中文摘要：

综述了国内外近年来农业土壤中汞的生物地球化学行为，包括了土壤环境中汞的来源，汞的形态和生物有效性，汞在农业生态系统中的迁移和转化途径，影响汞对植物有效性的主要因子。同时讨论了汞对植物、动物生长发育的影响，特别强调了土壤中汞污染对食物中汞积累和分配的影响及通过食物链途径给人类健康带来的危害。最后提出了汞污染土壤的各种修复措施，展望了今后研究的方向。

英文摘要：

This paper summarizes the studies on biogeochemistry of mercury at home and abroad in recent years, including the source of mercury, mercury forms and their bioavailability, transportation property in soil, and main factors affecting mercury bioavailability. The effect of mercury on the growth of plant and animal are also discussed, and especially, the effect on the mercury accumulation and distribution in food and the hazard of mercury on human health by food chain are emphasized. At last, remediation type, remediation property and application of bioremediation are discussed. New thinking was put forward for synthetic treatment and bioremediation in mercury pollution soil.