1. Department of Soil Science and Environmental Informatics, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
2. Department of Plant Production and Land Use, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
3. Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Department of Soil Physics and Water Management, Hungarian Academy of Sciences, Budapest, Hungary
4. Department of Physical Geography and Geoinformatics, Faculty of Sciences and Informatics, University of Szeged, Szeged, Hungary
5. Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Department of Soil Mapping and Environmental Informatics, Hungarian Academy of Sciences, Budapest, Hungary