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研究树木实生苗的建立对森林生态系统的保育和恢复具有重要意义，在北京东灵山地区调查了辽东栎（Ｑｕｅｒｃｕｓ ｌｉａｏｔｕｎｇｅｎｓｉｓ）实生和萌生幼苗在几种典型的植被类型中的空间分布以及辽东栎一年生实生幼苗在 １个林窗梯度上的建立。选择几种典型的植被类型，研究辽东栎实生幼苗和萌生幼苗在森林中的空间分布。结果显示，在不同植被类型中辽东栎实生和萌生幼苗的密度存在空间差异，实生苗密度随幼苗年龄增大逐渐降低，种群的更新主要依靠萌生苗完成。在１个落叶阔叶林中选择１个林窗，在不同梯度（即林窗中间、林窗和树冠连接处，以及树冠下）上，播种辽东栎坚果，第二年秋季调查实生幼苗的２个生长指标和出苗率。结果显示，林窗对一年生实生幼苗的生长高度有影响。幼苗高度在林窗中比在树冠下大；林窗对辽东栎幼苗最长叶片长度和幼苗的出苗率没有影响。说明辽东栎实生幼苗的良好生长需要阳光比较充足的生境条件。本项研究结果建议，对辽东栎种群的更新，应该适当择伐一些较大个体，使森林形成一些林窗或林中空地，以利于辽东栎实生幼苗的建立，这样才能使辽东栎种群通过实生苗进行更好的自然更新。
Studying the establishment of tree seedlings is of great significance to conservation and restoration of forest ecosystems. The spatial distribution of seedlings of Quercus liaotungensis in several typical vegetation types and the annual annual growth of Quercus liaotungensis Establishment of seedling in a forest gap gradient. Several typical vegetation types were selected to study the spatial distribution of seedlings and sprouting seedlings of Quercus liaotungensis in the forest. The results showed that the density of seedlings of quercus liaotungensis was different in different types of vegetation, the density of seedlings decreased with the increasing of seedling age, and population renewal mainly relied on the initiation of seedling emergence. In a deciduous broad-leaved forest, 1 forest window was selected, oak was planted at different gradients (ie, the middle of the gap, under the canopy and canopy, and under the canopy), and the second year was used to survey the growth of seedlings Indicators and emergence rate. The results showed that the gap was significantly affected by the growth of annual seedlings. The seedling height was larger in the canopy than under the canopy. The canopy gap had no effect on the longest leaf length and seedling emergence of Quercus liaotungensis seedlings. The results showed that the good growth of the seedlings of Quercus liaotungensis seedlings required sufficient habitat of sunlight. The results of this study suggest that for Q. liaotungensis population renewal, some larger individuals should be appropriately selected to make some forest gaps or gaps in the forest in order to facilitate the establishment of oak seedlings in Quercus liaotungensis so that the Quercus liaotungensis population can survive Miao for better natural regeneration.