TY - PROGRESS IN GEOGRAPHY A1 - JIN Zhao,QI Yuchun,DONG Yunshe T1 - Shrub Encroachment and Accompanied Changes of Biogeochemistry Cycles in Semiar id and Ar id Gr asslands Y1 - 2007-07-25 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 23 EP - 32 VL - 26 IS - 4 UR - {https://www.progressingeography.com/EN/10.11820/dlkxjz.2007.04.005} N1 - 10.11820/dlkxjz.2007.04.005 ER -