Nonequivalent exchange and nonelectrostatic adsorption also appeared during exchange-adsorption between Ca-/K-solid phase and aluminium/manganousions,while exchange reaction for calcium and potassiumion pair was electrostatic adsorption.Amount of nonelectorstatic adsorption was controlled both by field intensity of solid surface and hytrolysis nature of ion and its valence number,in which aluminium had the largest value in laterite.The relation between k,K,1/n and ΔF was comprehensively explained from enengy concept,exchange adrorption of aluminium with the largest k,K and the smallest 1/n, hence with negative ΔF.The mechanism for basicions to aluminium transformation in red soil,namely acidification,which was an irreversible and continuously spontaneous proccesses under natural conditions,was proved in thermodynamics.