[A soils study in the ecological reserve of Paragalitsa--the Rila Mountains]

A study is performed on the background content of soil samples from experimental platforms in districts of catchment area at different heights from 1400 to 2000 m.in the ecological reservation Parangalitsa, Rila Mountains. The investigation is carried out after 19 chemical indices--cations, anions and 9 heavy metals. The generalized statistical data for a period of 2 years characterize the examined soils as background pure and this give a contribution to the total ecological assessment of this naturally clean district of this country.