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针对稻田的水分运移,研究了SWAP模型的应用条件并进行了效果验证。在格田尺度上,对土壤在垂直深度上划分为40个单元,确定了SWAP模型的边界条件和初始条件,估算给出模型参数,通过比较田间水层深度检验模拟值与实测值的吻合程度。结果表明,田间水层深度模拟值与实测值吻合较好,SWAP模型可用于模拟稻田的水分运移和相对产量,为稻田水分运移和水稻产量研究提供了方便可行的方法。
Aiming at the water transport in paddy field, the application conditions of SWAP model were studied and the effect was verified. On the grid scale, the vertical depth of soil is divided into 40 units, the boundary conditions and initial conditions of the SWAP model are determined, and the parameters of the model are estimated. By comparing the depth of the field aquifer simulation test value with the measured value of the agreement . The results show that the simulated depth of field water field is in good agreement with the measured value. SWAP model can be used to simulate the water transport and relative yield of paddy field, which provides a convenient and feasible method for the study of paddy field water transport and rice yield.