Abstract
This study aims to obtain fundamental data for the appropriate conservation and management of future forests by investigating the growth characteristics of trees which were planted about 30 years ago, using volume index and aspect ratio values as the indices based on their height data and basal area at breast height to each tree measured in August 2004 in a buffer greenbelt in Himeji City, Hyogo Prefecture. As a result, the material volume index of Quercus glauca and Castanopsis cuspida in the high tall layer was more than 12 m3, and which proved that these species, consisting of the regional potential, showed a tendency to dominate. The growth of the sub-tree layer differed depending on the co-existing species in the high tall layer, and Myrica rubra showed a stable hierarchical structure with ,Quercus glauca.
