不同林分赤松木材密度及管胞形态特征的变异

The Variations of Wood Density and Tracheid Morphological Characteristics of Pinus densiflora in Different Stands

研究分析了不同林分人工林赤松木材的生长轮基本密度和管胞长度、管胞宽度及管胞长宽比等管胞形态特征的变异。结果表明 :赤松纯林和赤松与沙松混交林中赤松木材的基本密度、管胞宽度存在显著差异 ,赤松纯林中赤松木材的基本密度比赤松与沙松混交林中的高 ,赤松与沙松混交林中赤松木材的管胞宽度比赤松纯林中的大 。

The variations of wood basic density and tracheid length, tracheid width, ratio of tracheid length and width of Pinus densiflora plantation in different stands were studied in this paper. The results showed that there is distinct difference in wood basic density and tracheid width between Pinus densiflora pure forest and mixed forest made up of Pinus densiflora and Abies holophylla . The wood basic density of Pinus densiflora in pure forest is higher than that in mixed forest. The wood tracheid width of Pinus densiflora in mixed forest is bigger than that in pure forest. There is no distinct difference in wood tracheid width and ratio of tracheid length and width between Pinus densiflora pure forest and mixed forest.