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Montealegre, A.L. and García-Pérez, S. and Guillén-Lambea, S. and Monzón-Chavarrías, M. and Sierra-Pérez, J. GIS-based assessment for the potential of implementation of food-energy-water systems on building rooftops at the urban level. Science of The Total Environment Volume 803, 10 January 2022, 149963, 803.

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This research develops a bottom-up procedure to assess the potential of food-energy-water (FEW) systems on the rooftops of buildings in an urban district in Spain considering the urban morphology of the built environment and obtains accurate assessments of production and developmental patterns. A multicriteria decision-making technique implemented in a geographical information system (GIS) environment was used to extract suitable rooftop areas. To implement this method, the slope (tilt), aspect (azimuth), shading, and solar radiation of the rooftops were calculated using LiDAR (Light Detection and Ranging) data and building footprints. The potential of FEW system implementation was analysed at the building and morphology levels. The results showed several differences between residential and non-residential urban morphologies. Industrial areas contained the highest productivity for FEW systems. The production was 2.51 kg of tomatoes/m2, 48 kWh of photovoltaic energy/m2, and 0.16 l of rainwater/m2. Regarding the residential urban morphologies, the more compact tents resulted in better performance. Among the FEW systems, although water could best benefit from the features of the entire roof surface, the best production results were achieved by energy. The food system is less efficient in the built environment since it requires flat roofs. The methodology presented can be applied in any city, and it is considered optimal in the European context for the development of self-production strategies for urban environments.

Item Type: Article
Uncontrolled Keywords: LiDARCadastral data; FEW systems; Urban morphology; Urban metabolism; Urban self-sufficiency;
Subjects: English > Climate Change Adaptation
Depositing User: Susanna Carlsten
Date Deposited: 11 May 2022 08:16
Last Modified: 11 May 2022 08:16

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