Wlasciwosci fizyczno-chemiczne i biochemiczne gleb bielicowych szesc lat po pozarze calkowitym lasu

After a total forest fire the litter and mor horizons have been transformed into a mineral-humus horizons. Higher dehydrogenase and protease but lower phosphatase activities in mineral-humus horizons of post-fire soils as compared to mor humus of control soils were observed. In post-fire soils, lower exchangeable potassium and higher available phosphorus amounts were noted. In mineral-humus horizons of post-fire soils higher values of pH and higher amounts of iron, lead, cadmium and zinc but lower amounts of copper, extracted in 1M HCl, were determined.