Abstract
The undergoing trend and development towards urbanization and the consequences of socio-ecological and climate change are increasing the pressure on cities worldwide. The planning of urban green and blue spaces is essential for sustainable urban development, especially for the conservation of urban ecosystems in fast-growing cities. In this context, the spatial-explicit and ecological connectivity analyses of urban green infrastructure are helpful tools for planning and the evaluation of spatial patterns and their changes for the sustainability of urban development. The aim of this study is to understand the influence of urban expansion on the urban green corridors. In this paper, we present an analysis of ecological networks for green infrastructure planning at the city level, making the most out of morphological spatial pattern analysis (MSPA) techniques and social-ecological analysis methods. The findings reveal the changes of spatial patterns of urban green and blue areas in Gaoyou city and disclose its ecological corridors and connectivity from 1990 to 2012. The urban green corridors analysis method proposed here can be used in other cities and allow for the production of spatially detailed urban ecological connectivity assessment and monitoring. Recommendations to enhance and conserve green corridors and ecological networks such as reserving networks in the east of the example city have been concluded. The conclusion obtained using our spatial analysis method can be used in other municipalities to serve as spatial-explicit tools for urban green spaces and land use planning.
Highlights
Cities, especially those in rapidly growing processes of urbanization in Asia [1], are increasingly the spotlights of a large number of classical and emerging disciplines that study social-ecological systems [2,3,4,5,6] in the aim of disclosing the structures, spatial patterns and landscape corridors within urban areas [7,8]
The urban green corridors analysis method proposed here can be used in other cities and allow for the production of spatially detailed urban ecological connectivity assessment and monitoring
The methodology deployed in this paper presents the way to analyze urban green corridors and address the issue of ecological connectivity for the sustainability of urban development
Summary
Especially those in rapidly growing processes of urbanization in Asia [1], are increasingly the spotlights of a large number of classical and emerging disciplines that study social-ecological systems [2,3,4,5,6] in the aim of disclosing the structures, spatial patterns and landscape corridors within urban areas [7,8]. Green Infrastructure (GI) has evolved and been widely employed [10], and it has been defined and interpreted in different ways, especially as ecological networks [11] of natural and semi-natural areas and approaches for the strategic planning of networks of green and blue spaces that meet multiple environmental, social and economic objectives in urban environments on various scales [12,13,14] It has been widely recognized as one of the key concepts for promoting urban sustainability and optimizing urban and regional spatial planning [7,12,15,16]. Captured open land open space pixels, clusters of open space pixels that completely surrounded by fringe open space pixels less than 200 hectares in area fallow agricultural fields, wetlands, grass lands, etc.
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