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以室内不同质地土壤连续和间歇入渗对比试验为依据,以土壤粒径小于0.002mm的粘粒含量的质量百分数为反映土壤质地的物理量,分析讨论了土壤质地对间歇入渗减渗效果的影响。研究结果表明,土壤质地是影响土壤间歇入渗减渗效果的主要因素之一;随着土壤粘粒含量的增加,土壤间歇入渗相对减渗率增加;绝对减渗量以土壤粘粒含量为13%时为最大;当土壤粘粒含量小于13%时,随着土壤粘粒含量的增加,绝对减渗量增加;当土壤粘粒含量大于13%时,随着土壤粘粒含量的增加,绝对减渗量急剧减小。
Based on the continuous and intermittent infiltration experiments with different textures of soil in the laboratory, the mass fraction of clay with a particle size of less than 0.002 mm was taken as the physical quantity reflecting the texture of the soil. The effects of soil texture on the infiltration and infiltration of intermittent infiltration were analyzed and discussed influences. The results show that the soil texture is one of the main factors that affect the infiltration and infiltration efficiency of soil intermittent infiltration. With the increase of soil clay content, the relative de-infiltration rate of intermittent soil infiltration increases; the absolute infiltration rate decreases with the clay content of soil as When clay content is less than 13%, with the increase of soil clay content, the absolute amount of water loss increases; when clay content is more than 13%, with the increase of clay content, Absolute reduction of the amount of drastic reduction.