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树干解析法只需经一次测定,便能迅速再现树干各调查因子的历史生长过程,是研究树木生长过程的重要手段。但它的计算和绘图工作量大、繁琐、容易出错,成了应用中的一个障碍。现在 SHARP PC—1500计算机日益普及,它是计算绘图的良好工具。用扩展BASIC 语言所编成的这个树干解析计算绘图程序,对十个圆盘,七个龄阶的本例材料开机运行,仅七分钟就完成了树高、胸径、材积的各种生长量计算,打印及绘出纵剖图和树高、胸径、材积的有三种生长量的生长过程曲线图。不仅工效高,而且计算准确无误。
The tree trunk analytic method can quickly reproduce the historical growth process of each investigation factor of the tree trunk with only one measurement, which is an important method for studying the tree growth process. However, its computational and mapping workload, cumbersome, error-prone, has become an obstacle in the application. Now SHARP PC-1500 computer is increasingly popular, it is a good tool to calculate the drawing. The expansion of the BASIC language compiled by the trunk analysis and calculation of the drawing program, the ten discs, seven age of the materials in this case up and running, only seven minutes to complete the tree height, diameter, volume of various growth calculations , Print and draw longitudinal profile and tree height, diameter, volume of growth of three growth curves. Not only high efficiency, but also accurate calculation.