@article{ZHANG Ying_552, author = {ZHANG Ying, LI Xiubin, SONG Wei, SHI Tiechou}, title = {Effect of agricultural laborer on cropland abandonment under land circulation at different levels in Wulong County, Chongqing City}, publisher = {PROGRESS IN GEOGRAPHY}, year = {2014}, journal = {PROGRESS IN GEOGRAPHY}, volume = {33}, number = {4}, eid = {552}, pages = {552-560}, keywords = {land circulation;cropland abandonment;agricultural laborer;level;Wulong County, Chongqing City}, doi = https://www.progressingeography.com/EN/10.11820/dlkxjz.2014.04.012 }