College of Urban and Environmental Sciences,Peking University,Beijing 100871,China;
School of Urban Planning and Design,Peking University,Shenzhen 518055,Guangdong,China;
College of Urban and Environmental Sciences,Peking University,Beijing 100871,China;
Center for Population and Development Studies,Renmin University of China,Beijing 100872,China;
Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China;