EN
On the basis of 136 soil samples collected from an area of Poland, the effect of the content of organic carbon in the soil on the chemical composition of soil solution was analyzed. With an increase of organic carbon content in the soil, a significant increase of calcium and to a lesser extent of magnesium, bicarbonates and phosphates in the soil solution was observed. No correlation was noted between the organic carbon soil content and the concentration of aluminium in the soil solution. The contents of organic matter in the soil influenced the concentrations of microelements in the soil solution more than the macroelements content in this soil. The concentrations of manganese, iron, zinc and copper were positively correlated, the concentration of molybdenum was negatively correlated and the concentration of boron did not show any relationship with the soils content of organic carbon.