Abstract
Under the background of rapid urbanization, the study explored the adaptive relationship between urban spatial development and water landscape in different stages in Caidian District, Wuhan in order to reveal the characteristics and influencing factors of water landscape adaptability of urban spatial development and improve urban sustainability aiming at optimizing spatial development and improving water landscape function. Caidian District was seen as a complex adaptive system formed by the interaction between the base layer and the occupation layer. The assessment system of urban spatial development is constructed based on land use data and landscape pattern indices, and the coupling coordination degree model and correlation analysis were used to describe the characteristics of water landscape adaptability of urban spatial development. The results showed that: (1) the adaptation relationship between urban space and water landscape in Caidian District was becoming tense; (2) different spatial systems have unique adaptation cycles to water landscape; (3) the 1000 m buffer is the main area affected by water landscape adaptability of urban spatial development. This study provides a new perspective for the urban adaptability. Finally, improvement suggestions were put forward by three aspects of water landscape structure control, urban development control, and ecological space demarcation.
Highlights
With the acceleration of urbanization in China, the spatial development of the urban area is becoming more and more complex
From 1999–2019, with the acceleration of urbanization and the transformation of the regional industrial structure, in which the proportion of the primary industry decreased from 14.7–11.4%, the secondary industry as the leading industry was adjusted from 51.5–45.5%, and the tertiary industry continued to strengthen from 33.8–43.1% [39,40,41,42,43]; the rising proportion of the secondary industry and the tertiary industry increases the spatial development pressure of the base layer, which leads to the occupation of base layer and fragmentation of the landscape
In the results, coupling coordination degree (CCD) of urban spatial development and water landscape within 1000 m buffer has a great influence on the regional scale change
Summary
With the acceleration of urbanization in China, the spatial development of the urban area is becoming more and more complex. As a mega-city in central China, Wuhan’s outward-oriented urbanization has affected its outlying urban areas. Caidian District is a typical region in Wuhan, where water resources are densely distributed, forming water networks of lakes and rivers. Consider the feature of water resources, a long-standing model of polder agriculture with Jianghan Plain characteristics has been formed. Rapid urban expansion and industrial construction are bringing pressure to bear on the conservation of natural landscape resources and the development of traditional agriculture. A series of changes, such as the modernization of agriculture, the adjustment of industrial structure and the improvement of the livability of urban ecology, will affect the spatial development relationship between the urban development of Caidian District and its water landscape. The sustainability of Caidian District will enter a new stage
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