黄河来水与渠首可引水量预测模型

近年来，黄河水资源日趋紧缺，断流天数不断增加，断流时间不断提前，断流距离不断上延；同时，灌区用水量逐渐增加，水的供需矛盾突出。因此，在引黄灌溉时，借助于微机技术，及时对黄河来水与渠首可引水量进行预测，成为灌区用水管理中亟待解决的问题。好位山灌区在这方面的经济及做法。

Model for Predicting Incoming Flow from Yellow River and Available Diversion Flow at Headrace

In recent years, water resources of the Yellow River tend to shortage day by day. The starting time of zero flow is shifted to an earlier date continuously. The zero flow distance is extended upwards continuously. At the same time, the water consumption quantity of irrigation districts is increased continuously. The contradiction between water supply and demand is conspicuous. Therefore, when irrigating by water diversion from the Yellow River, the incoming flow of the Yellow River and available diversion flow at headrace are predicted in good time by using microcomputer technology, it will become a problem demanding prompt solution in water consumption management of irrigation districts. Finally, the experience and method of the Weishan Irrigation District in this aspect are described. [