摘要
通过盆栽试验，研究了土壤－植物系统中酞酸类增塑剂ＤＢＰ、ＤＥＨＰ的迁移和分布．结果表明，土壤中ＤＢＰ、ＤＥＨＰ的降解符合一级反应动力学方程，玉米根、茎、叶中ＤＢＰ的浓度随时间变化趋势是不同的．土壤－植物系统中ＤＢＰ的迁移转化可以用二分室系统模型描述．
The degradation, translocation and distribution of DBP (dibuty1 phthalate) and DEHP [2ethy(hexy1) phthalate] were studied by greenhouse experiments in soilplant system. The results showed: The degradation rates of DBP and DEHP were fitted in firstorder kinetics equation. The DBP concentration increase in the roots, stems and leaves of maize plant as a time function were different. DBP transformation and translocation in soilplant system were described by TwoCompartment System model.
基金
国家自然科学基金
浙江省自然科学基金
关键词
土壤
植物系统
有机毒物
迁移
分配
translocation
distribution
organic toxic chemical
soilplant system
