降雨途径中农作物对核素的截获行为研究现状

Status of Research on Interception of Wet Deposited Radionuclide by Crops

核设施运行过程中,排放的气载放射性核素沉积到土壤或农作物表面并进入食物链,是计算公众内照射剂量的主要来源,大气湿沉积-降雨过程中农作物对核素的生态转移过程涉及截获和易位行为。本文调研了国内外降雨途径中农作物对核素截获行为的研究现状,包括农作物种类、实验方法、影响因素和转移参数,结合我国现状,提出了此领域的研究方向和重点。

Radionuclides released during the operation of nuclear facilities deposited on the surface of soil or crops and into the food chain, is the main source for calculating the internal dose to the public. The process of wet deposition involves the behavior of interception and translocation of radionuclides by crops. The research status of interception in rainfall pathways at home and abroad was overviewed, including crop species, experimental methods, influencing factors and transfer parameters. In view of the current situation in China, the research focus and direction in this field are put forward.