Résumé
Species selection is vitally important for ensuring the success of any ecotechnological solution that may be employed on a particular site. The purpose of this chapter is to provide the engineer with a database of plant species that are suitable for both soil and slope stability by either mechanical or hydrological means, i.e., anchoring and buttressing of deep tap roots; bank and channel reinforcement; deep reinforcement and soil strength enhancement; removing soil moisture, surface protection, shallow reinforcement and erosion control. Protection forests rely on the stability of trees to maintain their integrity especially during storms and with regard to rockfall or avalanches. We therefore provide guidelines as to which species best resist these abiotic forces on slopes