Soil texture holds the key for rapid determination of soil hydraulic properties in agriculture

PhD defence, Wednesday 1 February 2017, Dan Karup Marning

2017.02.01 | Helle Karvonen

Dan Karup Marning

During his studies, Dan Karup researched how easy-to-measure soil properties, such as soil texture, can be used to cost-effectively replace hydraulic measurements as input for simulations of water and contaminants from agriculture to groundwater reservoirs. Pesticides and other contaminants traveling through the soil ending up in the groundwater poses a health risk, and reducing the costly and time-consuming measurements for environmental risk-assessments are warranted.

Dan Karup investigated six different agricultural fields and found a strong link between the interaction of the soil particles and the soil hydraulic parameters. The findings open a platform for fast and accurate parameterizations for environmental risk assessment when considering risks of leaching of pesticides and other contaminants to the groundwater.



The PhD degree was completed at the Department of Agroecology, Science and Technology, Aarhus University.

This résumé was prepared by the PhD student.

Time: Wednesday 1 February 2017 at 13.00
Place: Lecture Theatre, AU Foulum, Blichers Allé 20, 8830 Tjele.
Title of dissertation: Linking soil texture, water retention from saturation to oven-dry, and flow and transport in agricultural soil
Contact information: Dan Karup, e-mail:, tel.: +45 87157717
Members of the assessment committee:
Professor Ole Wendroth, Department of Plant and Soil Sciences, University of Kentucky, USA
Professor Karsten Høgh Jensen, Department of Geosciences and Natural Resource Management, Copenhagen University, Denmark
Senior Scientist Chris Kjeldsen (chair), Department of Agroecology, Aarhus Univeristy, Denmark.
Main supervisor:
Professor Lis w. de Jonge, Agroecology, Aarhus University
Professor Per Møldrup, Civil engineering, Aalborg University
Language: The PhD dissertation will be defended in English

The defence is public. The dissertation is available for reading at the Graduate School of Science and Technology/GSST, Ny Munkegade 120, building 1520, rooms 128-134, 8000 Aarhus C.

PhD defence
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Revised 17.05.2018