Degradation of pesticides on plant surfaces and its prediction - A case study on tea plant

文献类型： 外文期刊

第一作者： Chen, ZM

作者： Chen, ZM;Wan, HB

期刊名称：ENVIRONMENTAL MONITORING AND ASSESSMENT （ 影响因子：2.513； 五年影响因子：2.871 ）

ISSN： 0167-6369

年卷期： 1997 年 44 卷 1-3 期

页码：

收录情况： SCI

摘要： The degradative kinetics of pesticides on plant surface are characterized by an initial rapid degradation which follows a first-order kinetics, then transferred to a more slower degradative rate. The degradative process mainly consists of photodegradation, evaporation, rainfall elution and growth dilution. The influencing parameters of these processes were investigated by using the tea plant as a case study. The predictive model of the initial concentration, photodegradation rate constant, evaporation rate constant, rainfall elution rate, growth dilution rate and the total degradation rate was discussed and verified in four locations situated in the range of 25 degrees-30 degrees N latitude, and acceptable results were obtained.

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