中文摘要：

镉是一种重要的重金属污染。由于工业和农业生产中镉的排放不断增加，土壤镉污染日益严重，严重威胁着生态环境和人类健康。镉的处理成为一个亟待解决的问题和研究热点。目前对土壤镉污染的治理主要有物理修复、化学修复和生物修复，还存在通过添加外源物质和选择低镉积累品种等手段来减少镉对农产品的危害。详细介绍了土壤中镉的来源、农田镉污染现状及国内镉污染研究、国内外研究的处理阶段以及镉污染土壤修复的各种特殊性。最后，对研究的展望进行了讨论。

英文摘要：

Cadmium is one of the important contaminative heavy metals. Due to continuous increase of discharge of Cadmium in industrial and agriculture production, cadmium contamination of soil is more and more serious day by day, which seriously threatens ecological environment and human health. Treatment of cadmium becomes an urgent issue and research hot point. At present, remedy for cadmium pollution upon soil mainly are physical restoration, chemical restoration and biological restoration, also there are measurements by means of adding external source matter and selecting low-Cd-accumulation varieties so as to reduce cadmium harm upon agricultural products. This article introduces in detail the resource of cadmium in soil and the present condition of cadmium pollution in farmland and processing of domestic cadmium pollution research, processing stage of domestic and foreign research of restoration of cadmium polluted soil as well as various peculiarities of repair methods. Finally, the expectation of research is discussed.