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马尾松地理起源及进化繁衍规律的探讨
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Journal Article
马尾松地理起源及进化繁衍规律的探讨
2002
Overview
通过地史变迁、冲川影响、地形特点、生态条件的分析与植株原始形态的调查检测，提出四川盆地的马尾松种源是我国古老马尾松的原始类型，由于盆地的特殊地形，使马尾松渡过冰期的影响得以保存而生长到现在，经检测该地区马尾松针叶树脂道数目最少，只有大多数种源的一半，条叶型菌木比例最高，比大多数种源高2－6倍。树脂道少与条叶型苗木多都是较为原始的形态特征，证明四川盆地种源属于原始类型，是马尾松地理起源种群，又由于盆地东南部与外界沟壑相连，植物基因交流渠道通畅，使得马尾松从原始分布区，经过渡地带不断进化繁衍到全国各地。
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