Fig. 6From: Modelling of root reinforcement and erosion control by ‘Veronese’ poplar on pastoral hill country in New ZealandDistribution of calculated maximum root reinforcement (kN/m) for the measured (points) and modelled (dashed lines) root distribution of the PN dataset. The colours indicate different stem density per hectare (sph). The positions of the tree stems correspond to normalised distances of 0, 1, 2, and 3Back to article page