Abstract
The interaction between urbanization and the eco-environment is usually viewed as an effect–feedback framework. Its coupling system is composed of urbanization and eco-environment subsystems. In this paper, the coupling degree (CD) and the coupling coordinated degree (CCD) are used to reflect the coupling interaction and coupling coordination between the urbanization subsystem and the eco-environment subsystem. Based on the dynamic relative quantities of urbanization and eco-environment data in the Pearl River Delta, CD and CCD values were calculated, and the spatiotemporal evolution trend of coordination was analyzed. The results show that (1) from 2000 to 2015, the nine cities in the Pearl River Delta had high CD values and CCD values. Though they had different performances in different periods, they were all in a coordinated class, including good coordination (GC), moderate coordination (MC), and bare coordination (BC). (2) In terms of temporal evolution, the coupling coordination between urbanization and the eco-environment in the entire Pearl River Delta greatly improved. (3) From the perspective of spatial distribution, the coupling coordination of the central region was higher than that of the peripheral regions, and that of the west bank of the Pearl River was higher than that of the east bank of the Pearl River. These results can help local policy makers enact appropriate measures for sustainable development.
Highlights
Rapid urbanization, one of the most important socioeconomic phenomena in the contemporary world, has profoundly impacted the eco-environment
The central region is higher than the peripheral regions, and the west bank of the Pearl River is higher than the east bank of the Pearl River
This study comprehensively used the coupling degree and coupling coordinated degree models to quantitatively evaluate the coupling coordination between urbanization and the eco-environment. It is different from most previous studies in that it innovatively used all incremental indicators in the indicator system, which is different from the current status quo values used in the past
Summary
One of the most important socioeconomic phenomena in the contemporary world, has profoundly impacted the eco-environment. Urbanization is a process of social and economic transformation. The eco-environment refers to the integration of natural factors that affect human survival and development, including the integration of other environmental factors, such as water, soil, atmosphere, resources, energy, and other organisms [3]. Urbanization has led to rapid population growth and rapid economic development, resulting in the exhaustion of resources and the consumption of large amounts of energy. This has led to unreasonable land use and overburdened land
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