1. Institute of Bio- and Geosciences, Agrosphere (IBG-3); Research Center Jülich GmbH; Jülich Germany
2. Central Institute for Engineering, Electronics and Analytics, Analytics (ZEA-3); Research Center Jülich GmbH; Jülich Germany
3. Dep. of Hydraulic and Environmental Engineering; Norwegian Univ. of Science and Technology; Trondheim Norway
4. INRES Soil Science and Soil Ecology; Univ. of Bonn; Bonn Germany
5. Institute of Soil Science and Soil Conservation, Justus Liebig Univ. Giessen; Giessen Germany