对福建省五一国有林场杉木天然林地径与胸径进行回归分析,建立了回归模型。结果表明地径与胸径间存在着密切、显著的线性关系,回归模型的拟合优度和误差均很理想。研究结果为计算杉木材积提供了一个方便可行的方法。
Regression model for ground diameter and diameter at breast height (DBH)of Fir (Cunninghamia lanceolata) in natural forests in Wuyi State Farm was built and the results showed that there was a close straight regression between the ground diameter and DBH.Goodness of fit and error of the established regression model were very ideal.This provides a simple and feasible method to estimate volume of single tree.
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