1. Professor, Dept. of Geography, Univ. of Utah, Salt Lake City, UT 84112-9155.
2. Assistant Professor, School of Urban Design, Wuhan Univ., Wuhan, Hubei 430070, China (corresponding author). ORCID: .
3. Assistant Professor, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, Jiangsu 214000, China.
4. School of Economics and Management, Nanjing Tech Univ., Nanjing 211800, China.