Construction and application of karst distributed hydrological model
In order to make the distributed hydrological model be better applied to the karst area,a set of improved distributed hydrological model which can be used in the karst area was established according to the hydrological characteristics of karst area.The influence of the improved model on the convergence time step and the optimal cal-culation order was discussed.The influence of underground fissure water and pipeline water on watershed conflu-ence was taken into account during the construction of the model,and the model was improved to be closer to the ac-tual confluence in physical sense.The improved model was applied to study the Qiaoyin River Basin in Fengshan County,Guangxi,and the results of study show that the improved model can simulate the rainfall and runoff process in karst area.
distributed hydrological modelkarst areatime stepoptimal calculation orderQiaoyin River Basin