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水分是旱区坡耕地作物生长的关键因素。依据土壤水动力学和守恒原理,建立土壤层析水流模拟模型并开发成计算机模拟模型,采用洛阳旱区坡耕地长期定位试验数据对其进行了验证,模拟值与实测值误差绝对值控制约在10%以内,表明该模型可以应用于旱区坡耕地土壤水分的动态变化研究中。
Moisture is a key factor for crop growth in arable land on dry land. According to the principles of soil hydrodynamics and conservation, the soil-water flow simulation model was established and developed into a computer simulation model. The long-term positioning test data of slope farmland in Luoyang dry land was used to verify it. The absolute value of the error between simulated and measured values was about 10%, indicating that the model can be applied to the dynamic changes of soil moisture on sloping farmland in arid regions.