合肥市大气污染物中重金属对绿化植物影响的研究

A Study on the Effect of Heavy Metals in Air Pollution on Greening Plants in Hefei Municipality

分别对合肥市电厂等四地，紫叶李等17个绿化树种同步定点采集叶片样品。经分析不同植物对As、Cd、Cr、Cu、Fe、Mg、Mn、Ni、Pb、Zn十种重金属离子富集能力有差异。植物对重金属富集能力与植物生长相一致，以夏季生长旺盛时最强。针对不同重金属污染区，栽植富集能力强的植物，对减少重金属环境污染具有积极意义。

Leaf samples were collected from 17 greening plant species including purple - leafed plum in four sites such as Hefei Power Plant at the same time. Based on analytical results, there are differences among these species at the aspect of the capacity to accumulate heavy metal ions of As, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Pb and Zn. Plants＇ capacity to accumulate heavy metal ions accord with their growth, and it shows highest level in summer when plants grow most vigorously. It is of positive importance to plant plants with strong accumulating capability in the areas polluted by different heavy metals to alleviate environmental pollution caused by heavy metals.