10. Content and amount of active Ca in calcaeric and non – calcaeric saturated cynnamonic forest soils in Eastern Rhodope soil province

Variations in contents of total CaCo₃ and active Ca, organic matter, pH and granulometric content as resut from soil erosion, have been determined for the complex of cynnomonic forest soils within the soil area of Eastern Rhodope Mountains in Bulgaria. Results have been compared from examinations of contents and property of soils with deep soil profile which have been disintegrated from erosion.