A study on the effect of language ties in China's population flow network
Using Tencent population migration data in 2019 and Chinese language distribution data,the paper reveals the language ties effect of dialect similarity on Chinese population flow,and further explores its spatiotemporal heterogeneity,traffic mode heterogeneity,and the moderated role of spatial distance on its impact.The results show that:(1)Dialect similarity increases the path formation probability and the relationship strength of the inter-city population flow network in China,and forms the language ties effect in the population flow network.Geographic distance and language distance can be regarded as the explicit and implicit spatial costs of population flow,respectively.(2)There are spatiotemporal heterogeneity and traffic mode heterogeneity in the language ties effect.With each unit increase in dialect similarity,the path formation probability of China's population flow network will increase by 47.7％and 49.5％,respectively,and the flow intensity will increase by 17.1％and 9.9％,respectively,in the Spring Festival travel rush and the daily periods.At the same time,there are positive,negative,and degree differences in the influence of the language ties effect on population flow in different language regions and different modes of transportation,revealing the spatial differences and geographical implications of the language ties effect in the process of affecting China's population flow.(3)The effect of language ties is restricted by the law of spatial decay,and shows differences and complexity in different modes of transportation and periods.The paper expands the current research on the influencing factors of China's population flow from the perspective of economic,social and demographic characteristics,helps to understand the driving mechanism of China's population flow,and has practical significance for social governance and cultural diversity protection in multi-ethnic integrated China.
population flowSpring Festival travel rushChinese dialectslanguage tiescultural tiesChina
NETL
NSTL
万方数据
维普
