Counting of bacteria in biology wastewater treatment process by fish 法對污水生物處理系統(tǒng)中細(xì)菌數(shù)量的計數(shù)
Pulp , paper and board - microbiological examination - total count of bacteria , yeast and mould based on disintegration 紙漿紙和紙板.微生物檢查.基于分解性新陳代謝的細(xì)菌酵母菌和霉菌總數(shù)
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、甲基對硫磷長期污染對土壤微生物的生態(tài)學(xué)效應(yīng)研究了有機磷農(nóng)藥甲基對硫磷長期污染對土壤微生物的影響,實驗表明:土壤細(xì)菌、放線菌、真菌總的數(shù)量影響不大;自生固氮菌和反硝化細(xì)菌數(shù)量減少;氨化細(xì)菌、亞硝化細(xì)菌、硝化細(xì)菌的數(shù)量在污染土壤中卻有所增加;與對照土壤相比,污染土壤呼吸作用下降了29 . 93 ;氨化作用和硝化作用強度得到增強。