Results showed that 1 old world bluestem which mainly constitute the old world bluestem Shrub Grassland, had highest degree of dominate,sedge(Carex spp.

• 试验结果表明：1、白羊草灌丛草地以建群种白羊草的优势度最高，其次是苔草、隐子草、达乌里胡枝子等。