缺乏水文地质参数地区地表水、地下水联合调度研究

STUDY ON COMBINED OPERATION OF SURFACE AND GROUND WATER IN AREAS LACKING HYDROGEOLOGIC PARAMETERS

以内陆河流域下游干旱平原地区的水资源系统为例，采用二维单增量搜索动态规划方法探讨了该地区地面水、地下水的联合调度问题。在数学模型中，针对缺乏水文地质参数地区的特点，提出了地面、地下水库逐时段最大、最小可能蓄水量的计算方法，为求解迭代确定了更严格的状态容许域；同时，在递推方程中引入惩罚因子这种软约束，以保证优化过程中地下水的多年均衡。通过模型的求解，可得出计算区的最佳灌溉面积、夏粮种植比以及水库的优化调度图。

By using two dimensional dynamic programming of single increment search,this paper presents an optimal model for combined operation of surface and ground water.The model is applied to the water resources system of arid plain area in endorheism.In considering the peculiarity of areas lacking hydrogeologic parameters,a method of calculating the maximum and minimum permissible store water of surface and ground reservoir in every period is proposed,thus stricter permissible space of state is defined.In order to satisfy the balance of groundwater in many years,a punitive factor is introduced in recursion equation.According to the proposed model,we can obtain optimal irrigated area,scale of summer grain crops and scheduling diagrams of reservoir.