TY - PROGRESS IN GEOGRAPHY A1 - LI Meijiao, HE Fanneng, XIAO Ran T1 - Characteristics of cropland change in China, the United States, Brazil and India over the past 300 years Y1 - 2015-01-25 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 64 EP - 72 VL - 34 IS - 1 UR - {https://www.progressingeography.com/EN/10.11820/dlkxjz.2015.01.008} N1 - 10.11820/dlkxjz.2015.01.008 ER -