草地生态系统芽库研究进展

Review of bud banks in grassland ecosystems

芽库是植物营养繁殖的基础。在草地生态系统中,特别是以多年生克隆植物为主的草地生态系统中,地上植被的季节变化、种群更新和群落动态变化更依赖于芽库。芽库的特征、作用及其影响因子一直是植被生态学研究的热点问题,这些问题的探究对于预测植被演替、发展方向及植被管理具有重要指导意义。浏览国内外大量文献的基础上,从芽库规模与构成、时空格局及其影响因素等方面进行一个较系统的总结,为将来的研究提供一些有益的途径。

Basal budsare important for vegetative reproduction,influencing seasonal growth,population regen-eration and community dynamics of aboveground vegetation in grassland ecosystems,especially in clonally plant-dominant perennial grasslands.Bud bank characterization,including influencing factors,is an important aspect of plant ecology which will benefit the prediction of vegetation succession,and inform vegetation management.The review summarizes the size,composition,spatial and temporal pattern of grassland bud banks and its influencing factors,providing useful direction for future research.