1. Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Prague, Czech Republic
2. School of Agricultural, Forestry and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, I-85100 Potenza, Italy
3. Department of Earth and Environmental Sciences, University of Pavia, Via Sant’Epifanio, 14, I-27100 Pavia, Italy