【摘要】 本文从Richards方程的基础——Bertalanffy生长理论对树木生长适用性的分析出发,从理论上探讨了Richards方程作为描述树木生长方程的适用条件和局限性;从树木组成结构——心、边材的特点出发,构造了一种新的树木生长方程:该生长方程满足作为理论生长方程所应有的解析特性,而且克服了Richards方程的不足.文中还对心、边材比率变化过程的假设进行了验证.更多还原

【Abstract】 A new theoretical tree growth equation has been derived based on the analysis of Richards equation and the dynamics of the ratio between tree alburnum weight and its total weight. The new equation may describe tree growth process more reasonably than Richards equation. Its parameters can be biologically explained.更多还原