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采用间歇法与流动法研究了有机质、粘粒和ＣａＣＯ＿３含量不同土壤中的磷吸附动力学。选用的五个动力学公式中，以Ｅｌｏｖｉｃｈ方程和三个并存的一级动力学公式拟合度最优。土壤吸附磷的过程大致可分为快速、中速和慢速三个反应阶段。随着反应速度的降低，活化能逐步升高。ＣａＣＯ＿３和粘粒是石灰性土壤的主要固磷基质，粘粒主要在快速吸附区起作用，而ＣａＣＯ３的吸附作用则随时间的延长逐渐增强。间歇振荡法与流动法各有优缺点，但流动法能够反映磷吸附的瞬时特征，并且更接近日间状况。
The kinetics of phosphorus adsorption in soils with organic matter, clay and CaCO_3 contents was studied by means of batch method and flow method. Among the five kinetic formulas chosen, the Elovich equation and three co-existing first-order kinetic formulas are the best. Soil phosphorus adsorption process can be divided into three stages: fast, medium and slow. As the reaction rate decreases, the activation energy gradually increases. CaCO 3 and cosmids are the main phosphate-fixing substrates in calcareous soils. Cosmids mainly play a role in the fast adsorption zone, while the adsorption of CaCO3 gradually increases with time. The intermittent oscillation method and the flow method each have advantages and disadvantages, but the flow method can reflect the instantaneous characteristics of phosphorus adsorption and is closer to day conditions.