现行的永续计算是模拟将来的采伐更新和林分生长,通过反复试算来决定标准采伐量,这种算法的计算量大,而且受人为主观因素的影响。本文提出一种无反复试算确定永续采伐计划和标准采伐量的永续计算法。首先,通过一个轮伐期的永续计算,得到将来龄级结构的变化和有关采伐更新可能性的 The current perpetual calculation is to simulate future harvesting and stand growth and to determine the standard harvest by trial and error. This algorithm is computationally intensive and subject to subjective human factors. This paper presents a non-repeated trial to determine the perpetual harvesting plan and standard harvesting of the perpetual method. First, through a perpetual calculation of the rotation period, the future age-class structure changes and the possibility of harvesting renewal