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Hydrological Analysis of Green Roofs Performance under a Mediterranean Climate: A Case Study in Lisbon, Portugal

Author

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  • Maria Luíza Santos

    (Department of Civil Engineering and Architecture and Georesources, Instituto Superior Técnico, University of Lisbon, CERIS, Av. Rovisco Pais, 1049-001 Lisbon, Portugal)

  • Cristina Matos Silva

    (Department of Civil Engineering and Architecture and Georesources, Instituto Superior Técnico, University of Lisbon, CERIS, Av. Rovisco Pais, 1049-001 Lisbon, Portugal)

  • Filipa Ferreira

    (Department of Civil Engineering and Architecture and Georesources, Instituto Superior Técnico, University of Lisbon, CERIS, Av. Rovisco Pais, 1049-001 Lisbon, Portugal)

  • José Saldanha Matos

    (Department of Civil Engineering and Architecture and Georesources, Instituto Superior Técnico, University of Lisbon, CERIS, Av. Rovisco Pais, 1049-001 Lisbon, Portugal)

Abstract

In this paper, the hydrological performance of eight pilot green roofs (GR) installed in Lisbon, Portugal, under a Mediterranean climate is analyzed. The pilot units were installed at Instituto Superior Técnico campus of Lisbon University. The pilots present different plant species and different substrate types, with some of the units incorporating recycled construction and demolition waste (RCW). The green roofs pilots’ hydrologic performance was evaluated through the simulation of artificial precipitation events between March 2021 and July 2021. Considering the results obtained, it can be concluded that the inclusion of RCW in the substrate composition did not hinder the development of vegetation or the hydrological performance of GR. The results showed a rainfall water retention per event ranging from 37% to 100%, with an average rainfall retention of about 81%. The runoff delay ranged from 2 to 18 min, and the peak attenuation ranged from 30 to 100%. The results indicated that previous substrate moisture strongly influences the hydrological performance of GR. As the inclusion of RCW in the substrate composition promotes a more effective drainage of the substrate during dry conditions, it is considered that RCW may have positive impacts on GR’s hydrological performance.

Suggested Citation

  • Maria Luíza Santos & Cristina Matos Silva & Filipa Ferreira & José Saldanha Matos, 2023. "Hydrological Analysis of Green Roofs Performance under a Mediterranean Climate: A Case Study in Lisbon, Portugal," Sustainability, MDPI, vol. 15(2), pages 1-18, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:2:p:1064-:d:1027178
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    References listed on IDEAS

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    1. Ignacio Andrés-Doménech & Sara Perales-Momparler & Adrián Morales-Torres & Ignacio Escuder-Bueno, 2018. "Hydrological Performance of Green Roofs at Building and City Scales under Mediterranean Conditions," Sustainability, MDPI, vol. 10(9), pages 1-15, August.
    2. Manso, Maria & Teotónio, Inês & Silva, Cristina Matos & Cruz, Carlos Oliveira, 2021. "Green roof and green wall benefits and costs: A review of the quantitative evidence," Renewable and Sustainable Energy Reviews, Elsevier, vol. 135(C).
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    4. Mengmeng Cui & Filipa Ferreira & Tze Kwan Fung & José Saldanha Matos, 2021. "Tale of Two Cities: How Nature-Based Solutions Help Create Adaptive and Resilient Urban Water Management Practices in Singapore and Lisbon," Sustainability, MDPI, vol. 13(18), pages 1-22, September.
    5. Lilliana L. H. Peng & C. Y. Jim, 2015. "Seasonal and Diurnal Thermal Performance of a Subtropical Extensive Green Roof: The Impacts of Background Weather Parameters," Sustainability, MDPI, vol. 7(8), pages 1-16, August.
    6. Patrizia Piro & Marco Carbone & Marilena De Simone & Mario Maiolo & Piero Bevilacqua & Natale Arcuri, 2018. "Energy and Hydraulic Performance of a Vegetated Roof in Sub-Mediterranean Climate," Sustainability, MDPI, vol. 10(10), pages 1-13, September.
    7. Shlomit Paz & Maya Negev & Alexandra Clermont & Manfred S. Green, 2016. "Health Aspects of Climate Change in Cities with Mediterranean Climate, and Local Adaptation Plans," IJERPH, MDPI, vol. 13(4), pages 1-20, April.
    8. Heng Luo & Ning Wang & Jianping Chen & Xiaoyan Ye & Yun-Fei Sun, 2015. "Study on the Thermal Effects and Air Quality Improvement of Green Roof," Sustainability, MDPI, vol. 7(3), pages 1-14, March.
    9. I. Gnecco & A. Palla & L.G. Lanza & P. Barbera, 2013. "The Role of Green Roofs as a Source/sink of Pollutants in Storm Water Outflows," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 27(14), pages 4715-4730, November.
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    Cited by:

    1. Flora Silva & Cristina Sousa Coutinho Calheiros & António Albuquerque & Jorge Pedro Lopes & Ana Maria Antão-Geraldes, 2023. "Technical and Financial Feasibility Analysis of Rainwater Harvesting Using Conventional or Green Roofs in an Industrial Building," Sustainability, MDPI, vol. 15(16), pages 1-12, August.
    2. Jesse Weggemans & Maria Luiza Santos & Filipa Ferreira & Gabriel Duarte Moreno & José Saldanha Matos, 2023. "Modeling the Hydraulic Performance of Pilot Green Roofs Using the Storm Water Management Model: How Important Is Calibration?," Sustainability, MDPI, vol. 15(19), pages 1-16, October.
    3. Flora Silva & Cristina Sousa Coutinho Calheiros & Guilherme Valle & Pedro Pinto & António Albuquerque & Ana Maria Antão-Geraldes, 2023. "Influence of Green Roofs on the Design of a Public Stormwater Drainage System: A Case Study," Sustainability, MDPI, vol. 15(7), pages 1-13, March.

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