What are the main reasons for the economic development in the south of the Yangtze River and what are its effects?

Reason: Northerners moved south, which brought a lot of labor force to the south of the Yangtze River and advanced production tools and technologies from the Central Plains. Natural conditions are superior, and wars are few and stable. Rulers attach great importance to economic development, and immigrants from the south work with local people.

Impact: The rapid economic development in the south and the balance between the north and the south have laid the foundation for the economic center of gravity to move south.

1. Economic development zones can be divided into national development zones, provincial development zones and municipal development zones according to their scales and grades. According to the data of China Merchants Network, the state will delimit appropriate areas, carry out necessary infrastructure construction and set up one or two industries. At the same time, it is to give corresponding support and preferential treatment to make the regional economy develop rapidly.

Two: economic development zone is a general term. It is a general term for economic and technological development zones, high-tech industrial parks, high-tech development zones and various industrial parks (such as agricultural development zones, chemical industrial parks, automobile industrial parks, etc.). ), also known as development zone. According to the scale level of development zones, they can be divided into national development zones, provincial development zones and municipal development zones.

Third, the establishment of economic development zones, some of which are to promote scientific research and develop high-tech industries, is also called technology development zones. Some are to introduce foreign capital and expand exports, so such economic development zones are often compared with export processing zones. Economic development zone is an important carrier for the country to attract foreign direct investment and has made great contributions to China's economic development since the reform and opening up.

4. According to the national industrial policies on foreign investment, the Development Zone gives preferential policies such as tax relief (such as two exemptions and three reductions of enterprise income tax) and industrial land concessions to encourage foreign direct investment enterprises to attract all kinds of funds and entities to invest in setting up factories and companies. Generally, this kind of planning place is relatively large, with complete supporting facilities, which can drive the local economy to take off after attracting investment. Suzhou Industrial Park and Tianjin Development Zone jointly developed by the governments of China and Singapore are both successful examples.