Soil Infiltration rate
In use from 2015-01-01
- Stainless Steel Cylinders 28.5cm ID x 22.8cm Ht
- Ohaus Ranger 3000 Scale
- Mariotte-syphon (25L carboy with spigot, PVC pipe, silicon epoxy, flexible tubing, vacuum grease)
- 20L carboys for water bringing well water to air temperature.
- Plastic driving plate
- Rubber mallet
- Infiltration rate is measured using a single-ring infiltrometer method.
- Cylinder is driven 5cm with a plastic driving plate and rubber mallet into the soil and allowed to settle for at least 24 hours.
- The soil inside the cylinder is flooded with water at air temperature.
- A constant water depth of 10cm in the cylinder is maintained through a Mariotte-syphon.
- The weight of the water in the Mariotte-syphon is measured every 10 seconds using a scale until the rate becomes constant.
- Infiltration rates are estimated from the linear portions of the measurements in each location.
- Linear regression is fitted to the linear portion and used to determine steady infiltration.
In row-cropping treatments T1-T5, rates are measured in between soybean and poplar rows. Tire tracks and paths are avoided in all treatments.
Reynolds, W. D., Elrick, D. E., & Youngs, E. G. (2002). Ring or Cylinder Infiltrometers (Vadose Zone). In: J.H. Dane and G.C. Topp (Eds.), Methods of Soil Analysis: Part 4 – Physical Methods. Soil Science Society of America Book Series 5. Madison, WI. pp. 818-826.
Bouwer, H. (1986). Intake rate: cylinder infiltrometer. In: A. Klute (Ed.), Methods of Soil Analysis: Part I – Physical and Mineralogical Methods. Soil Science Society of America Book Series 5. Madison, WI.. pp. 825–844.