土壤中微量金属元素的植物可给性研究进展

Progress in the Investigation on Plant Availability of SOil Trace Metals

评述土壤中微量金属元素（ＴＭｓ）植物可给性研究进展，讨论影响土壤中重金属植物可给性的主要因素，如植物的类型、土壤的物理化学性质及ＴＭｓ的种类和形态等的影响。同时对采用不同提取剂得到的可提取态金属含量和植物可给性之间的关系及污泥的施用等导致ＴＭｓ的植物可给性的变化研究进行了综述和讨论。

A revieW was given on the progress in the research on plant availability of soil trace metals.major factors influencing bioavailability such basplant species, physico--chemical characteristics pfsoil, and the nature and speciation of trace metalswere discussed. The relationship between soil extractable values and plant uptake, and the changeof bioavailability resulting from the application ofsewage sludge were also included.