Exploring the impact of nature-based solutions for hydrological extremes mitigation in small mixed urban-forest catchment

Lina Pérez-Corredor (Avtor), Samuel Edvard Hume (Avtor), Mark Bryan Alivio (Avtor), Nejc Bezak (Avtor)

Povzetek

ManyregionsinEuropefaceincreasingissueswithfloodinganddroughtsduetochanging rainfall patterns caused by climate change. For example, higher rainfall intensities increase urban f looding. Nature‑based solutions (NbS) are suggested as a key mitigation strategy for floods. This study aims to address and mitigate the challenges faced in Tivoli natural park in Ljubljana regarding high peak discharges and low‑flow issues in the creek entering the sewer system. The study involves setting up, calibrating and validating a Hydrologic Engineering Centre–Hydrologic Modelling System(HEC‑HMS)modelusingavailabledata. ThisstudyanalysesNbS,suchassmallponds, green roofs and permeable paving, to reduce peak discharge. Runoff was reduced by an average of 32.4% with all NbS implemented and peak discharge by 20 L/s. Permeable parking performed best, with an average runoff reduction of 6.4%, compared to 4.8% for permeable streets and 5.9% for green roofs. The ponds reduced peak discharge, although their effectiveness varied between rainfall events. Rainfall events with higher volumes and durations tended to overwhelm the proposed solutions, reducing their effectiveness. The ability of HEC‑HMS to model NbS is also discussed. The curve number (CN) parameter and impervious % alterations to simulate NbS provided quantitative data on changes in runoff and discharge.

Ključne besede

hidrološko modeliranje;odtok;maksimalni pretok;upravljanje z vodami v mestih;odvajanje padavinske vode;hydrological modelling;runoff;peak discharge;urban water management;stormwater drainage;

Podatki

Jezik:	Angleški jezik
Leto izida:	2024
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
UDK:	624.131
COBISS:	219866627
ISSN:	2076-3417
Št. ogledov:	16
Št. prenosov:	0
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarni naslov:	Preučevanje vpliva naravnih rešitev za obvladovanje hidroloških ekstremov v majhnem urbano-gozdnem porečju
Sekundarne ključne besede:	hidrološko modeliranje;odtok;maksimalni pretok;upravljanje z vodami v mestih;odvajanje padavinske vode;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-18
Letnik:	ǂVol. ǂ14
Zvezek:	ǂiss. ǂ24, ǂart. ǂ 11813
Čas izdaje:	2024
DOI:	10.3390/app142411813
ID:	25535546