大气污染对城市绿化植物叶片叶绿素含量的影响

研究了南阳市城市大气对该市5种常见城市绿化植物叶片叶绿素(a、b)含量比例(Ca/Cb)以及叶片叶绿素总含量(Ct)的影响。通过研究发现,污染严重的南阳卷烟厂区域植物叶片叶绿素Ca/Cb值相对较高,叶绿素总含量(Ct)相对较低;无污染的对照区域(南阳师范学院院内绿化区)植物叶片叶绿素Ca/Cb值相对较低,叶片叶绿素总含量(Ct)相对较高。通过数据分析,进一步得出了5种常见城市绿化植物抗大气污染能力的大小:女贞>大叶黄杨>月季>金叶女贞>三叶草。

Effect of Atmosphere Pollution on Chlorophyll Content in Greening Plant Leaves

The effect of city atmosphere pollution on proportion of chlorophyll and the content of chlorophyll were investigated in five common afforestion plants in Nanyang city of Henan province.The research indicated that the numerical value of chlorophyll(a,b) in Nanyang cigarette factory,which was heavily polluted,was the highest and the content of chlorophyll was least,that the numerical value of chlorophyll(a,b) in the contrasting area which is pollution-free(the green area in the courtyard of Nanyang teachers college) was the lowest and the content of chlorophyll was highest.Meanwhile,Ligustrum licidum Ait.,Euonymus japonicus,Rosa chinensis Jacq.showed remarkable ability of pollution tolerance through data analysis and test.What's more,the sequence of ability of pollution tolerance can be ranked as: Ligustrum licidum Ait.,Euonymus japonicus,Rosa chinensis Jacq.,Ligustrum vicaryi,Trifolium pratense.