【摘要】 为更好地揭示长白山北坡红松混交林的林隙状况及其对主要树种更新的影响，采用相邻网格样方法对该地区红松混交林的林隙成因、分布格局及主要树种的更新状况做了详细的调查。结果表明，该地区红松混交林中，各样地林隙面积变动在２２５６～２５６０ｍ２之间。形成林隙的枯死木主要是由阔叶树种组成。林隙分布比较均匀，小林隙占多数，大林隙数量少。均匀分布的林隙和生长过程中上层林冠的多次疏开，为红松幼树提供了多次的生长空间和机会，有利于红松幼龄个体的存活和生长。椴树的更新与林隙的关系不大，而色木槭多在林冠下分布。更多还原

【Abstract】 Investigation was carried out on the north slope of Changbai Mountain The formation, distribution patterns of gap and regeneration of Korean pine mixed forest were studied in order to obtain a further understanding of the relationship of gap regimes and regeneration of the forest The result shows that Korean pine mixed forest has many small, evenly distributed gaps and a few large gaps at Mt Changbai Most of the gap-makers are deciduous trees The frequent formed, evenly distributed small gaps may be beneficial to survival and growth of saplings of Pinus koraiensis Acer mono trees are often distributed under canopy Regeneration of Tilia amurense, however, is less affected by gap更多还原