【摘要】 本文以白草沟小流域为例,应用系统工程原理进行系统诊断,建立了多目标数学规划模型,在满足目标函数,即经济纯收入最大、土壤流失量最小、投资最少、生物量最大的情况下,求出模型的最优解。更多还原

【Abstract】 The principle of system engineering is used to diagnose White-Grass Gully watershed systematically, and multi-objective planning mathematical model is constructed. The optimal solutions of model are obtained when the objective function, that is, greatest pure economic income, least soil loss, minimum investment and maximum biomass, is contented.更多还原