EN中文
Driving forces of "poplar expansion and cropland shrinkage" in the North China Plain:A case study of Wen'an County,Hebei Province
ZHAO Yu-luan, LI Xiu-bin, XIN Liang-jie, HAO Hai-guang
GEOGRAPHICAL RESEARCH . 2012, (2): 323 -333 .  DOI: 10.11821/yj2012020012