中文摘要：

为探讨农业节水灌溉的尺度问题，常借助水文模型模拟研究灌溉系统的水分循环以及水量平衡要素的变化规律。SLURP模型具有一定的物理基础，能够充分利用RS／GIS空间信息，考虑灌溉系统内大坝、水库、取水设施等影响，模拟不同地质、土壤、植被以及不同管理措施情况下的灌区水分循环。阐述了SLURP模型的原理、结构和功能和模型参数，总结了模型在国外灌区的应用研究现状及其进展。结合灌区水管理研究的经验，分析了模型存在的不足，对模型在灌区水管理及节水灌溉策略分析中的应用前景进行了展望。

英文摘要：

In order to study the scaling effect of agricultural water-saving irrigation, the application of hydrologic model is an effective way to explore the hydrological cycle and the variation of elements of water budget in the irrigation system. As a physically-based basin model, which makes full use of RS/GIS data, SLURP simulates the hydrological cycle of irrigation system under different soil types, land use, topographic situation and management conditions including the effects of reservoirs, dams and water extractions. Based on the illustration of modeling principles, structures, functions and parameters, the current applied research and the advance of the model is summarized in this paper. Based on the water management practices in irrigation districts, their advantages and disadvantages are analyzed. And the application prospect of SLURP model in water management and strategy analysis of water-saving irrigation is also demonstrated in this paper.