Green infrastructure as a means to deliver a multi-scale approach for urban sustainability



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A series of economic, ecological, population and institutional constraints have recently produced new challenges and pressures on urban growth and to the management of cities’ critical infrastructures (Hodson and Marvin, 2010). Green infrastructure thereby provides a framework that can be used to guide future growth, land development and conservation decisions to accommodate population growth and protect and preserve community assets and natural resources (Benedict and McMahon, 2006). Key ideas from landscape ecology that are relevant to green urban infrastructure for sustainable cities include: a multi-scale approach with an explicit recognition of pattern-process relationships and an emphasis on physical and functional connectivity (Ahern, 2007).

The contribution of green infrastructure with a view of its multi-scale approach over urban sustainability and its engagement with metropolitan cities such as Melbourne (Australia) and İzmir (Türkiye) have largely formed the content of this work. Hence, this paper aims at exploring green infrastructure as a comprehensive system introduced within the continuum ‘metropolitan-district (or local) scales’. This study delivers a concise but comparative analysis between the aforementioned cities in terms of establishing and/or enhancing a consistent green infrastructure that could necessarily support the urban sustainability.