土壤镉生物毒性的影响因素研究进展

Research Advances in Influence Factors of Phytotoxicity of Cadmium in Soil

近年来,随着工业三废排放和污水污泥农用的增多,土壤镉污染问题日益严重,而土壤中过量的镉会对作物产生毒害,尤其是在可食部分的残留将会通过食物链危害人类的健康,为此,国内外专家对镉污染毒性的影响因素进行了广泛深入的研究,本文对这些研究取得的成果和存在的问题进行了综述。

During the recent years, with the increase of discharged industrial wa stes (gases, liquids and solids) and application of sewage sludge in farmland, t he pollution of soil by cadmium, one of most hazardous heavy metals, becomes mor e and more serious. The excess cadmium in soil does not only inhibit the growth of crops, but also harm human health. This paper summarizes the studies on sever al major influence factors of phytotoxicity of cadmium in soil.