Research Of Sustainable Development Level In China Under The New Development Concepts

With the rapid development of global industrialization and urbanization,people have created huge material wealth through the use and transformation of nature,but also produced a large number of pollutants and greenhouse gases.Global energy,climate change and environmental problems are becoming more and more prominent.How to coordinate the relationship among human,economy,society,resources and environment has become a common challenge all over the world.In addition,the world economy is in the process of great adjustment and transformation,the new trend of change has emerged slowly,the old economic growth model is difficult to maintain,it has become the consensus of all mankind to explore how to achieve sustainable development.According to the connotation of "five concepts for development ",this paper establishes the evaluation index system of sustainable development,which includes five subsystems: "innovation,coordination,green,opening and sharing".The comprehensive value of sustainable development level of provinces and cities in China is obtained by using the comprehensive evaluation model of sustainable development.On the basis of this,the dynamic evolution of sustainable development level is analyzed by using kernel density function decomposition method and Gini coefficient.The spatial and temporal evolution of sustainable development level is analyzed with the help of spatial Markov chain method.The main conclusions are as follows:(1)The level of sustainable development of provinces and cities in China has been on the rise trend during the period of study,but it is at a lower level and still has a great space for development.In general,the level of sustainable development of provinces and cities in China is gradually decreasing in the in the eastern,northeast,central and western regions of China.The gap between the central and western regions and the eastern is large,and the differences between provinces and cities in the central and western regions are small.Specific to each subsystem,the development is also very different.(2)According to the kernel density function decomposition,the sustainable development level of provinces and cities in China presents irregular multi-peak distribution.In the differential decomposition,the difference is dominated by the mean affect,the residual effect takes the second place,and the variance effect is the least.In the differential decomposition,the mean effect is dominant,the residual effect is the second,the variance effect is the least,and the change direction of the mean effect and residual effect is the same as that of the total effect of the annual difference.The variance effect changes in the opposite direction,and the existence of variance effect weakens the mean effect and residual effect.The Gini coefficient of the sustainable development level shows the state of frequent fluctuation,and the decrease of the Gini coefficient is more obvious after 2008.(3)It is revealed that there is a certain relationship between the dynamic evolution of the regional sustainable development level and the regional background.The change of sustainable development level shows the phenomenon of "club convergence",and both the regions with low and high sustainable development level are steadily evolving along with their original types;the variation of sustainable development level is affected by regional background environment.Generally,if a region is close to regions with high sustainable development level,the probability of its upward shift increases,and conversely,the probability decreases;the convergence of sustainable development level mainly appears in the eastern and western regions.