[1] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Reg Sustainable Dev Modeling, Beijing 100101, Peoples R China
[2] China Commun & Transportat Assoc, Beijing 100053, Peoples R China
[3] Louisiana State Univ, Dept Geog & Anthropol, Baton Rouge, LA 70803 USA
[4] Yunnan Univ Finance & Econ, Sch Urban & Environm Studies, Kunming 650221, Yunnan, Peoples R China