intensified the damage to the local environment and increased the contradiction between local people. ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

In a word, population migration is a double-edged sword, with both advantages and disadvantages. The choice depends on comprehensive social problems! ! ! ! ! ! ! Haha, I don't have enough experience, please advise me! ! ! ! ! ! ! ! !