Rapid multipoint method,replica technique,autoradiography signature probe are used in the study on physiological groups of bacteria.Physiological groups of bacteria are partyies to the matter cycle in water.They have important indication action on water pollution.Through physiological groups of bacteria,we can inquire into treatment mechanisms of water treatment system .The kinds and number in soil are affected by the special factors in soil and soil qulity greatly.The sorts and numbers in th...