种苗建植的影响因素

摘要

Seedling establishment is the results of successful seed germination and seedling survival,which is the vulnerable and key stage of plant life cycle.A variety of factors might affect the survival of seedlings and then influence the distribution and abundance of the plant in the community.The present study discussed the concept of seedling and seedling establishment and summarized the effects of light,temperature,soil water re-gime,heterogeneous habitat,microhabitat,predation and digestion by animals and plant reproduction charac-ters,litter,the pathogen and allelopathy on seedling establishment according to relative researches from home and abroad.This review will provide theory basement for further understanding the regeneration process of vegetation community and mechanism of community succession.%种苗建植是成功的种子萌发和种苗存活的结果，是植物生活史中最为敏感和关键的阶段，多种因素影响种苗的命运，进而影响群落中物种的分布和丰富度。本文回顾了国内外的相关文献，在探讨种苗及种苗建植概念的基础上，综述了光照、温度、土壤水分、异质生境和微生境、动物取食及消化、植物繁殖体特征、凋落物、病原体和化感作用对种苗建植的影响，以期为进一步研究不同生态系统中植物群落的天然更新过程和群落演替机制提供理论基础。