The changing patterns of cropland conversion to built-up land in China from 1987 to 2010

Hongrun Ju1,2, Zengxiang Zhang1, Xiaoli Zhao1, Wenbin Wu3, Xiao Wang1 and Lijun Zuo1, (1)RADI Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China, (2)University of California Santa Barbara, Department of Goegraphy, Santa Barbara, CA, United States, (3)Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China