Abstract
Urban agglomeration is the core area of not only regional economic development and urbanization but also human–land contradiction. Based on the population–economy–society–spatial model and the pressure–state–response model, this study develops an evaluation index system for the urbanization and eco-environment of 13 urban agglomerations in China. The urbanization index and eco-environment index are determined using the coefficient of variation method. The coupled coordination of the two indices is measured with the coupled coordination model, and the influence of the indicator factors is calculated with a geographical detector. The results reveal the following: (1) The urbanization indices of the 13 urban agglomerations in China increase year by year, and the spatial distribution pattern is high in the east and low in the west. (2) The eco-environment index shows an “S-shaped” variation trend, and the spatial difference between urban agglomerations gradually decreases. (3) The coupled coordination is mainly characterized as a mild imbalance, and the spatial distribution pattern is “balance in the east and imbalance in the west”. (4) The coupled coordination degree between urbanization and eco-environment is affected by many factors. Among such factors, economic urbanization, social urbanization, spatial urbanization, and eco-environment response are the main controlling factors. The impact of population urbanization, eco-environment pressure, and eco-environment state presents a gradual increase.
Highlights
Since the 20th century, urbanization has played an important role in promoting global economic development and improving the living quality of human beings, so it has become an important symbol by to measure the level of social and economic development of a country [1,2]
(3) The coupled coordination is mainly characterized as a mild imbalance, and the spatial distribution pattern is “balance in the east and imbalance in the west”. (4) The coupled coordination degree between urbanization and eco-environment is affected by many factors
Compared with the shortcomings of the existing research, this paper improved the following two aspects: On the one hand, 13 Chinese urban agglomerations are selected as the research objects, and a comparative study on the urbanization level, eco-environment level, and coupled coordination degree is conducted from the perspective of time and space, so as to better grasp the development differences between urban agglomerations
Summary
Since the 20th century, urbanization has played an important role in promoting global economic development and improving the living quality of human beings, so it has become an important symbol by to measure the level of social and economic development of a country [1,2]. The rapid growth of urban construction land area and energy consumption has led to a rapid increase in the eco-environment pressure, which has seriously threatened the regional ecological security. The 18th and 19th National Congress of the Communist Party of China attached great importance to the development strategy of “the construction of ecological civilization”, and research on the coupled coordination of urbanization and eco-environment has become an important component of China’s ecological civilization construction. This study focuses on the key points of national policies, chooses 13 main urban agglomerations in China as the research areas, analyses the temporal and spatial distribution rules of the coupling and coupled coordination and eco-environment, and reveals the factors influencing the spatial-temporal differentiation. The objective is to provide a basis for the decisions on urbanization construction and the eco-environment protection of China’s new urban agglomerations, as well as to realize regional sustainable development
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