该文对长白山林区珍贵用材树种紫椴的生态学特征进行了研究 .结果表明 ,紫椴伐桩产生的萌条数量在 5 0a以后越来越多 ,萌生能力越来越强 .采伐时期对伐桩的萌生能力影响很大 .在春天发叶以前采伐 ,伐桩的萌生能力很大 ;春天发叶以后采伐 ,伐桩的萌生能力不佳 ;秋天落叶以前采伐 ,使第二年萌生能力降低 ;秋天落叶以后的采伐跟春天发叶以前的采伐效果相同 .紫椴萌生条和造林幼树极易分杈 ,原因是多方面的 .主要的原因是高生长速度与低温 ;另一方面 ,当椴树幼苗当年生枝干来不及很好地木质化时 ,一遇寒流 ,则很快干梢 ,这在空旷地人工更新情况下十分常见 . In this paper, the ecological characteristics of Tilia amurensis, a precious tree species in Changbai Mountain, were studied.The results showed that the number of sprouting stems produced by Tilia amurense was more and more after 5 0a, and the sprouting ability was stronger and stronger. The ability of prilling can affect the pricking ability very much.The pruning ability of pruning and cutting piles before the leaf pruning in spring is very high.The pruning ability after harvesting in spring and logging stump is not good.The harvesting before fall leaves declines the priming ability in the second year ; The harvesting after the fall deciduous leaves is the same as the harvesting effect before the spring leaves deciduous.The twig initiation branch and the afforestation young saplings can be bifurcated easily for many reasons, mainly because of the high growth rate and low temperature; on the other hand, Linden tree seedlings were born in the past to do well to lignification, a case of cold, then quickly dry tip, which in the open artificial regeneration is very common.