Coliform group counts and fecal coliform group counts were determined by most probable number (MPN ) and bacterium total amounts were measured with dilute platform method.

• 采用多管发酵法(MPN法)测定大肠菌群数和粪大肠菌群数,稀释平板法测定细菌总数,并进行了浮游生物检测,以此对白河南阳段水质做出初步评价。