根际环境及其对土壤污染物的作用

根际环境是重要的环境界面,在污染土壤的植物修复中发挥着极为重要的作用,因而成为当前土壤与环境科学研究中的一个热点。根际由于生长发育和生理代谢活动,形成了一个不同于非根际土壤的微生态系统,从而影响到土壤污染物的存在形态、分布、迁移和生物有效性,使得污染物在根际环境中表现出一些特殊的化学行为。文章就近年来根际环境对土壤中主要污染物作用的研究进展作一简要评述,并指出其存在问题以及今后的努力方向,以期为该领域的研究提供借鉴。

The Effect of Rhizosphere Environment on Soil Pollutant

Rhizosphere environment is important environmental interface,it plays an important role in phytoremediation of soil pollutant,and has become a hot point in the research of soil and environmental science.Growth and development and metabolic activity of rhizosphere have formed a microecosystem which is different from non-rhizosphere soil,thereby,affecting the existence,distribution,transporting and bioavailability of soil pollutant,making it show some special chemical behaviors.This study makes a brief comment on current research progress of rhizosphere affecting on main soil pollutant,and points out some existing problems and the trend for further research in order to provide some reference for the research of this region.