【摘要】 我国大量分布着土石混合山区,研究该区的土壤水分运动特征对于我国山区水文研究具有重要的现实意义,其中土石混合介质水力参数的确定是一个重要研究内容。利用一维水平入渗法间接的来推求土石混合介质的水力参数,将其求得的参数作为数学模拟软件hydrus-1D的输入参数来模拟水分入渗过程,将实测的累积入渗量与模拟累积入渗量进行对比,其相对误差介于0.04%~0.48%,说明利用一维水平入渗法来确定土石混合介质的水力参数具有较高的精度,满足实际需要。更多还原

【Abstract】 Stony-soil mountain areas largely exist in China.The study on the characteristics of soil water movement of this area has a great realistic significance to the research on mountain zone hydrology of our country.Among which,determination of hydraulic parameters of stony-soil media is an important research content.In this paper,hydraulic parameters of stony-soil media were indirectly obtained through one dimensional horizontal infiltration.Parameters obtained from this method were used as the input parameters of mathematical modeling software called hydrus-1D in order to simulate the process of water infiltration.The relative error between measured and simulated cumulative infiltration lies between 0.04%~0.48%,which indicates that the determination of hydraulic parameters of stony-soil media through one dimensional horizontal infiltration have higher precision and could meet the practical needs.更多还原