1 Center for Geospatial Information, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shenzhen, Guangdong 518055, China; E-Mail: [email protected] 2 School of Forestry and Environmental Studies, Yale University, 195 Prospect Street, New Haven, CT 06511, USA 3 Department of Geography, Central Michigan University, Mount Pleasant,...
