为深入理解甘肃河西内陆盆地水循环中地表水与地下水的相互转化机制，进而为水资源管理提供科学依据，通过运用长期水文数据并结合WEAP-MODFLOW模型的方法，对讨赖河流域的地表水与地下水交互作用及其调度影响进行分析。结果表明：模型模拟的地下水开采量（2.46 × 10⁸ m³）与实际开采量（2.5 × 10⁸ m³）高度吻合，误差仅约1%，验证模型在地下水开采模拟方面的有效性；在预测的2030年用水情景下，若无水库调节，地表水和地下水的供水量将分别为3.840 × 10⁸ m³和1.982 × 10⁸ m³，显示出地下水存在一定的负均衡问题。讨赖峡水库的库容变化对地表水供水能力具有显著影响，库容增加能有效提升地表水的调节和供水能力，从而减轻地下水系统的负担。采用优先使用地表水的调度规则对地下水均衡产生了积极影响，有助于缓解地下水系统压力并保护地下水资源。可见，讨赖河流域内水文周期具有显著变异性，且洪水河与讨赖河的水文特性存在明显差异，这强调了实施区域化水资源管理策略的必要性。

To gain a deeper understanding of the interaction between surface water and groundwater in the water cycle of the inland basins of the Hexi region in Gansu Province, and thereby a scientific basis was provided for water resource management, the interaction and scheduling impacts of surface water and groundwater in the Taolai River Basin using long-term hydrological data combined with the WEAP-MODFLOW model were analyzed. The results indicate that the simulated groundwater extraction volume (2.461 × 10⁸ m³) closely aligns with the actual extraction volume (2.5 × 10⁸ m³), with an error of only about 1%, validating the model's effectiveness in simulating groundwater extraction. Under the projected water use scenario for 2030, without reservoir regulation, the surface water and groundwater supply volumes would be 3.840 × 10⁸ m³ and 1.982 × 10⁸ m³ respectively, revealing a certain groundwater imbalance issue. Changes in the storage capacity of the Taolai Gorge Reservoir significantly affect the surface water supply capacity, with increased storage effectively enhancing the regulation and supply capacity of surface water, thereby alleviating the burden on the groundwater system. Adopting a scheduling rule that prioritizes surface water use has a positive impact on groundwater balance, helping to mitigate pressure on the groundwater system and protect groundwater resources. Evidently, the Taolai River Basin exhibits significant variability in its hydrological cycle, and there are distinct differences in the hydrological characteristics between the Hongshui River and the Taolai River, highlighting the necessity for implementing regionalized water resource management strategies.