杉木出材量估测方法的探讨

Preliminary Study on Calculating Method of 0utput of Chinese Fir Timber

通过建立杉木树干曲线方程,利用胸径和树高估计树干任何部位的带皮、去皮直径,从而估测出材材种、出材量。经检验,标准地出材量的估测精度在95%以上。

Through setting up curve equation of Chinese Fir trunk, using breast-heightdiameter and tree height to reckon o. b and u. b diameter at any position of trunk, thuscalcalating species and output of timber. Appraiscd precision of output of timber is above95% through examination.