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本文以辽宁省长白落叶松栽培区的２２个市、县为样本，利用８个气候因子，应用主分量分析法（ＰＣＡ）进行计算。结果表明，前两个主分量信息占有率达全部信息的８４７１％，取前两个主分量对样本进行了二维排序。根据排序结果对栽培区进行了气候区划，划分了长白落叶松生长适宜区、较适宜区和可生长区三个区域，分析了各区与长白落叶松生长相关的气候条件，为确定该树种在不同地区的栽培措施和经营方向提供了气候依据。
In this paper, 22 cities and counties of Larix olgensis in Liaoning Province were selected as samples, and eight climatic factors were used to calculate by principal component analysis (PCA). The results show that the first two principal components occupy 8471% of the total information, and the first two principal components perform two-dimensional sorting. Based on the results of the sequencing, the planting area was divided into three regions: the suitable growing area, the more suitable area and the growing area. The climatic conditions related to the growth of Larix olgensis in each area were analyzed. Regional cultivation measures and business direction provided a climate basis.