The porous‐fiber module (PFM) is an advanced product used for rainfall regulation and storage. Most studies focus on the characteristics of its constituent material while ignoring the impacts of PFM application on infiltration and runoff. In this study, several factors were comprehensively considered in the field control simulated rainfall experiments conducted on bare land, including two types of rainfall intensities, four PFM volumes, and two arrangements of the PFM, to evaluate the impacts. The experiments consisted of measuring soil water content variation, surface runoff of each treatment plot, and the cumulative infiltration obtained by water balance. The results demonstrated that the effect of PFM volume on infiltration and runoff was much greater than that of the PFM arrangement. The addition of PFM could improve the water‐holding capacity of soil; this effect initially strengthened and subsequently weakened with the increase in the PFM volume. The PFM embedding increased the cumulative infiltration of the experimental plots by 5.1–79.2%, delayed the runoff start time by 0–20 min, weakened the peak by 13.6–51.1%, and reduced the runoff‐yielding amount by 11.23–62.53%, compared with those of the control plot. These effects were enhanced as PFM volume increased. An empirical formula, presented as the theoretical influence of PFM volume on the product of the cumulative infiltration multiplied by the Philip model derived by the control plot, was further established for simulating the infiltration process with various PFM volumes.

中文翻译：

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多孔纤维模块增加渗透并减少径流

多孔纤维模块（PFM）是用于降雨调节和存储的高级产品。大多数研究关注其组成材料的特性，而忽略了PFM应用对渗透和径流的影响。在这项研究中，在裸地上进行的田间控制模拟降雨实验中综合考虑了几个因素，包括两种降雨强度，四个PFM体积和两个PFM布置，以评估影响。实验包括测量土壤含水量变化，每个处理区的地表径流以及通过水平衡获得的累积入渗量。结果表明，PFM体积对渗透和径流的影响远大于PFM布置。添加PFM可以提高土壤的持水能力。随着PFM数量的增加，这种影响开始增强，随后减弱。PFM嵌入使实验样地的累积入渗量增加了5.1–79.2％，将径流开始时间延迟了0–20分钟，将峰值减弱了13.6–51.1％，并将径流产生量减少了11.23–62.53％，与对照图相比。随着PFM体积的增加，这些效果会增强。进一步建立了经验公式，表示为PFM体积对累积渗透乘积乘以控制图得出的Philip模型的乘积的理论影响，以模拟各种PFM体积的渗透过程。随着PFM数量的增加，这种影响开始增强，随后减弱。PFM嵌入使实验样地的累积入渗量增加了5.1–79.2％，将径流开始时间延迟了0–20分钟，将峰值减弱了13.6–51.1％，并将径流产生量减少了11.23–62.53％，与对照图相比。随着PFM体积的增加，这些效果会增强。进一步建立了经验公式，表示为PFM体积对累积渗透乘积乘以控制图得出的Philip模型的乘积的理论影响，以模拟各种PFM体积的渗透过程。随着PFM数量的增加，这种影响开始增强，随后减弱。PFM嵌入使实验样地的累积入渗量增加了5.1–79.2％，将径流开始时间延迟了0–20分钟，将峰值减弱了13.6–51.1％，并将径流产生量减少了11.23–62.53％，与对照图相比。随着PFM体积的增加，这些效果会增强。进一步建立了经验公式，表示为PFM体积对累积渗透乘积乘以控制图得出的Philip模型的乘积的理论影响，以模拟各种PFM体积的渗透过程。与对照样区相比，峰值降低了13.6-51.1％，径流产生量减少了11.23-62.53％。随着PFM体积的增加，这些效果会增强。进一步建立了经验公式，表示为PFM体积对累积渗透乘积乘以控制图得出的Philip模型的乘积的理论影响，以模拟各种PFM体积的渗透过程。与对照样区相比，峰值降低了13.6-51.1％，径流产生量减少了11.23-62.53％。随着PFM体积的增加，这些效果会增强。进一步建立了经验公式，表示为PFM体积对累积渗透乘积乘以控制图得出的Philip模型的乘积的理论影响，以模拟各种PFM体积的渗透过程。