目前,分析树木高度、直径、材积、形数等因子的变化规律,多用树干解析法。但是,用解析法求出的年令(或令阶)的树高和以其推算出的其它因子数值,并不能完全准确地反映实际情况。例如某一年令的树高是利用相邻两个园盘之间的比例关系求出的,而实际并非如此。再者,利用现行的树干解析法确定年轮数时,往往容易查错。 At present, analysis of the height, diameter, volume, shape and other factors of the law of change, multi-tree analysis. However, the tree height of the year (or order) obtained by analytic method and other factor values ​​calculated therefrom do not fully reflect the actual situation. For example, the tree height of a year is calculated by using the proportional relationship between two adjacent discs, which is not the case. Furthermore, it is often easy to check mistakes when determining the number of annual rings using the current tree trunk analysis method.