1. Swedish University of Agricultural Sciences Department of Soil and Environment P.O. Box 7014 75007 Uppsala Sweden
2. KTH Royal Institute of Technology Division of Land and Water Resources Engineering Teknikringen 76 100 44 Stockholm Sweden
3. Synchrotron Light Research Institute (SLRI) 111 University Avenue, Muang District 30000 Nakhon Ratchasima Thailand
4. University of Natural Resources and Life Sciences Department of Forest and Soil Science, Institute of Soil Research Peter-Jordan-Straße 82 1190 Vienna Austria