Results and Discussion
Aboveground biomass was estimated at the different forest types in order to indicate the proportion of biomass.
It was found that DBH and height of trees were distributed among different size classes. The size class characteristics of three different forests a compared in Figure 2, and showing the relationship between DBH and tree density in each size class.
This would tend to make the biomass differences even greater.
The frequency distribution curves of DBH were all L- shaped, the frequency patterns were more or less exponentially
decreasing toward larger diameter classes with a maximum at the left end or smallest DBH size classes.