Grapevine roots contribution to soil reinforcement was quantified for an area prone to shallow landslides.
Root density is strongly correlated to soil permeability.
Root strength is similar in the different soils and landscapes across the region.
Total root reinforcement is strongly correlated to root density in soil, thus it is lower in low permeable soils.
In the soils where root density and reinforcement are lower, shallow landslides developed.