| 摘 要： | The aim of the study was to evaluate the vegetation and initial soils forming in the area of the ＂Szczakowa＂ Sand Mine cast （located approx. 50 km NW away from Krakow in southern Poland） that have either been reclaimed or left for succession. In the course of changes of the production fields in the 1970 and the 1980 parts of this open cast were left unreclaimed. Vegetation there appeared spontaneously, and the formation of initial soils began without human interference. Simultaneously, following the termination of exploitation the remaining part of the cast was reclaimed. This is why it was possible to compare the soil and vegetation formative processes in these two site categories. A total of 20 research areas were selected （each 400 m^2） in 4 surface age groups in the chronosequence of 4, 17, 21, 25 years. Field and laboratory studies included the characteristics of selected physical, chemical and microbiological properties of initial soils; the volume and rate of carbon and nitrogen accumulation： humus composition; ground water depth and selected features of ground and surface water; herbaceous and arborescent vegetation; the condition of community biomass.
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