小河沟水文站产汇流特性分析

Analysis of Runoff Characteristics of Xiaohegou Hydrological Station

本文根据流域内实测暴雨洪水资料，分析小河沟水文站、马鹿塘、太阳寨等5个雨量站的暴雨特性【均具有暴雨强度大、历时短、笼罩面积小等特点），结合流域内暴雨时空分布规律，依据下垫面条件，采用蓄满产流机制分析产流，推理过程线法分析汇流【1】，并用小河沟水文站实测暴雨洪水资料进行检验，通过曲线精度评定，结果表明：蓄满产流机制在热带湿润山区是适用的，产汇流参数具有规律性，可供相似流域无资料地区移用或参考。

According to the information of the rainstorm and flood measured in river basin, the features of rainstorm in five precipitation stations which are Xiaohegou hydrologic station, Malutang and Taiyangzhai and other two stations are analyzed, and the features are high intensity, short duration and small area covered by rainstorm. Based on space-time distribution pattern and the condition of underlying surface, I apply the runoff yield under saturated storage to analyze runoff yield and apply the reasoning process to analyze junctions [1], use the information of the rainstorm and flood of Xiaohegou hydrologic station to examine, and use curve precision to do evaluation. The results show： the runoff yield under saturated storage is suitable for the use in tropical and humid mountainous area. Runoff yield and concentration parameters have its regularity, and similar river basins or areas without the information could use the conclusion or use it as a reference.