Measurement Of Coupling Coordination Degree And Regional Distribution Of Sustainable Urbanization And Available Land Space In China

With the rapid economic growth in our country,urbanization development has en tered a new stage,high quality has become an inevitable requirement,and sustainable urbanization has become the goal of development.However,due to the continuous tra nsfer of population and industries to cities,the continuous consumption of resources a nd the continuous destruction of ecological environment,it is still a long way to achie ve sustainable urbanization.As the key to urbanization construction,territorial space p lanning is related to the level of urbanization development.Therefore,it is necessary t o grasp the relationship between sustainable urbanization and available territorial spac e,so as to realize the coordination between the two and help urbanization developmen t and territorial space optimization,which is of great significance for realizing sustain able urbanization.In this context,the thesis discusses the coupling coordination relati onship between sustainable urbanization and the available land space,analyzes its spa tial distribution characteristics,and understands regional differences,so as to provide reference for realizing balanced development.The thesis takes 31 provinces in China’s mainland as the research object,selects st atistical data in 2010,2015 and 2020,deeply understands the basic connotation of sust ainable urbanization and territorial space,and constructs an index system of sustainabl e urbanization from the five dimensions of population,space,society,economy and e nvironmental governance ability.The index system of available territorial space was c onstructed from the three dimensions of production,life and ecology according to the "three-life function",and the index was measured by the entropy method.Then the co mprehensive evaluation model and coupling coordination model were used to calculat e the coordinated development level and coupling coordination relationship between s ustainable urbanization and available territorial space in each region.The spatial distri bution characteristics of coordinated development of the two systems are discussed by using spatial correlation analysis.The results are as follows:(1)From 2010 to 2020,the comprehensive developme nt level of sustainable urbanization in all regions increased year by year,while the co mprehensive development level of available land space decreased slightly,and the ove rall development level was generally not high;The development of different regions i s uneven,showing high in the east and low in the west.(2)The coupling level betwee n sustainable urbanization and the available national land space is mostly in the "high coupling stage",and the overall coupling level is high.Only a few northwest areas are in the run-in stage.The effects of sustainable urbanization and the available national l and space are obvious;From the perspective of time,from 2010 to 2020,the coupling level of the two systems is relatively stable,with a slight decline in some areas.From the perspective of space,it is high in the east and low in the west,high in the south an d low in the north.China has been in the stage of rapid urbanization development for a long time,and the ecological consumption and land resources are too large.The wea kening of various functions of national land space has played a certain role in restricti ng the development of urbanization.(3)From 2010 to 2020,the coordinated develop ment level of the two systems as a whole is "on the verge of imbalance".Although the coordinated development situation has been slightly improved,the coordinated devel opment level is still at a relatively weak level,and the development level of available t erritorial space lags behind that of sustainable urbanization.There are great regional d ifferences between sustainable urbanization and coordinated development of available land space in different regions.The coupling coordination level in the eastern coastal areas is generally high,and most of them are in the state of coordination.The couplin g coordination level in the central region is in the middle level,and most of them are o n the verge of dissonance.However,the level of coupling coordination in the western region is generally low,and most of them are in a mild disorder state.(4)The eastern coastal areas,including Shanghai,Jiangsu,Zhejiang and Shandong,all belong to high-high agglomeration,and have an obvious radiating driving effect on the surrounding areas.While Qinghai Province,Gansu Province,Sichuan Province and Yunnan Provin ce and their surrounding areas present low-low agglomeration,Chongqing Municipali ty and Tibet Autonomous Region present high-low agglomeration.Chongqing Munici pality is expected to become the growth pole of the western region.