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当前位置: 首页 > 文章 > 小麦对镉的吸收、富集及其镉污染预测研究进展 中国农学通报 2020 (6) 37-41
Position: Home > Articles > Cadmium Absorption and Enrichment in Wheat and Its Cadmium Pollution Prediction:Research Progress Chinese Agricultural Science Bulletin 2020 (6) 37-41

小麦对镉的吸收、富集及其镉污染预测研究进展

作  者：
符云聪;朱晓龙;袁毳;解晓露;李鹏祥;朱维;黎红亮;刘代欢
单  位：
永清环保股份有限公司;农田土壤污染防控与修复技术国家工程实验室;湖南永清环保研究院有限责任公司
关键词：
小麦;镉;富集;安全阈值;浸提剂;污染预测
摘  要：
本研究回顾和总结了国内外学者对小麦镉吸收和富集的特点,对比分析了小麦各部位镉的富集系数,小麦不同部位镉富集顺序为:根>叶>茎>籽粒。土壤镉安全阈值是保障小麦质量的重要指标,小麦籽粒中镉含量可以由土壤中总镉含量及pH值来预测。对3类不同浸提剂浸提的土壤有效态镉进行探讨,发现这些浸提剂浸提的土壤有效态镉含量与小麦镉含量间的相关性顺序为:络合剂类>中性盐类(CaCl_2)>稀(弱)酸类。最后提出了结论和展望,以期为今后小麦镉污染预测提供重要的理论指导和思路。
译  名：
Cadmium Absorption and Enrichment in Wheat and Its Cadmium Pollution Prediction:Research Progress
作  者：
Fu Yuncong;Zhu Xiaolong;Yuan Cui;Xie Xiaolu;Li Pengxiang;Zhu Wei;Li Hongliang;Liu Daihuan;Yonker Environmental Protection Co., Ltd;Hunan Yonker Environmental Protection Research Institute Co., Ltd;National Engineering Laboratory of Farmland Soil Pollution Prevention and Control and Repair Technology;
关键词：
wheat;;cadmium;;enrichment;;safety threshold;;extractant;;pollution prediction
摘  要：
We reviewed and summarized the general research progress of absorption and enrichment characteristics of cadmium in wheat, and analyzed the enrichment coefficient of cadmium in different parts of wheat. The results showed that: the cadmium enrichment in different parts of wheat was in the order of root>leaf>stem>seed. The safety threshold of soil cadmium was an important index to ensure the quality of wheat.The content of cadmium in wheat grain could be predicted by the total cadmium content and pH value in soil.The soil available cadmium extracted by 3 kinds of extractants was discussed, and it was found that the correlation coefficients(r) between the soil available cadmium extracted by these extractants and cadmium in wheat grain were in the order: complexing agents>neutral salts(CaCl_2)>dilute(weak) acids. At last, we put forward references for future wheat cadmium pollution prediction.

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