临沂市气象因子对烟叶化学成分的影响

The influence of meteorological factors on the chemical composition of tobacco leaves in Linyi city

研究探究了临沂市气象因子对烟叶化学成分的影响。通过聚类分析对临沂市8个烟站进行归类,分析结果将8个烟站归为3类。对8个烟站所在地区1964—2019年的气象资料进行统计分析,5—9月平均气温23.3℃,平均日照时数203.21 h,平均累积降水量624.7 mm。典型相关性分析结果表明,月平均气温会影响烟叶中总糖、氮碱比、还原糖和两糖差等化学成分;月平均日照时数会影响烟叶中总糖、还原糖、两糖差、氮碱等化学成分;月平均降水量会影响烟叶中总糖、还原糖、两糖差等化学成分。

The effects of meteorological factors on chemical components of tobacco leaves in Linyi city were studied. Through cluster analysis,eight tobacco stations in Linyi area were classified,and the results showed that eight tobacco stations were classified into three categories. Based on the statistical analysis of meteorological data from 1964 to 2019 in the areas where eight tobacco stations are located,the average temperature from May to September is 23.3 ℃,the average sunshine hours is 203.21 hours,and the average accumulated precipitation is 624.7 mm. The results of canonical correlation analysis showed that the average monthly temperature would affect the total sugar,the ratio of nitrogen to alkali,reducing sugar and the difference of two sugars in tobacco leaves;the average monthly sunshine would affect the total sugar,reducing sugar,the difference of two sugars and the ratio of nitrogen to alkali in tobacco leaves;the average monthly precipitation would affect the total sugar,reducing sugar and the difference of two sugars in tobacco leaves.