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随着核能的和平利用,有一定数量的放射性核素排放到周围环境,可能造成土壤、植被的污染。由于灌溉量增加,灌溉水的放射性含量高于一般水平,以及干旱地带土壤改良工作的发展,放射性物质向农产品转移的研究成为突出的问题。进入植株的放射性物质可能来自灌溉水,也可能来自含有放射性核素的土壤。而且水→植物和土壤→植物的转移量不同。据报道,水培时植株对放射性物质的积累比土培时显著增
With the peaceful use of nuclear energy, a certain amount of radionuclides are emitted to the surrounding environment, which may cause soil and vegetation pollution. The research on the transfer of radioactive material to agricultural products has become a prominent issue due to the increase of irrigation volume, the higher than normal level of radioactive content of irrigation water and the improvement of soil amelioration in arid areas. Radioactive material entering plants may come from irrigation water or from radionuclide-containing soil. And water → plant and soil → plant transfer amount is different. It has been reported that the accumulation of radioactive material in hydroponics plants is significantly increased when compared to that of soil culture