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为了研究污灌土壤对外源铜的缓冲动力学规律，连续添加外源铜于土娄土中，在不同时间测定并求得缓冲量与缓冲速率，运用ＳＹＳＴＡＴ分析统计处理，结果显示：在低剂量外源铜作用下，随时间变化，缓冲速率基本上保持恒定；而在较高剂量外源铜作用下，缓冲速率随时间延长而减小。一元线性方程、抛物线方程及非线性阻尼振动方程对描述土壤缓冲速率及缓冲量动力学具有适应性；非线性阻尼振动方程适于表征高剂量外源铜作用下土壤缓冲速率动态及波动变化规律；土壤缓冲动力学方程与铜源强度、土壤类型及时间有关
In order to study the buffer dynamics of sewage irrigation soil to exogenous copper, continuous addition of exogenous copper in the soil, at different times measured and calculated the buffer and buffer rate, the use of SYSTAT statistical analysis, the results showed that: low dose Under the action of exogenous copper, the buffering rate basically kept constant with time, while the buffering rate decreased with time under the condition of higher dose of exogenous copper. The univariate linear equation, parabolic equation and nonlinear damped vibration equation are suitable for describing the soil buffer rate and buffer dynamics. The nonlinear damped vibration equation is suitable for characterizing the dynamics and fluctuation of soil buffer rate under high dose of exogenous copper. Soil cushion kinetics equation is related to copper source intensity, soil type and time