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文章的撰写是根据9a生长白落叶松地理种源试验的材料,并在研究其地理变异规律的基础上,又根据生长、物候性状,运用主分量和聚类分析方法,进行地理种群的划分。在划分中以主要气象因子的气候类群为佐证,参考地形、地貌、土壤、植被及行政区划等,将长白落叶松分布范围区划成5个种源。它们是:①小北湖种源(Ⅰ,位于张广才岭);②白刀山种源(Ⅱ,位于老爷岭);③白河种源(Ⅲ,位于长白山区);④大石头种源(Ⅳ,位于长白山东北部);⑤桓仁种源(Ⅴ,位于龙岗山区)。
The article is based on the 9a growing white larch provenance provenance materials, and in the study of its laws of geographical variation, but also according to the growth, phenological characteristics, the use of principal components and cluster analysis method, the division of geographic populations. In the division, taking the climatic groups of main meteorological factors as evidences, the distribution range of Larix olgensis is divided into five provenances with reference to topography, topography, soil, vegetation and administrative divisions. They are: ① Xiaobeihu provenance (Ⅰ, located in Zhangguangcailing); ② Baodoushan provenance (Ⅱ, located in Laoyeling); ③ Baihe provenance (Ⅲ, located in Changbai Mountain area); ④ boulder provenance Located in Changbai Mountain northeast); ⑤ Huanren provenance (Ⅴ, located in Longgang Mountain).