不同管运状态下道路两侧重金属分布特征研究

Study on Distribution Characteristics of Heavy Metals on Both Sides of Road under Different Pipe Transport Condition

为研究不同管运状态下公路两侧土壤重金属含量分布特征,以皖北某市设绿化带且通车时间较短的洪河路与无绿化带且通车时间较长的303省道两侧土壤为研究对象,分析其中Cr,Ni,Cu,Zn,Pb,Cd等重金属元素的分布和累积特征;通过对比两处采样区重金属分布特征,发现公路两侧的绿化带植被会对重金属的迁移起到阻隔的作用,通车时间长短对重金属含量的影响不明显。

In order to study the distribution characteristics of heavy metal contents in soils on both sides of highway under different pipe transportation conditions, the distribution and accumulation characteristics of heavy metal elements such as Cr, Ni, Cu, Zn, Pb, Cd were analyzed by taking the soil on both sides of Honghe Road and non-green Zone with long opening time as the research object, which had green belt and short traffic time in a city of northern Anhui Province, and analyzed the distribution and accumulation characteristics of heavy metal elements in Honghe Road and non-green Zone with long opening time. It is found that the vegetation on both sides of the highway will block the migration of heavy metals, and the effect of opening time on the content of heavy metals is not obvious.