土壤有机污染植物修复的机理与影响因素

Main mechanism and affecting factors of phytoremediation of organic contaminated soil.

在综述大量国内外文献的基础上,分析了土壤有机污染植物修复的机理,重点介绍了国内外在植物吸收转运、植物根际降解和植物修复模型的研究进展.同时,从污染物的物理化学性质、植物种类、土壤性质、共存有机物和气象条件5个方面分析了影响土壤有机污染植物修复的主要因素,并展望了该领域的研究方向:深化植物修复机理,完善植物修复模型,加强植物-微生物协同修复的机理研究和技术应用,利用表面活性剂提高植物修复效率,加强复合有机污染植物修复研究.

In this paper , the main mechanisms of phytoremediation of organic contaminated soil, such as adsorption and degradation in rhizosphere, plant uptake, and transformation, and phytoremediation model were illuminated in detail, and their affecting factors, including properties of pollutants, plant species, soil properties, coexisted pollutants, and climate conditions were analyzed. The main topics that need further research were prospected, e. g., deepening the mechanism of phytoremediation, consummating phytoremediation models, approaching on the mechanism and appliance of microbe associated phytoremediation systems, building efficient surfactants enhancing phytoremediation systems, and strengthening the research on phytoremediation of combined organic pollution.