Xilinguole National Nature Reserve lies in the boundaries of Xilinguole City, the Inner Mongolia Autonomous Region. Covering a total area of 10,786 square kilometers, Xilinguole National Nature Reserve was established in 1985, the first grassland nature reserve in China, and joined the International Man and Biosphere Reserve Network in 1987. As a matter of fact, with its typicality, Xilinguole Grassland attracted great attention from botanists at home and abroad as early as 1930s