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本文以沙地云杉种群的静态生命表、生殖力表为基础，运用Ｌｅｓｌｉｅ种群增长模型，预测了小腾格里沙地白音敖包地区有代表性的藓类云杉林中云杉种群的动态增长过程，揭示了沙地云杉各龄级植株的动态规律。结果表明：沙地云杉为缓慢增长型种群；种群的净增殖率、内禀增长率及周限增长率较高，而种群的世代周期及加倍时间偏低；在５０年内种群１年生幼苗的数量及种群的总数量表现出持续递增的趋势，且种群总数目的变化幅度较小。
Based on the static life table and the fecundity table of Picea mongolica population, Leslie population growth model was used to predict the dynamic growth of Picea mongolica population in the representative moss spruce forest in Baiyin Aobo area in the Little Tengger Sandy Land , Revealing the dynamics of plants of all ages in the sand spruce. The results showed that the spruce sandy sandy land was a slow-growing population. The population net growth rate, intrinsic rate of increase and the rate of peri-growth were high, while the population generation period and doubling time were low. The total number of the population and the population showed an increasing trend, and the total number of the population changed less.