The concept of formability of bioretention in the Serafa catchment using spatial analyses of natural rainwater runoff paths
author:
KRZYSZTOF MUSZYŃSKI, IZABELA GODYŃ, ANNA PORĘBSKA, KINGA RACOŃ-LEJA
ORCID ID:
0000-0003-0073-789X, 0000-0002-2749-1167, 0000-0001-7939-9947, 0000-0003-4762-8404
No:
7-8/2021 Instal p. 59-65
DOI:
DOI 10.36119/15.2022.7-8.8
Due to the progressive urbanization and climate change, in many cities the occurrence of serious threats of fluvial
and pluvial floods is increasing. Commonly used flood protection measures are technical solutions, and the
procedures to reduce the risk in flooding places in the lower parts of the catchment area are dominant.
Meanwhile, the occurrence of flood risk is influenced by the entire catchment area located upstream. One of the
important solutions to reduce the risk of flooding is the restoration and development of retention, including natural
retention – bioretention. The catchment approach proposed in this paper allows to solve problems “at the source”
of their formation. The method takes into account the analysis of the state of bioretention and the elaboration of
a concept for its development, which is based on the assessment of sealing, surface runoff and existing green
areas. As part of this study a fragment of the Serafa River catchment in Krakow and Wieliczka was analyzed in
terms of the existing natural retention resources, the possibility of restoring the continuity of natural runoff routes
and bioretention in order to minimize the risk of flooding. The exemplary application of the proposed tool based
on publicly available data and software demonstrates the possibilities to consider in practice the approximate
dependencies of the precipitation-retention-runoff process in an urban area, as a result showing how the development of bioretention in upstream areas can reduce the flood risk in Bieżanów. Estimating the amount of
surface runoff generated in each cadastral unit and aggregating the runoff from the upstream units may provide
urban planners with the necessary information for study work for the purposes of spatial planning, including greenery development.
Keywords:
About Authors:
dr inż. Krzysztof Muszyński https://orcid.org/0000-0003-0073-789X, dr inż. Izabela Godyń https://orcid.org /0000-0002-2749-1167
– Katedra Geoinżynierii i Gospodarki Wodnej, Wydział Inżynierii Środowiska i Energetyki, Politechnika Krakowska,
dr inż. arch. Anna Porębska https://orcid.org/ 0000-0001-7939-9947 – Katedra Architektury Miejsc Pracy Sportu i Usług, Wydział
Architektury, Politechnika Krakowska,
dr hab. inż. arch. Kinga Racoń-Leja, prof. PK, https://orcid.org/ 0000-0003-4762-8404 – Katedra Urbanistyki i Architektury Struktur
Miejskich, Wydział Architektury, Politechnika Krakowska. Corresponding author: krzysztof.muszynski@pk.edu.pl