设施茄子滴灌土壤水分运动数值模拟及验证分析

基于非饱和土壤水动力学理论及根系吸水模型，建立地面滴灌土壤水分运动数学模型，应用HYDRUS-2D模型模拟全生育期不同灌水处理条件下设施茄子滴灌土壤水分动态变化，结果表明：土壤含水量模拟值与实测值之间具有较好的一致性，所建地面滴灌土壤水分运动数学模型能较好地反映滴灌条件下茄子土壤水分运动规律。

Numerical Simulation and Validation Analysis of Soil Water Movement for Protected Eggplant under Drip Irrigation

Based on the unsaturated soil water dynamics and root water uptake model, this paper built a numerical equation of soil water movement for drip irrigation and simulated soil water movement of protected eggplant under different irrigation treatment during the whole growth period with Hydrus-2D model. The result shows that there is good coherence between the experimental data and simulation data, and the equation can well reflect the soil water movement rule of eggplant under drip irrigation. The conclusion can provide theory for the reasonable design and operation of drip irrigation for the protected agriculture; meanwhile, combing with the protected crop water consumption law, it can supply theoretical support to make the high efficient irrigation system for the protected crop.