Extraction and analysis of abandoned farmland:A case study of Qingyun and Wudi counties in Shandong Province

Guofeng XIAO, Xiufang ZHU, Chenyao HOU, Xingsheng XIA

地理学报(英文版) . 2019, (4): 581 -597 . DOI: 10.1007/s11442-019-1616-z