云南石梓(Le Gmelina arborea)种子在自然条件下保存1年后,发芽力大大减低,而人工保存由于种子入库前,已将霉烂种子除去,避免了发酵霉烂现象,提高了种子发芽力。在许多国家用直播方法营造云南石梓林获得成功。1921年Troup就介绍过印度直播造林经验。塞拉利昂在熟地和火烧迹地上进行云 After the seeds of Le Gmelina arborea were preserved under natural conditions for one year, the germination capacity was greatly reduced. However, due to the removal of the rotten seeds before the seeds were stored in the artificial storage, the phenomenon of mildew of the fermented seeds was avoided and the germination power of the seeds was increased. In many countries using direct broadcast method to build Yunnan Shihlin success. Troup in 1921 introduced live direct forest planting experience in India. Sierra Leone conducts clouds on reed and fire