樟子松、赤松、油松在形态结构及生态生物学特性的比较研究

Comparative Study on Morphology and Bio-ecological Characteristics of Pinus sylvestris var. mongolica,P. densiflora and P. tabulaeformis

樟子松(Pinus sylvestrisvar.mongolica)、赤松(P.densiflora)、油松(P.tabulaefor-mis)均属于松科、松属、双维管亚属中的油松组。它们的共同特征是:叶二针一束,叶鞘宿存,针叶内有两条维管束,树脂道边生。但是,他们在形态特征、针叶内部结构及生态生物学特性方面也有显著的区别。根据这些区别,以准确辨认这三种松树,在生态环境的建设改造中不致于选错树种,从而造成人力和经济上的损失。

Pinus sylvestris var. mongolica, P. densiflora and P. tabulaeformis were Pinaceae ,Pinus, Sect. Pinus of Subgen. Pinus. Their common characteristics were： two leaves in a fascicle, persistent sheath, two vascular bundles in needle -like leaf, but there were great differences on morphological features, internal structure of needle -like leaf and bio -ecological characteristics. According to these differences,three kinds of pine trees could be accurately identified.