水稻积累砷的能力较其他农作物强,稻米是我国人群从食品中摄入无机砷的主要来源,降低稻米砷含量对增进农产品质量安全有重要意义。本文阐述了稻田砷的生物地球化学转化特征及水稻对不同形态砷的吸收、运输与储存机理,提出阻控稻米砷积累的对策,并讨论了需要进一步研究的问题。 Rice is more able to accumulate arsenic than other crops. Rice is the main source of inorganic arsenic in our population. Reducing the arsenic content in rice is of great significance to improving the quality and safety of agricultural products. In this paper, the characteristics of biogeochemical transformation of arsenic in rice paddy field, the mechanism of rice arsenic uptake, transport and storage in different forms were discussed, and the countermeasures to control the accumulation of arsenic in rice were put forward. The problems to be studied further were discussed.