1. Graduate Student, College of Landscape Architecture and Arts, Northwest A&F Univ., Yangling, Shaanxi 712100, China.
2. Undergraduate Student, College of Landscape Architecture and Arts, Northwest A&F Univ., Yangling, Shaanxi 712100, China.
3. Associate Professor, College of Landscape Architecture and Arts, Northwest A&F Univ., Yangling, Shaanxi 712100, China (corresponding author). ORCID: .
4. Professor, School of Planning, Univ. of Cincinnati, Cincinnati 45221, OH.