Abstract The species diversity and safety of a 70-year-old collection tree shrub introduced in the arboretum Dzhanybek Research Station, located rainfed conditions semi-desert Northern Caspian region, was studied. created on hydromorphic meadow-chestnut soils mesodepression relief 1953. At present stage, 75 belonging to 23 families 43 genera have been identified arboretum. It analyzed that most...
