三江平原低山丘陵区水曲柳无性更新—伐根萌芽更新进行了初步研究 ,以不同径、高的伐根所产生萌生枝数量、基径与高度为指标 ,探讨了该更新方式的规律与动态 ,得出由伐根萌芽所产生的萌枝数量与伐根径的变化呈多项式分布关系 ,与伐根高的增大呈对数分布关系 ,且对水曲柳萌生枝的动态做了初步分析得出其萌生枝可代替主干形成高大树木。 Asexual regeneration of Fraxinus mandshurica in the hilly area of ​​the Lower Reaches of the Sanjiang Plain - A preliminary study on the regeneration of sprouting buds was conducted. The number of shoots, base diameter and height of cuttings from different diameter and height were taken as indices to discuss the regularity of this renewal pattern and The results showed that there was a polynomial distribution relationship between the number of sprouting branches and the root diameter of spruce root and the logarithmic distribution of spruce root height. Analyzed that its sprouting branches can replace the trunk to form tall trees.