The pH, Feo/Fed, contents of clay, base ions, MnO2, Feo, Fed, Fe2O3, P2O5, Co, Pb, Li, Cu, Zn, Ni, Cd etc. in iron-manganese cutans were notable higher than those in corresponding matrix soils.

• 供试红壤、黄棕壤和黄褐土铁锰胶膜的pH值、铁的活化度，以及粘粒、盐基、Fe_2O_3、P_2O_5、非晶形铁、游离铁、MnO_2、Co、Pb、Li、Cu、Zn、Ni、Cd等含量均比基质土壤明显的高。