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本文以林分生长模型为基础，将林分蓄积量年平均生长量作为目标函数，应用三次设计的方法建立杉木人工林经营过程控制系统，以辅杉木人工林造林设计及其经营过程的最优决策管理．利用此控制系统只需输入立地指数（ｓ）即可对杉木人工林在该立地条件下的最佳初植密度、间伐次数、间伐时间、间伐强度和主伐年龄进行最优决策．该控制系统既可对杉木人工林林分进行生长预测，也可为制定经营方案提供参考依据．
Based on the stand growth model, taking the average annual growth volume of stand volume as the objective function, a three-time design method was used to establish a management system of Chinese fir plantation management system. Based on the afforestation design and management of the Chinese fir plantation Decision management. With this control system, the optimal planting density, the number of thinning times, the thinning time, the thinning intensity and the cutting age of Chinese fir plantations can be optimized by inputting the site index (s). The control system can not only forecast the growth of Chinese fir plantation, but also provide reference for formulating management plan.