1. College of Forestry and Landscape Architecture; Anhui Agricultural University; 130 Changjiang W Rd Hefei Anhui PR China 230036
2. Agricultural Park Management Center; Anhui Agricultural University; 130 Changjiang W Rd Hefei Anhui PR China 230036
3. Faculty of Natural Resources Management; Lakehead University; 955 Oliver Road Thunder Bay Ontario Canada P7B 5E1