淡竹立竹生物量计算模型构建

Construction of Biomass Model for Stand of Phylostachys glauca

根据淡竹生物学特征,以1~4年生淡竹立竹为研究对象,拟合了立竹年龄、地径、全高、生物量之间的关系模型。经检验,回归方程很好地反映出立竹地径是立竹全高及枝下高的决定因子,立竹年龄、地径及全高是立竹生物量的决定因子。在测算林分生物量时,可只测量地径和竹龄,以立竹地径与其他因子间的相关模型来推算立竹全高、枝下高、竹秆生物量及全林总生物量。

This paper constructed a mode to simulate the relation between the age, base diameter, total height and biomass of standing bamboo of 1-4-year–old Phylostachys glauca based on the biological features. The results showed that the regression equation can well reflect that the base diameter is the determining factor to the total height and the height under branch, while the age, the base diameter and the total height are the determining factors to the biomass. When measuring the stand biomass, the base diameter and bamboo forest age can be used to calculate the total height, the height under branch, culm biomass and the total biomass using the biomass model.