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一、前言本文是根据在标准地上进行每木拔锥法,所测得的胸高直径外侧一厘米内的年轮数,利用 Pressler 氏材积生长率公式,对天然林的材积生长率进行初步探讨。到目前止,据本人所知,在测树学的领域中,还没有一种能保证百分之百的正确求得林分材积生长率的方法,只能求得在某种程度上的近似值。本文中所用的公式和某些计算方法。还大有商讨的余地。为了对材积生长率得出比较可靠的数值,作者还准备蒐集更多的材料尤其是树干解析的材料,用后述的各种公式及
I. Introduction This article is based on the standard on the ground for each pyramid method, the measured height of chest diameter of one centimeter within the number of annual rotation, using Pressler’s volume growth rate formula, the volume of natural forest growth rate was discussed. To date, to the best of my knowledge, in the field of tree surveying, there is no method that can guarantee 100% correct growth rate of stand volume and can only be approximated to a certain extent. The formulas and some calculations used in this article. There is still room for discussion. In order to obtain a more reliable numerical value for the volume growth rate, the author is also prepared to collect more materials, especially the material of trunk analysis, using various formulas described later and