节水灌溉管理与决策支持系统

基于灌区灌溉用水过程的复杂性和实时性，研制了节水灌溉管理与决策支持系统软件。系统根据采集到的气象、土壤水分、作物、水资源状况等信息，运用作物系数法进行作物需水量的计算，根据土壤墒情决策模型，作出灌溉预报，确定精确的灌溉时间和最佳灌溉水量，利用决策结果对灌溉设备进行自动控制与监测，从而达到高效、节水的目的。该系统不仅具有数据录入、编辑、查询、统计、输出等信息处理功能，而且能够根据采集到的信息为灌区管理和用水户提供灌溉优选和水资源优化分配的决策支持，制定精细灌溉的作业方案。该系统立足田间，面向农户，可以为用户提供节水灌溉模式咨询、具体方案优选、指导灌区优化灌溉等功能，具有较强的推广应用价值。

Water-saving irrigation management and decision support system

In the light of the complexity and real-timeliness of water use management in farmland irrigation, the software for water-saving irrigation management and decision support system was developed. Based on the collected information such as weather, soil moisture, crops and water resources situation, the water requirement of the crop was calculated by using the method of crop coefficient. According to the decision-making models of soil moisture, the irrigation prediction could be made to determine the accurate irrigation date and optimum irrigation amount by the system. Meanwhile, the irrigation equipments were automatically controlled and monitored to realize the aim of high-efficiency and water saving according to the results, which were obtained from the decision-making model. The system not only had the functions of input, editing, querying, statistics, outputting, etc., but also could provide the decision support of irrigation optimization and optimal allocation of water resources for irrigation management departments and water users. The system could also make the precision irrigation schemes. It can provide with the functions such as the consultation of water-saving irrigation mode, the selection of the optimum irrigation schemes, and guiding optimum irrigation for users in irrigation districts. The system has higher value in its application and popularization.