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The influence of measurement methodology on soil infiltration rate

机译:测量方法对土壤入渗率的影响

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摘要

The recorded rate at which water infiltrates into a soil is influenced by the physical condition of the soil, current and previous uses of the soil and the method and equipment used to record the infiltration rate. Soil’s natural variability and the potential inaccuracy associated with particular methods can overestimate infiltration rate. To determine the most suitable apparatus for repeated use at a small-scale, a number of trials were conducted to investigate the influence of the method and moisture regime on the recorded infiltration rate. Trials were conducted on a medium clay-loam soil which has cropping history of maize-winter wheat-grass-grass-grass. It was observed that there was no significant difference in recorded infiltration rates which could be attributed to the practice of pre-saturating the soil prior to measuring infiltration rate. Furthermore, there was no significant difference between the rates recorded using a single ring infiltrometer and a double ring infiltrometer, indicating that these methods are equally suitable for infiltration rate determination when working at this scale which facilitates multiple replications in the same location or within a short timeframe.
机译:水渗透到土壤中的记录速率受土壤的物理条件,土壤当前和先前的使用以及用于记录渗透率的方法和设备的影响。土壤的自然变异性以及与特定方法相关的潜在误差可能会高估渗透率。为了确定最适合小规模重复使用的设备,进行了许多试验,以研究该方法和水分状况对记录的渗透率的影响。在具有玉米-冬小麦-草-草-草的种植历史的中等粘土壤土上进行了试验。观察到记录的入渗率没有显着差异,这可以归因于在测量入渗率之前对土壤进行预饱和的做法。此外,使用单环渗透仪和双环渗透仪记录的速率之间没有显着差异,表明在此规模下工作时,这些方法同样适用于确定渗透率,这有利于在同一位置或短时间内进行多次复制。大体时间。

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