Sensitivity analysis of the thermo-hydraulic parameters characterizing vegetation in an evapo-transpiration model
Sensitivity analysis of the thermo-hydraulic parameters characterizing vegetation in an evapo-transpiration model
Nature-based solutions (NBS) are increasingly recognized as effective strategies for mitigating weather-induced landslides. Among the key mechanisms, vegetation can enhance slope stability by regulating the energy and water balances through evapotranspiration (ET), which lowers pore water pressure and consequently reduces landslide risk.
This study investigates the sensitivity of ET estimates to variations in vegetation constitutive properties within a physically based thermo-hydraulic framework. A Python-based tool was developed to perform back-analysis and sensitivity analyses under dif-ferent meteorological conditions, quantifying the influence of vegetation-specific parameters on ET dynamics.
The application focuses on a clayey soil cover in a landslide-prone area, where the engineered vegetation mix Prati Armati® (Poaceae species) has been introduced. By systematically varying input parameters across different growth stages, we delineate theoretical ranges of ET fluxes associated with these species.
Nico Stasi; Silvano Emanuele Donvito; Vito Tagarelli; F. Cotecchia; Jean Vaunat
3rd International Workshop on Soil-Vegetation-Atmosphere Interaction (RootS2025)
1b. Site-scale hydrological processes within the RootS environmental domain" – Runoff and leaf interception"
https://doi.org/10.53243/RootS2025-36
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom