栓皮栎天然更新研究进展

Research Progress on Natural Regeneration of Quercus variabilis

天然更新是森林演替的复杂的生态学过程,从母树结种、种子传播、种子发芽到幼苗生长的过程中都受到各种因素的影响。而栓皮栎天然次生林以萌生为主,大多为退化林分类型,退化原因不明,其中实生苗更新难是一个重要问题。本文着重总结了栓皮栎天然更新的影响因素,如立地条件、种子因素、子叶缺失和枯落物等。以期为栓皮栎天然更新提供理论依据,促进栓皮栎林分健康稳定生长。

Natural regeneration is a complex ecological process of forest succession,which is affected by various factors in the process of seed setting,seed propagation,seed germination and seedling growth.However,the natural secondary forest of Quercus variabilis is mainly copiated,and most of them are degraded stands,and the reason of degradation is unknown,among which the difficulty of seedling regeneration is an important problem.In this paper,the factors affecting natural regeneration of Quercus variflora were summarized,such as site conditions,seed factors,cotyledon deletion and litter.In order to provide theoretical basis for natural regeneration of Quercus variabilis and promote healthy and stable growth of Quercus variabilis stand.