Abstract:Three plots of CyclobalanoPsis glauca populations suffered to different extent from flood disturbance in valleys of Huangshan Mountain, Anhui Province, were chozen to study the seedling characteristics of the populations. The results showed that one of the plots, i.e.plot 3, which was least disturbed by the flood had more seedlings than the others, the population density of the seedlings being 0.5825 individual m-2. The density in plot 1 being heavily suffered from the flood was 0.1 150 individual m2 only, but the proportion of seedling sprouts was the highest in this plot. In all the three plots, the percentage of seedling sprouts increased with the seedling height. The distribution of seedling sprout height was nearly symmetric and platykurtic, but was positively skewed for the seedling plants. All the Gini coefficients were high (0.503l -0.5623), indicating that the size inequality was large.The seedling sprouts in all plots were in clumped distribution, while the seedling plants in plot 2 and 3 were in random distribution. However, clumped distribution was found in plot 1 for seedling plants distributed at higher edge due to the flood disturbance. It is concluded that C. glauca populations at sites disturbed by flood regenerated mainly by vegetative propagation instead of sexual propagation.
