TY - 地理科学进展 A1 - LU Qingshui,ZHAO Zhiping T1 - Eco- immigr ation Policy for the Degr aded Rangeland and Responses of Herd Family in the Sour ce Region of Yellow River——Case Study Based on Household Investigation in Maduo County Y1 - 2008-05-25 00:00:00.0 JF - 地理科学进展 JO - 地理科学进展 SP - 19 EP - 28 VL - 27 IS - 3 UR - {https://www.progressingeography.com/CN/10.11820/dlkxjz.2008.03.004} N1 - 10.11820/dlkxjz.2008.03.004 ER -