City or hinterland – site potentials for upscaled aquaponics in a Berlin case study

Autor: Gösta F. M. Baganz, Axel Timpe, Daniela Baganz, Georg Staaks, Bernd Hunger, Werner Kloas, Frank Lohrberg
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: npj Urban Sustainability, Vol 2, Iss 1, Pp 1-11 (2022)
Druh dokumentu: article
ISSN: 2661-8001
DOI: 10.1038/s42949-022-00072-y
Popis: Abstract Sustainably feeding the rapidly growing urban populations requires resource-efficient food production solutions, such as aquaponics. To assess its upscaled fruition in city regions, we applied system analysis to depict determinants of aquaponics at a mesoscale. Using Berlin as a case study, site potentials regarding the production of freshwater fish, tomatoes, and lettuce to achieve self-sufficiency were investigated. We analysed planning documents by text mining and applied geographic information system procedures to evaluate this technology’s spatial efficacy in intra- and peri-urban spaces, considering aspects of economy, sustainability and spatial distribution. In a facility-based approach, we contrasted specific intra- and peri-urban site potentials with their different boundary conditions. A thereupon-based scenario allocates approximately 20% of the production volume in Berlin, 80% in its hinterland, and emphasises the crucial use of circular economy resources in both spaces. Policy recommendations and the transferability of this realistic approach will support the implementation of aquaponics.
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