1Department of Forestry, Almus Vocational School, Tokat Gaziosmanpaşa University, 60250 Tokat, Turkey
2Laboratory of Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
3Department of Watershed Sciences, Utah State University, Logan, UT, USA
4Ondokuz Mayis University, Faculty of Engineering, Environmental Engineering Department, 55139 Samsun, Turkey