The plasticity of the root system of resistant woody plant species, colonizing industrial waste dumps in Steppe zone of Ukraine

The morphostructure peculiarities of root system have been clarified in three resistant species of woody plants that colonize the dumps of coal mines and soda production in the Donetsk Basin, as well as the dumps of iron ore mines of Kryvorizhzhya. It is established that Padellus mahaleb (L.) Vass., Cotinus coggigria Scop., Armeniaca vulgaris Lam. are renewed only by seeds in industrial waste dumps of Steppe zone and showed high plasticity of root systems from young age. At 3–7 years these species form on dumps surface root system with dominate horizontal lateral roots.