TY - PROGRESS IN GEOGRAPHY A1 - WU Kai, YU Jing jie T1 - Changing Tendencies and Utilizations of Water Resources in the Typical Sand Regions around Beijing Y1 - 2001-08-24 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 209 EP - 216 VL - 20 IS - 3 UR - {https://www.progressingeography.com/EN/10.11820/dlkxjz.2001.03.002} N1 - 10.11820/dlkxjz.2001.03.002 ER -