Hydrological Performance Assessment of Low-Impact Development Practices: A Vegetated Swale Case Study

Author:

Lhamidi Khalil1ORCID,El Khattabi Jamal1ORCID,Nguyen Hoang Dung1ORCID,Aljer Ammar1ORCID

Affiliation:

1. Univ. Lille, IMT Nord Europe, JUNIA, Univ. Artois, ULR 4515—LGCgE, Laboratoire de Génie Civil et Géo-Environnement, F-59000 Lille, France

Abstract

The increase in rainfall intensity caused by climate change, combined with high levels of urban soil sealing and the limited capacity of drainage systems, is significantly increasing flooding risk. Integrated stormwater management is a key factor in dealing with the consequences of climate change by mitigating flood risk based on nature-based solutions. An experimental site was designed to assess the hydrological response of vegetated swales depending on different catchment surfaces, and to evaluate the impact of spatial variability of the hydraulic conductivity (K). A hydrological model was developed on EPA SWMM and calibrated based on measured data in two experimental swales with different active surfaces (N6—50 m2 and N11—100 m2). The model validation was assessed with NSE scores higher than 0.7. The simulations considered various factors, such as the water level in the swales, the actual rainfall, the evapotranspiration, the swale geometry, the catchment area (Sa), and the hydraulic conductivities of the natural silty soil, to assess, for the heaviest rainfall event, the best swale morphological characteristics. The study examined the combined impact of K (8) and Sa (6) on swale storage capacity, designed with a 250 mm depth. The simulations showed that the 250 mm overflow limit was exceeded for N10 (90 m2) when K ≤ 2 × 10−6 m/s, and for N11 (100 m2) when K ≤ 4 × 10−6 m/s. These results provide valuable information on the optimal storage capacity based on the swales’ geometrical and physical properties.

Funder

Agence de l’Eau Artois-Picardie

Métropole Européenne de Lille

Région Hauts-de-France

Publisher

MDPI AG

Reference67 articles.

1. Core Writing Team, Lee, H., and Romero, J. (2023). Climate Change 2023: Synthesis Report. Contribution of Working Groups I, II and III to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, Intergovernmental Panel on Climate Change (IPCC). [1st ed.].

2. Extreme Weather Impacts of Climate Change: An Attribution Perspective;Clarke;Environ. Res. Clim.,2022

3. An Index of Brazil’s Vulnerability to Expected Increases in Natural Flash Flooding and Landslide Disasters in the Context of Climate Change;Debortoli;Nat. Hazards.,2017

4. Experimental Investigation of a Multilayer Detention Roof for Stormwater Management;Alim;J. Clean. Prod.,2023

5. An Effective and Comprehensive Model for Optimal Rehabilitation of Separate Sanitary Sewer Systems;Diogo;Sci. Total Environ.,2018

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