1. Laboratory of Silviculture, School of Forestry and Natural Environment, Faculty of Agriculture-Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki, Greece
2. Department of Environmental Engineering, Faculty of Engineering, University of Western Macedonia, Kozani, Greece
3. Hellenic Agricultural Organization ‘Demeter’, Institute of Mediterranean Forest Ecosystems, Terma Alkmanos, Athens, Greece
4. School of Civil Engineering, Faculty of Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece