【作者】 木拉提；

【导师】 王秉谦； 虎胆；

【作者基本信息】 新疆农业大学 ， 水利水电工程， 2000， 硕士

【摘要】 本文以土壤水动力学理论为基础，通过室内试验，确定了非饱和土壤水分运动参数（土壤水分特征曲线、导水率和扩散度），并用一维数值模拟验证了参数的可靠性。建立CN灌水条件下土壤水分运动的数学模型。数值计算结果较吻合于实测数据。在CN灌水条件下土壤含水率最大值，一般在与沟底同一水平线上，土壤表层含水率较低。更多还原

【Abstract】 Based on theory of soil water dynamics, At frist, in this paper the parameters of unsaturated soil water movement, such as soil water characteristic cure, hydraulic conductivity and soil water diffusivity coefficient are dertermind by laboratory observation date. The second, study on the numerical simulation of soil water movement for CN irrigation, the calculated results were verified by laboratory and field test. At last, according to the analyzing and calculating, the model can be used to the soil water movement under condition of CN irrigation.更多还原