The roles of Xilinhot City and Baiyinxile Town and their relationships with Xilingol Biosphere Reserve,Inner Mongolia,China Ecological vulnerability research for Xilingol League, Northern China Risk Assessment of Sand Storm Disaster in Xilingol Region Based on the Underlying Surfaces Factors Study on Traditional Knowledge of Wild Edible Plants Used by the Mongolians in Xilingol Typical Steppe Area* Soil seed banks in different grazing exclusion restoring succession stages in the Xiligole degraded steppe ANALYSIS OF HUMAN_INDUCED STEPPE DEGRADATION BASED ON REMOTE SENSING IN XILIN GOLE, INNER MONGOLIA, CHINA