通过室内培养的方式研究了不同磷浓度对土壤供锌容量-强度(Q/I)关系的影响,并应用能量的观点探讨不同磷浓度对土壤中锌的交换过程的影响。结果表明:在不供磷条件下,盘锦盐渍型水稻土的供锌能力最强,沈阳盐渍型水稻土次之,而抚顺潜育型水稻土最差;不同磷水平对锌浓度的改变值(△Zn)、活度比(AR)和交换自由能(△G)均没有显著影响,而这些指标的显著变化是由于不同锌水平的差异引起的。 The effect of different phosphorus concentration on the relationship between the capacity and the strength of soil zinc supply (Q / I) was studied through indoor cultivation. The effect of different phosphorus concentrations on the exchange process of zinc in soils was discussed from the viewpoint of energy. The results showed that, in the condition of non-phosphorus supply, the pan-saline-paddy soil of Panjin had the strongest zinc supply ability, followed by the saline soil of the saline-alkali soil type in Fushun, while the Fushun potential of the paddy soil at the lowest level. (△ Zn), activity ratio (AR) and exchangeable free energy (△ G), while the significant changes of these indexes were caused by the differences of different zinc levels.