TY - PROGRESS IN GEOGRAPHY A1 - XU Yong, Roy C.Sidle, JING Ke T1 - A Discussion on Some Problems of Eco-environment Construction and Rural Economic Development in the Loess Hilly-gully Region Y1 - 2002-03-24 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 130 EP - 138 VL - 21 IS - 2 UR - {https://www.progressingeography.com/EN/10.11820/dlkxjz.2002.02.005} N1 - 10.11820/dlkxjz.2002.02.005 ER -