用高等植物监测大气中的二氧化硫  

Monitoring the SO_2 in Atmosphere by Using Higher Plant

作　　者：孙勇民[1] 

机构地区：[1]天津现代职业技术学院,天津市3000222

出　　处：《天津职业院校联合学报》2007年第5期30-32,共3页Journal of Tianjin Vocational Institutes

摘　　要：通过测定天津常见高等植物树种白杨、垂柳的树皮中的pH值,研究大气中SO2的含量对树木pH值的影响。结果表明,大气中污染对植物pH值影响较大。树皮pH值与大气酸性污染物含量呈显著的负相关。This paper deals with the effects of SO2 in atmosphere on pH value of trees by using the method of measuring tree pH value and the condition of atmosphere pollution. The results show thatthe plllutants in the atmosphere has the most effective on tree pH value. The relationship between pH value of and acidic pollutants in the atmosphere was remarkably negative correlation.

关 键 词：PH值 酸性污染物 树皮 

分 类 号：X524[环境科学与工程—环境工程]