土壤的渗透系数,是指饱和土壤中自由水在单位水压梯度下、在单位时间内通过土壤单位面积的水量。土体及土层的渗透系数,是决定土壤的蓄水、排水能力及对农作物的水分供应能力的重要因素。研究土壤渗透系数如何从某些已知的土壤参数(特别是较易测定而资料浩瀚的参数)经计算而得,具有理论和实际意 Soil permeability coefficient, refers to the saturated soil free water in the unit of water pressure gradient, the amount of water per unit area through the soil in a unit of time. Soil and soil permeability coefficient is to determine the soil water storage, drainage capacity and water supply capacity of crops, an important factor. To study how the soil permeability coefficient is calculated from some of the known soil parameters (especially the more readily available measurements), both theoretical and practical