甘蔗中重金属Pb、Cd的富集规律

Enrichment of Heavy Metals Pb and Cd in Sugarcane

随着工农业的高速发展以及我国人口基数的不断扩大,土壤重金属污染问题日趋突出。本文以在浙江省台州市种植的甘蔗为研究对象,在土壤中添加不同浓度的重金属镉、铅,分析甘蔗各个部位镉、铅含量,利用富集系数及迁移系数进行研究。结果表明:随着镉、铅添加浓度的增加,甘蔗中富集系数、迁移系数均呈下降趋势;富集系数和迁移系数,均出现Cd>Pb;甘蔗的根部对镉、铅的吸收能力均高于其他部位。

Due to the rapid development of industry and agriculture and the continuous expansion of China’s population base, the problem of heavy metal pollution in the soil has become increasingly prominent. In this paper, the content of cadmium and lead in various parts of sugar cane was analyzed by adding different concentrations of cadmium and lead to sugar cane planted in Taizhou, and the concentration and migration coefficient were used for the study. The results were as following:With the increase of the concentration of cadmium and lead, the concentration coefficient and migration coefficient of sugar cane showed a decreasing trend. Concentration coefficient and migration coefficient, both Cd > Pb. The capacity of cadmium and lead absorption in sugarcane roots was higher than in other parts.