关键词: 箣竹；生物量分配格局；秆形结构特征

Abstract:

【Objective】The purpose of this study was to investigate the distribution pattern of above-ground biomass and culm form characteristics of B. Blumeana, which may be helpful to provide a theoretical reference and data support for its development and utilization. 【Method】The investigation method of Phyllostachys pubescens and statistic software of SPSS were used in this study. 【Results】Among the above-ground organs, the moisture content of leaves (49.8%) were much higher than those of other organs. Culm dry biomass was 73.5%, which was much greater than those of branches (15.1%) and leaves(11.4%). The indicators of culm characteristics in this study mainly included culm height, diameter at breast height (H_DB), culm weight, culm taper, wall thickness and internode length. The model of culm height (y/m) to H_DB(x/cm) was y = -0.4197x² + 9.0749x -27.817 (R² = 0.9586). The model of fresh culm weight (y/kg) to H_DB (x/cm) was y = 0.1454x^2.4616 (R² = 0.9703). The model of wall thickness (y/cm) to culm height (x/m) was y = 0.9897x^-1.0175 (R²= 0.9717). 【Conclusion】Biomass distribution pattern and culm form characteristics were important indicators which determined the direction of utilization and processing. This research provides a theoretical reference for the development and utilization of B. Blumeana.