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Multi-functionality of nature-based and other urban sustainability solutions: New York City study
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för naturgeografi.ORCID-id: 0000-0001-9408-4425
Rekke forfattare: 42018 (engelsk)Inngår i: Land Degradation and Development, ISSN 1085-3278, E-ISSN 1099-145X, Vol. 29, nr 10, s. 3653-3662Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In an increasingly urban world, developing sustainable cities is crucial for global sustainability. Urban nature-based solutions (NBS), such as green infrastructure, are often promoted for their potential to provide several urban services. These include stormwater mitigation, improving energy efficiency of buildings, and carbon emissions mitigation, but few studies have compared the multifunctionality of NBS to conventional urban solutions providing similar services. Fewer yet have acknowledged the indirect resource (specifically climate, land, energy, water [CLEW] nexus) impacts that these solutions may have. This paper analyzes these aspects, employing a simple CLEW nexus accounting framework, and attempts a consistent comparison across different resource systems. The comparison includes direct and indirect impacts of a set of stylizedand diversesolutions, each with different primary objectives: green roofs, representing a multifunctional urban NBS; permeable pavements targeting mitigation of stormwater flows; window retrofits targeting energy efficiency; and rooftop PV installations targeting CO2 emissions mitigation. The results highlight both the direct and total (CLEW nexus) impacts of green roofs on stormwater retention, energy use, and CO2 emissions. However, also for the studied conventional solutions with primarily a single direct function, CLEW nexus impacts spread across all measured dimensions (energy, water, and CO2) to varying degrees. Although the numerical results are indicative and uncertainty needs to be further assessed, we suggest that the development of this type of multifunctional, multisystem assessment can assist urban sustainability planning, with comprehensive and consistent comparison of diverse (NBS and conventional) solutions.

sted, utgiver, år, opplag, sider
2018. Vol. 29, nr 10, s. 3653-3662
Emneord [en]
CLEW nexus, green roofs, multifunctionality, nature-based solutions, urban sustainability
HSV kategori
Identifikatorer
URN: urn:nbn:se:su:diva-162001DOI: 10.1002/ldr.3113ISI: 000447651700036OAI: oai:DiVA.org:su-162001DiVA, id: diva2:1264165
Tilgjengelig fra: 2018-11-19 Laget: 2018-11-19 Sist oppdatert: 2019-12-03bibliografisk kontrollert

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