该文对长白山地区阔叶树种核桃楸的种子雨和种子库动态进行了研究 .结果显示 :胡桃楸种子雨过程从每年 8月 2 2～ 2 5日到 9月 2 4～ 2 8日 ,其中 9月 10～ 17日是集中落果期 ,落果数量占总数的 6 1.1% .啮齿动物的搬运和啃食是造成胡桃楸种子库亏损的主要因素 ,动物搬运果实的数量达到总量的 85 .8% .胡桃楸种子的自然萌发率降低 ,仅为 0 .5 4% .其果实大而重 ,种子雨传播距离很近 ,多集中在母树周围 In this paper, the dynamic changes of seed rain and seed bank of Juglans mandshurica in broad-leaved Changbai Mountains were studied.The results showed that the seed rain of Juglans mandshurica was from August 22 to August 25 to September 24, of which 9 From Dec. 10 to Dec. 17, it was concentrated deciduous period, accounting for 61.1% of the total number of fallen fruits.The handling and grazing of rodents were the main factors that caused the loss of Juglans mandshurica seed bank, the number of the animal handling fruits reached 85.8% of the total, The germination rate of Juglans mandshurica seed decreased only by 0.54% .The fruit was large and heavy, and the seed rain spread very close and concentrated around the mother tree