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对水曲柳适生立地条件的研究,过去都采用定性分析和简单的统计方法。一般传统的看法是:水曲柳喜生于排水良好的山麓、缓坡、平沃山谷及山间溪流两岸。幼年易受冻害,随年令增长抗寒力增强。近年来,另一种看法是:水曲柳、胡桃楸、黄波萝等三种硬阔叶树种的适生立地条件是山中腹或沟侧坡面,而山麓或沟旁(靠近溪水处)的生
The research on the conditions for the establishment of Fraxinus mandshurica has used qualitative analysis and simple statistics in the past. The general traditional view is: Ash is born in a well-drained foothills, gentle slope, Ping Wo Valley and mountain streams on both sides. Young vulnerable to frost damage, with the growth of the cold-resistant increase. In recent years, another view is that the habitats of three hardwood species such as Fraxinus mandshurica, Juglans mandshurica, and Huangpoluo are suitable for habitats on the belly or ditch side of the mountain, while those on the foothills or ditch (near streams)