论文部分内容阅读
以江西三清山浙江楠群落为调查对象,在野外样方调查获取资料基础上,对浙江楠种群径级、高度级、种群动态和种群分布格局进行分析.结果表明:浙江楠种群径级结构呈橄榄型;高度级结构呈金字塔型和年龄结构呈橄榄型,幼苗严重不足,具有逐步衰退的趋势;种群更新主要靠种子繁殖;种群的空间分布格局呈聚群分布;分布格局动态由幼苗、幼树的聚群分布向中树、大树的随机分布的扩散趋势.
Based on the data obtained from the field sampling in the southern mountain community of Sanqingshan, Jiangxi, China, the population size and population dynamics of Populus simonii and its population distribution were analyzed.The results showed that the diameter structure of P. korshinskii was Olive Type; the high-level structure was pyramid-type and age structure was olive-type, a serious shortage of seedlings, with a gradual recession trend; population relies mainly on seed breeding; population spatial distribution pattern was clustered distribution dynamics of seedlings, saplings Of the cluster distribution to the tree, the distribution of trees random distribution trend.