Summary:

The paper presents the diversity of soil organic carbon (SOC) contents in soils of three reclaimed objects: external dumping grounds of mines Bełchatów, Machów and Turów. Sites vary in soil texture, age of tree stands and their species composition. The largest carbon pool in the organic level (litter) is in a dumping ground for the Turów mine,- the oldest of the objects. Similarly, the total SOC pool in the organic layer and the mineral to 30 cm deep in the soil is the largest dumping ground, Turów. The average annual increase in SOC stocks varied from about 0.5 t/ha/year in Bełchatów, after more than 1.2 t/ha/year in Machów. The annual deposition of organic carbon can be estimated at 1.7-2.5 t / ha / year.