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

被引：24

作者：

Chen, ZM

Wan, HB

机构：

[1] Chinese Academy of Agricultural Sciences,Tea Research Institute

[2] Hangzhou,undefined

来源：

ENVIRONMENTAL MONITORING AND ASSESSMENT | 1997年 / 44卷 / 1-3期

关键词：

D O I：

10.1023/A:1005791514357

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

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.

引用

页码：303 / 313

页数：11