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The purpose of the theme is the knowledge of the installed evolution stands onthe degraded lands and their ameliorative effects. The research was conducted on 3 areas ofimprovement situated in Cluj County and led to the foundation reconstruction. The studies that havebeen made until now showed that the most effective method of improvement and restore ofdegraded areas is the afforestation. The recommended species for afforestation degraded areas are:English oak, ash, cherry, flowering ash, sea bucktorn, grey alder. The results showed a favorableeffect on soil and local climate through: the improvement of surface leakage regime, reducing thethreat of floods, landslides, erosion, improving soil and climatic conditions for culture but also byputting some of the most valuable fields in the economical circuit (business). The ameliorativeeffect may vary depending on the species and site conditions.