城市近郊蔬菜基地土壤中重金属含量的调查研究

Investigation on the Heavy Metal Content in the Soil in a Vegetables Base in Suburb

选取我国常州市近郊传统蔬菜基地的大棚内的土壤为研究对象,通过原子吸收分光光度法测定了土壤中Zn,Cu,Pb,Cd的含量,并对其进行了系统综合评估。结果表明,研究地区近郊蔬菜基地土壤存在轻度的重金属污染,重金属含量在地表以下10 cm处最高;同时针对性地提出了防治重金属污染的对策。

The soil in greenhouses of vegetable bases in suburb of Changzhou city was selected as the study object. The content of Zn, Cu, Pb, and Cd in the soil was determined through the atomic absorption spectrophotometry. The comprehensive evaluation was also taken. The main results show that： the soil of vegetables base in suburb of the study area has slight heavy metal pollution. The content of heavy metal is the highest at 10 cm under the surface of the earth, and the treating measures against the heavy metal pollution were put forward.