Culm Form Structure of Natural Bambusa burmanica from Tongbiguan Nature Reserve
This paper investigated several factors of Bambusa burmanica from Tongbiguan nature reserve in May,2013,such as culm height (H),clear bole height (h),diameter at breast height (D),base diameter (d),culm weight (G),segmented stem weight (g),internode diameter (dj ),joint amount (N)and wall thickness (T).Comparing the culm structure between Bambusa burmanica and Phyl-lostachys pubescens ,the study results indicated that the model of d to D was ln (d)=ln 1.406+0.885 ln (D)(R 2 =0.880);the model of G to D was ln (G)=ln 86.544+2.797 ln (D)(R 2 =0.907);the model of T to Hx was T=3.487-0.433 ln (Hx) (R 2 =0.832);the model of dj to Hx was dj =8.803-0.004 Hx (R 2 =0.745 ).Significant correlation relationship was found among these data groups,but not be-tween the rest factors. When the diameter at breast height was equal,the culm height and culm weight of Bambusa Burmanica were greater than those of Phyllostachys pubescens .The internode length of Bambu-sa burmanica was much longer than that of Phyllostachys pubescens from the root to 33th bamboo joint. Compared with Phyllostachys pubescens ,higher efficiency and great development potential of Bambusa burmanica was showed in the utilization and processing of bamboo timber.
Bambusa burmanicaculm form structurecorrelationTongbiguan nature reservePhyllostachys pubescens