依据气候数据,通过聚类分析,将恩施州8个植烟县(市)分为3个区域类型:利川、咸丰为一类,巴东单独为一类,宣恩、鹤峰、来凤、建始和恩施为一类;3类区域各气候因子之间具有显著差异。与国内外优质烟区气候特征比较,利川、咸丰与美国相似,但该类型区域所产烟叶化学成分含量与美国烟区相比有较大差异。3类区域烟叶化学成分含量之间均具有显著差异。气候条件对烟叶内在品质有较大的影响。 According to the climatic data, the eight tobacco planting counties (cities) in Enshi Autonomous Prefecture are divided into three types according to the cluster analysis: Icheon and Xianfeng, and the ones in Badong alone are Xuan’en, Hefeng, Laifeng, Jianshi and Enshi belong to one category. There are significant differences among climate factors in three types of regions. Compared with the climatic characteristics of high quality domestic and international tobacco, Lichuan and Xianfeng are similar to the United States, but the chemical components of the tobacco produced in this type of area are quite different from those in the USA. There was a significant difference in the chemical components among the three types of tobacco leaves. Climatic conditions have a greater impact on the inherent quality of tobacco.