黄河下游影响带地下水三维数值模拟

该论文"黄河下游影响带地下水三维数值模拟"是国家科技部重点基础研究发展规划项目"黄河流域地下水可再生能力变化规律研究"(G1999043606)的一个子课题.在查明研究区地质背景、水文地质特征的基础上，采用地下水流场、地下水动态类型及同位素分析等综合研究方法，确定了黄河下游(花园口——入海口)河水影响带范围，并在此基础上建立了水文地质概念模型和数学模型;利用三维数值模拟技术，首次对整个黄河下游影响带地下水进行仿真模拟，进行了地下水补给资源、可开采资源以及地下水资源潜力的评价;最后，模拟黄河断流情况下，区域地下水位的变化及其对地下水资源产生的影响，为黄河下游沿黄地带水资源的合理配置提供了依据。

The paper titled *Three-Dimensional Numerical Simulation of Groundwater in the Impact Zone of the Lower Yellow River* is a sub-project of the Key Basic Research and Development Plan Project of the Ministry of Science and Technology of China, titled *Study on the Variation Laws of Renewable Groundwater Capacity in the Yellow River Basin* (Grant No. G1999043606). Based on clarifying the geological background and hydrogeological characteristics of the study area, comprehensive research methods including groundwater flow field analysis, groundwater regime classification and isotope analysis were adopted to determine the scope of the river water impact zone in the lower reaches of the Yellow River (from Huayuankou to the Yellow River estuary). On this basis, a hydrogeological conceptual model and a mathematical model were established. Using three-dimensional numerical simulation technology, the study conducted the first simulation of groundwater in the entire impact zone of the lower Yellow River, and evaluated the groundwater recharge resources, exploitable groundwater resources and groundwater resource potential. Finally, the study simulated the changes in regional groundwater levels and their impacts on groundwater resources under the condition of Yellow River cutoff, providing a basis for the rational allocation of water resources in the zone along the lower Yellow River.