【摘要】 天然阔叶红松林的红松种子经过动物活动的处理,在林内呈四个层次的垂直分布。其中在地被物下是以簇状埋藏着,数量相当多。尤其在红松密林中高大树木的周围,这些簇状分布的种子成为红松天然更新的基础。在次生阔叶林中红松种子埋藏量则很小。而埋藏位置与红松幼苗适生生境的不吻合是红松天然更新的主要障碍。更多还原

【Abstract】 The research on the Korean pine seed bank was conducted in the Liangshiu Korean pine forest natural reserve. Heilongjiang province, from 1982 to 1985. The total 982 quadrats of one square meter were investigated. The results show that the Korean pine seeds were distributed on the four vertical layers through the activities of wildlife. A lot of Korean pine seeds are buried with form of cluster. In the litter or soil around tall Korean pine. Most of seed clusters consist of 2—7 seeds. These buried seeds are the basis of the Korean pine natural regeneration. But unfortunately the place of seed burying is around the big trees in the dense forest. The number of korean pine seeds buried under the forest gaps is very small. Where seed buried is not favourable for the growth of Korean pine seedlings. This is the main obstacle to the Korean pine natural regeneration.更多还原