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对云南４种典型的材用丛生竹（龙竹Ｄｅｎｄｒｏｃａｌａｍｕｓｇｉｇａｎｔｅｕｓ，甜龙竹Ｄｅｎｄｒｏｃａｌａｍｕｓｂｒａｎｄｉｓｉ，黄竹Ｄｅｎｄｒｏｃａｌａｍｕｓｍｅｍｂｒａｎａｃｅｕｓ，油勒竹Ｂａｍｂｕｓａｌａｐｉｄｅａ）的维管束密度、纤维比量、密度、含水率、干缩率、顺纹抗压强度和弦向抗弯强度的检测结果认为：４种竹材之间和同一竹种内径向、弦向和纵向上的结构和物理力学性质的分布存在着较大的差异。对结构指标与主要物理力学性质之间关系的分析结果认为：纤维比量比维管束密度与竹材物理力学性质的关系更为密切；４种竹材的纤维比量与密度、弦向抗弯强度和顺纹抗压强度呈正比关系，与饱湿含水率呈反比关系。
Fiber bundle density, fiber volume, density, moisture content, shrinkage rate, and grain resistance of four typical bamboo species (Dendrocalamus giganteus, Dendrocalamus brandisi, Dendrocalamus membranaceus, Bambusalapidea) The test results of the compressive strength and the chordal flexural strength show that there is a big difference in the distribution of the structural and physical-mechanical properties in the radial, chordwise and longitudinal directions among the four bamboo species and the same bamboo species. The results of the analysis of the relationship between the structural indexes and the main physical and mechanical properties indicate that the fiber ratio is more closely related to the physical and mechanical properties of the bamboo. The fiber proportion and density, the chordwise bending strength, The compressive strength of the grain is proportional to the relationship, and the moisture content is inversely proportional to the ratio of wet.