Abstract
Green infrastructure (GI) as an operational physical framework is being increasingly recognized as the most cost-effective way to mitigate and adapt to social-ecological challenges through multifunctional ecosystem services. Conserving the connectivity of GI is conducive to maintaining biodiversity and facilitating ecological processes, which contributes to promote urban resilience and implies that urban governance has made a conscious effort to prepare for uncertainties. Though important, there are few studies on operating GI practically to navigate urban resilience. Based on interdisciplinary knowledge and multiple techniques, this study provides an integrated approach, in which relationships between GI connectivity, resilience potential, and conservation strategies are better addressed. The results indicate that significant changes have taken place in terms of the composition, layout, and connectivity of GI in the central city of Shenyang between 1995 and 2015. Through pinch point identification and barrier detection, conservation strategies by protecting key structures, eliminating local barriers, and implementing differentiated measures according to land use types are therefore proposed. The strategies may be helpful for future policy formulation, planning, and management by rehabilitating a GI network to increase urban social and ecological resilience in the study area and other similar megacities. This integrated approach based on a generic process of geometric analysis has general applicability to make interdisciplinary contributions toward urban resilience.
Highlights
Contemporary cities have undergone extensive strains on their safety, liveability, and sustainability as they experience rapid urbanization and aggravated global environmental change [1]
Significant changes have taken place in terms of the quantity, components, and layout of Green infrastructure (GI) in the central city of Shenyang between 1995 and 2015. e overall area of GI, which accounts for 64.27% of the total study area in 1995 and for 35.08% of the total study area in 2015, decreased by nearly 38.76% over last 20 years
According to the results of the Morphological Spatial Pattern Analysis (MSPA) of the study area, core takes the largest proportion amongst the associated types for GI
Summary
Contemporary cities have undergone extensive strains on their safety, liveability, and sustainability as they experience rapid urbanization and aggravated global environmental change [1]. Cities need to create positive interactions with their lifesupport systems to build a broad resilience capacity while undergoing stresses, rather than develop at the expense of them [5, 6]. Nature-based solutions that incorporate natural capital components to address urban environmental issues create multiple economic, social, and ecological benefits, which are widely acknowledged for cities [8, 9]. Green infrastructure (GI) has emerged and been identified as a concept closely related to and embedded within the framework of nature-based solutions. It provides an integrated and valuable approach for the transition to an inclusive, resilient, and sustainable urban environment [10, 11]
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