1 Institute of Geographical Sciences and Natural Resources Research, Beijing 100101; 2 College of Economics and Management, Shanxi University, Shanxi 030006; 3 Utrecht University and ITC of the Netherlands
Online:2007-09-29
Published:2012-12-03
About author:1 Professor, Institute of Geographical Sciences and Natural Resources
Research; 2 Assistant Professor, College of Economics and Management, Shanxi
University; 3 PhD Student, Utrecht University and ITC of the Netherlands