TY - Acta Geographica Sinica A1 - LI Jinggang, HE Chunyang, SHI Peijun, CHEN Jin, GU Zhihui, XU Wei T1 - Change Process of Cultivated Land and Its Driving Forces in Northern China during 1983-2001 Y1 - 2004-03-25 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 274 EP - 282 VL - 59 IS - 2 UR - {https://www.geog.com.cn/EN/10.11821/xb200402014} N1 - 10.11821/xb200402014 ER -