摘要
为深入研究铁尾矿土壤调理剂对土壤的修复影响及其作用机理,以某郊区试验地块作为研究区域,分析调理剂对土壤修复的影响。实验结果表明,铁尾矿土壤调理剂能显著提高土壤pH值;明显降低土壤中可提取态镉的含量,调理剂中的金属离子可以减少铅在土壤各层中的积累并抑制迁移能力;调理剂对土壤中各项营养指标无明显作用,但可以有效降低土壤中速效钾和有效磷的含量。基于探究铁尾矿土壤调理剂对土壤修复的作用机理,表明铁尾矿土壤改良剂可以改善土壤的理化性质,增加土壤肥力,促进植物生长,对土壤重金属污染有一定的修复作用。
In order to investigate the effects and mechanisms of iron tailings soil conditioners on soil remediation,a suburban experimental plot was selected as the research area to analyze the effects of conditioners on soil remediation.The experimental results show that iron tailings soil conditioner can significantly increase soil pH value.Reducing the extractable cadmium content in soil,the metal ions in the conditioner can reduce the accumulation of lead in various soil layers and inhibit its migration ability.Conditioners have no significant effect on various nutritional indicators in the soil,but can effectively reduce the content of available potassium and available phosphorus in the soil.Based on the exploration of the mechanism of iron tailings soil conditioner on soil remediation,it is shown that iron tailings soil conditioner can improve the physical and chemical properties of soil,increase soil fertility,promote plant growth,and have a certain remediation effect on soil heavy metal pollution.
作者
侯小洁
刘璇
张燕乐
黎佳莹
Hou Xiaojie;Liu Xuan;Zhang Yanle;Li Jiaying(College of Chemical Engineering and Modern Materials,Shangluo University,Shangluo 726000,China;Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources,Shangluo 726000,China;Shaanxi Engineering Research Center for Mineral Resources Clean&Efficient Conversion and New Materials,Shangluo 726000,China)
出处
《环境科学与管理》
CAS
2024年第9期169-173,共5页
Environmental Science and Management
关键词
铁尾矿土壤调理剂
土壤修复
作用影响
机理
iron tailings soil conditioner
soil remediation
impact of action
mechanism
