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Article

Rainwater Use for Vertical Greenery Systems: Development of a Conceptual Model for a Better Understanding of Processes and Influencing Factors

1
Institute of Sanitary Engineering and Water Pollution Control, University of Natural Resources and Life Sciences, Vienna (BOKU), Muthgasse 18, 1190 Vienna, Austria
2
Institute of Soil Bioengineering and Landscape Construction, University of Natural Resources and Life Sciences, Vienna (BOKU), Peter-Jordan-Straße 82, 1190 Vienna, Austria
*
Author to whom correspondence should be addressed.
Academic Editor: Richard C. Smardon
Water 2021, 13(13), 1860; https://doi.org/10.3390/w13131860
Received: 7 June 2021 / Revised: 29 June 2021 / Accepted: 29 June 2021 / Published: 3 July 2021
(This article belongs to the Special Issue Water and Circular Cities)
Vertical greenery systems (VGS) are promoted as a nature-based solution to mitigate the urban heat island effect. In order to ensure the long-term provision of this function, sufficiently available irrigation water is the key element. Currently, potable water is one of the main resources for irrigation of VGS. While rainwater is often mentioned as an alternative, only a few studies investigate the actual application of rainwater for irrigation. In this study a conceptual model is developed to present the processes and influencing factors for a holistic investigation of rainwater use for irrigation. In this model, five sub-modules are identified: the atmospheric, hydraulic, quality, rainwater harvesting and VGS sub-module. The conceptual model depicts which processes and influencing factors are involved in the water demand of VGS. Thus, the conceptual model supports a holistic understanding of the interrelations between the identified sub-modules and their relevance for VGS irrigation with harvested rainwater. The results of this study support the implementation of rainwater harvesting as a sustainable resource for VGS irrigation. View Full-Text
Keywords: vertical greenery systems; rainwater harvesting; conceptual model vertical greenery systems; rainwater harvesting; conceptual model
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MDPI and ACS Style

Prenner, F.; Pucher, B.; Zluwa, I.; Pitha, U.; Langergraber, G. Rainwater Use for Vertical Greenery Systems: Development of a Conceptual Model for a Better Understanding of Processes and Influencing Factors. Water 2021, 13, 1860. https://doi.org/10.3390/w13131860

AMA Style

Prenner F, Pucher B, Zluwa I, Pitha U, Langergraber G. Rainwater Use for Vertical Greenery Systems: Development of a Conceptual Model for a Better Understanding of Processes and Influencing Factors. Water. 2021; 13(13):1860. https://doi.org/10.3390/w13131860

Chicago/Turabian Style

Prenner, Flora, Bernhard Pucher, Irene Zluwa, Ulrike Pitha, and Guenter Langergraber. 2021. "Rainwater Use for Vertical Greenery Systems: Development of a Conceptual Model for a Better Understanding of Processes and Influencing Factors" Water 13, no. 13: 1860. https://doi.org/10.3390/w13131860

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