Change in the Content of Mobile Forms of Cu and Zn in the Leached Chernozem Under the Pyrogenic Effect

The forest fire effect on the leached chernozem results in the organic matter loss and the decrease in content of alkali-hydrolysed nitrogen compounds. The content of ash components as well as mobile forms of Cu and Zn in the topsoil has increased. It can be connected with the ashes appearing in the soil surface, which are rich in microelements.