The Hai River-Bohai Bay area, one of the three key economic areas of China, is severely polluted by pollutant importation from the Hai River. This study, based on the Biolog method and with analysis of principal components and diversity index, provides a comparison and analysis of the microbial metabolism in sediments from this area. The results indicate that the microbial metabolic character is influenced simultaneously by organics （ BOD, COD） and heavy metals （Cr, Cd, Cu, Hg, Ph）. For areas where the pollution by heavy metals dominates, t...
