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应用分形维数对样带内乔木种群的龄级结构进行研究 ,探讨了植物种群龄级结构动态干扰条件下的敏感性 ,进行了种群龄级结构的稳定、衰退、增长变化分析。研究结果表明 :样带各地段辽东栎种群均为优势种群 ,各龄级个体空间占据能力强于其它种群 ;大叶白蜡种群的龄级随海拔升高趋于丰富、五角枫种群的龄级趋于单一。所有乔木种群的龄级结构均为年轻的增长型 ,种群增长性 (Vpi)、干扰敏感性大小差异很大 ,与龄级数量和空间分布呈负相关。
The fractal dimension was used to study the age-class structure of the tree population in the transect. The sensitivity of age-class structure of the plant population under dynamic disturbance was also discussed. The stability, decline and growth of the age-structure of the population were analyzed. The results showed that the populations of Quercus liaotungensis were the dominant species in all the transects, and the individual space occupancy of each age class was stronger than that of the other populations. The age class of the large-leaved Ash population tended to be more abundant with altitude, In a single. Age structure of all tree species were young growth type, population growth (Vpi), the size of the interference sensitivity vary greatly, and age class size and spatial distribution was negatively correlated.