Journal
CITIES
Volume 134, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cities.2022.104176
Keywords
Green infrastructure; Multi-ecosystem services; Multiscale ecological risks; Urban agglomeration; Systematic review
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Green infrastructure is a key approach to address ecological risks and human needs in global metropolitan areas. Through a systematic review of 101 articles, it was found that flood disasters and demand for outdoor recreational spaces are dominant risks and needs faced by metropolitan areas. The proportion of green infrastructure components providing specific ecosystem services should be increased, and attention should be given to the overall capacity of green infrastructure networks in both quantity and efficiency.
Green infrastructure (GI), providing multiple ecosystem services (ESs), is considered a key way to address ecological risks and human needs faced by global metropolitan areas. However, there is no review of GI's response to multiscale risks and needs by providing ESs. To address this research gap, we used systematic review method by searching articles constructing GI based on ES evaluation and mapping from 2005 to 2021 in Scopus and Web of Science databases, and eventually selected 101 articles. We observed three research scales and GI construction forms: GI and its components, urban GI (UGI), and urban agglomeration GI (UAGI). We found that: 1) flood disasters and human demand for outdoor recreational spaces were dominant risks and needs co-faced by metropolitan areas on three scales. 2) The proportion of GI components in UGI and UAGI providing special ES for specific risk and need should be raised to avoid disservices or ES trade-offs. 3) More attention should be given to the overall ES capacity in both quantity and efficiency of UGI and UAGI networks. Finally, UAGI with superiority in function, layout, and ability to address risks and needs was proposed as a prioritized planning approach to adapt to development of metropolitan areas.
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