Effect of Different Plant Height on Microbial Community Functional Diversity in Cenchrus Fungigraminus Rhizosphere Soil
To explore the metabolic functional diversity of the rhizosphere microbial community of different JUJUNCAO heights in Yingkou City,Liaoning Province.Rhizosphere soil of 4-metre-high JUJUNCAO and 1-metre-high JUJUNCAO and soil of bare land as control soil were taken and the functional diversity of microbial community were analyzed.The results indicated that AWCD and the diversity index were in the order of 4-metre-high>1-metre-high>control group,from highest to lowest.The principal component analysis showed that 4-hydroxy benzoic acid and Glucose-1-phosphate and PCI had a high positive correlation,while Itaconic acid had high positive correlation with PC2.Therefore,the results showed that the metabolic functional diver-sity of the rhizosphere microbial community was:4-metre-high JUJUNCAO>1-metre-high JUJUNCAO>control group,which was primarily manifested in improving the richness and metabolic types of soil microbi-al communities in the rhizosphere,and in improving the utilization capacity of the overall carbon source domi-nated by amino acids and amines.