Study on the Structure of Culm Form of Bambusa wenchouensis

The structure of culm form of Bambusa wenchouensis was studied, including culm height, culm weight, culm taper, wall thickness and internodal length etc. Compared with moso bamboo, the research results showed that if their breast diameters (D) were equal, B. wenchouensis had a higher stem, weightier culm, a little smaller taper and thicker wall, although its wall thickness decreased more quickly than moso bamboo as culm height increases. The best structural model of fresh culm weight (M) was M = 0. 232 7 (DBH)2.189 9, and the relation between its internodal length and culm height could be distributed with conic. When the breast diameter ranges from 4 to 11 cm, internodal length could reach the maximum of 50-65 cm as the node was 10 - 15.