桑叶对大气氟化物吸收积累规律及其浓度预测模式探讨

The Research on the Regulations of Absorbtion and Accumulation of Fluoride in Air and the Model of Predicting Its Density in Mulberry Leaves.

本文研究了自然生长条件下,桑叶对大气氟化物吸收积累规律。结果表明,桑叶含氟量与大气氟化物浓度呈极显著相关;同一枝条桑含氟量自下而上逐渐下降;降水对桑叶氟有显著清洗作用。同时对桑叶含氟量预测模式进行了探讨。

Preliminary experiment was conducted to study on the regulations of absorbtion and accumulation of fluoride from air in mulberry leaves under nature condition. The results obtained showed that the correlation between the fluoride quantity in the mulberry leaves and the fluoride concentration in the air was very remarkable. From down to upon, the fluoride quantity in the leaves became lower and lower in the some branches of mulberry. Water has a remarkable washing acttion on the fluoride in the mulberry leaves. The model of predicting its density in mulberry leaves was also studied in this experiment.