Simulation of water dynamics of farmland in the piedmont plain of the Taihang Mountains in the North China Plain

Based on field experiments of the water irrigation which have been conducted in the LuanCheng Agriculture Experimental Station of Chinese Academy of Sciences, SWAP (Soil-Water-Atmosphere-Plant) model developed by Wageningen Agricultural College was used as an analysis too1. The parameters in the model were calibrated with the data of irrigation experiment. Some kinds of irrigation schedules in different flow years and certain irrigation quotas in this region were developed. The different irrigation quotas based on different irrigation schedules were simulated with SWAP model. The guidance irrigation schedule was put forward as five irrigation times in winter-wheat field and one irrigation time in the summer-corn field in median flow year. The optimal irrigation schedule would be useful for reference of water use of the farmland in this region.