Increasing demand for water due to global population and economic growth will lead to severe global water shortage. Agricultural water consumes a large portion of water, and adjusting agricultural planting structure is one of the important means to realize agricultural water-saving. This paper took 2030 as the planning year and Shijin Irrigation District as the research area. Using the AquaCrop model, combined with field management, climatic and other conditions affecting crop growth and the yields of winter wheat, summer maize, and cotton under irrigation and rain-fed conditions were simulated in the planning year (2030). Taking the minimum consumption of agricultural irrigation water and the highest economic income as the goal, the planting structure adjustment plans of different hydrologic years are optimized under the limitation of water availability, cultivated land, and food security. The results showed that, after the adjustment of planting structure, the economy created by agriculture in the dry, normal, and wet year will increase by 0.1 billion yuan, 0.7 billion yuan, and 2.6 billion yuan, and the amount of irrigation is decreased by 42 million m³, 448 million m³, and 526 million m³, respectively.

由于全球人口和经济增长对水的需求不断增加，将导致全球严重缺水。农业用水消耗大量水，调整农业种植结构是实现农业节水的重要手段之一。本文以2030年为规划年，以石津灌区为研究区域。在计划年度（2030年）中，使用AquaCrop模型，结合田间管理，气候和其他影响作物生长的条件以及灌溉和雨水条件下的冬小麦，夏季玉米和棉花的产量，进行了模拟。以最少的农业灌溉用水和最高的经济收入为目标，在水资源，耕地和粮食安全的限制下，优化了不同水文年的种植结构调整计划。结果表明，调整种植结构后，干旱，正常和湿润年的农业经济将分别增加1亿元，7亿元和26亿元，灌溉量减少2％。 4200万米³，4.48亿米³，和5.26亿米³分别。