一、土壤水分特征曲线(一)土壤水分特征曲线土壤中的水分都处在一定的吸力下,随着土壤含水量的变化,水分吸力也随着发生变化.含水量和吸力之间的这种关系比较复杂,可用曲线表示,这种曲线叫做土壤水分特征曲线. First, the soil water characteristics curve (a) the soil water characteristics curve Soil moisture are under a certain suction, with the changes in soil moisture, moisture suction also changes with water content and suction between this The relationship is more complex, available curve that this curve is called soil moisture curve.