The equilibrium adsorption method was adopted to study the effect of watersoluble substances(WSS)from corn straw on the sorption of Zn(Ⅱ)on albic soil.The influencing factors of sorption included temperatures(298 K and 318 K),WSS concentrations and contact times(1~1 440 min).The results showed that:(1)Under the condition of different temperatures,the thermodynamic adsorption curves of Zn(Ⅱ)on albic soil included three stages,which contained the first rapid rising,middle platform and continued rising until getting to an equilibrium.The process experienced a transition from the electrical sorption to the complex sorption,ultimately,the above mentioned two types of sorptions were all existent.The adsorption characteristics were described well by Langmuir equation.The rising temperature would be helpful to improve the maximum buffer capacity of Zn(Ⅱ)on albic soil.In addition,the adsorption of Zn(Ⅱ)on albic soil was a process,which was nonspontaneous,endothermic and increased disorder degree.(2)Addition of WSS could inhibit the adsorbed process,reduce the affinity and adsorption intensity between Zn(Ⅱ)and tested soil,besides,it could increase the activity of Zn(Ⅱ)and improve its biological availability.(3)With the concentrations of WSS increasing,the adsorption intensity was decreased,whose process could be described by a linear equation.(4)The kinetic adsorption of Zn(Ⅱ)on the albic soil included two stages:shortterm rapid sorption and longterm slow sorption.At the stage of shortterm rapid adsorption,the adsorption rates from two treatments(no WSS and WSS)could get to 79.51% and 96.80% respectively,but at the same moment,addtion of WSS could reduce the adsorption intensity.The kinetic data could be better described by Elovich and dualconstant equation.The existence of WSS had disturbed the process of kinetic adsorption.