To study the method of disposing the defoliation by cellulose decomposing microorganism is to solve the problems of dealing with the defoliation.The optimum initial pH value was 6.0 when city defoliation was the only carbon fountain.Cultivated under static condition was better than shaking condition.The highest CMCase activity was 9.012 U in the 5th day and the highest PFAase activity was 14.806 U in the 7th day.The degradation ratio of dry mass reached 43.42%.The cellulose degradation bacteria system can c...