摘要
目前有些水土保持线性规划中数学模型参数的确定不准确,不仅影响了土地的利用方向,而且还影响了优化方案的选择。造成参数确定不准确的原因主要是对各种参数的涵义不理解,误把投入产出定额当成投入产出系数,把农产品价格当作目标函数系数。针对这一问题,作者用实例探讨了各种实际生产情况下约束条件系数和目标函数系数的确定和计算方法。
The imprecise determination of parameters in the mathematical model of linear program for soil and water conservation not only influenced the direction of land utilization but also influenced the selection of opti-mized schemes. The author considers that the reason leading to the imprecise determination was the misun-derstanding of meanings of parameters, for example, the input-output quota was regarded as input-output coefficient and the price of farm product as coefficient of the objective function. In light of this, the author probes into the determination and calculation of cofficients of the constraint condition and objective function under different actual conditions.
出处
《中国水土保持》
北大核心
1992年第6期40-43,共4页
Soil and Water Conservation in China
关键词
水土保持
规划
线性规划
数学模型
linear program mathematical model soil and water conservation
