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 (DBH),culm weight,culm taper,wall thickness and internode length.The model of culm height (y/m) to DBH (x/cm) was y=-0.419 7x²+9.074 9x-27.817 (R²=0.958 6).The model of fresh culm weight (y/kg) to DBH (x/cm) was y=0.145 4x^{2.461 6} (R²=0.970 3).The model of wall thickness (y/cm) to culm height (x/m) was y=0.989 7x^{-1.017 5} (R²=0.971 7).[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.

Key words: Bambusa blumeana, biomass distribution, culm form