Abstract
During the process of urbanization, many green spaces are fragmented for other uses. The key problems for researchers and planners are reducing the fragmentation of green spaces, constructing urban ecological networks, and maintaining sustainable environments to cope with the rapid urbanization process. This paper analyzes Fuzhou, China as a case study of the effects of urbanization, and reviews three epochs in Fuzhou: 2000, 2010, and 2021. First, the integration degree of landscape pattern index and spatial syntactic attribute value is used to quantify the urbanization situation of Fuzhou and the degree of green space fragmentation in the process of urbanization. Second, it adopts the network analysis method to construct an urban ecological network featuring “one city and two rings”. Finally, urban green spaces are assessed by the corridor structure analysis, and the improvement of the urban green space ecological network is quantitatively evaluated by comparing the green space ecological network with the green space planning system. The results show that the urbanization of Fuzhou city center is apparent and the fragmentation of urban green space is a serious issue from 2000 to 2021. The green space planning in Fuzhou is ineffective in improving the existing green space. According to the results, the street integration of space syntax aptly reflects the process of urbanization. In conclusion, the planned ecological network increases the shape complexity of green patches and landscape connectivity and reduces landscape fragmentation, thus improving the urban ecological environment quality and facilitating the sustainability of urban green spaces.
Highlights
Urbanization is a complex process that encompasses the urban population, the expansion of the urban scale, and a series of economic and social changes
Urban green spaces are assessed by the corridor structure analysis, and the improvement of the urban green space ecological network is quantitatively evaluated by comparing the green space ecological network with the green space planning system
The results show that the simplification oFfigwuroeod7lsahnodw, fsatrhmelaenvdol,uatniodnwofattehrebLoSdIyvashluaepseoafnudrbtahne ginrecerenaspe aocfecionmthpelecxeintytroafl gurrebeannlarnedascoafpFeuszhhaopueCariteyaflrlocmaus2e0d00bytoh2u0m21a.nDfaucrtionrgs.this period, the Landscape Shape Index (LSI) values of the urban green space were distributed in a patchy pattern
Summary
Urbanization is a complex process that encompasses the urban population, the expansion of the urban scale, and a series of economic and social changes. As the provincial capital of Fujian, Fuzhou City has seen rapid development in recent years, including greatly improved infrastructure, green space protection is ignored, which leads to the reduction and fragmentation of urban green space [24]. A group of scholars studying the urban and rural landscape planning in Nuoro, Italy, suggested an optimized ecological network for urban planning to meet the requirements of a good urban ecosystem [26]. They noted the important role of network models in protecting and improving species diversity, preventing landscape fragmentation, and establishing links between isolated ecological patches. Jin’an District and Taijiang District in the central city, have a single form of green space, and the system needs improvement
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