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中国农学通报 ›› 2019, Vol. 35 ›› Issue (4): 69-74.doi: 10.11924/j.issn.1000-6850.casb18080110

所属专题: 烟草种植与生产

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

曲靖烟叶重金属分布特征及不同品种、海拔之间的差异分析

穆佳佳1, 鲁耀2, 董石飞3, 朱海滨3   

  1. 1.云南省曲靖市麒麟区农业局;2.云南省农业科学院农业环境资源研究所;3.红云红河烟草集团有限责任公司
  • 收稿日期:2018-08-30 修回日期:2018-11-16 接受日期:2018-11-23 出版日期:2019-01-31 发布日期:2019-01-31
  • 通讯作者: 鲁耀
  • 基金资助:
    云南中烟公司资助项目“原料基地烟叶质量维护及提高技术研究”(2016YL05)。

Distribution Characteristics of Heavy Metals in Qujing Tobacco Leaves and Differences Among Varieties and Altitudes

  • Received:2018-08-30 Revised:2018-11-16 Accepted:2018-11-23 Online:2019-01-31 Published:2019-01-31

摘要: 为研究曲靖烟区烟叶重金属分布特征,对曲靖烟区不同区域的烟叶中铜、铅、铬、镉、砷、汞等重金属含量分布特征及不同烤烟品种、不同海拔高度之间的差异进行分析。结果表明,曲靖烟区烤烟中铅含量处于较高水平,是当前曲靖烤烟中的存在重金属污染风险较大的主要元素,铜、铬、镉、砷、汞含量处于较低水平。烤烟重金属含量在曲靖不同县区之间存在显著差异,烤烟重金属累积较少的是师宗和陆良,重金属累积较多的是沾益、宣威和麒麟,其中沾益烟区烟叶铅含量显著高于其他县区,其高于全市平均值的样品比例高达100%。烤烟重金属含量在不同品种之间存在较为明显的差异,‘云烟97’的铜含量和‘云烟105’的镉含量最低,‘红大’的铅含量和‘云烟100’的铬含量最高,砷和汞含量在各品种之间差异未达显著水平;烟叶中重金属含量相对较高的品种是‘红大’,相对较低的是‘云烟97’和‘K326’。烤烟铜、镉、铬、砷含量差异在不同海拔范围之间均未达到显著水平,铅含量在2000~2200 m海拔范围、汞含量在1400~1600 m海拔范围显著高于其他海拔范围。

关键词: 脱硫石膏, 脱硫石膏, Ca2, 抗盐性

Abstract: The distribution characteristics of Cu, Pb, Cr, Cd, As and Hg in tobacco leaves from different regions of Qujing tobacco-growing area and the differences between different flue-cured tobacco varieties and different altitudes were analyzed. The results showed that the content of Pb in flue-cured tobacco in Qujing tobacco area was at a high level, and Cu, Cr, Cd, As and Hg were at a low level. Pb is probably the main heavy metal element in flue-cured tobacco in Qujing. The content of heavy metals in flue-cured tobacco was significantly different among different counties in Qujing. The accumulation of heavy metals in flue-cured tobacco was less in Shizong and Luliang, and more in Zhanyi, Xuanwei and Qilin. The content of Pb in Zhanyi was significantly higher than that in other counties, and the proportion of heavy metals in Zhanyi was as high as 100% of the average sample in Qujing. The contents of heavy metals were significantly different among different varieties. The contents of Cu in Yunyan 97 and Cd in Yunyan 105 were the lowest, the contents of Pb in Hongda and Cr in Yunyan 100 were the highest, while the contents of As and Hg were not significantly different among different varieties. The relatively high content of heavy metals in tobacco leaves is Hongda, while Yunyan 97 and K326 are relatively low. The differences of Cu, Cd, Cr and As in flue-cured tobacco did not reach significant levels in different altitude ranges. The contents of Pb in flue-cured tobacco at 2000-2200m and Hg at 1400-1600m were significantly higher than those at other altitudes.