Fig. 5From: Enhanced short chain fatty acids production from waste activated sludge conditioning with typical agricultural residues: carbon source composition regulates community functionsPrincipal component analysis and hierarchical clustering analysis. a Showed the result of principal component analysis (PCA) of classified OTUs from CS, RS, LES, ABS, and BL; b showed the result of hierarchical clustering analysis of classified OTUs from CS, RS, LES, ABS, and BLBack to article page