灰色线性规划在花溪区牧业结构优化中的应用

Application of Grey-Linear Programme for Optimization of Livestock Structure in Huaxi

利用系统分析的方法，经实地调查，建立了花溪区畜（禽）种群结构优化模型。以净收入最大为目标函数，以饲料资源和劳动力为限制条件，构造了一个灰色线性规划模型，用以计算最优畜禽结构。为此，设立了１２个变量，２６个约束方程。通过计算机运行，得到４个优化方案。并应用模糊综合评判方法，对优化方案进行评估，找出了一个最佳优化方案，与现状相比，可提高经济效益２０．８％。

The Grey-Linear Programme model for livestock structure in Huaxi district was established by investigation on the spot and systematic analysis method in this paper. Grey-Linear programme model was set up to determine the optimal structure of livestock and poultry. We chose maximum net return of production as the objective function and considered the inhibitory factors of natural resources of forage and labour avaibility. 12 variables and 26 constraint equations were established. And 4 optimal programmes had been determined by calculation of computer. The best optimal structure of livestock population was selected according to comprehensive and fuzzy evaluation. The economic efficacy would be increased by 20. 8% if this programme was put into practice.