EGU General Assembly 2017, Vienna

We were present at the EGU General Assembly 2017 with the contribution: Saturated hydraulic conductivity as parameter for modeling applications – comparison of determination methods
(Session SSS7.6/HS8.3.11 Soil water infiltration. Measurements, assessment and modeling.)

We showed a side study about the used measurement methods for hydraulic soil conductivity. The first step was a simple comparison of the results. Measurements from different measurement ranges were extrapolated to saturatation state what pointed out that evaporation method results were three orders of magnitude lower than those of hood infiltrometer and falling head lab method.

The Poster
The Abstract

This lead to the perception that evaporation method measures matric flow while the two latter methods measure macropore flow. As also the bubbling point for the treated soil volume was determined in course of the hood infiltrometer measurements. We hoped that this value included some information about the transition between the two flow domains and we can use it for the better fitting of dual-permeable conductivity functions. By now, analyses based on that idea didn´t yield considerable results.


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