Potential promoted productivity and spatial patterns of medium- and low-yield cropland land in China

Huimin YAN, Yongzan JI, Jiyuan LIU, Fang LIU, Yunfeng HU, Wenhui KUANG

地理学报(英文版) . 2016, (3): 259 -271 . DOI: 10.1007/s11442-016-1267-2