浅谈重金属元素在土壤中的迁移及黏土矿物对其修复作用

摘要

There are many types of heavy metals in the soil,and the ability of migration each are not identical. The influencing factors of heavy metal elements form are pH value of soil,soil rhizosphere environment. The migration process but also by affecting of soil type,moisture and organic and inorganic ligands in the soil. Clay minerals have good adsorption,it is mainly through ion exchange,cooperate and coprecipitation reaction to repair the heavy metal contamination in the soil.%重金属元素在土壤中的存在形式有多种，且迁移能力各不相同，而影响重金属元素形态的因素是土壤pH、土壤植物根际环境，重金属元素迁移的过程还受到土壤类型、含水量以及土壤中有机和无机配体的影响。黏土矿物具有良好的吸附作用，它主要是通过离子交换、配合反应和共沉淀反应来修复土壤中的重金属污染。