TY - PROGRESS IN GEOGRAPHY A1 - ZHANG Ying, LI Xiubin, SONG Wei, SHI Tiechou T1 - Effect of agricultural laborer on cropland abandonment under land circulation at different levels in Wulong County, Chongqing City Y1 - 2014-04-25 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 552 EP - 560 VL - 33 IS - 4 UR - {https://www.progressingeography.com/EN/10.11820/dlkxjz.2014.04.012} N1 - 10.11820/dlkxjz.2014.04.012 ER -