中文摘要：

降雨的时空分布对于整个水文过程起着至关重要的作用。降雨喷淋控制系统作为包气带土壤水分运移规律水文物理模拟试验平台的重要组成部分,为模型试验提供模拟降雨。该试验利用降雨喷淋控制系统在不同阀门开度和喷头组合条件下产生了7组不同的模拟降雨,并对降雨强度的时空分布进行实际测定与计算。结果证明,降雨喷淋控制系统所生成的模拟降雨是符合试验的精度要求,并且得到系统可控雨强范围内的配比结果。该结果可用于指导今后的水文模拟过程中特定雨强范围内的降雨方案选择。

英文摘要：

The spatial and temporal distribution of precipitation,as an input item,is of great importance to hydrological simulation.Hense the rainfall control in the experiment is also important.Rainfall sprinkler system is an important component of hydrological physical experiment platform which can be used for unsaturated soil moisture transmission research.It provides artificial rainfall needed in experiment.By determining and calculating the 7 groups of rainfall generated under the conditions of various combination of valve opening and the nozzle,the reliability of the system was proved and we can finally get a result of ratio control for a variety of rainfall intensity,which can be used as alternative solution in hydrological simulation.