提出了滞后演算法流域汇流模型，其概化结构适用于山溪性流域中小水库入流预报中的汇流计算。径流时间分解模型斯得滞后平移可以较为精确地实现；坦化模型采用水箱结构，可以较好地模拟不同径流输入下的坦化响应特性；提出的参数率定算法，在目前计算费用不断下降的情况下，也是容易实现的。应用表明，该模型效果较好 The hysteresis algorithm is proposed to model the catchment convergence. The generalized structure is suitable for the confluence calculation in the small and medium reservoirs. The time-delay model of run-off time-migration can be realized more accurately. The tank model of tank model can be used to simulate the response characteristics of different runoff inputs. The proposed parameter-rate calculation method, at the present time, The case is also easy to implement. Application shows that the model is better