1. Institute of Biology Komi Scientific Center Ural Branch of Russian Academy of Science, Kommunisticheskaya 28, 167982 Syktyvkar, Russia
2. Department of Physics and Soil Reclamation, Faculty of Soil Science, Lomonosov Moscow State University, 119991 Moscow, Russia
3. Institute of Physicochemical and Biological Problems in Soil Science, RAS, Institutskaya Str., 2/2, 142290 Pushchino, Russia
4. V. N. Sukachev Institute of Forest SB RAS, Akademgorodok 50/28, 660036 Krasnoyarsk, Russia