1. School of Architecture and Design, Beijing Jiaotong University, Beijing 100044, China
2. Territorial Space and Transport Coordinated Development Institute, Beijing Jiaotong University, Beijing 100044, China
3. College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China
4. College of Landscape Architecture and Art, Northwest A&F University, Xianyang 712100, China