China's Interprovincial Migration Network Evolution Based on Census Data
The issue of population migration in China has long always of widespread concern and the study of its development patterns is of great importance to China's economic and social development.Therefore,using the fifth,sixth,and seventh national census data,the unweighted directed network and weighted directed network are constructed to explore the basic topological properties of the net-work and implement node importance and cohesive subgroups analysis.The results show that:mi-gration relationships between provinces are getting closer and closer,and the phenomenon of"small worlds"in China's interprovincial migration networks is on the rise;the population attraction of the eastern region continues to be strong.However,in recent years,population migration in Beijing and other megacities has slowed down,and Guangdong province effectively controls population migra-tion.The northeastern regions are facing the increasingly severe predicament of population loss.In recent years,the phenomenon of population backflow has become more pronounced in the western and central regions.Moreover,the level of economic development in various regions of China has tended.After 2015,migration relationships between the subgroups have increased dramatically.
social network analysispopulation migrationnetwork datapopulation census