부산대학교 도서관

As the world continues to urbanize, the eco-environment of many countries is facing great pressure. The pressure of eco-environment is particularly serious in China, where urbanization is developing rapidly. At present, the interaction between urbanization and eco-environment, the characteristics of coupling coordination degree (CCD) and its driving factors are not clear. Correctly understanding the relationship between urbanization and eco-environment and coordinating the relationship between the two are the key to achieve sustainable development. This study took the Harbin-Changchun urban agglomeration (HCUA) from 2000 to 2019 as the research object. Applied “Urban Society - Ecosystem” (USEs) theory to build a set of indicators for urbanization and eco-environment. Using the CCD model, improved environmental Kuznets curve (EKC) model and geographic detector to analyze the relationship between urbanization and eco-environment from the subsystem level. The results indicated that, the urbanization level of HCUA showed a low starting point (less than 0.2) and an increasing trend, with a relatively stable spatial pattern. The leading factor of urbanization has changed from population to social urbanization. The eco-environment quality of HCUA fluctuated frequently and the spatial pattern was unstable. With the development of urbanization, the rising rate of eco-environment slowed down and even showed a downward trend. There is an inverted-U curve between urbanization and eco-environment. Before the inflection point of the curve, the degree of impact on the eco-environment is positively correlated with urbanization, while after the inflection point, it’s negatively correlated. When the inflection point appeared, the urbanization level of each city was basically 0.77 ± 0.05. The more developed the economy, the closer the urbanization level at the inflection point is to 0.77. The CCD kept an upward trend. And its level of northwest and southeast was relatively high and rose rapidly, while the middle development lagged behind. The characteristics of the CCD presented a process of “urbanization lag, mutual detriment, synchronous development, urbanization or eco-environment lag, synchronous development”. Urbanization in line with the carrying capacity of eco-environment can avoid the mutual detriment between urbanization and eco-environment. Economic, social, spatial urbanization and resources were the common factors that affect the CCD. This study analyzed the interaction between urbanization and eco-environment, the CCD between urbanization and eco-environment and its driving factors from the subsystem level. It provides an important reference for realizing sustainable development.