Modelling the Hydrological Effects of Woodland Planting on Infiltration and Peak Discharge Using HEC-HMS

Woodland planting is gaining momentum as a potential method of natural flood management (NFM), due to its ability break up soil and increase infiltration water storage. In this study, 2.2 km2 area in Warwickshire, England, planted with woodland every year from 2006 2012, was sampled using Mini Disk infiltrometer (MDI). Infiltration measurements were taken 10 200 cm away the trees, November 2019 August 2021. Two individual hydrological models built US Hydraulic Engineering Center Hydrological Modelling System (HEC-HMS), model effects change on peak flows site throughout summer winter. The calibrated validated empirical data; Nash Sutcliffe Efficiency (NSE) used an indicator accuracy. Results study show that reduced flow intensity compared impermeable land cover by average 6%, 2%, 1% for 6-h, 24-h, 96-h winter storms, respectively, 48%, 18%, 3% respectively. However, grassland simulations greatest reduction flows, being 32%, 21%, 10%, lower than 6-, 24-, 3%, 0.5%