TY - PROGRESS IN GEOGRAPHY A1 - DU Guoming, CHAI Lujia, LI Yuheng T1 - Theoretical explanation and research framework of cultivated land use system Y1 - 2022-09-28 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 1288 EP - 1299 VL - 41 IS - 7 UR - {https://www.progressingeography.com/EN/10.18306/dlkxjz.2022.07.012} N1 - 10.18306/dlkxjz.2022.07.012 ER -