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本文应用计算机技术探讨杉木人工林经营的计算机辅助系统，以辅助福建省杉木人工林的经营管理活动，从而使杉木人工林经营效果达到收获最大、效益最佳．本辅助经营系统是在福建杉木人工林特殊的整地方式和抚育措施的基础上，综合考虑不同立地指数、竞争、不同间伐时间、间伐强度及间伐次数对杉木生长的影响而建立的，该系统能对杉木人工林生长进行动态预测，并反馈在合理最优密度下的间伐时间和间伐强度，通过及时抚育间伐控制立木株数来保证林木始终处于最优生长空间；并对其进行经济效益分析，从而辅助指导杉木人工林的经营活动．用８０块模外样地调查资料对生长模型进行了Ｆ检验和Ｕ检验，模型预测精度较高，可以用于指导林业生产实践活动．
This paper applies computer technology to discuss the computer-aided system of Cunninghamia lanceolata plantation management in order to assist the operation and management of Cunninghamia lanceolata plantation in Fujian Province, so as to maximize the management effect of Cunninghamia lanceolata plantation and achieve the best benefit. Based on the special land preparation and tending measures of Firs plantation in Fujian Province, this auxiliary management system is based on the comprehensive consideration of the influence of site index, competition, different thinning time, thinning intensity and thinning frequency on Chinese fir growth. Dynamic prediction of the growth of Chinese fir plantation was conducted, and the thinning time and thinning intensity at a reasonable optimal density were fed back. By controlling the number of standing wood in time, the tree was always kept in optimal growth space. The economic benefit analysis Assist in guiding the management of Chinese fir plantation. 80 samples of out-of-body survey data were used to carry out F-test and U-test on the growth model. The prediction accuracy of the model is high and can be used to guide forestry production practice.