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本文从油松的形态变异调查入手,提出了油松自然类型划分的主要依据是冠幅大小与树皮厚度。经多方面分析比较,将灵空山地区的油松,划分为窄冠细皮油松和宽冠粗皮油松两种自然类型。并分类型进行了生长测定,使形态变并与生长特性联系起来,加以定量分析,揭示了油松形态变异与速生表现型的关系,肯定了两类型间之差异,证实了窄冠细皮油松确应为优良类型。为进一步研究油松种内遗传变异规律和建立油松良种繁育基地提供了依据。
In this paper, the morphological variations of Pinus tabulaeformis were investigated. The main basis for the natural type classification of Pinus tabulaeformis was crown size and bark thickness. After many analyzes and comparison, Pinus tabulaeformis in Lingco Mountain is divided into two natural types, ie, narrow-skinned Pinus tabulaeformis and broad-skinned perennial pine. And the growth of the determination of the type, the morphological changes and growth characteristics linked to quantitative analysis reveals the relationship between the morphological variation of Pinus tabulaeformis and fast-growing phenotype, affirmed the difference between the two types, confirmed the narrow crown skin oil Loose should be good type. This provided the basis for further study of the genetic variation of Pinus tabulaeformis and the establishment of Pinus tabulaeformis breeding base.