重金属吸附材料修复重金属污染土壤盆栽模拟试验  

Experiment on Pot Plant of Heavy Metal Adsorption Material Repairing Heavy Metal Contaminated Soil

作　　者：黄东亚[1] 刘君[1] 任晓姣 杨雍[1] HUANG Dong-ya;LIU Jun;REN Xiao-jiao;YANG Yong(Xi′an Agricultural Product Quality and Safety Inspection and Monitoring Center,Xi′an 710077,China)

机构地区：[1]西安市农产品质量安全检验监测中心,陕西西安710077

出　　处：《黑龙江农业科学》2020年第2期38-45,共8页Heilongjiang Agricultural Sciences

基　　金：西安市科技创新支持计划项目[NC1504(5)]。

摘　　要：为确定重金属吸附材料在盆栽试验中的吸附效果,通过对比分析,探讨了在不施肥及施肥条件下不同镉、镍污染土壤加入同量修复材料后对土壤和作物中镉、镍含量变化及作物生物量的影响。结果表明:吸附材料对土壤中的重金属镉、镍具有很好的吸附效果,施肥条件下吸附材料效果更好;加入同量吸附材料,土壤重金属镉、镍浓度相当时,碱性砂壤土高于碱性壤土的吸附率,酸性壤土高于碱性壤土中的吸附率;植株中重金属含量高低与土壤中重金属含量呈正相关;在低浓度镉、镍重金属含量的土壤中,修复土壤与对照土壤中植株的生物量差别不大;在高浓度镉、镍重金属含量的土壤中,修复土壤与对照土壤中植株的生物量存在差异。In order to determine the adsorption effect of heavy metal adsorbents in pot experiment,through comparative analysis,the changes of Cd and Ni contents in soil,crops and their effects on crop biomass were studied under the condition of fertilization and no fertilization.The results showed that the adsorption materials had a good adsorption effect on Cd and Ni in soil,and the effect was better under the condition of fertilization.When the same amount of adsorption material was added,the concentration of Cd and Ni in soil was equal,the adsorption rate of alkaline sandy loam soil was higher than that of alkaline loam soil,and that of acid loam soil was higher than that of alkaline loam soil.The content of heavy metals in the plant was positively correlated with the content of heavy metals in the soil;in the soil with low concentration of cadmium and nickel,there was no significant difference in the biomass of the plants between the restored soil and the control soil;in the soil with high concentration of cadmium and nickel,there was a significant difference in the biomass of the plants between the restored soil and the control soil.

关 键 词：施肥 土壤重金属浓度 吸附效果 

分 类 号：X70[环境科学与工程—环境工程]