土壤重金属污染生态过程、效应及修复

The ecological process,effect and remediation of heavy metals contaminated soil

本文探讨了重金属在土壤中的行为特性及其生态化学过程作用的特点,不同的重金属元素在土壤胶体颗粒表面的吸附特性及不同元素间的交互作用类型有所不同,自然对重金属迁移积累的影响有所不同。土壤重金属污染影响了种子萌发、幼苗生长、作物产量及体内重金属含量,探讨了污染土壤的酶学评价方法。阐述了重金属污染土壤生物修复的特点,展望了重金属污染生态过程研究的未来发展趋势。

This paper inquired into the behaviors and property of ecological process of heavy metals in soil, the adsorption property of different heavy metals elements are different in the surface of soil colloid, the type of interaction are different for different heavy metals, it directly effects migration and accumulation of heavy metals in soil. The seed bourgeon ,seedling growth ,crop yield and heavy metals contents were influenced by contaminated soil. Meanwhile enzymology evaluation of contaminated soil by heavy metals were discussed. The property of bioremediation technology were discussed in contaminated soil by heavy metals. The developed trend of pollution ecological process for heavy metals will be discussed in the future.