1. School of Architecture, Si Pailou Campus of Southeast University, Nanjing 210096, China
2. College of Horticulture, Jinling Institute of Technology, Nanjing 210038, China
3. College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
4. School of Humanities, Southeast University, Nanjing 210096, China