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Soil column experiments to quantify vadose zone water fluxes in arid settings

Pfletschinger, Heike ; Engelhardt, Irina ; Piepenbrink, Matthias ; Koniger, F. ; Schuhmann, R. ; Kallioras, A. ; Schüth, Christoph (2012)
Soil column experiments to quantify vadose zone water fluxes in arid settings.
In: Environmental Earth Sciences, 65 (5)
doi: 10.1007/s12665-011-1257-8
Article, Bibliographie

Abstract

For the determination of groundwater recharge processes in arid environments, vadose zone water fluxes and water storage should be considered. To better understand and quantify vadose zone processes influencing groundwater recharge, a soil column experimental setup has been developed that mimics arid atmospheric conditions and measures water and temperature fluxes in high temporal and spatial resolution. The focus of the experiment was on the determination of water infiltration, redistribution, evaporation and percolation under non-isothermal conditions. TDR rod sensors and a specific TDR "Taupe" cable sensor were used for water content measurements and allowed the infiltration fronts to be traced over the whole column length. Applying single irrigations of different amount and intensity showed the applicability of the experimental setup for the measurement of water movement in the unsaturated soil column.

Item Type: Article
Erschienen: 2012
Creators: Pfletschinger, Heike ; Engelhardt, Irina ; Piepenbrink, Matthias ; Koniger, F. ; Schuhmann, R. ; Kallioras, A. ; Schüth, Christoph
Type of entry: Bibliographie
Title: Soil column experiments to quantify vadose zone water fluxes in arid settings
Language: English
Date: March 2012
Publisher: Springer-Verlag
Journal or Publication Title: Environmental Earth Sciences
Volume of the journal: 65
Issue Number: 5
DOI: 10.1007/s12665-011-1257-8
URL / URN: http://link.springer.com/10.1007/s12665-011-1257-8
Abstract:

For the determination of groundwater recharge processes in arid environments, vadose zone water fluxes and water storage should be considered. To better understand and quantify vadose zone processes influencing groundwater recharge, a soil column experimental setup has been developed that mimics arid atmospheric conditions and measures water and temperature fluxes in high temporal and spatial resolution. The focus of the experiment was on the determination of water infiltration, redistribution, evaporation and percolation under non-isothermal conditions. TDR rod sensors and a specific TDR "Taupe" cable sensor were used for water content measurements and allowed the infiltration fronts to be traced over the whole column length. Applying single irrigations of different amount and intensity showed the applicability of the experimental setup for the measurement of water movement in the unsaturated soil column.

Uncontrolled Keywords: Column experiments,Groundwater recharge,TDR,Unsaturated water flow,Vadose zone
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Earth Science > Hydrogeology
Date Deposited: 17 Apr 2018 12:24
Last Modified: 12 Jan 2019 21:20
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