绿化植物废弃物对Cu和Pb在土柱中分布的影响

文章在参考上海近年来平均降水量的基础上,通过室内模拟实验将污染土壤修复措施与其淋溶特性相结合,选取华东地区典型的灰潮土土壤进行了绿化植物废弃物对重金属Cu和Pb在土柱中分布影响的研究。初步结果显示,灰潮土覆盖绿化植物废弃物处理Cu和Pb的含量在0~5 cm层土壤中较对照处理高,且有覆盖量越大其Cu和Pb含量越高的趋势;而土壤与10 cm、20 cm厚绿化植物废弃物相混合的处理Cu和Pb含量在0~5 cm层Cu和Pb的含量较对照处理低,而分别在5~10 cm土层、10~20 cm土层中含量较高。

Effect of Greenery Waste on Distribution of Cu and Pb in Soil Column

With the respect to the average precipitation for Shanghai in recent years,the effect of greenery waste on vertical distribution of Cu and Pb in Calcareous Chao soil were studied by laboratory column leaching tests,Which will combine the remediation methods of polluted soils with the leaching characteristics.The results showed that the Calcareous Chao soil with the depth of 0~5 cm had a higher contents of Cu and Pb for greenery waste mulching treatment than the control treatment,and with the increasing of greenery waste,the contents of Cu and Pb increased.However,the contents of Cu and Pb were higher for the control treatment than for the treatments of addition of 10cm-greenery waste into soils and addition of 20 cmgreenery waste into soils in depth of 0~5 cm,and the treatments of addition of 10 cm-greenery waste into soils and addition of 20 cm-greenery waste into soils with the depth of 5~10 cm and 10~20 cm had a higher contents of Cu and Pb.