Spatial Effect Of Population Density Distribution On Both Sides Of Hu Line

Although the overall development efficiency of China's economy has improved rapidly with the development strategy of the western region,the "the belt and road" initiative,the coordinated development strategy of Beijing,Tianjin and Hebei,and the development strategy of the Yangtze River economic belt,regional development of contradiction has deepened increasingly,which is the most prominent in the “Hu line” on both sides.But population is the decisive factor that affects the regional development difference,because it can not only reflect the internal development situation of a region,but also is the foundation and premise to solve the major social contradictions in the new era and promote the coordinated development of the region.Therefore,it is great practical significance that deeply research the distribution difference of population on both sides of “Hu line”.This paper uses the population density sample data of 2870 counties(counties,districts and cities,referred to as counties)in the sixth population census to study the spatial effect of population distribution on both sides of the “Hu line”.The main contents are discussed as follows: firstly,check whether the population distribution is in the form of agglomeration distribution,because it provides strong support for the population distribution of China in the "east,west and sparse" pattern;Secondly,calculate and test the spatial autocorrelation coefficient and geographic correlation coefficient of population distribution,to prove that the spatial dependence and geographical location of county units are indeed the main reasons affecting population distribution on both sides of the “Hu line”,and based on this,further analyze the spatial characteristics of China's population distribution with the help of LISA charts;Thirdly,further explore the influence of spatial agglomeration effects and geographical location effects on population distribution by constructing a spatial econometric mode,and try to discover other affecting factors.Through correlation analysis and spatial metrology analysis,the main conclusions are:First,through agglomeration index and negative power distribution morphological tests,it is found that population distribution on both sides of the “Hu line” is indeed an agglomeration distribution,not a normal distribution or a random distribution.Second,the population distribution on both sides of the “Hu line” is significant fourth-order spatially adjacent autocorrelation,and remains stable after adding control variables,which indicates that low-density and high-density populations tend to cluster and develop.In addition,from the LISA chart,it can also be seen intuitively that the population distribution in China is "east,west and sparse" pattern,that is,high-density populations are clustered along the eastern coast,and they appear in groups,showing the characteristics of a typical space club;low-density populations is mainly distributed on the left side of the “Hu line”,and it also appears relatively in groups.Third,through parameter estimation and analysis of the spatial Dubin econometric model,it is found that the spatial agglomeration effect is main factor causing the difference in population distribution,followed by the geographical location effect.In addition,urbanization,industrialization,and population transfer will also affect it.Finally,based on the analysis of the full text,the relevant policy implications are proposed: mainly including: developing local industries on the left side of the “Hu line” to improve industrial competitiveness;increasing policy support for the left side;accelerating the pace of urbanization and industrialization on the left.