- Johanna Pausch (Associate Faculty Member, Dept. of Soil Science of Temperate Ecosystems, University of Göttingen, Germany), 2012, 2015
- Sebastian Löppmann (PhD student, Dept. of Soil Science of Temperate Ecosystems, University of Göttingen, Germany), 2015
- Anna Kühnel, Germany (PhD student, Dept. of Soil Physics, University of Bayreuth, Germany), 2014
- Xingliang Xu (Associate Professor at
Beijing Institute of Geography and Natural Resources, Chinese Academy of Sciences, China), 2013
- Xueyong Pang (Associate Professor at
Chengdu Institute of Biology, Chinese Academy of Sciences, China), 2012-13
- Xiaotao Lv (Associate Professor at
Institute of Applied Ecology, China), 2013
-
Yuanying Liu (Professor at
Northeast Agricultural University, China), 2009
-
Ilya Yevdokimov (Professor at
Institute of Physicochemical and Biological Problems in Soil Science, Russian
Academy of Sciences, Russia), 2007-2008
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Yakov Kuzyakov (Professor at University of Göttingen, Germany),
1999-2000, 2001