مؤلف: Christian V. Stevens

Douglas D. Stokke Department of Natural Resource Ecology and Management, Iowa State University, Ames, USA Qinglin Wu School of Renewable Natural Resources, Louisiana State University Ag Center, Baton Rouge, USA Guangping Han College of Material Science and Engineering, Northeast Forestry University, Harbin, China Series Editor Christian Stevens Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium