基于加权和的多目标优化法在小流域治理中的研究

Research on Multi-objective Optimization Method Based on Weighted Sum in Small Watershed Governance

业内对于水土流失的研究多是以小流域为单位进行综合治理。小流域水土治理模式具有目标多样性、行业及参与用户综合性等特征,采用基于线性加权和的多目标优化法是在具体实践中通常用来将建立目标函数模型,按照重要程度设置各个目标的权重,从而将多目标转变成单目标进行求解,最后得到各项指标并做出定性评价,该方式在小流域水土保持综合治理中的研究与应用可以使治理方案得到优化。

Most of the research on water and soil loss in the industry is to carry out comprehensive control on a small watershed.Water and soil management modes in small watershed are characterized by diversity of objectives,comprehensiveness of industries and users involved.Multi-objective optimization method based on linear weighted sum is usually used to establish objective function model in practice.The weight of each target is set according to its importance,thus the multi-target is transformed into a single target for solution,and finally each index is obtained and qualitative evaluation is made.The research and application of this method in comprehensive management of water and soil conservation in small watershed can optimize the treatment scheme.