【摘要】 通过调查分析，长白山红松针阔混交林倒木影响天然更新的主要方式是通过林木风倒或枯死形成林冠空隙，从而促进天然更新，而在倒木上更新较少。这和云冷杉林大部分是直接在腐烂的例木上完成天然更新截然不同更多还原

【Abstract】 The research showed that the main way which log influenced natural regeneration in Korean pine-clecicluous mixed forcst was to form various gaps by windfall and tree upright death, then created good sun-shine, nutrients and water condition for regeneration. The fallen trees were important component in Koreanpine-deciduous mixed forest ecosystem and suggested the logs should be kept in forest in Changbai mountain.Finally, the paper also gave sonie suggestions for the log rational management in Korean pine-decidcous mixedforest which mainly produced timber.更多还原