Agroforest soil samples were collected at two depths (0-20 and 20-40 cm) near the Glogow Copper Plant (Poland). Adsorption parameters and isotherms were obtained by fitting the data to the Freundlich equation. The KF values of soil samples from the depth 0-20 cm were lower (from 32.1 to 45.4 dm³/kg) than those calculated for the soils nr 6 and 7 i.e. 48.7 and 51.4 dm³/kg, respectively. The multiple regression analysis revealed that pH, clay content and additionally organic matter content influenced the most the magnitude of K_F values. Buffering indices gave a best estimation of the adsorption isotherm than made on the basis of K_F and n values only. The lack of high correlation coefficients between K_F and soil properties as well as "total Pb" and the latter ones may be attributed first to the specificity of agroforest soils and second to their presumable anthropogenic origin.