Abstract:It was very difficult to know the proper size of the field transformation based on the preliminary data, thus WinSRFR model was adopted to predict the experimental results. By comparing the fitted data and experimental results, WinSRFR model was confirmed to be able to predict the result. Moreover, the influence of different length and width of the ridge-borded plots fields on the water advance and regression movement, soil moisture distribution, as well as the efficiency and uniformity of irrigation was simulated. The results show that: in the study area, the border check length increases with the water advance process under a certain border check width, and the water regression process was delayed; meanwhile, the soil water cumulative infiltration increased at the same position as the head of the ridge, and the influence was obvious. When the border check length was constant and the border check width increased. The flow rate of single width became smaller, the water advance process was promoted and the time of the water regression process became shorter.The soil water cumulative infiltration at the same position as the head of the ridge decreased first, and then increased significantly at about 3/4 of the total length of the ridge. The irrigation furrow of 60-80 m in length and 5-7 m in width can achieve the optimal irrigation quality parameters, furthermore, when the flow of irrigation for 40 L/s was determined, the best flow rate of the single width of the ridge-bordered fields ranged from 5.7 L/(m·s)to 8.0 L/(m·s). The results could provide a scientific basis for making reasonable irrigation and improving the utilization efficiency of water resources in irrigation districts.