Film hole irrigation is a new type of film‐mulched irrigation technology. To investigate the influences of five factors—bulk density, initial soil water content, irrigation depth, film hole diameter and infiltration time—on the infiltration characteristics of film hole irrigation, 12 experiments were conducted. The infiltration characteristics considered were the cumulative infiltration (I), infiltration rate (i) and average increment of soil water content (∆θ). Two empirical models were established that describe the relationship of I with ∆θ and various influential factors. The proposed models of I and ∆θ had a root mean square error of 5.82 ml and 0.003 cm³ cm⁻³, respectively. The results revealed that the effects of initial soil water content and irrigation depth on I were not significant (P > 0.05) and that the ranking of factors according to degree of influence, from large to small, was infiltration time, soil bulk density and film hole diameter. Soil bulk density, initial soil moisture, irrigation depth and film hole diameter had highly significant effects on ∆θ (P < 0.01), and their ranking according to degree of influence, from large to small, was initial moisture content, soil bulk density, irrigation depth and film hole diameter. © 2020 John Wiley & Sons, Ltd.

中文翻译：

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多因素影响下的膜孔灌水入渗特征

膜孔灌溉是一种新型的覆膜灌溉技术。为了研究五种因素（疏松密度，初始土壤含水量，灌溉深度，膜孔直径和入渗时间）对膜孔灌溉入渗特性的影响，进行了12个实验。考虑的浸润特性是累积渗透（我），渗透速率（我）和土壤水分含量平均增量（Δ θ）。两个经验模型建立描述的关系我与Δ θ和各种影响因素。拟议的模型我和Δ θ的均方根误差分别为5.82 ml和0.003 cm ³  cm ^-3。结果表明，初始土壤含水量和灌溉深度对I的影响不显着（P  > 0.05），并且根据影响程度的大小从大到小的顺序依次是入渗时间，土壤容重和膜厚。孔的直径。土壤容重，初始土壤湿度，灌溉深度和膜孔直径对Δ高度显著效果θ（P  <0.01），并且其根据的影响程度，从大至小的排名，是初始水分含量，土壤容重，灌溉深度和膜孔直径。分级为4 +©2020 John Wiley＆Sons，Ltd.