摘要
本文研究了宝山区农田大气中气氟的含置及其对水稻生长的影响,初步结果如下:1.宝山区农田大气中气氟的基准值为1.19μg/dm^2·d;2.稻株中以剑叶对气氟污染最为敏感,剑叶罹受氟污染的起始污染值为69.14ppm;3.剑叶中氟化物浓度与大气中气氟含量(X)之间的回归关系式为:=22.98+7.35X:4.氟化物在稻谷中有着明显的表聚现象.
The paper deals with the content of gaseous fluorine in the field air and its influnce on rice grown in Baoshan district.The main results are as fallows:The base level of gaseous routine in the field air is 1.19μg/ dm^2·day.The sword leaf is the most sensitive to the gase- ous fluorine pollution and the starting value that suffered pollution is 69.14μg/dm^2·day. The regression equation between the content of F in the sword leaf and content of gaseous fluorine in the field air is = 22.98+7.35X.The F distribution exist siginificant phenomenon of surface layer accumulation.
关键词
水稻
生长
氟
农田
Gaseous fluorine pollution
Sword leaf
Starting pollution value
Phenomenon of surface layer accumulation
