Articles | Volume 27, issue 14
https://doi.org/10.5194/hess-27-2703-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-27-2703-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Impacts of soil management and climate on saturated and near-saturated hydraulic conductivity: analyses of the Open Tension-disk Infiltrometer Meta-database (OTIM)
Guillaume Blanchy
Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium
Lukas Albrecht
Agroscope, Reckenholzstrasse 191, 8046 Zurich, Switzerland
Gilberto Bragato
Council for Agricultural Research and Economics (CREA), Via Po 14, 00198 Rome, Italy
Sarah Garré
Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium
Nicholas Jarvis
Department of Soil and Environment, Swedish University of Agricultural Sciences (SLU), P.O. Box 7014, 750 07 Uppsala, Sweden
John Koestel
CORRESPONDING AUTHOR
Agroscope, Reckenholzstrasse 191, 8046 Zurich, Switzerland
Department of Soil and Environment, Swedish University of Agricultural Sciences (SLU), P.O. Box 7014, 750 07 Uppsala, Sweden
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Short summary
We collated the Open Tension-disk Infiltrometer Meta-database (OTIM). We analysed topsoil hydraulic conductivities at supply tensions between 0 and 100 mm of 466 data entries. We found indications of different flow mechanisms at saturation and at tensions >20 mm. Climate factors were better correlated with near-saturated hydraulic conductivities than soil properties. Land use, tillage system, soil compaction and experimenter bias significantly influenced K to a similar degree to soil properties.
We collated the Open Tension-disk Infiltrometer Meta-database (OTIM). We analysed topsoil...