流域产流事件模型──论水文模型的简化

Basin Runoff Yield Model──On simplification of Hydrology Model

本文着重流域产流的主要环节，以流域下渗容量分配曲线与产流过程的关系为依据，吸收斯坦福流域水文模型的优点，简化总体结构，改进提高，减少模型参数，并与常规的前期影响雨量算法结合起来，建立流域产流事件模型。此模型只有４个优选参数，它克服了现有模型计算复杂和难于掌握应用等缺点，力求简便易行，能用于实际洪水预报，提高使用效果。在汉江支流丹江和洵河两个流域应用此模型，共模拟了２１年１０２次洪水，并用６年２６次洪水资料检验模型；又在汉江月河与渠江州河东林站应用此模型，它们的产流合格率均达８０％以上，经验表明，此模型简便易行，使用效果好，是值得研究推广的新模型。

The main parts of the basin runoff yield are stressed.According to relationship between distribution curve of basin infiItration capacity and runoff yield process,the authOr absorbs the advantages of stran-ford basin hydrology model,simplifies and improves the general structure and decreases model parameters.Inthe light of conventional computation method for antecedent influence rainfall,basin runoff yield event modelis formed.The model has only four optimized parameters. It is better than existing model computation meth-ods which are complicated and hard to master and use,strives to be simple and feasible. the model can fore-cast actural flood and improves utilization effects.The model was applied in Danjiang and Xunhe which aretributaries of Hanjiang. 102 flood processes within 21 years were simulated and checked by data of 26 floodprocesses within 6 years. It is also used in Donglin hydrological station on Zhouhe which is the tributary ofQujiang and on Yuehe which is the tributary of Hanjiang.Their rate of quality for runoff yield exceeds 80%.The experinces has shown that the model is simple and feasible,and worth to research and poprlarize. It is arnew model with good application effects.