中文摘要：

种子大小和幼苗更新对策是植物生活史策略的重要组成部分．本文从不同侧面综述了当前国内外关于种子大小和幼苗之间关系的生态学研究，包括：种子大小对萌发出土的影响，种子大小与幼苗形态生长特性之间的关系，种子大小与幼苗存活、竞争能力之间关系等，并对今后的相关研究进行了展望．在不同的微环境和植被类型下，种子大小与幼苗生长之间的关系可能有所差异；种子大小对植物幼苗生长的影响导致种子大小不同的植物对植被幼苗更新补充的贡献不同；种子大小与幼苗生活史策略关系在大尺度的群落空间水平上和小尺度的物种间与物种内的研究对于天然植被的更新恢复研究具有重要意义．

英文摘要：

Seed size and seedling recruitment strategy are of importance in the life-history strategy of plant. In this paper, the current ecological researches at home and aboard on the relationships between seed size and seedling growth were reviewed from the aspects of the effects of seed size on seed germination and seedling emergence, the relationships between seed size and seedling growth traits, and the relationships between seed size and seedling survival and competition ability. Some suggestions on future researches in this field were put forward. There were likely different relationships between seed size and seedling growth in different microenvironments and vegetation types, and the effects of seed size on seedling growth could result in different contributions of different seed-size species to the seedling recruitment of vegetation. The large-scale community level and the small-scale intra- and inter-species level researches on this issue should be strengthened, which would have significance for the recruitment and renewing of natural vegetation.