ECOLOGICAL STATE OF BOG SOILS AND PEAT BOGS OF ZHYTOMYR POLESSYA

It was found that the bog soils contain significant amounts of gross Mn, are characterized by low content of total and mobile forms of Cu and Zn, and a low content of total forms of Pb and Cd. The drained fens have a low content of total forms of Cu, Pb, Cd and Zn and mobile forms of copper and zinc. The content of total forms of Zn in the peat bogs on average by 33%, while mobile – by 50% more compared to the bog soils. The content in the peat bogs of gross forms of copper by 64%, and mobile – by 30% higher than the content of these elements in wetland soils. The magnitude of the total zinc equivalent of heavy metal toxicity for the peat bog soils are characterized primarily as a “lightly contaminated" and "normally contaminated". The maximum contribution to the total zinc equivalent toxicity of bog soils and drained sedge and wood-sedge peat bogs contribute lead and manganese, for low-lying peat bogs – copper and manganese