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对贵州省撑绿竹栽培区13个县(市)67个点342株样株胸径、株高、枝下高以及竹材质量的实测值,分别以胸径、株高、枝下高为自变量(x),以竹材质量(Y)为因变量,采用一元线性、二次函数、三次函数、幂函数、指数函数等数学模型分别拟合它们之间回归方程,并对方程进行差异显著性检验,经分析比较选择因变量竹材质量(Y)与自变量胸经(x)建立的回归模型Y=1.093-0.788X+0.315X2编制贵州省撑绿竹竹材重量表,在生产上具有可靠和简洁实用的优点。
The DBH, plant height, shoot height and the bamboo quality of 342 samples from 67 counties in 13 counties of Guizhou Province were studied. The DBH, plant height and branch height were independent variables x) and bamboo (Y) as the dependent variable, the linear regression equations, quadratic functions, cubic functions, power functions, exponential functions and other mathematical models were used to fit the regression equations respectively. By analyzing and comparing the regression model Y = 1.093-0.788X + 0.315X2 established by choosing the dependent variable bamboo quality (Y) and the independent variable thoracic (x), the bamboo weight chart of Guizhou Beijiao bamboo was prepared, which was reliable and concise in practice The advantages.