逐级优化的数学规划序列模型在林场合理经营中的应用研究

The Research and Application of Gradual Optimal Mathematical Programming Series Model to the Rational Management in Forest Farm

用逐级优化的数学规划序列模型解决林场合理经营中林种、树种与龄级三级结构的优化问题。把系统分成林种、树种及龄级结构三个层次,不同层次用不同目标的线性规划模型进行优化,组成序列方法。把众多的变量逐级予以分散,把不确定的因素逐级予以确认,最终获得彻底优化的系统结构。序列模型各级的解都是建立在优化的基础之上的,各级模型之间又有联系又相互独立。决策者可在各级模型的输入端输入所需的信息,调整方案,进行再分析,有利于系统工作者与决策者之间的联系。

The gradual optimal mathematical programming series model is applied to rational management of forest kind, tree species and age class in forest farm. The system, the forest farm, is classified into forest kind, tree species and age class and three hierarchies of them are optimized by different linear programmings. So long the series is formed. Many variables are scattered step by step, the undetermined factors determined step by step, the optimal system structure is thoroughly obtained at last. The solution of every hierarchy in the series models is based on optimization and they are both contact with and independent of each other. In the input point of every model the policy maker can input the informa- . tion he needed, then the problem can be re-analysed and the plan can be regulated again and again. That is good for the combination between po.-licy-maker and moder-maker. Finally, range is undertaken.