Soil microbes were collected from the root zone of dominant native plants Leymus chinensis and Stipa baicalensis on Hulunber meadow.The diversity and dominant species of microbes were analyzed based on isolation

culture and biochemical analysis.The results demonstrated that the treatments could be ranked according to the gross amount of microbes in a descending order as: Leymus chinensisStipa baicalensisControl.However

no significant difference was found among the treatment(p0.05).In the samples

bacteria had the highest species numbers

actinomyces had the intermediate

and fungi had the lowest(p0.01).Specifically

36 colonies of bacteria belonging to 7 genera

21 colonies of actinomyces belonging to 4 genera

and 17 fungi culturists of 3 genera were identified in the root zone soil of Leymus chinensis along.