三门峡地区不同烟区与国外烟区气候相似性分析

为研究三门峡市优质烤烟的种植区域问题，利用三门峡市国家级和区域气象站数据，运用多变量聚类分析法对三门峡烟区进行分类，并将不同烟区与国外烟区进行气候相似性分析。结果表明，三门峡海拔落差大，区域气象站数据代表性明显，更能真实反映出各烟区的烤烟气候指标。聚类分析出的2 类烟区中，卢氏、灵宝烟区与国外优质烟区气候相似性相比，与津巴布韦最为相似，与巴西为高级相似，与美国为较高级相似，表现出生产优质烤烟的气候条件。在烟草种植规模不断减少的趋势下，三门峡市烤烟种植可优先考虑第2类烟区。

Climate Similarity Between Sanmenxia Tobacco Area and Overseas Tobacco Areas

To study the high-quality tobacco growing areas in Sanmenxia, based on data from the climatic stations located in the national tobacco areas of Sanmenxia, we analyzed the similarity of different tobacco areas both at home and abroad, and classified the tobacco areas in Sanmenxia via multivariate clustering analysis. The results showed that, the data from climatic stations could faithfully represent the Climatic Feasibility Index (CFI) of each tobacco area because of the drastic difference of sea levels within Sanmenxia area. The clustering analysis could tell that the climate of Lushi and Lingbao tobacco areas had the most similarity with the tobacco area in Zimbabwe, high level similarity with the one in Brazil, and medium level similarity with the one in the US, indicating that Lushi and Lingbao had excellent tobacco-growing climatic conditions. In the trend of continuing decrement of the tobacco growing scale, Lushi and Lingbao tobacco areas should be considered with priority in Sanmenxia.