【摘要】 针对蓄水坑灌法中非均质单坑土壤水分问题 ,建立了数学模型 ,并采用 ADI(交替方向隐式 )差分法进行求解以模拟非均质土土壤水分运动规律。物理模型试验验证表明其与数值模拟结果基本相符 ,说明将此方法用于果树单坑灌溉入渗问题的研究是行之有效的 ,对促进果树灌溉技术的进一步研究具有重要意义更多还原

【Abstract】 To settle the problem of non homogeneous soil moisture in water storage pit,a numerical model was founded. ADI (Alternating Direction Implicit) iteration method was used to obtain the soil moisture movement rule in non homogeneous soil. The results of the experiment and numerical simulation are basically in accordance. It reveals that this method is effective and has a significant value for accelerating the further research about orchard irrigation.更多还原