| Since the 21 st century,China’s population and socio-economic have undergone complex changes,with population development changing from a rapid growth mode to a stable or even decreasing mode,with obvious changes in population age structure,population industry structure,urban-rural structure and other characteristics,and new contradictions in population development beginning to emerge.It is necessary to conduct further research on the coupling relationship and coordinated development of the two,so as to provide a scientific perspective and theoretical basis for the coordinated development of population,economic society and the two.(1)This dissertation takes the provincial area of Shandong Province and the 135 districts and counties under its jurisdiction as the research object,and analyzes the spatial and temporal patterns of population quantity and structure changes,the spatial and temporal patterns of socio-economic development levels,and the matching development types and coupling relationship between the two in three aspects,using the population and socio-economic development data of Shandong Province during 2000-2020,the fifth,sixth and seventh population census data and some satellite remote sensing interpretation data to The analysis and study of population quantity and structure,socio-economic development in the context of high quality,and the construction of a comprehensive evaluation index system to explore the regional differences and spatial heterogeneity of their comprehensive levels,and to calculate the degree of coupling and coordination of the two developments.The main research conclusions drawn from this dissertation are as follows:The population quantity and structure of Shandong Province are facing transformation,the population growth is slowing down,the siphoning effect and polarization trend are obvious;there are unevenness in age structure,the level of aging continues to deepen,the industrial structure of population is shifting from the dominance of primary industry to the dominance of tertiary industry,the growth rate of urbanization begins to slow down,and the quality of population improves obviously.There are obvious regional and district differences in the distribution of population quantity and structure,and the level of population structure in the jurisdictional units is generally better than that in the county units,and the Ludong and Luzhong regions are generally better than other regions.(2)The level of development continues to improve,the total economic volume continues to grow,the degree of economic centralization increases significantly,the intensity and efficiency of land development both rise significantly,and the level of coordination between economy and population also improves;the capacity of innovation and development improves significantly,the urban-rural gap and dual structure decrease,the level of universal benefit increases,the level of ecological development is better than at the beginning of the study period,and the level of economic globalization increases significantly.The differences in development pattern are obvious,the level of education inclusion level of county units is higher than that of jurisdictional units,the innovation level of Luzhong region is higher than that of other regions in the province,and the level of external opening is significantly higher in the coastal units of Luzhong region than that of other regions in the province,but the gap level as a whole is continuously decreasing.(3)The coupling and coordination level of population structure and high-quality development is low,and the coupling degree shows a decreasing trend in the development process,and the coordination level is in a mild disorder for a long time.The level of high quality development is generally faster than the development of demographic structure,and the level of demographic structure of the dominant unit lags behind the level of high quality development.The coupling coordination level is the same regional gap and district gap,and the Ludong and central regions score higher than other regions,but the coordination level is in a state of dissonance,and the jurisdictional units generally score higher than the county units,but the coordination level between the population structure and high-quality development of the county units is higher than that of the jurisdictional units.(4)Shandong Province has opportunities in development such as improved population quality,weakened urban-rural dual structure,and significant improvement in population quality and innovation capacity,but also has problems and development challenges such as aging and continuously increasing dependency ratio,and shrinking population in county units.Based on the above conclusions,development suggestions are made to improve the social security mechanism,promote the development of human capital,strengthen the use of advantages and rationalize the use of resources,enhance the level of opening up to the outside world,and improve the development of the real economy and internal circulation. |