湿地松林分产脂量表的编制

The Compilation of Gum Yield Prediction Table of Pinus elliottii Stand

以193株采割松脂的湿地松为材料，每株用105个单刀的产脂量．共2万余个数据为基础．经分析计算得出胸径和冠幅是影响湿地松产脂量的主导因子．并以胸径和冠幅、胸径为解释变量，分别求出湿地松林分产脂量的预测模型．编制出湿地松一元、二元产脂量表．经检验平均误差均小于±3．5％．

By using 193 Pinus elliottii trees as the subjects,taking the gum yield of 105single-streaks per tree as a sample and handling totally twenty thousand datums, thebreast height diameters and crown diameters have been calculated and determined as leading fact0rs influencing the gum yield. With the breast height diameters and crown diameters considered as interpretative variables,a model to predict the gum yield of Pinus elliottiistand has been established. According to the model, one-variable and two-variable gumyield tables have been compiled. The average leeway is less than ±3. 5%.