Szukana fraza: [Abstract = "On the base of investigation of physical and chemical peculiarities it was stated that the most intensive changes in soil\-forming processes in direction of initiation of biological accumulation layers\: litter and humus horizon. During the 30\-year period of afforestation recultivation on waste material in Krobica litter 2 cm thick was formed. The changes in dumps recultivated by agricultural were also examined. During the 7\-year period of recultivation on waste material in Jaroszów humus layer only 5 cm thick was formed."]

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