Evaluating the Impacts of Riparian Plants on Flood Hazard Within Vegetated Rivers DOI Creative Commons

Matteo Rillo Migliorini Giovannini,

Giuseppe Francesco Cesare Lama,

Lorenzo Scopetani

и другие.

Journal of Flood Risk Management, Год журнала: 2025, Номер 18(2)

Опубликована: Май 13, 2025

ABSTRACT In the last few years, vegetated rivers have been managed with main purpose of achieving water drainage and improving conveyance through vegetation removal. However, this leads to peak discharge augmentation wave travel time reduction. This study assesses shredding selective cut impacts on flood risk management. Flow resistance was obtained considering morphology hydrodynamic measurements performed during two field campaigns conducted just before destructive in growing season after 4 years. Järvelä model adopted by modeling shrubby Leaf Area Index ( LAI ), while Nepf selected for herbaceous vegetation, based flexible plants reconfiguration, strongly dependent species type. Finally, Baptist et al. employed woody rigid plants, modeled as a random or staggered array cylinders. Results one‐dimensional unsteady hydraulic numerical simulations show higher levels years severe cut, thinning reduces them. methodology allows quantification propagation flow delay: celerity decreases up 21% 34% (for undisturbed clear scenarios, respectively) because re‐growth, causing delay from 20 30 min at downstream cross‐section.

Язык: Английский

Evaluating the Impacts of Riparian Plants on Flood Hazard Within Vegetated Rivers DOI Creative Commons

Matteo Rillo Migliorini Giovannini,

Giuseppe Francesco Cesare Lama,

Lorenzo Scopetani

и другие.

Journal of Flood Risk Management, Год журнала: 2025, Номер 18(2)

Опубликована: Май 13, 2025

ABSTRACT In the last few years, vegetated rivers have been managed with main purpose of achieving water drainage and improving conveyance through vegetation removal. However, this leads to peak discharge augmentation wave travel time reduction. This study assesses shredding selective cut impacts on flood risk management. Flow resistance was obtained considering morphology hydrodynamic measurements performed during two field campaigns conducted just before destructive in growing season after 4 years. Järvelä model adopted by modeling shrubby Leaf Area Index ( LAI ), while Nepf selected for herbaceous vegetation, based flexible plants reconfiguration, strongly dependent species type. Finally, Baptist et al. employed woody rigid plants, modeled as a random or staggered array cylinders. Results one‐dimensional unsteady hydraulic numerical simulations show higher levels years severe cut, thinning reduces them. methodology allows quantification propagation flow delay: celerity decreases up 21% 34% (for undisturbed clear scenarios, respectively) because re‐growth, causing delay from 20 30 min at downstream cross‐section.

Язык: Английский

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