From the Western Han Dynasty to the Tang Dynasty, a large number of people migrated from northern China. What does this mean?

In the Western Han Dynasty, there were 2,470,685 households in southern China, accounting for 19.8% of the national population, and 9,985,785 households in northern China, accounting for 80.2% of the national population. The main reason is that the north is the birthplace of Chinese civilization, which was developed earlier. At that time, the political and economic centers were all in the north. Later, the population moved frequently, especially in the Yangtze River basin and the Pearl River basin in the south. The economic development and material richness in the south attracted the population to move in. The main reasons of population migration in China's history are migration, war and natural disasters.

Reasons for the rapid development of Jiangnan economy in Wei, Jin, Southern and Northern Dynasties;

1. The war in the northern region caused a large number of northerners to move south. After the end of the Western Jin Dynasty, millions of northerners moved south, enriching the labor force in Jiangnan and bringing advanced production technology.

2. The integration of southern minorities and Han nationality has accelerated the development of local economy.

3. Some rulers of the southern regime have implemented policies conducive to agricultural development, such as persuading farmers to plant mulberry, rewarding agricultural weaving, appeasing refugees, and building water conservancy projects.

4. Because the wars in Wei, Jin, Southern and Northern Dynasties were concentrated in the north, the wars in the south were mostly wars within the ruling class, which maintained a stable social environment for economic development.

The superior geographical position and natural environment in the south contain great potential for developing agricultural economy.

6. The southward movement of the political center has an impact on the southward movement of the economic center. "Yongjia Du Nan" is not only the southward migration of northern people, but also the southward migration of northern gentry and even the Jin government, and it also brings a large number of talents to the development of Jiangnan.

7. With the efforts of the people, the refugee groups in the north should be concentrated in Jingzhou and Yangzhou, followed by Minjiang River Basin and Lingnan. In order to rebuild their homes and seek a stable life, they have a strong desire for economic development.