Combustion waste and fly ash disposal sites have unfavourable properties for revegetation. Owing to its phytoameliorative ability different alder species have long been used in the reclamation of degraded sites, as N-fixing species and forecrop for introducing more demanding tree species in reforestation. We present the growth parameters and effects of black alder (Alnus glutinosa), grey alder (A. incana), and green alder (A. viridis) on the physicochemical and biological properties of the technosols developed from the lignite combustion wastes disposal site in central Poland after 10 years of plant growth. The study plots were randomly arranged (72 m 2 of each plot, four replications for variant) at 3 species × 2 different soil treatments: CCW+L (combustion waste with lignite amendment in planting hole) and CCW (pure combustion waste). The obtained results indicate that soil treatment did not significantly influence the studied physicochemical soil parameters (pH, CEC, RESP, SOC, Ntot and macronutrients content) either in O horizon or in the mineral soil. The effect of species on pH, Ntot and macronutrients content was evident in the O horizon but not in the mineral soil. The better growth parameters were found for black alder than for grey alder. The mean height was 3.9 and 6.3 m for grey and black alder, respectively. Accumulation of litter layer (Ol) ranged from 2.9 to 3.6 Mg ha-1 (mega gram per hectare), and grey alder litter was characterized by the highest content of nutrients (N-P-K). Organic C content in the 0-5 cm mineral layer (A) increased to 38.06 and 47.80 g kg-1 (gram per kilogram dry soil), respectively for green and black alder. The highest N content in A layer was measured under black alder. Microbial respiration and biomass were significantly lower in the Ol layer under green alder than under two other alder species. However, in the mineral soil all three alder species stimulated microbialbiomass and activity similarly. Because of the highest growth parameters of black alder and the highest litter production under canopy and N content in the soil we recommend this species for revegetation of combustion waste disposal site.