Abstract
In order to convert the stand wood volume into the merchantable stand volume, the merchantable ratios at culm- and stand-levels were determined for one of the most famous bamboos, Phyllostachys pubescens Mazel ex Houz. First, the merchantable ratio at culm level for each merchantable diameter was determined using the data of 200 felled culms. As the diameter at breast height increased and the merchantable diameter decreased, the merchantable ratio became higher. The combination of the determined ratio and the one-way volume table constructed in a previous study enabled us to develop a one-way merchantable volume table for P. pubescens. Second, the merchantable ratio at stand level was determined based on the ratio at culm level using the data collected from 30 plots. The merchantable ratio at stand level became higher as the merchantable diameter decreased. The result also suggested that we should pay an attention into the change in the ratio at stand level with the mean diameter at breast height. The determined merchantable ratios will be effective when converting the stand wood volume into the merchantable stand volume for P. pubescens.
