In the surface layer , the dominant microbes are usually denitrifying bacteria , followed by anaerobic nitrogen fixing , ammonifying and nitrifying bacteria 土壤氮素代谢微生物高寒草甸土壤氮素代谢微生物的数量及活性在
2.
The factors which affect the growth and function of ammonifying bacteria in suzhou creek are studied with altering the environmental conditions 通过改变氨化菌生长的环境条件，对影响氨化菌生长和功能的影响因素做初步研究。
3.
The population distribution of physiological groups of bacteria ， including ammonifying bacteria , denitrifying bacteria , nitrobacteria and nitroso bacteria , organic phosphate dissolving bacteria and inorganic phosphate dissolving bacteria in water body and sediment of suzhou creek are studied with mpn and flat account method from jan . 2002 to mar . 2003 . the role of these physiological groups of bacteria in suzhou creek aquatic ecosystem is discussed 用最大可能数( mpn )法和平板计数法，于2002年1月2003年3月对苏州河水体和底泥中的主要微生物功能菌群? ?包括有机磷分解菌、无机磷分解菌、氨化菌、亚硝化菌、硝化菌和反硝化菌等进行了生态调查，并分析探讨了它们在苏州河水生态系统中的作用。
4.
2 . the population of functional bacteria in water body varied with adding cm . when the use of cm was 4g , the amount of the total bacteria and phosphorus bacteria were maximum in the fourth day , the amount of denitrifying bacteria were maximum in the tenth day ; when the use of cm was 1g , the amount of ammonifying bacteria were maximum 复合微生物的加入引起水体中的微生物功能菌群数量变化，其中复合微生物添加量为4g时，实验第4天，总菌和磷细菌达到最高峰，第10天，反硝化菌达到最高峰；当复合微生物添加量为1g时，实验第4天氨化菌达到最高峰。
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1 . ecological effects of long - term organophasphate pesticides contamination on soil microflora the long - term effects of organophosphate pesticides contamination on soil microflora were investigated in the present study . little difference in total counts of bacteria , actinomycetes and fungi was observed between the contaminated and the non - contaminated soil . compared with the control there were a slight decrease in total counts of free - living nitrogen - fixer and denitrifying bacteria and a significant increase in those of ammonifying and ammonia - oxidizing and nitrifying _ bacteria in the methylparathion contaminated soil 一、甲基对硫磷长期污染对土壤微生物的生态学效应研究了有机磷农药甲基对硫磷长期污染对土壤微生物的影响，实验表明：土壤细菌、放线菌、真菌总的数量影响不大；自生固氮菌和反硝化细菌数量减少；氨化细菌、亚硝化细菌、硝化细菌的数量在污染土壤中却有所增加；与对照土壤相比，污染土壤呼吸作用下降了29 . 93 ；氨化作用和硝化作用强度得到增强。
6.
On the base of degrading effect of cm , the paper investigated the correlation between microorganisms and nutrient salt in the water body . it showed that the correlation between ammonifying bacteria and nh3 - n was 0 . 74 ; the correlations between nitrifying bacteria , denitrifying bacteria and no _ ( 3 ) - n were 0 . 65 , - 0 . 53 , respectively . the correlation between phosphorus bacteria and po _ ( 4 ) ~ ( 3 ) p was 0 . 76 根据复合微生物对水质的降解效果，选择其使用量为2g时，对水体中微生物功能菌群与营养盐含量的相关性进行了研究，其中氨化菌与氨氮，硝化菌与硝氮，磷细菌与磷酸盐均成正相关关系，相关性r分别为0 . 74 ， 0 . 65 ， 0 . 76 。
