农药在环境中消解模式的研究

Study on Degradation Models of Pesticides in Environment

根据近年农药环境毒理的研究结果,叙述了农药在环境因素中消解的数学表达式。当前后期农药消解速度不同时,可用C=A·l^(-αt)+B·l^(-βt);当具有吸收和消解双过程时,用C=A·(l^(-αt)-l^(-βt));而最广泛应用的表达式,则是C=C_0·l^(-κt)。

Based on the study results of environmental toxicology of pesticides, mathematical expressive models of pesticide degradation in environmental factors were described. While the speed of pesticide degradation in early stage was differed from later stage, using C=Ae^(αt) +Be^(βt) will be satisfactory, when the changes of pesticides were both uptake and degradation simultaneously, C=A(e^(-αt)-e^(-βt)) would be applied, however C=C_0e^(-k1) was used extensively.