湖泊科学Issue(1)：58-66,9.
城市缓流水体生物膜群落与环境因子响应关系
Relationship between the biofilm microbial communities and the environmental factors of municipal slow-flow water
摘要
Abstract
The objective of this paper was to study the biofilm microbial communities from Qinhuai River , Stone town moat, Lake Wulong and Lake Xuanwu of Nanjing using phospholipid fatty acid (PLFA) method.(1) It was found that the decreasing of tem-perature and nutrients concentration led to the slowing down of the metabolism rate and even the death of microorganisms .The mi-crobial biomass ranged from 9.16 ×106 to 2.74 ×108cells/g in static water, while in running water, it ranged from 1.69 ×107 to 7.77 ×107 cells/g.The decline of microbial biomass in static water could be attributed to the higher transfer resistance .(2) G-, G+and fungi mainly comprised the microbial community in the order: G->fungi >G+.As temperature decreasing ( T≥8.4℃),the content of functional bacteria in static water fluctuated from 27.41% to 66.20%, while in running water it fluctuated from 43.09% to 68.25%.The difference might be caused by G-and fungi.(3) In static water, temperature, concentration of nitrate and COD largely influenced the growth of functional bacteria , while in running water the concentration of nitrogen was criti-cal.关键词
生物膜/环境因子/微生物量/功能菌群Key words
Biofilm/environmental factors/microbial biomass/functional bacteria引用本文复制引用
金梦婷,朱亮,朱彧,潘兴华..城市缓流水体生物膜群落与环境因子响应关系[J].湖泊科学,2015,(1):58-66,9.基金项目
国家水体污染控制与治理科技重大专项项目（2009ZX07317-007-04）资助．2 （）
